diff options
| author |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-10-03 20:38:43 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-10-03 20:38:43 +0200 |
| commit | a7ae50fc34eb985b4ce9c8c8d937394890f7c36c (patch) | |
| tree | 31e6534745f0edf92769fe37a4b096ea02c50878 /drivers/thermal | |
| parent | thermal: Drop duplicate words from comments (diff) | |
| parent | thermal: core: Increase maximum number of trip points (diff) | |
| download | linux-dev-a7ae50fc34eb985b4ce9c8c8d937394890f7c36c.tar.xz linux-dev-a7ae50fc34eb985b4ce9c8c8d937394890f7c36c.zip | |
Merge branch 'thermal-core'
Merge core thermal control changes for 6.1-rc1:
- Increase maximum number of trip points in the thermal core (Sumeet
Pawnikar).
- Replace strlcpy() with unused retval with strscpy() in the core
thermal control code (Wolfram Sang).
- Do not lock thermal zone mutex in the user space governor (Rafael
Wysocki)
- Rework the device tree initialization, convert the drivers to the
new API and remove the old OF code (Daniel Lezcano)
- Fix return value to -ENODEV when searching for a specific thermal
zone which does not exist (Daniel Lezcano)
- Fix the return value inspection in of_thermal_zone_find() (Dan
Carpenter)
- Fix kernel panic when KASAN is enabled as it detects use after
free when unregistering a thermal zone (Daniel Lezcano)
- Move the set_trip ops inside the therma sysfs code (Daniel Lezcano)
- Remove unnecessary error message as it is already showed in the
underlying function (Jiapeng Chong)
- Rework the monitoring path and move the locks upper in the call
stack to fix some potentials race windows (Daniel Lezcano)
- Fix lockdep_assert() warning introduced by the lock rework (Daniel
Lezcano)
- Revert the Mellanox 'hotter thermal zone' feature because it is
already handled in the thermal framework core code (Daniel Lezcano)
* thermal-core: (47 commits)
thermal: core: Increase maximum number of trip points
thermal: move from strlcpy() with unused retval to strscpy()
thermal: gov_user_space: Do not lock thermal zone mutex
Revert "mlxsw: core: Add the hottest thermal zone detection"
thermal/core: Fix lockdep_assert() warning
thermal/core: Move the mutex inside the thermal_zone_device_update() function
thermal/core: Move the thermal zone lock out of the governors
thermal/governors: Group the thermal zone lock inside the throttle function
thermal/core: Rework the monitoring a bit
thermal/core: Rearm the monitoring only one time
thermal/drivers/qcom/spmi-adc-tm5: Remove unnecessary print function dev_err()
thermal/of: Remove old OF code
thermal/core: Move set_trip_temp ops to the sysfs code
thermal/drivers/samsung: Switch to new of thermal API
regulator/drivers/max8976: Switch to new of thermal API
Input: sun4i-ts - switch to new of thermal API
iio/drivers/sun4i_gpadc: Switch to new of thermal API
hwmon/drivers/core: Switch to new of thermal API
hwmon: pm_bus: core: Switch to new of thermal API
ata/drivers/ahci_imx: Switch to new of thermal API
...
Diffstat (limited to 'drivers/thermal')
45 files changed, 740 insertions, 1155 deletions
diff --git a/drivers/thermal/amlogic_thermal.c b/drivers/thermal/amlogic_thermal.c index e61b91d14ad1..d30cb791e63c 100644 --- a/drivers/thermal/amlogic_thermal.c +++ b/drivers/thermal/amlogic_thermal.c @@ -179,12 +179,12 @@ static int amlogic_thermal_disable(struct amlogic_thermal *data) return 0; } -static int amlogic_thermal_get_temp(void *data, int *temp) +static int amlogic_thermal_get_temp(struct thermal_zone_device *tz, int *temp) { unsigned int tval; - struct amlogic_thermal *pdata = data; + struct amlogic_thermal *pdata = tz->devdata; - if (!data) + if (!pdata) return -EINVAL; regmap_read(pdata->regmap, TSENSOR_STAT0, &tval); @@ -195,7 +195,7 @@ static int amlogic_thermal_get_temp(void *data, int *temp) return 0; } -static const struct thermal_zone_of_device_ops amlogic_thermal_ops = { +static const struct thermal_zone_device_ops amlogic_thermal_ops = { .get_temp = amlogic_thermal_get_temp, }; @@ -276,10 +276,10 @@ static int amlogic_thermal_probe(struct platform_device *pdev) return PTR_ERR(pdata->sec_ao_map); } - pdata->tzd = devm_thermal_zone_of_sensor_register(&pdev->dev, - 0, - pdata, - &amlogic_thermal_ops); + pdata->tzd = devm_thermal_of_zone_register(&pdev->dev, + 0, + pdata, + &amlogic_thermal_ops); if (IS_ERR(pdata->tzd)) { ret = PTR_ERR(pdata->tzd); dev_err(dev, "Failed to register tsensor: %d\n", ret); diff --git a/drivers/thermal/armada_thermal.c b/drivers/thermal/armada_thermal.c index c2ebfb5be4b3..52d63b3997fe 100644 --- a/drivers/thermal/armada_thermal.c +++ b/drivers/thermal/armada_thermal.c @@ -420,9 +420,9 @@ static struct thermal_zone_device_ops legacy_ops = { .get_temp = armada_get_temp_legacy, }; -static int armada_get_temp(void *_sensor, int *temp) +static int armada_get_temp(struct thermal_zone_device *tz, int *temp) { - struct armada_thermal_sensor *sensor = _sensor; + struct armada_thermal_sensor *sensor = tz->devdata; struct armada_thermal_priv *priv = sensor->priv; int ret; @@ -450,7 +450,7 @@ unlock_mutex: return ret; } -static const struct thermal_zone_of_device_ops of_ops = { +static const struct thermal_zone_device_ops of_ops = { .get_temp = armada_get_temp, }; @@ -928,9 +928,9 @@ static int armada_thermal_probe(struct platform_device *pdev) /* Register the sensor */ sensor->priv = priv; sensor->id = sensor_id; - tz = devm_thermal_zone_of_sensor_register(&pdev->dev, - sensor->id, sensor, - &of_ops); + tz = devm_thermal_of_zone_register(&pdev->dev, + sensor->id, sensor, + &of_ops); if (IS_ERR(tz)) { dev_info(&pdev->dev, "Thermal sensor %d unavailable\n", sensor_id); diff --git a/drivers/thermal/broadcom/bcm2711_thermal.c b/drivers/thermal/broadcom/bcm2711_thermal.c index e9bef5c3414b..1f8651d15160 100644 --- a/drivers/thermal/broadcom/bcm2711_thermal.c +++ b/drivers/thermal/broadcom/bcm2711_thermal.c @@ -31,11 +31,11 @@ struct bcm2711_thermal_priv { struct thermal_zone_device *thermal; }; -static int bcm2711_get_temp(void *data, int *temp) +static int bcm2711_get_temp(struct thermal_zone_device *tz, int *temp) { - struct bcm2711_thermal_priv *priv = data; - int slope = thermal_zone_get_slope(priv->thermal); - int offset = thermal_zone_get_offset(priv->thermal); + struct bcm2711_thermal_priv *priv = tz->devdata; + int slope = thermal_zone_get_slope(tz); + int offset = thermal_zone_get_offset(tz); u32 val; int ret; @@ -54,7 +54,7 @@ static int bcm2711_get_temp(void *data, int *temp) return 0; } -static const struct thermal_zone_of_device_ops bcm2711_thermal_of_ops = { +static const struct thermal_zone_device_ops bcm2711_thermal_of_ops = { .get_temp = bcm2711_get_temp, }; @@ -88,8 +88,8 @@ static int bcm2711_thermal_probe(struct platform_device *pdev) } priv->regmap = regmap; - thermal = devm_thermal_zone_of_sensor_register(dev, 0, priv, - &bcm2711_thermal_of_ops); + thermal = devm_thermal_of_zone_register(dev, 0, priv, + &bcm2711_thermal_of_ops); if (IS_ERR(thermal)) { ret = PTR_ERR(thermal); dev_err(dev, "could not register sensor: %d\n", ret); diff --git a/drivers/thermal/broadcom/bcm2835_thermal.c b/drivers/thermal/broadcom/bcm2835_thermal.c index c8e4344d5a3d..2c67841a1115 100644 --- a/drivers/thermal/broadcom/bcm2835_thermal.c +++ b/drivers/thermal/broadcom/bcm2835_thermal.c @@ -88,9 +88,9 @@ static int bcm2835_thermal_temp2adc(int temp, int offset, int slope) return temp; } -static int bcm2835_thermal_get_temp(void *d, int *temp) +static int bcm2835_thermal_get_temp(struct thermal_zone_device *tz, int *temp) { - struct bcm2835_thermal_data *data = d; + struct bcm2835_thermal_data *data = tz->devdata; u32 val = readl(data->regs + BCM2835_TS_TSENSSTAT); if (!(val & BCM2835_TS_TSENSSTAT_VALID)) @@ -135,7 +135,7 @@ static void bcm2835_thermal_debugfs(struct platform_device *pdev) debugfs_create_regset32("regset", 0444, data->debugfsdir, regset); } -static const struct thermal_zone_of_device_ops bcm2835_thermal_ops = { +static const struct thermal_zone_device_ops bcm2835_thermal_ops = { .get_temp = bcm2835_thermal_get_temp, }; @@ -206,8 +206,8 @@ static int bcm2835_thermal_probe(struct platform_device *pdev) data->clk, rate); /* register of thermal sensor and get info from DT */ - tz = thermal_zone_of_sensor_register(&pdev->dev, 0, data, - &bcm2835_thermal_ops); + tz = devm_thermal_of_zone_register(&pdev->dev, 0, data, + &bcm2835_thermal_ops); if (IS_ERR(tz)) { err = PTR_ERR(tz); dev_err(&pdev->dev, @@ -277,7 +277,7 @@ static int bcm2835_thermal_probe(struct platform_device *pdev) return 0; err_tz: - thermal_zone_of_sensor_unregister(&pdev->dev, tz); + thermal_of_zone_unregister(tz); err_clk: clk_disable_unprepare(data->clk); @@ -290,7 +290,7 @@ static int bcm2835_thermal_remove(struct platform_device *pdev) struct thermal_zone_device *tz = data->tz; debugfs_remove_recursive(data->debugfsdir); - thermal_zone_of_sensor_unregister(&pdev->dev, tz); + thermal_of_zone_unregister(tz); clk_disable_unprepare(data->clk); return 0; diff --git a/drivers/thermal/broadcom/brcmstb_thermal.c b/drivers/thermal/broadcom/brcmstb_thermal.c index 0cedb8b4f00a..c79c6cfdd74d 100644 --- a/drivers/thermal/broadcom/brcmstb_thermal.c +++ b/drivers/thermal/broadcom/brcmstb_thermal.c @@ -105,7 +105,7 @@ static struct avs_tmon_trip avs_tmon_trips[] = { struct brcmstb_thermal_params { unsigned int offset; unsigned int mult; - const struct thermal_zone_of_device_ops *of_ops; + const struct thermal_zone_device_ops *of_ops; }; struct brcmstb_thermal_priv { @@ -150,9 +150,9 @@ static inline u32 avs_tmon_temp_to_code(struct brcmstb_thermal_priv *priv, return (u32)((offset - temp) / mult); } -static int brcmstb_get_temp(void *data, int *temp) +static int brcmstb_get_temp(struct thermal_zone_device *tz, int *temp) { - struct brcmstb_thermal_priv *priv = data; + struct brcmstb_thermal_priv *priv = tz->devdata; u32 val; long t; @@ -260,9 +260,9 @@ static irqreturn_t brcmstb_tmon_irq_thread(int irq, void *data) return IRQ_HANDLED; } -static int brcmstb_set_trips(void *data, int low, int high) +static int brcmstb_set_trips(struct thermal_zone_device *tz, int low, int high) { - struct brcmstb_thermal_priv *priv = data; + struct brcmstb_thermal_priv *priv = tz->devdata; dev_dbg(priv->dev, "set trips %d <--> %d\n", low, high); @@ -288,7 +288,7 @@ static int brcmstb_set_trips(void *data, int low, int high) return 0; } -static const struct thermal_zone_of_device_ops brcmstb_16nm_of_ops = { +static const struct thermal_zone_device_ops brcmstb_16nm_of_ops = { .get_temp = brcmstb_get_temp, }; @@ -298,7 +298,7 @@ static const struct brcmstb_thermal_params brcmstb_16nm_params = { .of_ops = &brcmstb_16nm_of_ops, }; -static const struct thermal_zone_of_device_ops brcmstb_28nm_of_ops = { +static const struct thermal_zone_device_ops brcmstb_28nm_of_ops = { .get_temp = brcmstb_get_temp, .set_trips = brcmstb_set_trips, }; @@ -318,7 +318,7 @@ MODULE_DEVICE_TABLE(of, brcmstb_thermal_id_table); static int brcmstb_thermal_probe(struct platform_device *pdev) { - const struct thermal_zone_of_device_ops *of_ops; + const struct thermal_zone_device_ops *of_ops; struct thermal_zone_device *thermal; struct brcmstb_thermal_priv *priv; struct resource *res; @@ -341,8 +341,8 @@ static int brcmstb_thermal_probe(struct platform_device *pdev) platform_set_drvdata(pdev, priv); of_ops = priv->temp_params->of_ops; - thermal = devm_thermal_zone_of_sensor_register(&pdev->dev, 0, priv, - of_ops); + thermal = devm_thermal_of_zone_register(&pdev->dev, 0, priv, + of_ops); if (IS_ERR(thermal)) { ret = PTR_ERR(thermal); dev_err(&pdev->dev, "could not register sensor: %d\n", ret); diff --git a/drivers/thermal/broadcom/ns-thermal.c b/drivers/thermal/broadcom/ns-thermal.c index c9468ba9d449..07a8a3f49bd0 100644 --- a/drivers/thermal/broadcom/ns-thermal.c +++ b/drivers/thermal/broadcom/ns-thermal.c @@ -14,19 +14,14 @@ #define PVTMON_CONTROL0_SEL_TEST_MODE 0x0000000e #define PVTMON_STATUS 0x08 -struct ns_thermal { - struct thermal_zone_device *tz; - void __iomem *pvtmon; -}; - -static int ns_thermal_get_temp(void *data, int *temp) +static int ns_thermal_get_temp(struct thermal_zone_device *tz, int *temp) { - struct ns_thermal *ns_thermal = data; - int offset = thermal_zone_get_offset(ns_thermal->tz); - int slope = thermal_zone_get_slope(ns_thermal->tz); + void __iomem *pvtmon = tz->devdata; + int offset = thermal_zone_get_offset(tz); + int slope = thermal_zone_get_slope(tz); u32 val; - val = readl(ns_thermal->pvtmon + PVTMON_CONTROL0); + val = readl(pvtmon + PVTMON_CONTROL0); if ((val & PVTMON_CONTROL0_SEL_MASK) != PVTMON_CONTROL0_SEL_TEMP_MONITOR) { /* Clear current mode selection */ val &= ~PVTMON_CONTROL0_SEL_MASK; @@ -34,50 +29,47 @@ static int ns_thermal_get_temp(void *data, int *temp) /* Set temp monitor mode (it's the default actually) */ val |= PVTMON_CONTROL0_SEL_TEMP_MONITOR; - writel(val, ns_thermal->pvtmon + PVTMON_CONTROL0); + writel(val, pvtmon + PVTMON_CONTROL0); } - val = readl(ns_thermal->pvtmon + PVTMON_STATUS); + val = readl(pvtmon + PVTMON_STATUS); *temp = slope * val + offset; return 0; } -static const struct thermal_zone_of_device_ops ns_thermal_ops = { +static const struct thermal_zone_device_ops ns_thermal_ops = { .get_temp = ns_thermal_get_temp, }; static int ns_thermal_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct ns_thermal *ns_thermal; - - ns_thermal = devm_kzalloc(dev, sizeof(*ns_thermal), GFP_KERNEL); - if (!ns_thermal) - return -ENOMEM; + struct thermal_zone_device *tz; + void __iomem *pvtmon; - ns_thermal->pvtmon = of_iomap(dev_of_node(dev), 0); - if (WARN_ON(!ns_thermal->pvtmon)) + pvtmon = of_iomap(dev_of_node(dev), 0); + if (WARN_ON(!pvtmon)) return -ENOENT; - ns_thermal->tz = devm_thermal_zone_of_sensor_register(dev, 0, - ns_thermal, - &ns_thermal_ops); - if (IS_ERR(ns_thermal->tz)) { - iounmap(ns_thermal->pvtmon); - return PTR_ERR(ns_thermal->tz); + tz = devm_thermal_of_zone_register(dev, 0, + pvtmon, + &ns_thermal_ops); + if (IS_ERR(tz)) { + iounmap(pvtmon); + return PTR_ERR(tz); } - platform_set_drvdata(pdev, ns_thermal); + platform_set_drvdata(pdev, pvtmon); return 0; } static int ns_thermal_remove(struct platform_device *pdev) { - struct ns_thermal *ns_thermal = platform_get_drvdata(pdev); + void __iomem *pvtmon = platform_get_drvdata(pdev); - iounmap(ns_thermal->pvtmon); + iounmap(pvtmon); return 0; } diff --git a/drivers/thermal/broadcom/sr-thermal.c b/drivers/thermal/broadcom/sr-thermal.c index 85ab9edd580c..2b93502543ff 100644 --- a/drivers/thermal/broadcom/sr-thermal.c +++ b/drivers/thermal/broadcom/sr-thermal.c @@ -19,7 +19,6 @@ #define SR_TMON_MAX_LIST 6 struct sr_tmon { - struct thermal_zone_device *tz; unsigned int crit_temp; unsigned int tmon_id; struct sr_thermal *priv; @@ -31,9 +30,9 @@ struct sr_thermal { struct sr_tmon tmon[SR_TMON_MAX_LIST]; }; -static int sr_get_temp(void *data, int *temp) +static int sr_get_temp(struct thermal_zone_device *tz, int *temp) { - struct sr_tmon *tmon = data; + struct sr_tmon *tmon = tz->devdata; struct sr_thermal *sr_thermal = tmon->priv; *temp = readl(sr_thermal->regs + SR_TMON_TEMP_BASE(tmon->tmon_id)); @@ -41,13 +40,14 @@ static int sr_get_temp(void *data, int *temp) return 0; } -static const struct thermal_zone_of_device_ops sr_tz_ops = { +static const struct thermal_zone_device_ops sr_tz_ops = { .get_temp = sr_get_temp, }; static int sr_thermal_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; + struct thermal_zone_device *tz; struct sr_thermal *sr_thermal; struct sr_tmon *tmon; struct resource *res; @@ -84,10 +84,10 @@ static int sr_thermal_probe(struct platform_device *pdev) writel(0, sr_thermal->regs + SR_TMON_TEMP_BASE(i)); tmon->tmon_id = i; tmon->priv = sr_thermal; - tmon->tz = devm_thermal_zone_of_sensor_register(dev, i, tmon, - &sr_tz_ops); - if (IS_ERR(tmon->tz)) - return PTR_ERR(tmon->tz); + tz = devm_thermal_of_zone_register(dev, i, tmon, + &sr_tz_ops); + if (IS_ERR(tz)) + return PTR_ERR(tz); dev_dbg(dev, "thermal sensor %d registered\n", i); } diff --git a/drivers/thermal/db8500_thermal.c b/drivers/thermal/db8500_thermal.c index 121cf853e545..cb10e280681f 100644 --- a/drivers/thermal/db8500_thermal.c +++ b/drivers/thermal/db8500_thermal.c @@ -58,9 +58,9 @@ struct db8500_thermal_zone { }; /* Callback to get current temperature */ -static int db8500_thermal_get_temp(void *data, int *temp) +static int db8500_thermal_get_temp(struct thermal_zone_device *tz, int *temp) { - struct db8500_thermal_zone *th = data; + struct db8500_thermal_zone *th = tz->devdata; /* * TODO: There is no PRCMU interface to get temperature data currently, @@ -72,7 +72,7 @@ static int db8500_thermal_get_temp(void *data, int *temp) return 0; } -static struct thermal_zone_of_device_ops thdev_ops = { +static const struct thermal_zone_device_ops thdev_ops = { .get_temp = db8500_thermal_get_temp, }; @@ -182,7 +182,7 @@ static int db8500_thermal_probe(struct platform_device *pdev) } /* register of thermal sensor and get info from DT */ - th->tz = devm_thermal_zone_of_sensor_register(dev, 0, th, &thdev_ops); + th->tz = devm_thermal_of_zone_register(dev, 0, th, &thdev_ops); if (IS_ERR(th->tz)) { dev_err(dev, "register thermal zone sensor failed\n"); return PTR_ERR(th->tz); diff --git a/drivers/thermal/gov_bang_bang.c b/drivers/thermal/gov_bang_bang.c index 991a1c54296d..a08bbe33be96 100644 --- a/drivers/thermal/gov_bang_bang.c +++ b/drivers/thermal/gov_bang_bang.c @@ -31,8 +31,6 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip) trip, trip_temp, tz->temperature, trip_hyst); - mutex_lock(&tz->lock); - list_for_each_entry(instance, &tz->thermal_instances, tz_node) { if (instance->trip != trip) continue; @@ -65,8 +63,6 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip) instance->cdev->updated = false; /* cdev needs update */ mutex_unlock(&instance->cdev->lock); } - - mutex_unlock(&tz->lock); } /** @@ -100,15 +96,13 @@ static int bang_bang_control(struct thermal_zone_device *tz, int trip) { struct thermal_instance *instance; - thermal_zone_trip_update(tz, trip); + lockdep_assert_held(&tz->lock); - mutex_lock(&tz->lock); + thermal_zone_trip_update(tz, trip); list_for_each_entry(instance, &tz->thermal_instances, tz_node) thermal_cdev_update(instance->cdev); - mutex_unlock(&tz->lock); - return 0; } diff --git a/drivers/thermal/gov_fair_share.c b/drivers/thermal/gov_fair_share.c index 6a2abcfc648f..a4ee4661e9cc 100644 --- a/drivers/thermal/gov_fair_share.c +++ b/drivers/thermal/gov_fair_share.c @@ -82,7 +82,7 @@ static int fair_share_throttle(struct thermal_zone_device *tz, int trip) int total_instance = 0; int cur_trip_level = get_trip_level(tz); - mutex_lock(&tz->lock); + lockdep_assert_held(&tz->lock); list_for_each_entry(instance, &tz->thermal_instances, tz_node) { if (instance->trip != trip) @@ -112,7 +112,6 @@ static int fair_share_throttle(struct thermal_zone_device *tz, int trip) mutex_unlock(&cdev->lock); } - mutex_unlock(&tz->lock); return 0; } diff --git a/drivers/thermal/gov_power_allocator.c b/drivers/thermal/gov_power_allocator.c index 1d5052470967..2d1aeaba38a8 100644 --- a/drivers/thermal/gov_power_allocator.c +++ b/drivers/thermal/gov_power_allocator.c @@ -392,8 +392,6 @@ static int allocate_power(struct thermal_zone_device *tz, int i, num_actors, total_weight, ret = 0; int trip_max_desired_temperature = params->trip_max_desired_temperature; - mutex_lock(&tz->lock); - num_actors = 0; total_weight = 0; list_for_each_entry(instance, &tz->thermal_instances, tz_node) { @@ -404,10 +402,8 @@ static int allocate_power(struct thermal_zone_device *tz, } } - if (!num_actors) { - ret = -ENODEV; - goto unlock; - } + if (!num_actors) + return -ENODEV; /* * We need to allocate five arrays of the same size: @@ -421,10 +417,8 @@ static int allocate_power(struct thermal_zone_device *tz, BUILD_BUG_ON(sizeof(*req_power) != sizeof(*extra_actor_power)); BUILD_BUG_ON(sizeof(*req_power) != sizeof(*weighted_req_power)); req_power = kcalloc(num_actors * 5, sizeof(*req_power), GFP_KERNEL); - if (!req_power) { - ret = -ENOMEM; - goto unlock; - } + if (!req_power) + return -ENOMEM; max_power = &req_power[num_actors]; granted_power = &req_power[2 * num_actors]; @@ -496,8 +490,6 @@ static int allocate_power(struct thermal_zone_device *tz, control_temp - tz->temperature); kfree(req_power); -unlock: - mutex_unlock(&tz->lock); return ret; } @@ -576,7 +568,6 @@ static void allow_maximum_power(struct thermal_zone_device *tz, bool update) struct power_allocator_params *params = tz->governor_data; u32 req_power; - mutex_lock(&tz->lock); list_for_each_entry(instance, &tz->thermal_instances, tz_node) { struct thermal_cooling_device *cdev = instance->cdev; @@ -598,7 +589,6 @@ static void allow_maximum_power(struct thermal_zone_device *tz, bool update) mutex_unlock(&instance->cdev->lock); } - mutex_unlock(&tz->lock); } /** @@ -712,6 +702,8 @@ static int power_allocator_throttle(struct thermal_zone_device *tz, int trip) struct power_allocator_params *params = tz->governor_data; bool update; + lockdep_assert_held(&tz->lock); + /* * We get called for every trip point but we only need to do * our calculations once diff --git a/drivers/thermal/gov_step_wise.c b/drivers/thermal/gov_step_wise.c index 9729b46d0258..cdd3354bc27f 100644 --- a/drivers/thermal/gov_step_wise.c +++ b/drivers/thermal/gov_step_wise.c @@ -117,8 +117,6 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip) dev_dbg(&tz->device, "Trip%d[type=%d,temp=%d]:trend=%d,throttle=%d\n", trip, trip_type, trip_temp, trend, throttle); - mutex_lock(&tz->lock); - list_for_each_entry(instance, &tz->thermal_instances, tz_node) { if (instance->trip != trip) continue; @@ -145,8 +143,6 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip) instance->cdev->updated = false; /* cdev needs update */ mutex_unlock(&instance->cdev->lock); } - - mutex_unlock(&tz->lock); } /** @@ -164,15 +160,13 @@ static int step_wise_throttle(struct thermal_zone_device *tz, int trip) { struct thermal_instance *instance; - thermal_zone_trip_update(tz, trip); + lockdep_assert_held(&tz->lock); - mutex_lock(&tz->lock); + thermal_zone_trip_update(tz, trip); list_for_each_entry(instance, &tz->thermal_instances, tz_node) thermal_cdev_update(instance->cdev); - mutex_unlock(&tz->lock); - return 0; } diff --git a/drivers/thermal/gov_user_space.c b/drivers/thermal/gov_user_space.c index a62a4e90bd3f..8bc1c22aaf03 100644 --- a/drivers/thermal/gov_user_space.c +++ b/drivers/thermal/gov_user_space.c @@ -34,7 +34,8 @@ static int notify_user_space(struct thermal_zone_device *tz, int trip) char *thermal_prop[5]; int i; - mutex_lock(&tz->lock); + lockdep_assert_held(&tz->lock); + thermal_prop[0] = kasprintf(GFP_KERNEL, "NAME=%s", tz->type); thermal_prop[1] = kasprintf(GFP_KERNEL, "TEMP=%d", tz->temperature); thermal_prop[2] = kasprintf(GFP_KERNEL, "TRIP=%d", trip); @@ -43,7 +44,7 @@ static int notify_user_space(struct thermal_zone_device *tz, int trip) kobject_uevent_env(&tz->device.kobj, KOBJ_CHANGE, thermal_prop); for (i = 0; i < 4; ++i) kfree(thermal_prop[i]); - mutex_unlock(&tz->lock); + return 0; } diff --git a/drivers/thermal/hisi_thermal.c b/drivers/thermal/hisi_thermal.c index 19a242c69ce6..d6974db7aaf7 100644 --- a/drivers/thermal/hisi_thermal.c +++ b/drivers/thermal/hisi_thermal.c @@ -434,9 +434,9 @@ static int hi3660_thermal_probe(struct hisi_thermal_data *data) return 0; } -static int hisi_thermal_get_temp(void *__data, int *temp) +static int hisi_thermal_get_temp(struct thermal_zone_device *tz, int *temp) { - struct hisi_thermal_sensor *sensor = __data; + struct hisi_thermal_sensor *sensor = tz->devdata; struct hisi_thermal_data *data = sensor->data; *temp = data->ops->get_temp(sensor); @@ -447,7 +447,7 @@ static int hisi_thermal_get_temp(void *__data, int *temp) return 0; } -static const struct thermal_zone_of_device_ops hisi_of_thermal_ops = { +static const struct thermal_zone_device_ops hisi_of_thermal_ops = { .get_temp = hisi_thermal_get_temp, }; @@ -459,7 +459,7 @@ static irqreturn_t hisi_thermal_alarm_irq_thread(int irq, void *dev) data->ops->irq_handler(sensor); - hisi_thermal_get_temp(sensor, &temp); + temp = data->ops->get_temp(sensor); if (temp >= sensor->thres_temp) { dev_crit(&data->pdev->dev, @@ -484,9 +484,9 @@ static int hisi_thermal_register_sensor(struct platform_device *pdev, int ret, i; const struct thermal_trip *trip; - sensor->tzd = devm_thermal_zone_of_sensor_register(&pdev->dev, - sensor->id, sensor, - &hisi_of_thermal_ops); + sensor->tzd = devm_thermal_of_zone_register(&pdev->dev, + sensor->id, sensor, + &hisi_of_thermal_ops); if (IS_ERR(sensor->tzd)) { ret = PTR_ERR(sensor->tzd); sensor->tzd = NULL; diff --git a/drivers/thermal/imx8mm_thermal.c b/drivers/thermal/imx8mm_thermal.c index af666bd9e8d4..e2c2673025a7 100644 --- a/drivers/thermal/imx8mm_thermal.c +++ b/drivers/thermal/imx8mm_thermal.c @@ -96,15 +96,15 @@ static int imx8mp_tmu_get_temp(void *data, int *temp) return 0; } -static int tmu_get_temp(void *data, int *temp) +static int tmu_get_temp(struct thermal_zone_device *tz, int *temp) { - struct tmu_sensor *sensor = data; + struct tmu_sensor *sensor = tz->devdata; struct imx8mm_tmu *tmu = sensor->priv; - return tmu->socdata->get_temp(data, temp); + return tmu->socdata->get_temp(sensor, temp); } -static struct thermal_zone_of_device_ops tmu_tz_ops = { +static const struct thermal_zone_device_ops tmu_tz_ops = { .get_temp = tmu_get_temp, }; @@ -165,9 +165,9 @@ static int imx8mm_tmu_probe(struct platform_device *pdev) for (i = 0; i < data->num_sensors; i++) { tmu->sensors[i].priv = tmu; tmu->sensors[i].tzd = - devm_thermal_zone_of_sensor_register(&pdev->dev, i, - &tmu->sensors[i], - &tmu_tz_ops); + devm_thermal_of_zone_register(&pdev->dev, i, + &tmu->sensors[i], + &tmu_tz_ops); if (IS_ERR(tmu->sensors[i].tzd)) { ret = PTR_ERR(tmu->sensors[i].tzd); dev_err(&pdev->dev, diff --git a/drivers/thermal/imx_sc_thermal.c b/drivers/thermal/imx_sc_thermal.c index 331a241eb0ef..10bfa6507eb4 100644 --- a/drivers/thermal/imx_sc_thermal.c +++ b/drivers/thermal/imx_sc_thermal.c @@ -43,11 +43,11 @@ struct imx_sc_msg_misc_get_temp { } data; } __packed __aligned(4); -static int imx_sc_thermal_get_temp(void *data, int *temp) +static int imx_sc_thermal_get_temp(struct thermal_zone_device *tz, int *temp) { struct imx_sc_msg_misc_get_temp msg; struct imx_sc_rpc_msg *hdr = &msg.hdr; - struct imx_sc_sensor *sensor = data; + struct imx_sc_sensor *sensor = tz->devdata; int ret; msg.data.req.resource_id = sensor->resource_id; @@ -70,7 +70,7 @@ static int imx_sc_thermal_get_temp(void *data, int *temp) return 0; } -static const struct thermal_zone_of_device_ops imx_sc_thermal_ops = { +static const struct thermal_zone_device_ops imx_sc_thermal_ops = { .get_temp = imx_sc_thermal_get_temp, }; @@ -109,10 +109,10 @@ static int imx_sc_thermal_probe(struct platform_device *pdev) break; } - sensor->tzd = devm_thermal_zone_of_sensor_register(&pdev->dev, - sensor->resource_id, - sensor, - &imx_sc_thermal_ops); + sensor->tzd = devm_thermal_of_zone_register(&pdev->dev, + sensor->resource_id, + sensor, + &imx_sc_thermal_ops); if (IS_ERR(sensor->tzd)) { dev_err(&pdev->dev, "failed to register thermal zone\n"); ret = PTR_ERR(sensor->tzd); diff --git a/drivers/thermal/k3_bandgap.c b/drivers/thermal/k3_bandgap.c index 5d0b3ffc6f46..22c9bcb899c3 100644 --- a/drivers/thermal/k3_bandgap.c +++ b/drivers/thermal/k3_bandgap.c @@ -139,9 +139,9 @@ static int k3_bgp_read_temp(struct k3_thermal_data *devdata, return 0; } -static int k3_thermal_get_temp(void *devdata, int *temp) +static int k3_thermal_get_temp(struct thermal_zone_device *tz, int *temp) { - struct k3_thermal_data *data = devdata; + struct k3_thermal_data *data = tz->devdata; int ret = 0; ret = k3_bgp_read_temp(data, temp); @@ -151,7 +151,7 @@ static int k3_thermal_get_temp(void *devdata, int *temp) return ret; } -static const struct thermal_zone_of_device_ops k3_of_thermal_ops = { +static const struct thermal_zone_device_ops k3_of_thermal_ops = { .get_temp = k3_thermal_get_temp, }; @@ -213,9 +213,9 @@ static int k3_bandgap_probe(struct platform_device *pdev) writel(val, data[id].bgp->base + data[id].ctrl_offset); data[id].tzd = - devm_thermal_zone_of_sensor_register(dev, id, - &data[id], - &k3_of_thermal_ops); + devm_thermal_of_zone_register(dev, id, + &data[id], + &k3_of_thermal_ops); if (IS_ERR(data[id].tzd)) { dev_err(dev, "thermal zone device is NULL\n"); ret = PTR_ERR(data[id].tzd); diff --git a/drivers/thermal/k3_j72xx_bandgap.c b/drivers/thermal/k3_j72xx_bandgap.c index 115a44eb4fbf..16b6bcf1bf4f 100644 --- a/drivers/thermal/k3_j72xx_bandgap.c +++ b/drivers/thermal/k3_j72xx_bandgap.c @@ -247,9 +247,9 @@ static inline int k3_bgp_read_temp(struct k3_thermal_data *devdata, } /* Get temperature callback function for thermal zone */ -static int k3_thermal_get_temp(void *devdata, int *temp) +static int k3_thermal_get_temp(struct thermal_zone_device *tz, int *temp) { - struct k3_thermal_data *data = devdata; + struct k3_thermal_data *data = tz->devdata; int ret = 0; ret = k3_bgp_read_temp(data, temp); @@ -259,7 +259,7 @@ static int k3_thermal_get_temp(void *devdata, int *temp) return ret; } -static const struct thermal_zone_of_device_ops k3_of_thermal_ops = { +static const struct thermal_zone_device_ops k3_of_thermal_ops = { .get_temp = k3_thermal_get_temp, }; @@ -474,10 +474,8 @@ static int k3_j72xx_bandgap_probe(struct platform_device *pdev) writel(val, data[id].bgp->cfg2_base + data[id].ctrl_offset); bgp->ts_data[id] = &data[id]; - ti_thermal = - devm_thermal_zone_of_sensor_register(bgp->dev, id, - &data[id], - &k3_of_thermal_ops); + ti_thermal = devm_thermal_of_zone_register(bgp->dev, id, &data[id], + &k3_of_thermal_ops); if (IS_ERR(ti_thermal)) { dev_err(bgp->dev, "thermal zone device is NULL\n"); ret = PTR_ERR(ti_thermal); diff --git a/drivers/thermal/max77620_thermal.c b/drivers/thermal/max77620_thermal.c index 82d06c7411eb..6451a55eb582 100644 --- a/drivers/thermal/max77620_thermal.c +++ b/drivers/thermal/max77620_thermal.c @@ -44,9 +44,9 @@ struct max77620_therm_info { * Return 0 on success otherwise error number to show reason of failure. */ -static int max77620_thermal_read_temp(void *data, int *temp) +static int max77620_thermal_read_temp(struct thermal_zone_device *tz, int *temp) { - struct max77620_therm_info *mtherm = data; + struct max77620_therm_info *mtherm = tz->devdata; unsigned int val; int ret; @@ -66,7 +66,7 @@ static int max77620_thermal_read_temp(void *data, int *temp) return 0; } -static const struct thermal_zone_of_device_ops max77620_thermal_ops = { +static const struct thermal_zone_device_ops max77620_thermal_ops = { .get_temp = max77620_thermal_read_temp, }; @@ -114,7 +114,7 @@ static int max77620_thermal_probe(struct platform_device *pdev) */ device_set_of_node_from_dev(&pdev->dev, pdev->dev.parent); - mtherm->tz_device = devm_thermal_zone_of_sensor_register(&pdev->dev, 0, + mtherm->tz_device = devm_thermal_of_zone_register(&pdev->dev, 0, mtherm, &max77620_thermal_ops); if (IS_ERR(mtherm->tz_device)) { ret = PTR_ERR(mtherm->tz_device); diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c index ede94eadddda..8440692e3890 100644 --- a/drivers/thermal/mtk_thermal.c +++ b/drivers/thermal/mtk_thermal.c @@ -679,9 +679,9 @@ static int mtk_thermal_bank_temperature(struct mtk_thermal_bank *bank) return max; } -static int mtk_read_temp(void *data, int *temperature) +static int mtk_read_temp(struct thermal_zone_device *tz, int *temperature) { - struct mtk_thermal *mt = data; + struct mtk_thermal *mt = tz->devdata; int i; int tempmax = INT_MIN; @@ -700,7 +700,7 @@ static int mtk_read_temp(void *data, int *temperature) return 0; } -static const struct thermal_zone_of_device_ops mtk_thermal_ops = { +static const struct thermal_zone_device_ops mtk_thermal_ops = { .get_temp = mtk_read_temp, }; @@ -1082,8 +1082,8 @@ static int mtk_thermal_probe(struct platform_device *pdev) platform_set_drvdata(pdev, mt); - tzdev = devm_thermal_zone_of_sensor_register(&pdev->dev, 0, mt, - &mtk_thermal_ops); + tzdev = devm_thermal_of_zone_register(&pdev->dev, 0, mt, + &mtk_thermal_ops); if (IS_ERR(tzdev)) { ret = PTR_ERR(tzdev); goto err_disable_clk_peri_therm; diff --git a/drivers/thermal/qcom/qcom-spmi-adc-tm5.c b/drivers/thermal/qcom/qcom-spmi-adc-tm5.c index 073943cbcc2b..af68adf720cc 100644 --- a/drivers/thermal/qcom/qcom-spmi-adc-tm5.c +++ b/drivers/thermal/qcom/qcom-spmi-adc-tm5.c @@ -357,9 +357,9 @@ static irqreturn_t adc_tm5_gen2_isr(int irq, void *data) return IRQ_HANDLED; } -static int adc_tm5_get_temp(void *data, int *temp) +static int adc_tm5_get_temp(struct thermal_zone_device *tz, int *temp) { - struct adc_tm5_channel *channel = data; + struct adc_tm5_channel *channel = tz->devdata; int ret; if (!channel || !channel->iio) @@ -639,9 +639,9 @@ config_fail: return ret; } -static int adc_tm5_set_trips(void *data, int low, int high) +static int adc_tm5_set_trips(struct thermal_zone_device *tz, int low, int high) { - struct adc_tm5_channel *channel = data; + struct adc_tm5_channel *channel = tz->devdata; struct adc_tm5_chip *chip; int ret; @@ -660,7 +660,7 @@ static int adc_tm5_set_trips(void *data, int low, int high) return ret; } -static struct thermal_zone_of_device_ops adc_tm5_thermal_ops = { +static const struct thermal_zone_device_ops adc_tm5_thermal_ops = { .get_temp = adc_tm5_get_temp, .set_trips = adc_tm5_set_trips, }; @@ -672,11 +672,10 @@ static int adc_tm5_register_tzd(struct adc_tm5_chip *adc_tm) for (i = 0; i < adc_tm->nchannels; i++) { adc_tm->channels[i].chip = adc_tm; - - tzd = devm_thermal_zone_of_sensor_register(adc_tm->dev, - adc_tm->channels[i].channel, - &adc_tm->channels[i], - &adc_tm5_thermal_ops); + tzd = devm_thermal_of_zone_register(adc_tm->dev, + adc_tm->channels[i].channel, + &adc_tm->channels[i], + &adc_tm5_thermal_ops); if (IS_ERR(tzd)) { if (PTR_ERR(tzd) == -ENODEV) { dev_warn(adc_tm->dev, "thermal sensor on channel %d is not used\n", @@ -1026,10 +1025,8 @@ static int adc_tm5_probe(struct platform_device *pdev) adc_tm->base = reg; irq = platform_get_irq(pdev, 0); - if (irq < 0) { - dev_err(dev, "get_irq failed: %d\n", irq); + if (irq < 0) return irq; - } ret = adc_tm5_get_dt_data(adc_tm, node); if (ret) { diff --git a/drivers/thermal/qcom/qcom-spmi-temp-alarm.c b/drivers/thermal/qcom/qcom-spmi-temp-alarm.c index 770f82cc9bca..be785ab37e53 100644 --- a/drivers/thermal/qcom/qcom-spmi-temp-alarm.c +++ b/drivers/thermal/qcom/qcom-spmi-temp-alarm.c @@ -186,9 +186,9 @@ static int qpnp_tm_update_temp_no_adc(struct qpnp_tm_chip *chip) return 0; } -static int qpnp_tm_get_temp(void *data, int *temp) +static int qpnp_tm_get_temp(struct thermal_zone_device *tz, int *temp) { - struct qpnp_tm_chip *chip = data; + struct qpnp_tm_chip *chip = tz->devdata; int ret, mili_celsius; if (!temp) @@ -263,9 +263,9 @@ skip: return qpnp_tm_write(chip, QPNP_TM_REG_SHUTDOWN_CTRL1, reg); } -static int qpnp_tm_set_trip_temp(void *data, int trip, int temp) +static int qpnp_tm_set_trip_temp(struct thermal_zone_device *tz, int trip, int temp) { - struct qpnp_tm_chip *chip = data; + struct qpnp_tm_chip *chip = tz->devdata; const struct thermal_trip *trip_points; int ret; @@ -283,7 +283,7 @@ static int qpnp_tm_set_trip_temp(void *data, int trip, int temp) return ret; } -static const struct thermal_zone_of_device_ops qpnp_tm_sensor_ops = { +static const struct thermal_zone_device_ops qpnp_tm_sensor_ops = { .get_temp = qpnp_tm_get_temp, .set_trip_temp = qpnp_tm_set_trip_temp, }; @@ -446,7 +446,7 @@ static int qpnp_tm_probe(struct platform_device *pdev) * read the trip points. get_temp() returns the default temperature * before the hardware initialization is completed. */ - chip->tz_dev = devm_thermal_zone_of_sensor_register( + chip->tz_dev = devm_thermal_of_zone_register( &pdev->dev, 0, chip, &qpnp_tm_sensor_ops); if (IS_ERR(chip->tz_dev)) { dev_err(&pdev->dev, "failed to register sensor\n"); diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c index e49f58e83513..b1b10005fb28 100644 --- a/drivers/thermal/qcom/tsens.c +++ b/drivers/thermal/qcom/tsens.c @@ -532,9 +532,9 @@ static irqreturn_t tsens_irq_thread(int irq, void *data) return IRQ_HANDLED; } -static int tsens_set_trips(void *_sensor, int low, int high) +static int tsens_set_trips(struct thermal_zone_device *tz, int low, int high) { - struct tsens_sensor *s = _sensor; + struct tsens_sensor *s = tz->devdata; struct tsens_priv *priv = s->priv; struct device *dev = priv->dev; struct tsens_irq_data d; @@ -925,9 +925,9 @@ err_put_device: return ret; } -static int tsens_get_temp(void *data, int *temp) +static int tsens_get_temp(struct thermal_zone_device *tz, int *temp) { - struct tsens_sensor *s = data; + struct tsens_sensor *s = tz->devdata; struct tsens_priv *priv = s->priv; return priv->ops->get_temp(s, temp); @@ -991,7 +991,7 @@ static const struct of_device_id tsens_table[] = { }; MODULE_DEVICE_TABLE(of, tsens_table); -static const struct thermal_zone_of_device_ops tsens_of_ops = { +static const struct thermal_zone_device_ops tsens_of_ops = { .get_temp = tsens_get_temp, .set_trips = tsens_set_trips, }; @@ -1044,9 +1044,9 @@ static int tsens_register(struct tsens_priv *priv) for (i = 0; i < priv->num_sensors; i++) { priv->sensor[i].priv = priv; - tzd = devm_thermal_zone_of_sensor_register(priv->dev, priv->sensor[i].hw_id, - &priv->sensor[i], - &tsens_of_ops); + tzd = devm_thermal_of_zone_register(priv->dev, priv->sensor[i].hw_id, + &priv->sensor[i], + &tsens_of_ops); if (IS_ERR(tzd)) continue; priv->sensor[i].tzd = tzd; diff --git a/drivers/thermal/qoriq_thermal.c b/drivers/thermal/qoriq_thermal.c index 73049f9bea25..d111e218f362 100644 --- a/drivers/thermal/qoriq_thermal.c +++ b/drivers/thermal/qoriq_thermal.c @@ -82,9 +82,9 @@ static struct qoriq_tmu_data *qoriq_sensor_to_data(struct qoriq_sensor *s) return container_of(s, struct qoriq_tmu_data, sensor[s->id]); } -static int tmu_get_temp(void *p, int *temp) +static int tmu_get_temp(struct thermal_zone_device *tz, int *temp) { - struct qoriq_sensor *qsensor = p; + struct qoriq_sensor *qsensor = tz->devdata; struct qoriq_tmu_data *qdata = qoriq_sensor_to_data(qsensor); u32 val; /* @@ -122,7 +122,7 @@ static int tmu_get_temp(void *p, int *temp) return 0; } -static const struct thermal_zone_of_device_ops tmu_tz_ops = { +static const struct thermal_zone_device_ops tmu_tz_ops = { .get_temp = tmu_get_temp, }; @@ -146,9 +146,9 @@ static int qoriq_tmu_register_tmu_zone(struct device *dev, sensor->id = id; - tzd = devm_thermal_zone_of_sensor_register(dev, id, - sensor, - &tmu_tz_ops); + tzd = devm_thermal_of_zone_register(dev, id, + sensor, + &tmu_tz_ops); ret = PTR_ERR_OR_ZERO(tzd); if (ret) { if (ret == -ENODEV) diff --git a/drivers/thermal/rcar_gen3_thermal.c b/drivers/thermal/rcar_gen3_thermal.c index cda7c52f2319..4c1c6f89aa2f 100644 --- a/drivers/thermal/rcar_gen3_thermal.c +++ b/drivers/thermal/rcar_gen3_thermal.c @@ -164,9 +164,9 @@ static int rcar_gen3_thermal_round(int temp) return result * RCAR3_THERMAL_GRAN; } -static int rcar_gen3_thermal_get_temp(void *devdata, int *temp) +static int rcar_gen3_thermal_get_temp(struct thermal_zone_device *tz, int *temp) { - struct rcar_gen3_thermal_tsc *tsc = devdata; + struct rcar_gen3_thermal_tsc *tsc = tz->devdata; int mcelsius, val; int reg; @@ -203,9 +203,9 @@ static int rcar_gen3_thermal_mcelsius_to_temp(struct rcar_gen3_thermal_tsc *tsc, return INT_FIXPT(val); } -static int rcar_gen3_thermal_set_trips(void *devdata, int low, int high) +static int rcar_gen3_thermal_set_trips(struct thermal_zone_device *tz, int low, int high) { - struct rcar_gen3_thermal_tsc *tsc = devdata; + struct rcar_gen3_thermal_tsc *tsc = tz->devdata; u32 irqmsk = 0; if (low != -INT_MAX) { @@ -225,7 +225,7 @@ static int rcar_gen3_thermal_set_trips(void *devdata, int low, int high) return 0; } -static struct thermal_zone_of_device_ops rcar_gen3_tz_of_ops = { +static struct thermal_zone_device_ops rcar_gen3_tz_of_ops = { .get_temp = rcar_gen3_thermal_get_temp, .set_trips = rcar_gen3_thermal_set_trips, }; @@ -508,8 +508,8 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev) for (i = 0; i < priv->num_tscs; i++) { struct rcar_gen3_thermal_tsc *tsc = priv->tscs[i]; - zone = devm_thermal_zone_of_sensor_register(dev, i, tsc, - &rcar_gen3_tz_of_ops); + zone = devm_thermal_of_zone_register(dev, i, tsc, + &rcar_gen3_tz_of_ops); if (IS_ERR(zone)) { dev_err(dev, "Sensor %u: Can't register thermal zone\n", i); ret = PTR_ERR(zone); @@ -560,7 +560,7 @@ static int __maybe_unused rcar_gen3_thermal_resume(struct device *dev) priv->thermal_init(tsc); if (zone->ops->set_trips) - rcar_gen3_thermal_set_trips(tsc, zone->prev_low_trip, + rcar_gen3_thermal_set_trips(zone, zone->prev_low_trip, zone->prev_high_trip); } diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c index 1d729ed4d685..4df42d70d867 100644 --- a/drivers/thermal/rcar_thermal.c +++ b/drivers/thermal/rcar_thermal.c @@ -271,13 +271,6 @@ static int rcar_thermal_get_current_temp(struct rcar_thermal_priv *priv, return 0; } -static int rcar_thermal_of_get_temp(void *data, int *temp) -{ - struct rcar_thermal_priv *priv = data; - - return rcar_thermal_get_current_temp(priv, temp); -} - static int rcar_thermal_get_temp(struct thermal_zone_device *zone, int *temp) { struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone); @@ -323,8 +316,8 @@ static int rcar_thermal_get_trip_temp(struct thermal_zone_device *zone, return 0; } -static const struct thermal_zone_of_device_ops rcar_thermal_zone_of_ops = { - .get_temp = rcar_thermal_of_get_temp, +static struct thermal_zone_device_ops rcar_thermal_zone_of_ops = { + .get_temp = rcar_thermal_get_temp, }; static struct thermal_zone_device_ops rcar_thermal_zone_ops = { @@ -534,7 +527,7 @@ static int rcar_thermal_probe(struct platform_device *pdev) goto error_unregister; if (chip->use_of_thermal) { - priv->zone = devm_thermal_zone_of_sensor_register( + priv->zone = devm_thermal_of_zone_register( dev, i, priv, &rcar_thermal_zone_of_ops); } else { diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c index dc3a9c276a09..819e059cde71 100644 --- a/drivers/thermal/rockchip_thermal.c +++ b/drivers/thermal/rockchip_thermal.c @@ -1211,9 +1211,9 @@ static irqreturn_t rockchip_thermal_alarm_irq_thread(int irq, void *dev) return IRQ_HANDLED; } -static int rockchip_thermal_set_trips(void *_sensor, int low, int high) +static int rockchip_thermal_set_trips(struct thermal_zone_device *tz, int low, int high) { - struct rockchip_thermal_sensor *sensor = _sensor; + struct rockchip_thermal_sensor *sensor = tz->devdata; struct rockchip_thermal_data *thermal = sensor->thermal; const struct rockchip_tsadc_chip *tsadc = thermal->chip; @@ -1224,9 +1224,9 @@ static int rockchip_thermal_set_trips(void *_sensor, int low, int high) sensor->id, thermal->regs, high); } -static int rockchip_thermal_get_temp(void *_sensor, int *out_temp) +static int rockchip_thermal_get_temp(struct thermal_zone_device *tz, int *out_temp) { - struct rockchip_thermal_sensor *sensor = _sensor; + struct rockchip_thermal_sensor *sensor = tz->devdata; struct rockchip_thermal_data *thermal = sensor->thermal; const struct rockchip_tsadc_chip *tsadc = sensor->thermal->chip; int retval; @@ -1239,7 +1239,7 @@ static int rockchip_thermal_get_temp(void *_sensor, int *out_temp) return retval; } -static const struct thermal_zone_of_device_ops rockchip_of_thermal_ops = { +static const struct thermal_zone_device_ops rockchip_of_thermal_ops = { .get_temp = rockchip_thermal_get_temp, .set_trips = rockchip_thermal_set_trips, }; @@ -1326,8 +1326,8 @@ rockchip_thermal_register_sensor(struct platform_device *pdev, sensor->thermal = thermal; sensor->id = id; - sensor->tzd = devm_thermal_zone_of_sensor_register(&pdev->dev, id, - sensor, &rockchip_of_thermal_ops); + sensor->tzd = devm_thermal_of_zone_register(&pdev->dev, id, sensor, + &rockchip_of_thermal_ops); if (IS_ERR(sensor->tzd)) { error = PTR_ERR(sensor->tzd); dev_err(&pdev->dev, "failed to register sensor %d: %d\n", diff --git a/drivers/thermal/rzg2l_thermal.c b/drivers/thermal/rzg2l_thermal.c index 51ae80eda6af..2e0649f38506 100644 --- a/drivers/thermal/rzg2l_thermal.c +++ b/drivers/thermal/rzg2l_thermal.c @@ -73,9 +73,9 @@ static inline void rzg2l_thermal_write(struct rzg2l_thermal_priv *priv, u32 reg, iowrite32(data, priv->base + reg); } -static int rzg2l_thermal_get_temp(void *devdata, int *temp) +static int rzg2l_thermal_get_temp(struct thermal_zone_device *tz, int *temp) { - struct rzg2l_thermal_priv *priv = devdata; + struct rzg2l_thermal_priv *priv = tz->devdata; u32 result = 0, dsensor, ts_code_ave; int val, i; @@ -114,7 +114,7 @@ static int rzg2l_thermal_get_temp(void *devdata, int *temp) return 0; } -static const struct thermal_zone_of_device_ops rzg2l_tz_of_ops = { +static const struct thermal_zone_device_ops rzg2l_tz_of_ops = { .get_temp = rzg2l_thermal_get_temp, }; @@ -207,8 +207,8 @@ static int rzg2l_thermal_probe(struct platform_device *pdev) goto err; } - zone = devm_thermal_zone_of_sensor_register(dev, 0, priv, - &rzg2l_tz_of_ops); + zone = devm_thermal_of_zone_register(dev, 0, priv, + &rzg2l_tz_of_ops); if (IS_ERR(zone)) { dev_err(dev, "Can't register thermal zone"); ret = PTR_ERR(zone); diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index f4ab4c5b4b62..51874d0a284c 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -650,9 +650,9 @@ static void exynos7_tmu_control(struct platform_device *pdev, bool on) writel(con, data->base + EXYNOS_TMU_REG_CONTROL); } -static int exynos_get_temp(void *p, int *temp) +static int exynos_get_temp(struct thermal_zone_device *tz, int *temp) { - struct exynos_tmu_data *data = p; + struct exynos_tmu_data *data = tz->devdata; int value, ret = 0; if (!data || !data->tmu_read) @@ -728,9 +728,9 @@ static void exynos4412_tmu_set_emulation(struct exynos_tmu_data *data, writel(val, data->base + emul_con); } -static int exynos_tmu_set_emulation(void *drv_data, int temp) +static int exynos_tmu_set_emulation(struct thermal_zone_device *tz, int temp) { - struct exynos_tmu_data *data = drv_data; + struct exynos_tmu_data *data = tz->devdata; int ret = -EINVAL; if (data->soc == SOC_ARCH_EXYNOS4210) @@ -750,7 +750,7 @@ out: } #else #define exynos4412_tmu_set_emulation NULL -static int exynos_tmu_set_emulation(void *drv_data, int temp) +static int exynos_tmu_set_emulation(struct thermal_zone_device *tz, int temp) { return -EINVAL; } #endif /* CONFIG_THERMAL_EMULATION */ @@ -997,7 +997,7 @@ static int exynos_map_dt_data(struct platform_device *pdev) return 0; } -static const struct thermal_zone_of_device_ops exynos_sensor_ops = { +static const struct thermal_zone_device_ops exynos_sensor_ops = { .get_temp = exynos_get_temp, .set_emul_temp = exynos_tmu_set_emulation, }; @@ -1091,8 +1091,8 @@ static int exynos_tmu_probe(struct platform_device *pdev) * data->tzd must be registered before calling exynos_tmu_initialize(), * requesting irq and calling exynos_tmu_control(). */ - data->tzd = thermal_zone_of_sensor_register(&pdev->dev, 0, data, - &exynos_sensor_ops); + data->tzd = devm_thermal_of_zone_register(&pdev->dev, 0, data, + &exynos_sensor_ops); if (IS_ERR(data->tzd)) { ret = PTR_ERR(data->tzd); if (ret != -EPROBE_DEFER) @@ -1104,21 +1104,19 @@ static int exynos_tmu_probe(struct platform_device *pdev) ret = exynos_tmu_initialize(pdev); if (ret) { dev_err(&pdev->dev, "Failed to initialize TMU\n"); - goto err_thermal; + goto err_sclk; } ret = devm_request_irq(&pdev->dev, data->irq, exynos_tmu_irq, IRQF_TRIGGER_RISING | IRQF_SHARED, dev_name(&pdev->dev), data); if (ret) { dev_err(&pdev->dev, "Failed to request irq: %d\n", data->irq); - goto err_thermal; + goto err_sclk; } exynos_tmu_control(pdev, true); return 0; -err_thermal: - thermal_zone_of_sensor_unregister(&pdev->dev, data->tzd); err_sclk: clk_disable_unprepare(data->sclk); err_clk: @@ -1136,9 +1134,7 @@ err_sensor: static int exynos_tmu_remove(struct platform_device *pdev) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); - struct thermal_zone_device *tzd = data->tzd; - thermal_zone_of_sensor_unregister(&pdev->dev, tzd); exynos_tmu_control(pdev, false); clk_disable_unprepare(data->sclk); diff --git a/drivers/thermal/sprd_thermal.c b/drivers/thermal/sprd_thermal.c index fff80fc18002..ac884514f116 100644 --- a/drivers/thermal/sprd_thermal.c +++ b/drivers/thermal/sprd_thermal.c @@ -204,9 +204,9 @@ static int sprd_thm_temp_to_rawdata(int temp, struct sprd_thermal_sensor *sen) return clamp(val, val, (u32)(SPRD_THM_RAW_DATA_HIGH - 1)); } -static int sprd_thm_read_temp(void *devdata, int *temp) +static int sprd_thm_read_temp(struct thermal_zone_device *tz, int *temp) { - struct sprd_thermal_sensor *sen = devdata; + struct sprd_thermal_sensor *sen = tz->devdata; u32 data; data = readl(sen->data->base + SPRD_THM_TEMP(sen->id)) & @@ -217,7 +217,7 @@ static int sprd_thm_read_temp(void *devdata, int *temp) return 0; } -static const struct thermal_zone_of_device_ops sprd_thm_ops = { +static const struct thermal_zone_device_ops sprd_thm_ops = { .get_temp = sprd_thm_read_temp, }; @@ -408,10 +408,10 @@ static int sprd_thm_probe(struct platform_device *pdev) sprd_thm_sensor_init(thm, sen); - sen->tzd = devm_thermal_zone_of_sensor_register(sen->dev, - sen->id, - sen, - &sprd_thm_ops); + sen->tzd = devm_thermal_of_zone_register(sen->dev, + sen->id, + sen, + &sprd_thm_ops); if (IS_ERR(sen->tzd)) { dev_err(&pdev->dev, "register thermal zone failed %d\n", sen->id); @@ -523,8 +523,8 @@ static int sprd_thm_remove(struct platform_device *pdev) for (i = 0; i < thm->nr_sensors; i++) { sprd_thm_toggle_sensor(thm->sensor[i], false); - devm_thermal_zone_of_sensor_unregister(&pdev->dev, - thm->sensor[i]->tzd); + devm_thermal_of_zone_unregister(&pdev->dev, + thm->sensor[i]->tzd); } clk_disable_unprepare(thm->clk); diff --git a/drivers/thermal/st/stm_thermal.c b/drivers/thermal/st/stm_thermal.c index 5fd3fb8912a6..78feb802a87d 100644 --- a/drivers/thermal/st/stm_thermal.c +++ b/drivers/thermal/st/stm_thermal.c @@ -302,9 +302,9 @@ static int stm_disable_irq(struct stm_thermal_sensor *sensor) return 0; } -static int stm_thermal_set_trips(void *data, int low, int high) +static int stm_thermal_set_trips(struct thermal_zone_device *tz, int low, int high) { - struct stm_thermal_sensor *sensor = data; + struct stm_thermal_sensor *sensor = tz->devdata; u32 itr1, th; int ret; @@ -350,9 +350,9 @@ static int stm_thermal_set_trips(void *data, int low, int high) } /* Callback to get temperature from HW */ -static int stm_thermal_get_temp(void *data, int *temp) +static int stm_thermal_get_temp(struct thermal_zone_device *tz, int *temp) { - struct stm_thermal_sensor *sensor = data; + struct stm_thermal_sensor *sensor = tz->devdata; u32 periods; int freqM, ret; @@ -474,7 +474,7 @@ static int stm_thermal_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(stm_thermal_pm_ops, stm_thermal_suspend, stm_thermal_resume); -static const struct thermal_zone_of_device_ops stm_tz_ops = { +static const struct thermal_zone_device_ops stm_tz_ops = { .get_temp = stm_thermal_get_temp, .set_trips = stm_thermal_set_trips, }; @@ -539,9 +539,9 @@ static int stm_thermal_probe(struct platform_device *pdev) return ret; } - sensor->th_dev = devm_thermal_zone_of_sensor_register(&pdev->dev, 0, - sensor, - &stm_tz_ops); + sensor->th_dev = devm_thermal_of_zone_register(&pdev->dev, 0, + sensor, + &stm_tz_ops); if (IS_ERR(sensor->th_dev)) { dev_err(&pdev->dev, "%s: thermal zone sensor registering KO\n", @@ -572,7 +572,6 @@ static int stm_thermal_probe(struct platform_device *pdev) return 0; err_tz: - thermal_zone_of_sensor_unregister(&pdev->dev, sensor->th_dev); return ret; } @@ -582,7 +581,6 @@ static int stm_thermal_remove(struct platform_device *pdev) stm_thermal_sensor_off(sensor); thermal_remove_hwmon_sysfs(sensor->th_dev); - thermal_zone_of_sensor_unregister(&pdev->dev, sensor->th_dev); return 0; } diff --git a/drivers/thermal/sun8i_thermal.c b/drivers/thermal/sun8i_thermal.c index 212c87e63a66..e64d06d1328c 100644 --- a/drivers/thermal/sun8i_thermal.c +++ b/drivers/thermal/sun8i_thermal.c @@ -108,9 +108,9 @@ static int sun50i_h5_calc_temp(struct ths_device *tmdev, return -1590 * reg / 10 + 276000; } -static int sun8i_ths_get_temp(void *data, int *temp) +static int sun8i_ths_get_temp(struct thermal_zone_device *tz, int *temp) { - struct tsensor *s = data; + struct tsensor *s = tz->devdata; struct ths_device *tmdev = s->tmdev; int val = 0; @@ -135,7 +135,7 @@ static int sun8i_ths_get_temp(void *data, int *temp) return 0; } -static const struct thermal_zone_of_device_ops ths_ops = { +static const struct thermal_zone_device_ops ths_ops = { .get_temp = sun8i_ths_get_temp, }; @@ -468,10 +468,10 @@ static int sun8i_ths_register(struct ths_device *tmdev) tmdev->sensor[i].tmdev = tmdev; tmdev->sensor[i].id = i; tmdev->sensor[i].tzd = - devm_thermal_zone_of_sensor_register(tmdev->dev, - i, - &tmdev->sensor[i], - &ths_ops); + devm_thermal_of_zone_register(tmdev->dev, + i, + &tmdev->sensor[i], + &ths_ops); if (IS_ERR(tmdev->sensor[i].tzd)) return PTR_ERR(tmdev->sensor[i].tzd); diff --git a/drivers/thermal/tegra/soctherm.c b/drivers/thermal/tegra/soctherm.c index 825eab526619..1efe470f31e9 100644 --- a/drivers/thermal/tegra/soctherm.c +++ b/drivers/thermal/tegra/soctherm.c @@ -421,9 +421,9 @@ static int translate_temp(u16 val) return t; } -static int tegra_thermctl_get_temp(void *data, int *out_temp) +static int tegra_thermctl_get_temp(struct thermal_zone_device *tz, int *out_temp) { - struct tegra_thermctl_zone *zone = data; + struct tegra_thermctl_zone *zone = tz->devdata; u32 val; val = readl(zone->reg); @@ -582,10 +582,9 @@ static int tsensor_group_thermtrip_get(struct tegra_soctherm *ts, int id) return temp; } -static int tegra_thermctl_set_trip_temp(void *data, int trip, int temp) +static int tegra_thermctl_set_trip_temp(struct thermal_zone_device *tz, int trip, int temp) { - struct tegra_thermctl_zone *zone = data; - struct thermal_zone_device *tz = zone->tz; + struct tegra_thermctl_zone *zone = tz->devdata; struct tegra_soctherm *ts = zone->ts; const struct tegra_tsensor_group *sg = zone->sg; struct device *dev = zone->dev; @@ -657,9 +656,9 @@ static void thermal_irq_disable(struct tegra_thermctl_zone *zn) mutex_unlock(&zn->ts->thermctl_lock); } -static int tegra_thermctl_set_trips(void *data, int lo, int hi) +static int tegra_thermctl_set_trips(struct thermal_zone_device *tz, int lo, int hi) { - struct tegra_thermctl_zone *zone = data; + struct tegra_thermctl_zone *zone = tz->devdata; u32 r; thermal_irq_disable(zone); @@ -682,7 +681,7 @@ static int tegra_thermctl_set_trips(void *data, int lo, int hi) return 0; } -static const struct thermal_zone_of_device_ops tegra_of_thermal_ops = { +static const struct thermal_zone_device_ops tegra_of_thermal_ops = { .get_temp = tegra_thermctl_get_temp, .set_trip_temp = tegra_thermctl_set_trip_temp, .set_trips = tegra_thermctl_set_trips, @@ -2194,9 +2193,9 @@ static int tegra_soctherm_probe(struct platform_device *pdev) zone->sg = soc->ttgs[i]; zone->ts = tegra; - z = devm_thermal_zone_of_sensor_register(&pdev->dev, - soc->ttgs[i]->id, zone, - &tegra_of_thermal_ops); + z = devm_thermal_of_zone_register(&pdev->dev, + soc->ttgs[i]->id, zone, + &tegra_of_thermal_ops); if (IS_ERR(z)) { err = PTR_ERR(z); dev_err(&pdev->dev, "failed to register sensor: %d\n", diff --git a/drivers/thermal/tegra/tegra-bpmp-thermal.c b/drivers/thermal/tegra/tegra-bpmp-thermal.c index 5affc3d196be..eb84f0b9dc7c 100644 --- a/drivers/thermal/tegra/tegra-bpmp-thermal.c +++ b/drivers/thermal/tegra/tegra-bpmp-thermal.c @@ -30,9 +30,9 @@ struct tegra_bpmp_thermal { struct tegra_bpmp_thermal_zone **zones; }; -static int tegra_bpmp_thermal_get_temp(void *data, int *out_temp) +static int __tegra_bpmp_thermal_get_temp(struct tegra_bpmp_thermal_zone *zone, + int *out_temp) { - struct tegra_bpmp_thermal_zone *zone = data; struct mrq_thermal_host_to_bpmp_request req; union mrq_thermal_bpmp_to_host_response reply; struct tegra_bpmp_message msg; @@ -60,9 +60,14 @@ static int tegra_bpmp_thermal_get_temp(void *data, int *out_temp) return 0; } -static int tegra_bpmp_thermal_set_trips(void *data, int low, int high) +static int tegra_bpmp_thermal_get_temp(struct thermal_zone_device *tz, int *out_temp) { - struct tegra_bpmp_thermal_zone *zone = data; + return __tegra_bpmp_thermal_get_temp(tz->devdata, out_temp); +} + +static int tegra_bpmp_thermal_set_trips(struct thermal_zone_device *tz, int low, int high) +{ + struct tegra_bpmp_thermal_zone *zone = tz->devdata; struct mrq_thermal_host_to_bpmp_request req; struct tegra_bpmp_message msg; int err; @@ -157,7 +162,7 @@ static int tegra_bpmp_thermal_get_num_zones(struct tegra_bpmp *bpmp, return 0; } -static const struct thermal_zone_of_device_ops tegra_bpmp_of_thermal_ops = { +static const struct thermal_zone_device_ops tegra_bpmp_of_thermal_ops = { .get_temp = tegra_bpmp_thermal_get_temp, .set_trips = tegra_bpmp_thermal_set_trips, }; @@ -200,13 +205,13 @@ static int tegra_bpmp_thermal_probe(struct platform_device *pdev) zone->idx = i; zone->tegra = tegra; - err = tegra_bpmp_thermal_get_temp(zone, &temp); + err = __tegra_bpmp_thermal_get_temp(zone, &temp); if (err < 0) { devm_kfree(&pdev->dev, zone); continue; } - tzd = devm_thermal_zone_of_sensor_register( + tzd = devm_thermal_of_zone_register( &pdev->dev, i, zone, &tegra_bpmp_of_thermal_ops); if (IS_ERR(tzd)) { if (PTR_ERR(tzd) == -EPROBE_DEFER) diff --git a/drivers/thermal/tegra/tegra30-tsensor.c b/drivers/thermal/tegra/tegra30-tsensor.c index 05886684f429..c34501287e96 100644 --- a/drivers/thermal/tegra/tegra30-tsensor.c +++ b/drivers/thermal/tegra/tegra30-tsensor.c @@ -159,9 +159,9 @@ static void devm_tegra_tsensor_hw_disable(void *data) tegra_tsensor_hw_disable(ts); } -static int tegra_tsensor_get_temp(void *data, int *temp) +static int tegra_tsensor_get_temp(struct thermal_zone_device *tz, int *temp) { - const struct tegra_tsensor_channel *tsc = data; + const struct tegra_tsensor_channel *tsc = tz->devdata; const struct tegra_tsensor *ts = tsc->ts; int err, c1, c2, c3, c4, counter; u32 val; @@ -217,9 +217,9 @@ static int tegra_tsensor_temp_to_counter(const struct tegra_tsensor *ts, int tem return DIV_ROUND_CLOSEST(c2 * 1000000 - ts->calib.b, ts->calib.a); } -static int tegra_tsensor_set_trips(void *data, int low, int high) +static int tegra_tsensor_set_trips(struct thermal_zone_device *tz, int low, int high) { - const struct tegra_tsensor_channel *tsc = data; + const struct tegra_tsensor_channel *tsc = tz->devdata; const struct tegra_tsensor *ts = tsc->ts; u32 val; @@ -240,7 +240,7 @@ static int tegra_tsensor_set_trips(void *data, int low, int high) return 0; } -static const struct thermal_zone_of_device_ops ops = { +static const struct thermal_zone_device_ops ops = { .get_temp = tegra_tsensor_get_temp, .set_trips = tegra_tsensor_set_trips, }; @@ -516,7 +516,7 @@ static int tegra_tsensor_register_channel(struct tegra_tsensor *ts, tsc->id = id; tsc->regs = ts->regs + 0x40 * (hw_id + 1); - tsc->tzd = devm_thermal_zone_of_sensor_register(ts->dev, id, tsc, &ops); + tsc->tzd = devm_thermal_of_zone_register(ts->dev, id, tsc, &ops); if (IS_ERR(tsc->tzd)) { if (PTR_ERR(tsc->tzd) != -ENODEV) return dev_err_probe(ts->dev, PTR_ERR(tsc->tzd), diff --git a/drivers/thermal/thermal-generic-adc.c b/drivers/thermal/thermal-generic-adc.c index 73665c3ccfe0..323e273e3298 100644 --- a/drivers/thermal/thermal-generic-adc.c +++ b/drivers/thermal/thermal-generic-adc.c @@ -52,9 +52,9 @@ static int gadc_thermal_adc_to_temp(struct gadc_thermal_info *gti, int val) return temp; } -static int gadc_thermal_get_temp(void *data, int *temp) +static int gadc_thermal_get_temp(struct thermal_zone_device *tz, int *temp) { - struct gadc_thermal_info *gti = data; + struct gadc_thermal_info *gti = tz->devdata; int val; int ret; @@ -68,7 +68,7 @@ static int gadc_thermal_get_temp(void *data, int *temp) return 0; } -static const struct thermal_zone_of_device_ops gadc_thermal_ops = { +static const struct thermal_zone_device_ops gadc_thermal_ops = { .get_temp = gadc_thermal_get_temp, }; @@ -143,8 +143,8 @@ static int gadc_thermal_probe(struct platform_device *pdev) gti->dev = &pdev->dev; platform_set_drvdata(pdev, gti); - gti->tz_dev = devm_thermal_zone_of_sensor_register(&pdev->dev, 0, gti, - &gadc_thermal_ops); + gti->tz_dev = devm_thermal_of_zone_register(&pdev->dev, 0, gti, + &gadc_thermal_ops); if (IS_ERR(gti->tz_dev)) { ret = PTR_ERR(gti->tz_dev); if (ret != -EPROBE_DEFER) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 50d50cec7774..7e669b60a065 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -295,27 +295,14 @@ static void thermal_zone_device_set_polling(struct thermal_zone_device *tz, cancel_delayed_work(&tz->poll_queue); } -static inline bool should_stop_polling(struct thermal_zone_device *tz) -{ - return !thermal_zone_device_is_enabled(tz); -} - static void monitor_thermal_zone(struct thermal_zone_device *tz) { - bool stop; - - stop = should_stop_polling(tz); - - mutex_lock(&tz->lock); - - if (!stop && tz->passive) + if (tz->mode != THERMAL_DEVICE_ENABLED) + thermal_zone_device_set_polling(tz, 0); + else if (tz->passive) thermal_zone_device_set_polling(tz, tz->passive_delay_jiffies); - else if (!stop && tz->polling_delay_jiffies) + else if (tz->polling_delay_jiffies) thermal_zone_device_set_polling(tz, tz->polling_delay_jiffies); - else - thermal_zone_device_set_polling(tz, 0); - - mutex_unlock(&tz->lock); } static void handle_non_critical_trips(struct thermal_zone_device *tz, int trip) @@ -383,18 +370,13 @@ static void handle_thermal_trip(struct thermal_zone_device *tz, int trip) handle_critical_trips(tz, trip, trip_temp, type); else handle_non_critical_trips(tz, trip); - /* - * Alright, we handled this trip successfully. - * So, start monitoring again. - */ - monitor_thermal_zone(tz); } static void update_temperature(struct thermal_zone_device *tz) { int temp, ret; - ret = thermal_zone_get_temp(tz, &temp); + ret = __thermal_zone_get_temp(tz, &temp); if (ret) { if (ret != -EAGAIN) dev_warn(&tz->device, @@ -403,10 +385,8 @@ static void update_temperature(struct thermal_zone_device *tz) return; } - mutex_lock(&tz->lock); tz->last_temperature = tz->temperature; tz->temperature = temp; - mutex_unlock(&tz->lock); trace_thermal_temperature(tz); @@ -469,15 +449,9 @@ EXPORT_SYMBOL_GPL(thermal_zone_device_disable); int thermal_zone_device_is_enabled(struct thermal_zone_device *tz) { - enum thermal_device_mode mode; - - mutex_lock(&tz->lock); - - mode = tz->mode; + lockdep_assert_held(&tz->lock); - mutex_unlock(&tz->lock); - - return mode == THERMAL_DEVICE_ENABLED; + return tz->mode == THERMAL_DEVICE_ENABLED; } void thermal_zone_device_update(struct thermal_zone_device *tz, @@ -485,9 +459,6 @@ void thermal_zone_device_update(struct thermal_zone_device *tz, { int count; - if (should_stop_polling(tz)) - return; - if (atomic_read(&in_suspend)) return; @@ -495,14 +466,23 @@ void thermal_zone_device_update(struct thermal_zone_device *tz, "'get_temp' ops set\n", __func__)) return; + mutex_lock(&tz->lock); + + if (!thermal_zone_device_is_enabled(tz)) + goto out; + update_temperature(tz); - thermal_zone_set_trips(tz); + __thermal_zone_set_trips(tz); tz->notify_event = event; for (count = 0; count < tz->num_trips; count++) handle_thermal_trip(tz, count); + + monitor_thermal_zone(tz); +out: + mutex_unlock(&tz->lock); } EXPORT_SYMBOL_GPL(thermal_zone_device_update); @@ -1212,7 +1192,20 @@ thermal_zone_device_register_with_trips(const char *type, struct thermal_trip *t return ERR_PTR(-EINVAL); } - if (num_trips > THERMAL_MAX_TRIPS || num_trips < 0 || mask >> num_trips) { + /* + * Max trip count can't exceed 31 as the "mask >> num_trips" condition. + * For example, shifting by 32 will result in compiler warning: + * warning: right shift count >= width of type [-Wshift-count- overflow] + * + * Also "mask >> num_trips" will always be true with 32 bit shift. + * E.g. mask = 0x80000000 for trip id 31 to be RW. Then + * mask >> 32 = 0x80000000 + * This will result in failure for the below condition. + * + * Check will be true when the bit 31 of the mask is set. + * 32 bit shift will cause overflow of 4 byte integer. + */ + if (num_trips > (BITS_PER_TYPE(int) - 1) || num_trips < 0 || mask >> num_trips) { pr_err("Incorrect number of thermal trips\n"); return ERR_PTR(-EINVAL); } @@ -1239,7 +1232,7 @@ thermal_zone_device_register_with_trips(const char *type, struct thermal_trip *t } tz->id = id; - strlcpy(tz->type, type, sizeof(tz->type)); + strscpy(tz->type, type, sizeof(tz->type)); result = dev_set_name(&tz->device, "thermal_zone%d", tz->id); if (result) @@ -1458,9 +1451,6 @@ static int thermal_pm_notify(struct notifier_block *nb, case PM_POST_SUSPEND: atomic_set(&in_suspend, 0); list_for_each_entry(tz, &thermal_tz_list, node) { - if (!thermal_zone_device_is_enabled(tz)) - continue; - thermal_zone_device_init(tz); thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED); @@ -1492,10 +1482,6 @@ static int __init thermal_init(void) if (result) goto unregister_governors; - result = of_parse_thermal_zones(); - if (result) - goto unregister_class; - result = register_pm_notifier(&thermal_pm_nb); if (result) pr_warn("Thermal: Can not register suspend notifier, return %d\n", @@ -1503,8 +1489,6 @@ static int __init thermal_init(void) return 0; -unregister_class: - class_unregister(&thermal_class); unregister_governors: thermal_unregister_governors(); error: diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h index c991bb290512..1571917bd3c8 100644 --- a/drivers/thermal/thermal_core.h +++ b/drivers/thermal/thermal_core.h @@ -112,6 +112,8 @@ int thermal_build_list_of_policies(char *buf); /* Helpers */ void thermal_zone_set_trips(struct thermal_zone_device *tz); +void __thermal_zone_set_trips(struct thermal_zone_device *tz); +int __thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp); /* sysfs I/F */ int thermal_zone_create_device_groups(struct thermal_zone_device *, int); @@ -135,13 +137,11 @@ thermal_cooling_device_stats_update(struct thermal_cooling_device *cdev, /* device tree support */ #ifdef CONFIG_THERMAL_OF -int of_parse_thermal_zones(void); int of_thermal_get_ntrips(struct thermal_zone_device *); bool of_thermal_is_trip_valid(struct thermal_zone_device *, int); const struct thermal_trip * of_thermal_get_trip_points(struct thermal_zone_device *); #else -static inline int of_parse_thermal_zones(void) { return 0; } static inline int of_thermal_get_ntrips(struct thermal_zone_device *tz) { return 0; diff --git a/drivers/thermal/thermal_helpers.c b/drivers/thermal/thermal_helpers.c index 690890f054a3..c65cdce8f856 100644 --- a/drivers/thermal/thermal_helpers.c +++ b/drivers/thermal/thermal_helpers.c @@ -64,27 +64,17 @@ get_thermal_instance(struct thermal_zone_device *tz, } EXPORT_SYMBOL(get_thermal_instance); -/** - * thermal_zone_get_temp() - returns the temperature of a thermal zone - * @tz: a valid pointer to a struct thermal_zone_device - * @temp: a valid pointer to where to store the resulting temperature. - * - * When a valid thermal zone reference is passed, it will fetch its - * temperature and fill @temp. - * - * Return: On success returns 0, an error code otherwise - */ -int thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp) +int __thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp) { int ret = -EINVAL; int count; int crit_temp = INT_MAX; enum thermal_trip_type type; - if (!tz || IS_ERR(tz) || !tz->ops->get_temp) - goto exit; + lockdep_assert_held(&tz->lock); - mutex_lock(&tz->lock); + if (!tz || IS_ERR(tz) || !tz->ops->get_temp) + return -EINVAL; ret = tz->ops->get_temp(tz, temp); @@ -107,35 +97,42 @@ int thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp) *temp = tz->emul_temperature; } - mutex_unlock(&tz->lock); -exit: return ret; } -EXPORT_SYMBOL_GPL(thermal_zone_get_temp); /** - * thermal_zone_set_trips - Computes the next trip points for the driver - * @tz: a pointer to a thermal zone device structure + * thermal_zone_get_temp() - returns the temperature of a thermal zone + * @tz: a valid pointer to a struct thermal_zone_device + * @temp: a valid pointer to where to store the resulting temperature. * - * The function computes the next temperature boundaries by browsing - * the trip points. The result is the closer low and high trip points - * to the current temperature. These values are passed to the backend - * driver to let it set its own notification mechanism (usually an - * interrupt). + * When a valid thermal zone reference is passed, it will fetch its + * temperature and fill @temp. * - * It does not return a value + * Return: On success returns 0, an error code otherwise */ -void thermal_zone_set_trips(struct thermal_zone_device *tz) +int thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp) +{ + int ret; + + mutex_lock(&tz->lock); + ret = __thermal_zone_get_temp(tz, temp); + mutex_unlock(&tz->lock); + + return ret; +} +EXPORT_SYMBOL_GPL(thermal_zone_get_temp); + +void __thermal_zone_set_trips(struct thermal_zone_device *tz) { int low = -INT_MAX; int high = INT_MAX; int trip_temp, hysteresis; int i, ret; - mutex_lock(&tz->lock); + lockdep_assert_held(&tz->lock); if (!tz->ops->set_trips || !tz->ops->get_trip_hyst) - goto exit; + return; for (i = 0; i < tz->num_trips; i++) { int trip_low; @@ -154,7 +151,7 @@ void thermal_zone_set_trips(struct thermal_zone_device *tz) /* No need to change trip points */ if (tz->prev_low_trip == low && tz->prev_high_trip == high) - goto exit; + return; tz->prev_low_trip = low; tz->prev_high_trip = high; @@ -169,8 +166,24 @@ void thermal_zone_set_trips(struct thermal_zone_device *tz) ret = tz->ops->set_trips(tz, low, high); if (ret) dev_err(&tz->device, "Failed to set trips: %d\n", ret); +} -exit: +/** + * thermal_zone_set_trips - Computes the next trip points for the driver + * @tz: a pointer to a thermal zone device structure + * + * The function computes the next temperature boundaries by browsing + * the trip points. The result is the closer low and high trip points + * to the current temperature. These values are passed to the backend + * driver to let it set its own notification mechanism (usually an + * interrupt). + * + * It does not return a value + */ +void thermal_zone_set_trips(struct thermal_zone_device *tz) +{ + mutex_lock(&tz->lock); + __thermal_zone_set_trips(tz); mutex_unlock(&tz->lock); } diff --git a/drivers/thermal/thermal_hwmon.c b/drivers/thermal/thermal_hwmon.c index 09e49ec8b6f4..f53f4ceb6a5d 100644 --- a/drivers/thermal/thermal_hwmon.c +++ b/drivers/thermal/thermal_hwmon.c @@ -147,7 +147,7 @@ int thermal_add_hwmon_sysfs(struct thermal_zone_device *tz) return -ENOMEM; INIT_LIST_HEAD(&hwmon->tz_list); - strlcpy(hwmon->type, tz->type, THERMAL_NAME_LENGTH); + strscpy(hwmon->type, tz->type, THERMAL_NAME_LENGTH); strreplace(hwmon->type, '-', '_'); hwmon->device = hwmon_device_register_for_thermal(&tz->device, hwmon->type, hwmon); diff --git a/drivers/thermal/thermal_mmio.c b/drivers/thermal/thermal_mmio.c index 360b0dfdc3b0..1bf1a16533da 100644 --- a/drivers/thermal/thermal_mmio.c +++ b/drivers/thermal/thermal_mmio.c @@ -20,11 +20,10 @@ static u32 thermal_mmio_readb(void __iomem *mmio_base) return readb(mmio_base); } -static int thermal_mmio_get_temperature(void *private, int *temp) +static int thermal_mmio_get_temperature(struct thermal_zone_device *tz, int *temp) { int t; - struct thermal_mmio *sensor = - (struct thermal_mmio *)private; + struct thermal_mmio *sensor = tz->devdata; t = sensor->read_mmio(sensor->mmio_base) & sensor->mask; t *= sensor->factor; @@ -34,7 +33,7 @@ static int thermal_mmio_get_temperature(void *private, int *temp) return 0; } -static const struct thermal_zone_of_device_ops thermal_mmio_ops = { +static const struct thermal_zone_device_ops thermal_mmio_ops = { .get_temp = thermal_mmio_get_temperature, }; @@ -68,10 +67,10 @@ static int thermal_mmio_probe(struct platform_device *pdev) } } - thermal_zone = devm_thermal_zone_of_sensor_register(&pdev->dev, - 0, - sensor, - &thermal_mmio_ops); + thermal_zone = devm_thermal_of_zone_register(&pdev->dev, + 0, + sensor, + &thermal_mmio_ops); if (IS_ERR(thermal_zone)) { dev_err(&pdev->dev, "failed to register sensor (%ld)\n", @@ -79,7 +78,7 @@ static int thermal_mmio_probe(struct platform_device *pdev) return PTR_ERR(thermal_zone); } - thermal_mmio_get_temperature(sensor, &temperature); + thermal_mmio_get_temperature(thermal_zone, &temperature); dev_info(&pdev->dev, "thermal mmio sensor %s registered, current temperature: %d\n", pdev->name, temperature); diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c index 3aa9e2024a2f..fd2fb84bf246 100644 --- a/drivers/thermal/thermal_of.c +++ b/drivers/thermal/thermal_of.c @@ -19,93 +19,6 @@ #include "thermal_core.h" -/*** Private data structures to represent thermal device tree data ***/ - -/** - * struct __thermal_cooling_bind_param - a cooling device for a trip point - * @cooling_device: a pointer to identify the referred cooling device - * @min: minimum cooling state used at this trip point - * @max: maximum cooling state used at this trip point - */ - -struct __thermal_cooling_bind_param { - struct device_node *cooling_device; - unsigned long min; - unsigned long max; -}; - -/** - * struct __thermal_bind_params - a match between trip and cooling device - * @tcbp: a pointer to an array of cooling devices - * @count: number of elements in array - * @trip_id: the trip point index - * @usage: the percentage (from 0 to 100) of cooling contribution - */ - -struct __thermal_bind_params { - struct __thermal_cooling_bind_param *tcbp; - unsigned int count; - unsigned int trip_id; - unsigned int usage; -}; - -/** - * struct __thermal_zone - internal representation of a thermal zone - * @passive_delay: polling interval while passive cooling is activated - * @polling_delay: zone polling interval - * @slope: slope of the temperature adjustment curve - * @offset: offset of the temperature adjustment curve - * @ntrips: number of trip points - * @trips: an array of trip points (0..ntrips - 1) - * @num_tbps: number of thermal bind params - * @tbps: an array of thermal bind params (0..num_tbps - 1) - * @sensor_data: sensor private data used while reading temperature and trend - * @ops: set of callbacks to handle the thermal zone based on DT - */ - -struct __thermal_zone { - int passive_delay; - int polling_delay; - int slope; - int offset; - - /* trip data */ - int ntrips; - struct thermal_trip *trips; - - /* cooling binding data */ - int num_tbps; - struct __thermal_bind_params *tbps; - - /* sensor interface */ - void *sensor_data; - const struct thermal_zone_of_device_ops *ops; -}; - -/*** DT thermal zone device callbacks ***/ - -static int of_thermal_get_temp(struct thermal_zone_device *tz, - int *temp) -{ - struct __thermal_zone *data = tz->devdata; - - if (!data->ops || !data->ops->get_temp) - return -EINVAL; - - return data->ops->get_temp(data->sensor_data, temp); -} - -static int of_thermal_set_trips(struct thermal_zone_device *tz, - int low, int high) -{ - struct __thermal_zone *data = tz->devdata; - - if (!data->ops || !data->ops->set_trips) - return -EINVAL; - - return data->ops->set_trips(data->sensor_data, low, high); -} - /** * of_thermal_get_ntrips - function to export number of available trip * points. @@ -158,114 +71,6 @@ of_thermal_get_trip_points(struct thermal_zone_device *tz) } EXPORT_SYMBOL_GPL(of_thermal_get_trip_points); -/** - * of_thermal_set_emul_temp - function to set emulated temperature - * - * @tz: pointer to a thermal zone - * @temp: temperature to set - * - * This function gives the ability to set emulated value of temperature, - * which is handy for debugging - * - * Return: zero on success, error code otherwise - */ -static int of_thermal_set_emul_temp(struct thermal_zone_device *tz, - int temp) -{ - struct __thermal_zone *data = tz->devdata; - - if (!data->ops || !data->ops->set_emul_temp) - return -EINVAL; - - return data->ops->set_emul_temp(data->sensor_data, temp); -} - -static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip, - enum thermal_trend *trend) -{ - struct __thermal_zone *data = tz->devdata; - - if (!data->ops || !data->ops->get_trend) - return -EINVAL; - - return data->ops->get_trend(data->sensor_data, trip, trend); -} - -static int of_thermal_change_mode(struct thermal_zone_device *tz, - enum thermal_device_mode mode) -{ - struct __thermal_zone *data = tz->devdata; - - return data->ops->change_mode(data->sensor_data, mode); -} - -static int of_thermal_bind(struct thermal_zone_device *thermal, - struct thermal_cooling_device *cdev) -{ - struct __thermal_zone *data = thermal->devdata; - struct __thermal_bind_params *tbp; - struct __thermal_cooling_bind_param *tcbp; - int i, j; - - if (!data || IS_ERR(data)) - return -ENODEV; - - /* find where to bind */ - for (i = 0; i < data->num_tbps; i++) { - tbp = data->tbps + i; - - for (j = 0; j < tbp->count; j++) { - tcbp = tbp->tcbp + j; - - if (tcbp->cooling_device == cdev->np) { - int ret; - - ret = thermal_zone_bind_cooling_device(thermal, - tbp->trip_id, cdev, - tcbp->max, - tcbp->min, - tbp->usage); - if (ret) - return ret; - } - } - } - - return 0; -} - -static int of_thermal_unbind(struct thermal_zone_device *thermal, - struct thermal_cooling_device *cdev) -{ - struct __thermal_zone *data = thermal->devdata; - struct __thermal_bind_params *tbp; - struct __thermal_cooling_bind_param *tcbp; - int i, j; - - if (!data || IS_ERR(data)) - return -ENODEV; - - /* find where to unbind */ - for (i = 0; i < data->num_tbps; i++) { - tbp = data->tbps + i; - - for (j = 0; j < tbp->count; j++) { - tcbp = tbp->tcbp + j; - - if (tcbp->cooling_device == cdev->np) { - int ret; - - ret = thermal_zone_unbind_cooling_device(thermal, - tbp->trip_id, cdev); - if (ret) - return ret; - } - } - } - - return 0; -} - static int of_thermal_get_trip_type(struct thermal_zone_device *tz, int trip, enum thermal_trip_type *type) { @@ -288,28 +93,6 @@ static int of_thermal_get_trip_temp(struct thermal_zone_device *tz, int trip, return 0; } -static int of_thermal_set_trip_temp(struct thermal_zone_device *tz, int trip, - int temp) -{ - struct __thermal_zone *data = tz->devdata; - - if (trip >= tz->num_trips || trip < 0) - return -EDOM; - - if (data->ops && data->ops->set_trip_temp) { - int ret; - - ret = data->ops->set_trip_temp(data->sensor_data, trip, temp); - if (ret) - return ret; - } - - /* thermal framework should take care of data->mask & (1 << trip) */ - tz->trips[trip].temperature = temp; - - return 0; -} - static int of_thermal_get_trip_hyst(struct thermal_zone_device *tz, int trip, int *hyst) { @@ -347,62 +130,6 @@ static int of_thermal_get_crit_temp(struct thermal_zone_device *tz, return -EINVAL; } -static struct thermal_zone_device_ops of_thermal_ops = { - .get_trip_type = of_thermal_get_trip_type, - .get_trip_temp = of_thermal_get_trip_temp, - .set_trip_temp = of_thermal_set_trip_temp, - .get_trip_hyst = of_thermal_get_trip_hyst, - .set_trip_hyst = of_thermal_set_trip_hyst, - .get_crit_temp = of_thermal_get_crit_temp, - - .bind = of_thermal_bind, - .unbind = of_thermal_unbind, -}; - -/*** sensor API ***/ - -static struct thermal_zone_device * -thermal_zone_of_add_sensor(struct device_node *zone, - struct device_node *sensor, void *data, - const struct thermal_zone_of_device_ops *ops) -{ - struct thermal_zone_device *tzd; - struct __thermal_zone *tz; - - tzd = thermal_zone_get_zone_by_name(zone->name); - if (IS_ERR(tzd)) - return ERR_PTR(-EPROBE_DEFER); - - tz = tzd->devdata; - - if (!ops) - return ERR_PTR(-EINVAL); - - mutex_lock(&tzd->lock); - tz->ops = ops; - tz->sensor_data = data; - - tzd->ops->get_temp = of_thermal_get_temp; - tzd->ops->get_trend = of_thermal_get_trend; - - /* - * The thermal zone core will calculate the window if they have set the - * optional set_trips pointer. - */ - if (ops->set_trips) - tzd->ops->set_trips = of_thermal_set_trips; - - if (ops->set_emul_temp) - tzd->ops->set_emul_temp = of_thermal_set_emul_temp; - - if (ops->change_mode) - tzd->ops->change_mode = of_thermal_change_mode; - - mutex_unlock(&tzd->lock); - - return tzd; -} - /** * thermal_zone_of_get_sensor_id - get sensor ID from a DT thermal zone * @tz_np: a valid thermal zone device node. @@ -447,207 +174,6 @@ int thermal_zone_of_get_sensor_id(struct device_node *tz_np, } EXPORT_SYMBOL_GPL(thermal_zone_of_get_sensor_id); -/** - * thermal_zone_of_sensor_register - registers a sensor to a DT thermal zone - * @dev: a valid struct device pointer of a sensor device. Must contain - * a valid .of_node, for the sensor node. - * @sensor_id: a sensor identifier, in case the sensor IP has more - * than one sensors - * @data: a private pointer (owned by the caller) that will be passed - * back, when a temperature reading is needed. - * @ops: struct thermal_zone_of_device_ops *. Must contain at least .get_temp. - * - * This function will search the list of thermal zones described in device - * tree and look for the zone that refer to the sensor device pointed by - * @dev->of_node as temperature providers. For the zone pointing to the - * sensor node, the sensor will be added to the DT thermal zone device. - * - * The thermal zone temperature is provided by the @get_temp function - * pointer. When called, it will have the private pointer @data back. - * - * The thermal zone temperature trend is provided by the @get_trend function - * pointer. When called, it will have the private pointer @data back. - * - * TODO: - * 01 - This function must enqueue the new sensor instead of using - * it as the only source of temperature values. - * - * 02 - There must be a way to match the sensor with all thermal zones - * that refer to it. - * - * Return: On success returns a valid struct thermal_zone_device, - * otherwise, it returns a corresponding ERR_PTR(). Caller must - * check the return value with help of IS_ERR() helper. - */ -struct thermal_zone_device * -thermal_zone_of_sensor_register(struct device *dev, int sensor_id, void *data, - const struct thermal_zone_of_device_ops *ops) -{ - struct device_node *np, *child, *sensor_np; - struct thermal_zone_device *tzd = ERR_PTR(-ENODEV); - - np = of_find_node_by_name(NULL, "thermal-zones"); - if (!np) - return ERR_PTR(-ENODEV); - - if (!dev || !dev->of_node) { - of_node_put(np); - return ERR_PTR(-ENODEV); - } - - sensor_np = of_node_get(dev->of_node); - - for_each_available_child_of_node(np, child) { - int ret, id; - - /* For now, thermal framework supports only 1 sensor per zone */ - ret = thermal_zone_of_get_sensor_id(child, sensor_np, &id); - if (ret) - continue; - - if (id == sensor_id) { - tzd = thermal_zone_of_add_sensor(child, sensor_np, - data, ops); - if (!IS_ERR(tzd)) - thermal_zone_device_enable(tzd); - - of_node_put(child); - goto exit; - } - } -exit: - of_node_put(sensor_np); - of_node_put(np); - - return tzd; -} -EXPORT_SYMBOL_GPL(thermal_zone_of_sensor_register); - -/** - * thermal_zone_of_sensor_unregister - unregisters a sensor from a DT thermal zone - * @dev: a valid struct device pointer of a sensor device. Must contain - * a valid .of_node, for the sensor node. - * @tzd: a pointer to struct thermal_zone_device where the sensor is registered. - * - * This function removes the sensor callbacks and private data from the - * thermal zone device registered with thermal_zone_of_sensor_register() - * API. It will also silent the zone by remove the .get_temp() and .get_trend() - * thermal zone device callbacks. - * - * TODO: When the support to several sensors per zone is added, this - * function must search the sensor list based on @dev parameter. - * - */ -void thermal_zone_of_sensor_unregister(struct device *dev, - struct thermal_zone_device *tzd) -{ - struct __thermal_zone *tz; - - if (!dev || !tzd || !tzd->devdata) - return; - - tz = tzd->devdata; - - /* no __thermal_zone, nothing to be done */ - if (!tz) - return; - - /* stop temperature polling */ - thermal_zone_device_disable(tzd); - - mutex_lock(&tzd->lock); - tzd->ops->get_temp = NULL; - tzd->ops->get_trend = NULL; - tzd->ops->set_emul_temp = NULL; - tzd->ops->change_mode = NULL; - - tz->ops = NULL; - tz->sensor_data = NULL; - mutex_unlock(&tzd->lock); -} -EXPORT_SYMBOL_GPL(thermal_zone_of_sensor_unregister); - -static void devm_thermal_zone_of_sensor_release(struct device *dev, void *res) -{ - thermal_zone_of_sensor_unregister(dev, - *(struct thermal_zone_device **)res); -} - -static int devm_thermal_zone_of_sensor_match(struct device *dev, void *res, - void *data) -{ - struct thermal_zone_device **r = res; - - if (WARN_ON(!r || !*r)) - return 0; - - return *r == data; -} - -/** - * devm_thermal_zone_of_sensor_register - Resource managed version of - * thermal_zone_of_sensor_register() - * @dev: a valid struct device pointer of a sensor device. Must contain - * a valid .of_node, for the sensor node. - * @sensor_id: a sensor identifier, in case the sensor IP has more - * than one sensors - * @data: a private pointer (owned by the caller) that will be passed - * back, when a temperature reading is needed. - * @ops: struct thermal_zone_of_device_ops *. Must contain at least .get_temp. - * - * Refer thermal_zone_of_sensor_register() for more details. - * - * Return: On success returns a valid struct thermal_zone_device, - * otherwise, it returns a corresponding ERR_PTR(). Caller must - * check the return value with help of IS_ERR() helper. - * Registered thermal_zone_device device will automatically be - * released when device is unbounded. - */ -struct thermal_zone_device *devm_thermal_zone_of_sensor_register( - struct device *dev, int sensor_id, - void *data, const struct thermal_zone_of_device_ops *ops) -{ - struct thermal_zone_device **ptr, *tzd; - - ptr = devres_alloc(devm_thermal_zone_of_sensor_release, sizeof(*ptr), - GFP_KERNEL); - if (!ptr) - return ERR_PTR(-ENOMEM); - - tzd = thermal_zone_of_sensor_register(dev, sensor_id, data, ops); - if (IS_ERR(tzd)) { - devres_free(ptr); - return tzd; - } - - *ptr = tzd; - devres_add(dev, ptr); - - return tzd; -} -EXPORT_SYMBOL_GPL(devm_thermal_zone_of_sensor_register); - -/** - * devm_thermal_zone_of_sensor_unregister - Resource managed version of - * thermal_zone_of_sensor_unregister(). - * @dev: Device for which resource was allocated. - * @tzd: a pointer to struct thermal_zone_device where the sensor is registered. - * - * This function removes the sensor callbacks and private data from the - * thermal zone device registered with devm_thermal_zone_of_sensor_register() - * API. It will also silent the zone by remove the .get_temp() and .get_trend() - * thermal zone device callbacks. - * Normally this function will not need to be called and the resource - * management code will ensure that the resource is freed. - */ -void devm_thermal_zone_of_sensor_unregister(struct device *dev, - struct thermal_zone_device *tzd) -{ - WARN_ON(devres_release(dev, devm_thermal_zone_of_sensor_release, - devm_thermal_zone_of_sensor_match, tzd)); -} -EXPORT_SYMBOL_GPL(devm_thermal_zone_of_sensor_unregister); - /*** functions parsing device tree nodes ***/ static int of_find_trip_id(struct device_node *np, struct device_node *trip) @@ -679,98 +205,6 @@ out: return i; } -/** - * thermal_of_populate_bind_params - parse and fill cooling map data - * @np: DT node containing a cooling-map node - * @__tbp: data structure to be filled with cooling map info - * @trips: array of thermal zone trip points - * @ntrips: number of trip points inside trips. - * - * This function parses a cooling-map type of node represented by - * @np parameter and fills the read data into @__tbp data structure. - * It needs the already parsed array of trip points of the thermal zone - * in consideration. - * - * Return: 0 on success, proper error code otherwise - */ -static int thermal_of_populate_bind_params(struct device_node *tz_np, - struct device_node *np, - struct __thermal_bind_params *__tbp) -{ - struct of_phandle_args cooling_spec; - struct __thermal_cooling_bind_param *__tcbp; - struct device_node *trip; - int ret, i, count; - int trip_id; - u32 prop; - - /* Default weight. Usage is optional */ - __tbp->usage = THERMAL_WEIGHT_DEFAULT; - ret = of_property_read_u32(np, "contribution", &prop); - if (ret == 0) - __tbp->usage = prop; - - trip = of_parse_phandle(np, "trip", 0); - if (!trip) { - pr_err("missing trip property\n"); - return -ENODEV; - } - - trip_id = of_find_trip_id(tz_np, trip); - if (trip_id < 0) { - ret = trip_id; - goto end; - } - - __tbp->trip_id = trip_id; - - count = of_count_phandle_with_args(np, "cooling-device", - "#cooling-cells"); - if (count <= 0) { - pr_err("Add a cooling_device property with at least one device\n"); - ret = -ENOENT; - goto end; - } - - __tcbp = kcalloc(count, sizeof(*__tcbp), GFP_KERNEL); - if (!__tcbp) { - ret = -ENOMEM; - goto end; - } - - for (i = 0; i < count; i++) { - ret = of_parse_phandle_with_args(np, "cooling-device", - "#cooling-cells", i, &cooling_spec); - if (ret < 0) { - pr_err("Invalid cooling-device entry\n"); - goto free_tcbp; - } - - __tcbp[i].cooling_device = cooling_spec.np; - - if (cooling_spec.args_count >= 2) { /* at least min and max */ - __tcbp[i].min = cooling_spec.args[0]; - __tcbp[i].max = cooling_spec.args[1]; - } else { - pr_err("wrong reference to cooling device, missing limits\n"); - } - } - - __tbp->tcbp = __tcbp; - __tbp->count = count; - - goto end; - -free_tcbp: - for (i = i - 1; i >= 0; i--) - of_node_put(__tcbp[i].cooling_device); - kfree(__tcbp); -end: - of_node_put(trip); - - return ret; -} - /* * It maps 'enum thermal_trip_type' found in include/linux/thermal.h * into the device tree binding of 'trip', property type. @@ -811,16 +245,6 @@ static int thermal_of_get_trip_type(struct device_node *np, return -ENODEV; } -/** - * thermal_of_populate_trip - parse and fill one trip point data - * @np: DT node containing a trip point node - * @trip: trip point data structure to be filled up - * - * This function parses a trip point type of node represented by - * @np parameter and fills the read data into @trip data structure. - * - * Return: 0 on success, proper error code otherwise - */ static int thermal_of_populate_trip(struct device_node *np, struct thermal_trip *trip) { @@ -897,258 +321,458 @@ out_of_node_put: return ERR_PTR(ret); } -/** - * thermal_of_build_thermal_zone - parse and fill one thermal zone data - * @np: DT node containing a thermal zone node - * - * This function parses a thermal zone type of node represented by - * @np parameter and fills the read data into a __thermal_zone data structure - * and return this pointer. - * - * TODO: Missing properties to parse: thermal-sensor-names - * - * Return: On success returns a valid struct __thermal_zone, - * otherwise, it returns a corresponding ERR_PTR(). Caller must - * check the return value with help of IS_ERR() helper. - */ -static struct __thermal_zone -__init *thermal_of_build_thermal_zone(struct device_node *np) +static struct device_node *of_thermal_zone_find(struct device_node *sensor, int id) { - struct device_node *child = NULL, *gchild; - struct __thermal_zone *tz; - int ret, i; - u32 prop, coef[2]; + struct device_node *np, *tz; + struct of_phandle_args sensor_specs; + np = of_find_node_by_name(NULL, "thermal-zones"); if (!np) { - pr_err("no thermal zone np\n"); - return ERR_PTR(-EINVAL); + pr_debug("No thermal zones description\n"); + return ERR_PTR(-ENODEV); } - tz = kzalloc(sizeof(*tz), GFP_KERNEL); - if (!tz) - return ERR_PTR(-ENOMEM); + /* + * Search for each thermal zone, a defined sensor + * corresponding to the one passed as parameter + */ + for_each_available_child_of_node(np, tz) { + + int count, i; + + count = of_count_phandle_with_args(tz, "thermal-sensors", + "#thermal-sensor-cells"); + if (count <= 0) { + pr_err("%pOFn: missing thermal sensor\n", tz); + tz = ERR_PTR(-EINVAL); + goto out; + } + + for (i = 0; i < count; i++) { + + int ret; + + ret = of_parse_phandle_with_args(tz, "thermal-sensors", + "#thermal-sensor-cells", + i, &sensor_specs); + if (ret < 0) { + pr_err("%pOFn: Failed to read thermal-sensors cells: %d\n", tz, ret); + tz = ERR_PTR(ret); + goto out; + } + + if ((sensor == sensor_specs.np) && id == (sensor_specs.args_count ? + sensor_specs.args[0] : 0)) { + pr_debug("sensor %pOFn id=%d belongs to %pOFn\n", sensor, id, tz); + goto out; + } + } + } + tz = ERR_PTR(-ENODEV); +out: + of_node_put(np); + return tz; +} + +static int thermal_of_monitor_init(struct device_node *np, int *delay, int *pdelay) +{ + int ret; - ret = of_property_read_u32(np, "polling-delay-passive", &prop); + ret = of_property_read_u32(np, "polling-delay-passive", pdelay); if (ret < 0) { pr_err("%pOFn: missing polling-delay-passive property\n", np); - goto free_tz; + return ret; } - tz->passive_delay = prop; - ret = of_property_read_u32(np, "polling-delay", &prop); + ret = of_property_read_u32(np, "polling-delay", delay); if (ret < 0) { pr_err("%pOFn: missing polling-delay property\n", np); - goto free_tz; + return ret; } - tz->polling_delay = prop; + + return 0; +} + +static struct thermal_zone_params *thermal_of_parameters_init(struct device_node *np) +{ + struct thermal_zone_params *tzp; + int coef[2]; + int ncoef = ARRAY_SIZE(coef); + int prop, ret; + + tzp = kzalloc(sizeof(*tzp), GFP_KERNEL); + if (!tzp) + return ERR_PTR(-ENOMEM); + + tzp->no_hwmon = true; + + if (!of_property_read_u32(np, "sustainable-power", &prop)) + tzp->sustainable_power = prop; /* - * REVIST: for now, the thermal framework supports only - * one sensor per thermal zone. Thus, we are considering - * only the first two values as slope and offset. + * For now, the thermal framework supports only one sensor per + * thermal zone. Thus, we are considering only the first two + * values as slope and offset. */ - ret = of_property_read_u32_array(np, "coefficients", coef, 2); - if (ret == 0) { - tz->slope = coef[0]; - tz->offset = coef[1]; - } else { - tz->slope = 1; - tz->offset = 0; + ret = of_property_read_u32_array(np, "coefficients", coef, ncoef); + if (ret) { + coef[0] = 1; + coef[1] = 0; + } + + tzp->slope = coef[0]; + tzp->offset = coef[1]; + + return tzp; +} + +static struct device_node *thermal_of_zone_get_by_name(struct thermal_zone_device *tz) +{ + struct device_node *np, *tz_np; + + np = of_find_node_by_name(NULL, "thermal-zones"); + if (!np) + return ERR_PTR(-ENODEV); + + tz_np = of_get_child_by_name(np, tz->type); + + of_node_put(np); + + if (!tz_np) + return ERR_PTR(-ENODEV); + + return tz_np; +} + +static int __thermal_of_unbind(struct device_node *map_np, int index, int trip_id, + struct thermal_zone_device *tz, struct thermal_cooling_device *cdev) +{ + struct of_phandle_args cooling_spec; + int ret; + + ret = of_parse_phandle_with_args(map_np, "cooling-device", "#cooling-cells", + index, &cooling_spec); + + of_node_put(cooling_spec.np); + + if (ret < 0) { + pr_err("Invalid cooling-device entry\n"); + return ret; } - tz->trips = thermal_of_trips_init(np, &tz->ntrips); - if (IS_ERR(tz->trips)) { - ret = PTR_ERR(tz->trips); - goto finish; + if (cooling_spec.args_count < 2) { + pr_err("wrong reference to cooling device, missing limits\n"); + return -EINVAL; } - /* cooling-maps */ - child = of_get_child_by_name(np, "cooling-maps"); + if (cooling_spec.np != cdev->np) + return 0; - /* cooling-maps not provided */ - if (!child) - goto finish; + ret = thermal_zone_unbind_cooling_device(tz, trip_id, cdev); + if (ret) + pr_err("Failed to unbind '%s' with '%s': %d\n", tz->type, cdev->type, ret); - tz->num_tbps = of_get_child_count(child); - if (tz->num_tbps == 0) - goto finish; + return ret; +} - tz->tbps = kcalloc(tz->num_tbps, sizeof(*tz->tbps), GFP_KERNEL); - if (!tz->tbps) { - ret = -ENOMEM; - goto free_trips; +static int __thermal_of_bind(struct device_node *map_np, int index, int trip_id, + struct thermal_zone_device *tz, struct thermal_cooling_device *cdev) +{ + struct of_phandle_args cooling_spec; + int ret, weight = THERMAL_WEIGHT_DEFAULT; + + of_property_read_u32(map_np, "contribution", &weight); + + ret = of_parse_phandle_with_args(map_np, "cooling-device", "#cooling-cells", + index, &cooling_spec); + + of_node_put(cooling_spec.np); + + if (ret < 0) { + pr_err("Invalid cooling-device entry\n"); + return ret; } - i = 0; - for_each_child_of_node(child, gchild) { - ret = thermal_of_populate_bind_params(np, gchild, &tz->tbps[i++]); - if (ret) { - of_node_put(gchild); - goto free_tbps; - } + if (cooling_spec.args_count < 2) { + pr_err("wrong reference to cooling device, missing limits\n"); + return -EINVAL; } -finish: - of_node_put(child); + if (cooling_spec.np != cdev->np) + return 0; - return tz; + ret = thermal_zone_bind_cooling_device(tz, trip_id, cdev, cooling_spec.args[1], + cooling_spec.args[0], + weight); + if (ret) + pr_err("Failed to bind '%s' with '%s': %d\n", tz->type, cdev->type, ret); -free_tbps: - for (i = i - 1; i >= 0; i--) { - struct __thermal_bind_params *tbp = tz->tbps + i; - int j; + return ret; +} - for (j = 0; j < tbp->count; j++) - of_node_put(tbp->tcbp[j].cooling_device); +static int thermal_of_for_each_cooling_device(struct device_node *tz_np, struct device_node *map_np, + struct thermal_zone_device *tz, struct thermal_cooling_device *cdev, + int (*action)(struct device_node *, int, int, + struct thermal_zone_device *, struct thermal_cooling_device *)) +{ + struct device_node *tr_np; + int count, i, trip_id; - kfree(tbp->tcbp); + tr_np = of_parse_phandle(map_np, "trip", 0); + if (!tr_np) + return -ENODEV; + + trip_id = of_find_trip_id(tz_np, tr_np); + if (trip_id < 0) + return trip_id; + + count = of_count_phandle_with_args(map_np, "cooling-device", "#cooling-cells"); + if (count <= 0) { + pr_err("Add a cooling_device property with at least one device\n"); + return -ENOENT; } - kfree(tz->tbps); -free_trips: - kfree(tz->trips); -free_tz: - kfree(tz); - of_node_put(child); + /* + * At this point, we don't want to bail out when there is an + * error, we will try to bind/unbind as many as possible + * cooling devices + */ + for (i = 0; i < count; i++) + action(map_np, i, trip_id, tz, cdev); - return ERR_PTR(ret); + return 0; } -static __init void of_thermal_free_zone(struct __thermal_zone *tz) +static int thermal_of_for_each_cooling_maps(struct thermal_zone_device *tz, + struct thermal_cooling_device *cdev, + int (*action)(struct device_node *, int, int, + struct thermal_zone_device *, struct thermal_cooling_device *)) { - struct __thermal_bind_params *tbp; - int i, j; + struct device_node *tz_np, *cm_np, *child; + int ret = 0; - for (i = 0; i < tz->num_tbps; i++) { - tbp = tz->tbps + i; + tz_np = thermal_of_zone_get_by_name(tz); + if (IS_ERR(tz_np)) { + pr_err("Failed to get node tz by name\n"); + return PTR_ERR(tz_np); + } - for (j = 0; j < tbp->count; j++) - of_node_put(tbp->tcbp[j].cooling_device); + cm_np = of_get_child_by_name(tz_np, "cooling-maps"); + if (!cm_np) + goto out; - kfree(tbp->tcbp); + for_each_child_of_node(cm_np, child) { + ret = thermal_of_for_each_cooling_device(tz_np, child, tz, cdev, action); + if (ret) + break; } - kfree(tz->tbps); - kfree(tz->trips); - kfree(tz); + of_node_put(cm_np); +out: + of_node_put(tz_np); + + return ret; +} + +static int thermal_of_bind(struct thermal_zone_device *tz, + struct thermal_cooling_device *cdev) +{ + return thermal_of_for_each_cooling_maps(tz, cdev, __thermal_of_bind); +} + +static int thermal_of_unbind(struct thermal_zone_device *tz, + struct thermal_cooling_device *cdev) +{ + return thermal_of_for_each_cooling_maps(tz, cdev, __thermal_of_unbind); } /** - * of_thermal_destroy_zones - remove all zones parsed and allocated resources + * thermal_of_zone_unregister - Cleanup the specific allocated ressources * - * Finds all zones parsed and added to the thermal framework and remove them - * from the system, together with their resources. + * This function disables the thermal zone and frees the different + * ressources allocated specific to the thermal OF. * + * @tz: a pointer to the thermal zone structure */ -static __init void of_thermal_destroy_zones(void) +void thermal_of_zone_unregister(struct thermal_zone_device *tz) { - struct device_node *np, *child; + struct thermal_trip *trips = tz->trips; + struct thermal_zone_params *tzp = tz->tzp; + struct thermal_zone_device_ops *ops = tz->ops; - np = of_find_node_by_name(NULL, "thermal-zones"); - if (!np) { - pr_debug("unable to find thermal zones\n"); - return; + thermal_zone_device_disable(tz); + thermal_zone_device_unregister(tz); + kfree(trips); + kfree(tzp); + kfree(ops); +} +EXPORT_SYMBOL_GPL(thermal_of_zone_unregister); + +/** + * thermal_of_zone_register - Register a thermal zone with device node + * sensor + * + * The thermal_of_zone_register() parses a device tree given a device + * node sensor and identifier. It searches for the thermal zone + * associated to the couple sensor/id and retrieves all the thermal + * zone properties and registers new thermal zone with those + * properties. + * + * @sensor: A device node pointer corresponding to the sensor in the device tree + * @id: An integer as sensor identifier + * @data: A private data to be stored in the thermal zone dedicated private area + * @ops: A set of thermal sensor ops + * + * Return: a valid thermal zone structure pointer on success. + * - EINVAL: if the device tree thermal description is malformed + * - ENOMEM: if one structure can not be allocated + * - Other negative errors are returned by the underlying called functions + */ +struct thermal_zone_device *thermal_of_zone_register(struct device_node *sensor, int id, void *data, + const struct thermal_zone_device_ops *ops) +{ + struct thermal_zone_device *tz; + struct thermal_trip *trips; + struct thermal_zone_params *tzp; + struct thermal_zone_device_ops *of_ops; + struct device_node *np; + int delay, pdelay; + int ntrips, mask; + int ret; + + of_ops = kmemdup(ops, sizeof(*ops), GFP_KERNEL); + if (!of_ops) + return ERR_PTR(-ENOMEM); + + np = of_thermal_zone_find(sensor, id); + if (IS_ERR(np)) { + if (PTR_ERR(np) != -ENODEV) + pr_err("Failed to find thermal zone for %pOFn id=%d\n", sensor, id); + return ERR_CAST(np); } - for_each_available_child_of_node(np, child) { - struct thermal_zone_device *zone; + trips = thermal_of_trips_init(np, &ntrips); + if (IS_ERR(trips)) { + pr_err("Failed to find trip points for %pOFn id=%d\n", sensor, id); + return ERR_CAST(trips); + } - zone = thermal_zone_get_zone_by_name(child->name); - if (IS_ERR(zone)) - continue; + ret = thermal_of_monitor_init(np, &delay, &pdelay); + if (ret) { + pr_err("Failed to initialize monitoring delays from %pOFn\n", np); + goto out_kfree_trips; + } - thermal_zone_device_unregister(zone); - kfree(zone->tzp); - kfree(zone->ops); - of_thermal_free_zone(zone->devdata); + tzp = thermal_of_parameters_init(np); + if (IS_ERR(tzp)) { + ret = PTR_ERR(tzp); + pr_err("Failed to initialize parameter from %pOFn: %d\n", np, ret); + goto out_kfree_trips; } - of_node_put(np); + + of_ops->get_trip_type = of_ops->get_trip_type ? : of_thermal_get_trip_type; + of_ops->get_trip_temp = of_ops->get_trip_temp ? : of_thermal_get_trip_temp; + of_ops->get_trip_hyst = of_ops->get_trip_hyst ? : of_thermal_get_trip_hyst; + of_ops->set_trip_hyst = of_ops->set_trip_hyst ? : of_thermal_set_trip_hyst; + of_ops->get_crit_temp = of_ops->get_crit_temp ? : of_thermal_get_crit_temp; + of_ops->bind = thermal_of_bind; + of_ops->unbind = thermal_of_unbind; + + mask = GENMASK_ULL((ntrips) - 1, 0); + + tz = thermal_zone_device_register_with_trips(np->name, trips, ntrips, + mask, data, of_ops, tzp, + pdelay, delay); + if (IS_ERR(tz)) { + ret = PTR_ERR(tz); + pr_err("Failed to register thermal zone %pOFn: %d\n", np, ret); + goto out_kfree_tzp; + } + + ret = thermal_zone_device_enable(tz); + if (ret) { + pr_err("Failed to enabled thermal zone '%s', id=%d: %d\n", + tz->type, tz->id, ret); + thermal_of_zone_unregister(tz); + return ERR_PTR(ret); + } + + return tz; + +out_kfree_tzp: + kfree(tzp); +out_kfree_trips: + kfree(trips); + + return ERR_PTR(ret); +} +EXPORT_SYMBOL_GPL(thermal_of_zone_register); + +static void devm_thermal_of_zone_release(struct device *dev, void *res) +{ + thermal_of_zone_unregister(*(struct thermal_zone_device **)res); +} + +static int devm_thermal_of_zone_match(struct device *dev, void *res, + void *data) +{ + struct thermal_zone_device **r = res; + + if (WARN_ON(!r || !*r)) + return 0; + + return *r == data; } /** - * of_parse_thermal_zones - parse device tree thermal data - * - * Initialization function that can be called by machine initialization - * code to parse thermal data and populate the thermal framework - * with hardware thermal zones info. This function only parses thermal zones. - * Cooling devices and sensor devices nodes are supposed to be parsed - * by their respective drivers. + * devm_thermal_of_zone_register - register a thermal tied with the sensor life cycle * - * Return: 0 on success, proper error code otherwise + * This function is the device version of the thermal_of_zone_register() function. * + * @dev: a device structure pointer to sensor to be tied with the thermal zone OF life cycle + * @sensor_id: the sensor identifier + * @data: a pointer to a private data to be stored in the thermal zone 'devdata' field + * @ops: a pointer to the ops structure associated with the sensor */ -int __init of_parse_thermal_zones(void) +struct thermal_zone_device *devm_thermal_of_zone_register(struct device *dev, int sensor_id, void *data, + const struct thermal_zone_device_ops *ops) { - struct device_node *np, *child; - struct __thermal_zone *tz; - struct thermal_zone_device_ops *ops; - - np = of_find_node_by_name(NULL, "thermal-zones"); - if (!np) { - pr_debug("unable to find thermal zones\n"); - return 0; /* Run successfully on systems without thermal DT */ - } - - for_each_available_child_of_node(np, child) { - struct thermal_zone_device *zone; - struct thermal_zone_params *tzp; - int i, mask = 0; - u32 prop; - - tz = thermal_of_build_thermal_zone(child); - if (IS_ERR(tz)) { - pr_err("failed to build thermal zone %pOFn: %ld\n", - child, - PTR_ERR(tz)); - continue; - } - - ops = kmemdup(&of_thermal_ops, sizeof(*ops), GFP_KERNEL); - if (!ops) - goto exit_free; + struct thermal_zone_device **ptr, *tzd; - tzp = kzalloc(sizeof(*tzp), GFP_KERNEL); - if (!tzp) { - kfree(ops); - goto exit_free; - } + ptr = devres_alloc(devm_thermal_of_zone_release, sizeof(*ptr), + GFP_KERNEL); + if (!ptr) + return ERR_PTR(-ENOMEM); - /* No hwmon because there might be hwmon drivers registering */ - tzp->no_hwmon = true; - - if (!of_property_read_u32(child, "sustainable-power", &prop)) - tzp->sustainable_power = prop; - - for (i = 0; i < tz->ntrips; i++) - mask |= 1 << i; - - /* these two are left for temperature drivers to use */ - tzp->slope = tz->slope; - tzp->offset = tz->offset; - - zone = thermal_zone_device_register_with_trips(child->name, tz->trips, tz->ntrips, - mask, tz, ops, tzp, tz->passive_delay, - tz->polling_delay); - if (IS_ERR(zone)) { - pr_err("Failed to build %pOFn zone %ld\n", child, - PTR_ERR(zone)); - kfree(tzp); - kfree(ops); - of_thermal_free_zone(tz); - /* attempting to build remaining zones still */ - } + tzd = thermal_of_zone_register(dev->of_node, sensor_id, data, ops); + if (IS_ERR(tzd)) { + devres_free(ptr); + return tzd; } - of_node_put(np); - return 0; - -exit_free: - of_node_put(child); - of_node_put(np); - of_thermal_free_zone(tz); + *ptr = tzd; + devres_add(dev, ptr); - /* no memory available, so free what we have built */ - of_thermal_destroy_zones(); + return tzd; +} +EXPORT_SYMBOL_GPL(devm_thermal_of_zone_register); - return -ENOMEM; +/** + * devm_thermal_of_zone_unregister - Resource managed version of + * thermal_of_zone_unregister(). + * @dev: Device for which which resource was allocated. + * @tz: a pointer to struct thermal_zone where the sensor is registered. + * + * This function removes the sensor callbacks and private data from the + * thermal zone device registered with devm_thermal_zone_of_sensor_register() + * API. It will also silent the zone by remove the .get_temp() and .get_trend() + * thermal zone device callbacks. + * Normally this function will not need to be called and the resource + * management code will ensure that the resource is freed. + */ +void devm_thermal_of_zone_unregister(struct device *dev, struct thermal_zone_device *tz) +{ + WARN_ON(devres_release(dev, devm_thermal_of_zone_release, + devm_thermal_of_zone_match, tz)); } +EXPORT_SYMBOL_GPL(devm_thermal_of_zone_unregister); diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c index 3a8d6e747c25..78c5841bdfae 100644 --- a/drivers/thermal/thermal_sysfs.c +++ b/drivers/thermal/thermal_sysfs.c @@ -49,7 +49,11 @@ static ssize_t mode_show(struct device *dev, struct device_attribute *attr, char *buf) { struct thermal_zone_device *tz = to_thermal_zone(dev); - int enabled = thermal_zone_device_is_enabled(tz); + int enabled; + + mutex_lock(&tz->lock); + enabled = thermal_zone_device_is_enabled(tz); + mutex_unlock(&tz->lock); return sprintf(buf, "%s\n", enabled ? "enabled" : "disabled"); } @@ -115,7 +119,7 @@ trip_point_temp_store(struct device *dev, struct device_attribute *attr, int temperature, hyst = 0; enum thermal_trip_type type; - if (!tz->ops->set_trip_temp) + if (!tz->ops->set_trip_temp && !tz->trips) return -EPERM; if (sscanf(attr->attr.name, "trip_point_%d_temp", &trip) != 1) @@ -128,6 +132,9 @@ trip_point_temp_store(struct device *dev, struct device_attribute *attr, if (ret) return ret; + if (tz->trips) + tz->trips[trip].temperature = temperature; + if (tz->ops->get_trip_hyst) { ret = tz->ops->get_trip_hyst(tz, trip, &hyst); if (ret) diff --git a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c index 703039d8b937..8a9055bd376e 100644 --- a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c +++ b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c @@ -65,10 +65,10 @@ static inline int ti_thermal_hotspot_temperature(int t, int s, int c) /* thermal zone ops */ /* Get temperature callback function for thermal zone */ -static inline int __ti_thermal_get_temp(void *devdata, int *temp) +static inline int __ti_thermal_get_temp(struct thermal_zone_device *tz, int *temp) { struct thermal_zone_device *pcb_tz = NULL; - struct ti_thermal_data *data = devdata; + struct ti_thermal_data *data = tz->devdata; struct ti_bandgap *bgp; const struct ti_temp_sensor *s; int ret, tmp, slope, constant; @@ -85,8 +85,8 @@ static inline int __ti_thermal_get_temp(void *devdata, int *temp) return ret; /* Default constants */ - slope = thermal_zone_get_slope(data->ti_thermal); - constant = thermal_zone_get_offset(data->ti_thermal); + slope = thermal_zone_get_slope(tz); + constant = thermal_zone_get_offset(tz); pcb_tz = data->pcb_tz; /* In case pcb zone is available, use the extrapolation rule with it */ @@ -107,9 +107,9 @@ static inline int __ti_thermal_get_temp(void *devdata, int *temp) return ret; } -static int __ti_thermal_get_trend(void *p, int trip, enum thermal_trend *trend) +static int __ti_thermal_get_trend(struct thermal_zone_device *tz, int trip, enum thermal_trend *trend) { - struct ti_thermal_data *data = p; + struct ti_thermal_data *data = tz->devdata; struct ti_bandgap *bgp; int id, tr, ret = 0; @@ -130,7 +130,7 @@ static int __ti_thermal_get_trend(void *p, int trip, enum thermal_trend *trend) return 0; } -static const struct thermal_zone_of_device_ops ti_of_thermal_ops = { +static const struct thermal_zone_device_ops ti_of_thermal_ops = { .get_temp = __ti_thermal_get_temp, .get_trend = __ti_thermal_get_trend, }; @@ -170,7 +170,7 @@ int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, return -EINVAL; /* in case this is specified by DT */ - data->ti_thermal = devm_thermal_zone_of_sensor_register(bgp->dev, id, + data->ti_thermal = devm_thermal_of_zone_register(bgp->dev, id, data, &ti_of_thermal_ops); if (IS_ERR(data->ti_thermal)) { dev_err(bgp->dev, "thermal zone device is NULL\n"); diff --git a/drivers/thermal/uniphier_thermal.c b/drivers/thermal/uniphier_thermal.c index 4cae5561a2a3..4111d99ef50e 100644 --- a/drivers/thermal/uniphier_thermal.c +++ b/drivers/thermal/uniphier_thermal.c @@ -187,9 +187,9 @@ static void uniphier_tm_disable_sensor(struct uniphier_tm_dev *tdev) usleep_range(1000, 2000); /* The spec note says at least 1ms */ } -static int uniphier_tm_get_temp(void *data, int *out_temp) +static int uniphier_tm_get_temp(struct thermal_zone_device *tz, int *out_temp) { - struct uniphier_tm_dev *tdev = data; + struct uniphier_tm_dev *tdev = tz->devdata; struct regmap *map = tdev->regmap; int ret; u32 temp; @@ -204,7 +204,7 @@ static int uniphier_tm_get_temp(void *data, int *out_temp) return 0; } -static const struct thermal_zone_of_device_ops uniphier_of_thermal_ops = { +static const struct thermal_zone_device_ops uniphier_of_thermal_ops = { .get_temp = uniphier_tm_get_temp, }; @@ -289,8 +289,8 @@ static int uniphier_tm_probe(struct platform_device *pdev) platform_set_drvdata(pdev, tdev); - tdev->tz_dev = devm_thermal_zone_of_sensor_register(dev, 0, tdev, - &uniphier_of_thermal_ops); + tdev->tz_dev = devm_thermal_of_zone_register(dev, 0, tdev, + &uniphier_of_thermal_ops); if (IS_ERR(tdev->tz_dev)) { dev_err(dev, "failed to register sensor device\n"); return PTR_ERR(tdev->tz_dev); |