diff options
Diffstat (limited to 'drivers/thermal')
23 files changed, 985 insertions, 1448 deletions
diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c index c1188ac053c9..2ccbc0788353 100644 --- a/drivers/thermal/imx_thermal.c +++ b/drivers/thermal/imx_thermal.c @@ -608,6 +608,7 @@ static int imx_thermal_suspend(struct device *dev) regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_MEASURE_TEMP); regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_POWER_DOWN); data->mode = THERMAL_DEVICE_DISABLED; + clk_disable_unprepare(data->thermal_clk); return 0; } @@ -617,6 +618,7 @@ static int imx_thermal_resume(struct device *dev) struct imx_thermal_data *data = dev_get_drvdata(dev); struct regmap *map = data->tempmon; + clk_prepare_enable(data->thermal_clk); /* Enabled thermal sensor after resume */ regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_POWER_DOWN); regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_MEASURE_TEMP); diff --git a/drivers/thermal/int340x_thermal/Makefile b/drivers/thermal/int340x_thermal/Makefile index d4413698a85f..ba77a34f659f 100644 --- a/drivers/thermal/int340x_thermal/Makefile +++ b/drivers/thermal/int340x_thermal/Makefile @@ -1,4 +1,5 @@ obj-$(CONFIG_INT340X_THERMAL) += int3400_thermal.o +obj-$(CONFIG_INT340X_THERMAL) += int340x_thermal_zone.o obj-$(CONFIG_INT340X_THERMAL) += int3402_thermal.o obj-$(CONFIG_INT340X_THERMAL) += int3403_thermal.o obj-$(CONFIG_INT340X_THERMAL) += processor_thermal_device.o diff --git a/drivers/thermal/int340x_thermal/acpi_thermal_rel.c b/drivers/thermal/int340x_thermal/acpi_thermal_rel.c index 231cabc16e16..2c2ec7666eb1 100644 --- a/drivers/thermal/int340x_thermal/acpi_thermal_rel.c +++ b/drivers/thermal/int340x_thermal/acpi_thermal_rel.c @@ -119,15 +119,11 @@ int acpi_parse_trt(acpi_handle handle, int *trt_count, struct trt **trtp, continue; result = acpi_bus_get_device(trt->source, &adev); - if (!result) - acpi_create_platform_device(adev); - else + if (result) pr_warn("Failed to get source ACPI device\n"); result = acpi_bus_get_device(trt->target, &adev); - if (!result) - acpi_create_platform_device(adev); - else + if (result) pr_warn("Failed to get target ACPI device\n"); } @@ -206,16 +202,12 @@ int acpi_parse_art(acpi_handle handle, int *art_count, struct art **artp, if (art->source) { result = acpi_bus_get_device(art->source, &adev); - if (!result) - acpi_create_platform_device(adev); - else + if (result) pr_warn("Failed to get source ACPI device\n"); } if (art->target) { result = acpi_bus_get_device(art->target, &adev); - if (!result) - acpi_create_platform_device(adev); - else + if (result) pr_warn("Failed to get source ACPI device\n"); } } diff --git a/drivers/thermal/int340x_thermal/int3400_thermal.c b/drivers/thermal/int340x_thermal/int3400_thermal.c index 65a98a97df07..25d244cbbe8f 100644 --- a/drivers/thermal/int340x_thermal/int3400_thermal.c +++ b/drivers/thermal/int340x_thermal/int3400_thermal.c @@ -18,19 +18,15 @@ enum int3400_thermal_uuid { INT3400_THERMAL_PASSIVE_1, - INT3400_THERMAL_PASSIVE_2, INT3400_THERMAL_ACTIVE, INT3400_THERMAL_CRITICAL, - INT3400_THERMAL_COOLING_MODE, INT3400_THERMAL_MAXIMUM_UUID, }; static u8 *int3400_thermal_uuids[INT3400_THERMAL_MAXIMUM_UUID] = { "42A441D6-AE6A-462b-A84B-4A8CE79027D3", - "9E04115A-AE87-4D1C-9500-0F3E340BFE75", "3A95C389-E4B8-4629-A526-C52C88626BAE", "97C68AE7-15FA-499c-B8C9-5DA81D606E0A", - "16CAF1B7-DD38-40ed-B1C1-1B8A1913D531", }; struct int3400_thermal_priv { diff --git a/drivers/thermal/int340x_thermal/int3402_thermal.c b/drivers/thermal/int340x_thermal/int3402_thermal.c index c5cbc3af3a05..69df3d960303 100644 --- a/drivers/thermal/int340x_thermal/int3402_thermal.c +++ b/drivers/thermal/int340x_thermal/int3402_thermal.c @@ -14,152 +14,39 @@ #include <linux/platform_device.h> #include <linux/acpi.h> #include <linux/thermal.h> +#include "int340x_thermal_zone.h" -#define ACPI_ACTIVE_COOLING_MAX_NR 10 - -struct active_trip { - unsigned long temp; - int id; - bool valid; -}; +#define INT3402_PERF_CHANGED_EVENT 0x80 +#define INT3402_THERMAL_EVENT 0x90 struct int3402_thermal_data { - unsigned long *aux_trips; - int aux_trip_nr; - unsigned long psv_temp; - int psv_trip_id; - unsigned long crt_temp; - int crt_trip_id; - unsigned long hot_temp; - int hot_trip_id; - struct active_trip act_trips[ACPI_ACTIVE_COOLING_MAX_NR]; acpi_handle *handle; + struct int34x_thermal_zone *int340x_zone; }; -static int int3402_thermal_get_zone_temp(struct thermal_zone_device *zone, - unsigned long *temp) -{ - struct int3402_thermal_data *d = zone->devdata; - unsigned long long tmp; - acpi_status status; - - status = acpi_evaluate_integer(d->handle, "_TMP", NULL, &tmp); - if (ACPI_FAILURE(status)) - return -ENODEV; - - /* _TMP returns the temperature in tenths of degrees Kelvin */ - *temp = DECI_KELVIN_TO_MILLICELSIUS(tmp); - - return 0; -} - -static int int3402_thermal_get_trip_temp(struct thermal_zone_device *zone, - int trip, unsigned long *temp) +static void int3402_notify(acpi_handle handle, u32 event, void *data) { - struct int3402_thermal_data *d = zone->devdata; - int i; - - if (trip < d->aux_trip_nr) - *temp = d->aux_trips[trip]; - else if (trip == d->crt_trip_id) - *temp = d->crt_temp; - else if (trip == d->psv_trip_id) - *temp = d->psv_temp; - else if (trip == d->hot_trip_id) - *temp = d->hot_temp; - else { - for (i = 0; i < ACPI_ACTIVE_COOLING_MAX_NR; i++) { - if (d->act_trips[i].valid && - d->act_trips[i].id == trip) { - *temp = d->act_trips[i].temp; - break; - } - } - if (i == ACPI_ACTIVE_COOLING_MAX_NR) - return -EINVAL; + struct int3402_thermal_data *priv = data; + + if (!priv) + return; + + switch (event) { + case INT3402_PERF_CHANGED_EVENT: + break; + case INT3402_THERMAL_EVENT: + int340x_thermal_zone_device_update(priv->int340x_zone); + break; + default: + break; } - return 0; -} - -static int int3402_thermal_get_trip_type(struct thermal_zone_device *zone, - int trip, enum thermal_trip_type *type) -{ - struct int3402_thermal_data *d = zone->devdata; - int i; - - if (trip < d->aux_trip_nr) - *type = THERMAL_TRIP_PASSIVE; - else if (trip == d->crt_trip_id) - *type = THERMAL_TRIP_CRITICAL; - else if (trip == d->hot_trip_id) - *type = THERMAL_TRIP_HOT; - else if (trip == d->psv_trip_id) - *type = THERMAL_TRIP_PASSIVE; - else { - for (i = 0; i < ACPI_ACTIVE_COOLING_MAX_NR; i++) { - if (d->act_trips[i].valid && - d->act_trips[i].id == trip) { - *type = THERMAL_TRIP_ACTIVE; - break; - } - } - if (i == ACPI_ACTIVE_COOLING_MAX_NR) - return -EINVAL; - } - return 0; -} - -static int int3402_thermal_set_trip_temp(struct thermal_zone_device *zone, int trip, - unsigned long temp) -{ - struct int3402_thermal_data *d = zone->devdata; - acpi_status status; - char name[10]; - - snprintf(name, sizeof(name), "PAT%d", trip); - status = acpi_execute_simple_method(d->handle, name, - MILLICELSIUS_TO_DECI_KELVIN(temp)); - if (ACPI_FAILURE(status)) - return -EIO; - - d->aux_trips[trip] = temp; - return 0; -} - -static struct thermal_zone_device_ops int3402_thermal_zone_ops = { - .get_temp = int3402_thermal_get_zone_temp, - .get_trip_temp = int3402_thermal_get_trip_temp, - .get_trip_type = int3402_thermal_get_trip_type, - .set_trip_temp = int3402_thermal_set_trip_temp, -}; - -static struct thermal_zone_params int3402_thermal_params = { - .governor_name = "user_space", - .no_hwmon = true, -}; - -static int int3402_thermal_get_temp(acpi_handle handle, char *name, - unsigned long *temp) -{ - unsigned long long r; - acpi_status status; - - status = acpi_evaluate_integer(handle, name, NULL, &r); - if (ACPI_FAILURE(status)) - return -EIO; - - *temp = DECI_KELVIN_TO_MILLICELSIUS(r); - return 0; } static int int3402_thermal_probe(struct platform_device *pdev) { struct acpi_device *adev = ACPI_COMPANION(&pdev->dev); struct int3402_thermal_data *d; - struct thermal_zone_device *zone; - acpi_status status; - unsigned long long trip_cnt; - int trip_mask = 0, i; + int ret; if (!acpi_has_method(adev->handle, "_TMP")) return -ENODEV; @@ -168,54 +55,33 @@ static int int3402_thermal_probe(struct platform_device *pdev) if (!d) return -ENOMEM; - status = acpi_evaluate_integer(adev->handle, "PATC", NULL, &trip_cnt); - if (ACPI_FAILURE(status)) - trip_cnt = 0; - else { - d->aux_trips = devm_kzalloc(&pdev->dev, - sizeof(*d->aux_trips) * trip_cnt, GFP_KERNEL); - if (!d->aux_trips) - return -ENOMEM; - trip_mask = trip_cnt - 1; - d->handle = adev->handle; - d->aux_trip_nr = trip_cnt; - } - - d->crt_trip_id = -1; - if (!int3402_thermal_get_temp(adev->handle, "_CRT", &d->crt_temp)) - d->crt_trip_id = trip_cnt++; - d->hot_trip_id = -1; - if (!int3402_thermal_get_temp(adev->handle, "_HOT", &d->hot_temp)) - d->hot_trip_id = trip_cnt++; - d->psv_trip_id = -1; - if (!int3402_thermal_get_temp(adev->handle, "_PSV", &d->psv_temp)) - d->psv_trip_id = trip_cnt++; - for (i = 0; i < ACPI_ACTIVE_COOLING_MAX_NR; i++) { - char name[5] = { '_', 'A', 'C', '0' + i, '\0' }; - if (int3402_thermal_get_temp(adev->handle, name, - &d->act_trips[i].temp)) - break; - d->act_trips[i].id = trip_cnt++; - d->act_trips[i].valid = true; + d->int340x_zone = int340x_thermal_zone_add(adev, NULL); + if (IS_ERR(d->int340x_zone)) + return PTR_ERR(d->int340x_zone); + + ret = acpi_install_notify_handler(adev->handle, + ACPI_DEVICE_NOTIFY, + int3402_notify, + d); + if (ret) { + int340x_thermal_zone_remove(d->int340x_zone); + return ret; } - zone = thermal_zone_device_register(acpi_device_bid(adev), trip_cnt, - trip_mask, d, - &int3402_thermal_zone_ops, - &int3402_thermal_params, - 0, 0); - if (IS_ERR(zone)) - return PTR_ERR(zone); - platform_set_drvdata(pdev, zone); + d->handle = adev->handle; + platform_set_drvdata(pdev, d); return 0; } static int int3402_thermal_remove(struct platform_device *pdev) { - struct thermal_zone_device *zone = platform_get_drvdata(pdev); + struct int3402_thermal_data *d = platform_get_drvdata(pdev); + + acpi_remove_notify_handler(d->handle, + ACPI_DEVICE_NOTIFY, int3402_notify); + int340x_thermal_zone_remove(d->int340x_zone); - thermal_zone_device_unregister(zone); return 0; } diff --git a/drivers/thermal/int340x_thermal/int3403_thermal.c b/drivers/thermal/int340x_thermal/int3403_thermal.c index 0faf500d8a77..50a7a08e3a15 100644 --- a/drivers/thermal/int340x_thermal/int3403_thermal.c +++ b/drivers/thermal/int340x_thermal/int3403_thermal.c @@ -19,6 +19,7 @@ #include <linux/acpi.h> #include <linux/thermal.h> #include <linux/platform_device.h> +#include "int340x_thermal_zone.h" #define INT3403_TYPE_SENSOR 0x03 #define INT3403_TYPE_CHARGER 0x0B @@ -26,18 +27,9 @@ #define INT3403_PERF_CHANGED_EVENT 0x80 #define INT3403_THERMAL_EVENT 0x90 -#define DECI_KELVIN_TO_MILLI_CELSIUS(t, off) (((t) - (off)) * 100) -#define KELVIN_OFFSET 2732 -#define MILLI_CELSIUS_TO_DECI_KELVIN(t, off) (((t) / 100) + (off)) - +/* Preserved structure for future expandbility */ struct int3403_sensor { - struct thermal_zone_device *tzone; - unsigned long *thresholds; - unsigned long crit_temp; - int crit_trip_id; - unsigned long psv_temp; - int psv_trip_id; - + struct int34x_thermal_zone *int340x_zone; }; struct int3403_performance_state { @@ -63,126 +55,6 @@ struct int3403_priv { void *priv; }; -static int sys_get_curr_temp(struct thermal_zone_device *tzone, - unsigned long *temp) -{ - struct int3403_priv *priv = tzone->devdata; - struct acpi_device *device = priv->adev; - unsigned long long tmp; - acpi_status status; - - status = acpi_evaluate_integer(device->handle, "_TMP", NULL, &tmp); - if (ACPI_FAILURE(status)) - return -EIO; - - *temp = DECI_KELVIN_TO_MILLI_CELSIUS(tmp, KELVIN_OFFSET); - - return 0; -} - -static int sys_get_trip_hyst(struct thermal_zone_device *tzone, - int trip, unsigned long *temp) -{ - struct int3403_priv *priv = tzone->devdata; - struct acpi_device *device = priv->adev; - unsigned long long hyst; - acpi_status status; - - status = acpi_evaluate_integer(device->handle, "GTSH", NULL, &hyst); - if (ACPI_FAILURE(status)) - return -EIO; - - /* - * Thermal hysteresis represents a temperature difference. - * Kelvin and Celsius have same degree size. So the - * conversion here between tenths of degree Kelvin unit - * and Milli-Celsius unit is just to multiply 100. - */ - *temp = hyst * 100; - - return 0; -} - -static int sys_get_trip_temp(struct thermal_zone_device *tzone, - int trip, unsigned long *temp) -{ - struct int3403_priv *priv = tzone->devdata; - struct int3403_sensor *obj = priv->priv; - - if (priv->type != INT3403_TYPE_SENSOR || !obj) - return -EINVAL; - - if (trip == obj->crit_trip_id) - *temp = obj->crit_temp; - else if (trip == obj->psv_trip_id) - *temp = obj->psv_temp; - else { - /* - * get_trip_temp is a mandatory callback but - * PATx method doesn't return any value, so return - * cached value, which was last set from user space - */ - *temp = obj->thresholds[trip]; - } - - return 0; -} - -static int sys_get_trip_type(struct thermal_zone_device *thermal, - int trip, enum thermal_trip_type *type) -{ - struct int3403_priv *priv = thermal->devdata; - struct int3403_sensor *obj = priv->priv; - - /* Mandatory callback, may not mean much here */ - if (trip == obj->crit_trip_id) - *type = THERMAL_TRIP_CRITICAL; - else - *type = THERMAL_TRIP_PASSIVE; - - return 0; -} - -int sys_set_trip_temp(struct thermal_zone_device *tzone, int trip, - unsigned long temp) -{ - struct int3403_priv *priv = tzone->devdata; - struct acpi_device *device = priv->adev; - struct int3403_sensor *obj = priv->priv; - acpi_status status; - char name[10]; - int ret = 0; - - snprintf(name, sizeof(name), "PAT%d", trip); - if (acpi_has_method(device->handle, name)) { - status = acpi_execute_simple_method(device->handle, name, - MILLI_CELSIUS_TO_DECI_KELVIN(temp, - KELVIN_OFFSET)); - if (ACPI_FAILURE(status)) - ret = -EIO; - else - obj->thresholds[trip] = temp; - } else { - ret = -EIO; - dev_err(&device->dev, "sys_set_trip_temp: method not found\n"); - } - - return ret; -} - -static struct thermal_zone_device_ops tzone_ops = { - .get_temp = sys_get_curr_temp, - .get_trip_temp = sys_get_trip_temp, - .get_trip_type = sys_get_trip_type, - .set_trip_temp = sys_set_trip_temp, - .get_trip_hyst = sys_get_trip_hyst, -}; - -static struct thermal_zone_params int3403_thermal_params = { - .governor_name = "user_space", - .no_hwmon = true, -}; - static void int3403_notify(acpi_handle handle, u32 event, void *data) { @@ -200,7 +72,7 @@ static void int3403_notify(acpi_handle handle, case INT3403_PERF_CHANGED_EVENT: break; case INT3403_THERMAL_EVENT: - thermal_zone_device_update(obj->tzone); + int340x_thermal_zone_device_update(obj->int340x_zone); break; default: dev_err(&priv->pdev->dev, "Unsupported event [0x%x]\n", event); @@ -208,41 +80,10 @@ static void int3403_notify(acpi_handle handle, } } -static int sys_get_trip_crt(struct acpi_device *device, unsigned long *temp) -{ - unsigned long long crt; - acpi_status status; - - status = acpi_evaluate_integer(device->handle, "_CRT", NULL, &crt); - if (ACPI_FAILURE(status)) - return -EIO; - - *temp = DECI_KELVIN_TO_MILLI_CELSIUS(crt, KELVIN_OFFSET); - - return 0; -} - -static int sys_get_trip_psv(struct acpi_device *device, unsigned long *temp) -{ - unsigned long long psv; - acpi_status status; - - status = acpi_evaluate_integer(device->handle, "_PSV", NULL, &psv); - if (ACPI_FAILURE(status)) - return -EIO; - - *temp = DECI_KELVIN_TO_MILLI_CELSIUS(psv, KELVIN_OFFSET); - - return 0; -} - static int int3403_sensor_add(struct int3403_priv *priv) { int result = 0; - acpi_status status; struct int3403_sensor *obj; - unsigned long long trip_cnt; - int trip_mask = 0; obj = devm_kzalloc(&priv->pdev->dev, sizeof(*obj), GFP_KERNEL); if (!obj) @@ -250,39 +91,9 @@ static int int3403_sensor_add(struct int3403_priv *priv) priv->priv = obj; - status = acpi_evaluate_integer(priv->adev->handle, "PATC", NULL, - &trip_cnt); - if (ACPI_FAILURE(status)) - trip_cnt = 0; - - if (trip_cnt) { - /* We have to cache, thresholds can't be readback */ - obj->thresholds = devm_kzalloc(&priv->pdev->dev, - sizeof(*obj->thresholds) * trip_cnt, - GFP_KERNEL); - if (!obj->thresholds) { - result = -ENOMEM; - goto err_free_obj; - } - trip_mask = BIT(trip_cnt) - 1; - } - - obj->psv_trip_id = -1; - if (!sys_get_trip_psv(priv->adev, &obj->psv_temp)) - obj->psv_trip_id = trip_cnt++; - - obj->crit_trip_id = -1; - if (!sys_get_trip_crt(priv->adev, &obj->crit_temp)) - obj->crit_trip_id = trip_cnt++; - - obj->tzone = thermal_zone_device_register(acpi_device_bid(priv->adev), - trip_cnt, trip_mask, priv, &tzone_ops, - &int3403_thermal_params, 0, 0); - if (IS_ERR(obj->tzone)) { - result = PTR_ERR(obj->tzone); - obj->tzone = NULL; - goto err_free_obj; - } + obj->int340x_zone = int340x_thermal_zone_add(priv->adev, NULL); + if (IS_ERR(obj->int340x_zone)) + return PTR_ERR(obj->int340x_zone); result = acpi_install_notify_handler(priv->adev->handle, ACPI_DEVICE_NOTIFY, int3403_notify, @@ -293,7 +104,7 @@ static int int3403_sensor_add(struct int3403_priv *priv) return 0; err_free_obj: - thermal_zone_device_unregister(obj->tzone); + int340x_thermal_zone_remove(obj->int340x_zone); return result; } @@ -303,7 +114,8 @@ static int int3403_sensor_remove(struct int3403_priv *priv) acpi_remove_notify_handler(priv->adev->handle, ACPI_DEVICE_NOTIFY, int3403_notify); - thermal_zone_device_unregister(obj->tzone); + int340x_thermal_zone_remove(obj->int340x_zone); + return 0; } diff --git a/drivers/thermal/int340x_thermal/int340x_thermal_zone.c b/drivers/thermal/int340x_thermal/int340x_thermal_zone.c new file mode 100644 index 000000000000..f88b08877025 --- /dev/null +++ b/drivers/thermal/int340x_thermal/int340x_thermal_zone.c @@ -0,0 +1,276 @@ +/* + * int340x_thermal_zone.c + * Copyright (c) 2015, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + */ +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/acpi.h> +#include <linux/thermal.h> +#include "int340x_thermal_zone.h" + +static int int340x_thermal_get_zone_temp(struct thermal_zone_device *zone, + unsigned long *temp) +{ + struct int34x_thermal_zone *d = zone->devdata; + unsigned long long tmp; + acpi_status status; + + if (d->override_ops && d->override_ops->get_temp) + return d->override_ops->get_temp(zone, temp); + + status = acpi_evaluate_integer(d->adev->handle, "_TMP", NULL, &tmp); + if (ACPI_FAILURE(status)) + return -EIO; + + if (d->lpat_table) { + int conv_temp; + + conv_temp = acpi_lpat_raw_to_temp(d->lpat_table, (int)tmp); + if (conv_temp < 0) + return conv_temp; + + *temp = (unsigned long)conv_temp * 10; + } else + /* _TMP returns the temperature in tenths of degrees Kelvin */ + *temp = DECI_KELVIN_TO_MILLICELSIUS(tmp); + + return 0; +} + +static int int340x_thermal_get_trip_temp(struct thermal_zone_device *zone, + int trip, unsigned long *temp) +{ + struct int34x_thermal_zone *d = zone->devdata; + int i; + + if (d->override_ops && d->override_ops->get_trip_temp) + return d->override_ops->get_trip_temp(zone, trip, temp); + + if (trip < d->aux_trip_nr) + *temp = d->aux_trips[trip]; + else if (trip == d->crt_trip_id) + *temp = d->crt_temp; + else if (trip == d->psv_trip_id) + *temp = d->psv_temp; + else if (trip == d->hot_trip_id) + *temp = d->hot_temp; + else { + for (i = 0; i < INT340X_THERMAL_MAX_ACT_TRIP_COUNT; i++) { + if (d->act_trips[i].valid && + d->act_trips[i].id == trip) { + *temp = d->act_trips[i].temp; + break; + } + } + if (i == INT340X_THERMAL_MAX_ACT_TRIP_COUNT) + return -EINVAL; + } + + return 0; +} + +static int int340x_thermal_get_trip_type(struct thermal_zone_device *zone, + int trip, + enum thermal_trip_type *type) +{ + struct int34x_thermal_zone *d = zone->devdata; + int i; + + if (d->override_ops && d->override_ops->get_trip_type) + return d->override_ops->get_trip_type(zone, trip, type); + + if (trip < d->aux_trip_nr) + *type = THERMAL_TRIP_PASSIVE; + else if (trip == d->crt_trip_id) + *type = THERMAL_TRIP_CRITICAL; + else if (trip == d->hot_trip_id) + *type = THERMAL_TRIP_HOT; + else if (trip == d->psv_trip_id) + *type = THERMAL_TRIP_PASSIVE; + else { + for (i = 0; i < INT340X_THERMAL_MAX_ACT_TRIP_COUNT; i++) { + if (d->act_trips[i].valid && + d->act_trips[i].id == trip) { + *type = THERMAL_TRIP_ACTIVE; + break; + } + } + if (i == INT340X_THERMAL_MAX_ACT_TRIP_COUNT) + return -EINVAL; + } + + return 0; +} + +static int int340x_thermal_set_trip_temp(struct thermal_zone_device *zone, + int trip, unsigned long temp) +{ + struct int34x_thermal_zone *d = zone->devdata; + acpi_status status; + char name[10]; + + if (d->override_ops && d->override_ops->set_trip_temp) + return d->override_ops->set_trip_temp(zone, trip, temp); + + snprintf(name, sizeof(name), "PAT%d", trip); + status = acpi_execute_simple_method(d->adev->handle, name, + MILLICELSIUS_TO_DECI_KELVIN(temp)); + if (ACPI_FAILURE(status)) + return -EIO; + + d->aux_trips[trip] = temp; + + return 0; +} + + +static int int340x_thermal_get_trip_hyst(struct thermal_zone_device *zone, + int trip, unsigned long *temp) +{ + struct int34x_thermal_zone *d = zone->devdata; + acpi_status status; + unsigned long long hyst; + + if (d->override_ops && d->override_ops->get_trip_hyst) + return d->override_ops->get_trip_hyst(zone, trip, temp); + + status = acpi_evaluate_integer(d->adev->handle, "GTSH", NULL, &hyst); + if (ACPI_FAILURE(status)) + return -EIO; + + *temp = hyst * 100; + + return 0; +} + +static struct thermal_zone_device_ops int340x_thermal_zone_ops = { + .get_temp = int340x_thermal_get_zone_temp, + .get_trip_temp = int340x_thermal_get_trip_temp, + .get_trip_type = int340x_thermal_get_trip_type, + .set_trip_temp = int340x_thermal_set_trip_temp, + .get_trip_hyst = int340x_thermal_get_trip_hyst, +}; + +static int int340x_thermal_get_trip_config(acpi_handle handle, char *name, + unsigned long *temp) +{ + unsigned long long r; + acpi_status status; + + status = acpi_evaluate_integer(handle, name, NULL, &r); + if (ACPI_FAILURE(status)) + return -EIO; + + *temp = DECI_KELVIN_TO_MILLICELSIUS(r); + + return 0; +} + +static struct thermal_zone_params int340x_thermal_params = { + .governor_name = "user_space", + .no_hwmon = true, +}; + +struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev, + struct thermal_zone_device_ops *override_ops) +{ + struct int34x_thermal_zone *int34x_thermal_zone; + acpi_status status; + unsigned long long trip_cnt; + int trip_mask = 0, i; + int ret; + + int34x_thermal_zone = kzalloc(sizeof(*int34x_thermal_zone), + GFP_KERNEL); + if (!int34x_thermal_zone) + return ERR_PTR(-ENOMEM); + + int34x_thermal_zone->adev = adev; + int34x_thermal_zone->override_ops = override_ops; + + status = acpi_evaluate_integer(adev->handle, "PATC", NULL, &trip_cnt); + if (ACPI_FAILURE(status)) + trip_cnt = 0; + else { + int34x_thermal_zone->aux_trips = kzalloc( + sizeof(*int34x_thermal_zone->aux_trips) * + trip_cnt, GFP_KERNEL); + if (!int34x_thermal_zone->aux_trips) { + ret = -ENOMEM; + goto free_mem; + } + trip_mask = BIT(trip_cnt) - 1; + int34x_thermal_zone->aux_trip_nr = trip_cnt; + } + + int34x_thermal_zone->crt_trip_id = -1; + if (!int340x_thermal_get_trip_config(adev->handle, "_CRT", + &int34x_thermal_zone->crt_temp)) + int34x_thermal_zone->crt_trip_id = trip_cnt++; + int34x_thermal_zone->hot_trip_id = -1; + if (!int340x_thermal_get_trip_config(adev->handle, "_HOT", + &int34x_thermal_zone->hot_temp)) + int34x_thermal_zone->hot_trip_id = trip_cnt++; + int34x_thermal_zone->psv_trip_id = -1; + if (!int340x_thermal_get_trip_config(adev->handle, "_PSV", + &int34x_thermal_zone->psv_temp)) + int34x_thermal_zone->psv_trip_id = trip_cnt++; + for (i = 0; i < INT340X_THERMAL_MAX_ACT_TRIP_COUNT; i++) { + char name[5] = { '_', 'A', 'C', '0' + i, '\0' }; + + if (int340x_thermal_get_trip_config(adev->handle, name, + &int34x_thermal_zone->act_trips[i].temp)) + break; + + int34x_thermal_zone->act_trips[i].id = trip_cnt++; + int34x_thermal_zone->act_trips[i].valid = true; + } + int34x_thermal_zone->lpat_table = acpi_lpat_get_conversion_table( + adev->handle); + + int34x_thermal_zone->zone = thermal_zone_device_register( + acpi_device_bid(adev), + trip_cnt, + trip_mask, int34x_thermal_zone, + &int340x_thermal_zone_ops, + &int340x_thermal_params, + 0, 0); + if (IS_ERR(int34x_thermal_zone->zone)) { + ret = PTR_ERR(int34x_thermal_zone->zone); + goto free_lpat; + } + + return int34x_thermal_zone; + +free_lpat: + acpi_lpat_free_conversion_table(int34x_thermal_zone->lpat_table); +free_mem: + kfree(int34x_thermal_zone); + return ERR_PTR(ret); +} +EXPORT_SYMBOL_GPL(int340x_thermal_zone_add); + +void int340x_thermal_zone_remove(struct int34x_thermal_zone + *int34x_thermal_zone) +{ + thermal_zone_device_unregister(int34x_thermal_zone->zone); + acpi_lpat_free_conversion_table(int34x_thermal_zone->lpat_table); + kfree(int34x_thermal_zone); +} +EXPORT_SYMBOL_GPL(int340x_thermal_zone_remove); + +MODULE_AUTHOR("Aaron Lu <aaron.lu@intel.com>"); +MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>"); +MODULE_DESCRIPTION("Intel INT340x common thermal zone handler"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/thermal/int340x_thermal/int340x_thermal_zone.h b/drivers/thermal/int340x_thermal/int340x_thermal_zone.h new file mode 100644 index 000000000000..9f38ab72c4bf --- /dev/null +++ b/drivers/thermal/int340x_thermal/int340x_thermal_zone.h @@ -0,0 +1,68 @@ +/* + * int340x_thermal_zone.h + * Copyright (c) 2015, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + */ + +#ifndef __INT340X_THERMAL_ZONE_H__ +#define __INT340X_THERMAL_ZONE_H__ + +#include <acpi/acpi_lpat.h> + +#define INT340X_THERMAL_MAX_ACT_TRIP_COUNT 10 + +struct active_trip { + unsigned long temp; + int id; + bool valid; +}; + +struct int34x_thermal_zone { + struct acpi_device *adev; + struct active_trip act_trips[INT340X_THERMAL_MAX_ACT_TRIP_COUNT]; + unsigned long *aux_trips; + int aux_trip_nr; + unsigned long psv_temp; + int psv_trip_id; + unsigned long crt_temp; + int crt_trip_id; + unsigned long hot_temp; + int hot_trip_id; + struct thermal_zone_device *zone; + struct thermal_zone_device_ops *override_ops; + void *priv_data; + struct acpi_lpat_conversion_table *lpat_table; +}; + +struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *, + struct thermal_zone_device_ops *override_ops); +void int340x_thermal_zone_remove(struct int34x_thermal_zone *); + +static inline void int340x_thermal_zone_set_priv_data( + struct int34x_thermal_zone *tzone, void *priv_data) +{ + tzone->priv_data = priv_data; +} + +static inline void *int340x_thermal_zone_get_priv_data( + struct int34x_thermal_zone *tzone) +{ + return tzone->priv_data; +} + +static inline void int340x_thermal_zone_device_update( + struct int34x_thermal_zone *tzone) +{ + thermal_zone_device_update(tzone->zone); +} + +#endif diff --git a/drivers/thermal/int340x_thermal/processor_thermal_device.c b/drivers/thermal/int340x_thermal/processor_thermal_device.c index 31bb553aac26..5e8d8e91ea6d 100644 --- a/drivers/thermal/int340x_thermal/processor_thermal_device.c +++ b/drivers/thermal/int340x_thermal/processor_thermal_device.c @@ -18,6 +18,8 @@ #include <linux/pci.h> #include <linux/platform_device.h> #include <linux/acpi.h> +#include <linux/thermal.h> +#include "int340x_thermal_zone.h" /* Broadwell-U/HSB thermal reporting device */ #define PCI_DEVICE_ID_PROC_BDW_THERMAL 0x1603 @@ -39,6 +41,7 @@ struct proc_thermal_device { struct device *dev; struct acpi_device *adev; struct power_config power_limits[2]; + struct int34x_thermal_zone *int340x_zone; }; enum proc_thermal_emum_mode_type { @@ -117,6 +120,72 @@ static struct attribute_group power_limit_attribute_group = { .name = "power_limits" }; +static int stored_tjmax; /* since it is fixed, we can have local storage */ + +static int get_tjmax(void) +{ + u32 eax, edx; + u32 val; + int err; + + err = rdmsr_safe(MSR_IA32_TEMPERATURE_TARGET, &eax, &edx); + if (err) + return err; + + val = (eax >> 16) & 0xff; + if (val) + return val; + + return -EINVAL; +} + +static int read_temp_msr(unsigned long *temp) +{ + int cpu; + u32 eax, edx; + int err; + unsigned long curr_temp_off = 0; + + *temp = 0; + + for_each_online_cpu(cpu) { + err = rdmsr_safe_on_cpu(cpu, MSR_IA32_THERM_STATUS, &eax, + &edx); + if (err) + goto err_ret; + else { + if (eax & 0x80000000) { + curr_temp_off = (eax >> 16) & 0x7f; + if (!*temp || curr_temp_off < *temp) + *temp = curr_temp_off; + } else { + err = -EINVAL; + goto err_ret; + } + } + } + + return 0; +err_ret: + return err; +} + +static int proc_thermal_get_zone_temp(struct thermal_zone_device *zone, + unsigned long *temp) +{ + int ret; + + ret = read_temp_msr(temp); + if (!ret) + *temp = (stored_tjmax - *temp) * 1000; + + return ret; +} + +static struct thermal_zone_device_ops proc_thermal_local_ops = { + .get_temp = proc_thermal_get_zone_temp, +}; + static int proc_thermal_add(struct device *dev, struct proc_thermal_device **priv) { @@ -126,10 +195,14 @@ static int proc_thermal_add(struct device *dev, struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER, NULL }; union acpi_object *elements, *ppcc; union acpi_object *p; + unsigned long long tmp; + struct thermal_zone_device_ops *ops = NULL; int i; int ret; adev = ACPI_COMPANION(dev); + if (!adev) + return -ENODEV; status = acpi_evaluate_object(adev->handle, "PPCC", NULL, &buf); if (ACPI_FAILURE(status)) @@ -176,6 +249,24 @@ static int proc_thermal_add(struct device *dev, ret = sysfs_create_group(&dev->kobj, &power_limit_attribute_group); + if (ret) + goto free_buffer; + + status = acpi_evaluate_integer(adev->handle, "_TMP", NULL, &tmp); + if (ACPI_FAILURE(status)) { + /* there is no _TMP method, add local method */ + stored_tjmax = get_tjmax(); + if (stored_tjmax > 0) + ops = &proc_thermal_local_ops; + } + + proc_priv->int340x_zone = int340x_thermal_zone_add(adev, ops); + if (IS_ERR(proc_priv->int340x_zone)) { + sysfs_remove_group(&proc_priv->dev->kobj, + &power_limit_attribute_group); + ret = PTR_ERR(proc_priv->int340x_zone); + } else + ret = 0; free_buffer: kfree(buf.pointer); @@ -183,8 +274,9 @@ free_buffer: return ret; } -void proc_thermal_remove(struct proc_thermal_device *proc_priv) +static void proc_thermal_remove(struct proc_thermal_device *proc_priv) { + int340x_thermal_zone_remove(proc_priv->int340x_zone); sysfs_remove_group(&proc_priv->dev->kobj, &power_limit_attribute_group); } diff --git a/drivers/thermal/intel_soc_dts_thermal.c b/drivers/thermal/intel_soc_dts_thermal.c index 5580f5b24eb9..9013505e43b7 100644 --- a/drivers/thermal/intel_soc_dts_thermal.c +++ b/drivers/thermal/intel_soc_dts_thermal.c @@ -309,10 +309,13 @@ static int soc_dts_enable(int id) return ret; } -static struct soc_sensor_entry *alloc_soc_dts(int id, u32 tj_max) +static struct soc_sensor_entry *alloc_soc_dts(int id, u32 tj_max, + bool notification_support) { struct soc_sensor_entry *aux_entry; char name[10]; + int trip_count = 0; + int trip_mask = 0; int err; aux_entry = kzalloc(sizeof(*aux_entry), GFP_KERNEL); @@ -332,11 +335,16 @@ static struct soc_sensor_entry *alloc_soc_dts(int id, u32 tj_max) aux_entry->tj_max = tj_max; aux_entry->temp_mask = 0x00FF << (id * 8); aux_entry->temp_shift = id * 8; + if (notification_support) { + trip_count = SOC_MAX_DTS_TRIPS; + trip_mask = 0x02; + } snprintf(name, sizeof(name), "soc_dts%d", id); aux_entry->tzone = thermal_zone_device_register(name, - SOC_MAX_DTS_TRIPS, - 0x02, - aux_entry, &tzone_ops, NULL, 0, 0); + trip_count, + trip_mask, + aux_entry, &tzone_ops, + NULL, 0, 0); if (IS_ERR(aux_entry->tzone)) { err = PTR_ERR(aux_entry->tzone); goto err_ret; @@ -402,6 +410,7 @@ static irqreturn_t soc_irq_thread_fn(int irq, void *dev_data) static const struct x86_cpu_id soc_thermal_ids[] = { { X86_VENDOR_INTEL, X86_FAMILY_ANY, 0x37, 0, BYT_SOC_DTS_APIC_IRQ}, + { X86_VENDOR_INTEL, X86_FAMILY_ANY, 0x4c, 0, 0}, {} }; MODULE_DEVICE_TABLE(x86cpu, soc_thermal_ids); @@ -420,8 +429,11 @@ static int __init intel_soc_thermal_init(void) if (get_tj_max(&tj_max)) return -EINVAL; + soc_dts_thres_irq = (int)match_cpu->driver_data; + for (i = 0; i < SOC_MAX_DTS_SENSORS; ++i) { - soc_dts[i] = alloc_soc_dts(i, tj_max); + soc_dts[i] = alloc_soc_dts(i, tj_max, + soc_dts_thres_irq ? true : false); if (IS_ERR(soc_dts[i])) { err = PTR_ERR(soc_dts[i]); goto err_free; @@ -430,15 +442,15 @@ static int __init intel_soc_thermal_init(void) spin_lock_init(&intr_notify_lock); - soc_dts_thres_irq = (int)match_cpu->driver_data; - - err = request_threaded_irq(soc_dts_thres_irq, NULL, - soc_irq_thread_fn, - IRQF_TRIGGER_RISING | IRQF_ONESHOT, - "soc_dts", soc_dts); - if (err) { - pr_err("request_threaded_irq ret %d\n", err); - goto err_free; + if (soc_dts_thres_irq) { + err = request_threaded_irq(soc_dts_thres_irq, NULL, + soc_irq_thread_fn, + IRQF_TRIGGER_RISING | IRQF_ONESHOT, + "soc_dts", soc_dts); + if (err) { + pr_err("request_threaded_irq ret %d\n", err); + goto err_free; + } } for (i = 0; i < SOC_MAX_DTS_SENSORS; ++i) { @@ -451,7 +463,8 @@ static int __init intel_soc_thermal_init(void) err_trip_temp: i = SOC_MAX_DTS_SENSORS; - free_irq(soc_dts_thres_irq, soc_dts); + if (soc_dts_thres_irq) + free_irq(soc_dts_thres_irq, soc_dts); err_free: while (--i >= 0) free_soc_dts(soc_dts[i]); @@ -466,7 +479,8 @@ static void __exit intel_soc_thermal_exit(void) for (i = 0; i < SOC_MAX_DTS_SENSORS; ++i) update_trip_temp(soc_dts[i], 0, 0); - free_irq(soc_dts_thres_irq, soc_dts); + if (soc_dts_thres_irq) + free_irq(soc_dts_thres_irq, soc_dts); for (i = 0; i < SOC_MAX_DTS_SENSORS; ++i) free_soc_dts(soc_dts[i]); diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c index e145b66df444..668fb1bdea9e 100644 --- a/drivers/thermal/of-thermal.c +++ b/drivers/thermal/of-thermal.c @@ -149,7 +149,7 @@ EXPORT_SYMBOL_GPL(of_thermal_is_trip_valid); * * Return: pointer to trip points table, NULL otherwise */ -const struct thermal_trip * const +const struct thermal_trip * of_thermal_get_trip_points(struct thermal_zone_device *tz) { struct __thermal_zone *data = tz->devdata; @@ -497,6 +497,9 @@ thermal_zone_of_sensor_register(struct device *dev, int sensor_id, void *data, if (sensor_specs.np == sensor_np && id == sensor_id) { tzd = thermal_zone_of_add_sensor(child, sensor_np, data, ops); + if (!IS_ERR(tzd)) + tzd->ops->set_mode(tzd, THERMAL_DEVICE_ENABLED); + of_node_put(sensor_specs.np); of_node_put(child); goto exit; diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c index 8803e693fe68..2580a4872f90 100644 --- a/drivers/thermal/rcar_thermal.c +++ b/drivers/thermal/rcar_thermal.c @@ -63,7 +63,7 @@ struct rcar_thermal_priv { struct mutex lock; struct list_head list; int id; - int ctemp; + u32 ctemp; }; #define rcar_thermal_for_each_priv(pos, common) \ @@ -145,7 +145,7 @@ static int rcar_thermal_update_temp(struct rcar_thermal_priv *priv) { struct device *dev = rcar_priv_to_dev(priv); int i; - int ctemp, old, new; + u32 ctemp, old, new; int ret = -EINVAL; mutex_lock(&priv->lock); @@ -372,6 +372,7 @@ static int rcar_thermal_probe(struct platform_device *pdev) int i; int ret = -ENODEV; int idle = IDLE_INTERVAL; + u32 enr_bits = 0; common = devm_kzalloc(dev, sizeof(*common), GFP_KERNEL); if (!common) @@ -390,7 +391,7 @@ static int rcar_thermal_probe(struct platform_device *pdev) /* * platform has IRQ support. - * Then, drier use common register + * Then, driver uses common registers */ ret = devm_request_irq(dev, irq->start, rcar_thermal_irq, 0, @@ -408,9 +409,6 @@ static int rcar_thermal_probe(struct platform_device *pdev) if (IS_ERR(common->base)) return PTR_ERR(common->base); - /* enable temperature comparation */ - rcar_thermal_common_write(common, ENR, 0x00030303); - idle = 0; /* polling delay is not needed */ } @@ -452,8 +450,15 @@ static int rcar_thermal_probe(struct platform_device *pdev) rcar_thermal_irq_enable(priv); list_move_tail(&priv->list, &common->head); + + /* update ENR bits */ + enr_bits |= 3 << (i * 8); } + /* enable temperature comparation */ + if (irq) + rcar_thermal_common_write(common, ENR, enr_bits); + platform_set_drvdata(pdev, common); dev_info(dev, "%d sensor probed\n", i); diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c index 9c6ce548e363..3aa46ac7cdbc 100644 --- a/drivers/thermal/rockchip_thermal.c +++ b/drivers/thermal/rockchip_thermal.c @@ -193,19 +193,20 @@ static u32 rk_tsadcv2_temp_to_code(long temp) static long rk_tsadcv2_code_to_temp(u32 code) { - int high, low, mid; - - low = 0; - high = ARRAY_SIZE(v2_code_table) - 1; - mid = (high + low) / 2; - - if (code > v2_code_table[low].code || code < v2_code_table[high].code) - return 125000; /* No code available, return max temperature */ + unsigned int low = 0; + unsigned int high = ARRAY_SIZE(v2_code_table) - 1; + unsigned int mid = (low + high) / 2; + unsigned int num; + unsigned long denom; + + /* Invalid code, return -EAGAIN */ + if (code > TSADCV2_DATA_MASK) + return -EAGAIN; - while (low <= high) { - if (code >= v2_code_table[mid].code && code < - v2_code_table[mid - 1].code) - return v2_code_table[mid].temp; + while (low <= high && mid) { + if (code >= v2_code_table[mid].code && + code < v2_code_table[mid - 1].code) + break; else if (code < v2_code_table[mid].code) low = mid + 1; else @@ -213,7 +214,16 @@ static long rk_tsadcv2_code_to_temp(u32 code) mid = (low + high) / 2; } - return 125000; + /* + * The 5C granularity provided by the table is too much. Let's + * assume that the relationship between sensor readings and + * temperature between 2 table entries is linear and interpolate + * to produce less granular result. + */ + num = v2_code_table[mid].temp - v2_code_table[mid - 1].temp; + num *= v2_code_table[mid - 1].code - code; + denom = v2_code_table[mid - 1].code - v2_code_table[mid].code; + return v2_code_table[mid - 1].temp + (num / denom); } /** diff --git a/drivers/thermal/samsung/Kconfig b/drivers/thermal/samsung/Kconfig index c43306ecc0ab..c8e35c1a43dc 100644 --- a/drivers/thermal/samsung/Kconfig +++ b/drivers/thermal/samsung/Kconfig @@ -7,12 +7,3 @@ config EXYNOS_THERMAL the TMU, reports temperature and handles cooling action if defined. This driver uses the Exynos core thermal APIs and TMU configuration data from the supported SoCs. - -config EXYNOS_THERMAL_CORE - bool "Core thermal framework support for EXYNOS SOCs" - depends on EXYNOS_THERMAL - help - If you say yes here you get support for EXYNOS TMU - (Thermal Management Unit) common registration/unregistration - functions to the core thermal layer and also to use the generic - CPU cooling APIs. diff --git a/drivers/thermal/samsung/Makefile b/drivers/thermal/samsung/Makefile index c09d83095dc2..1e47d0d89ce0 100644 --- a/drivers/thermal/samsung/Makefile +++ b/drivers/thermal/samsung/Makefile @@ -3,5 +3,3 @@ # obj-$(CONFIG_EXYNOS_THERMAL) += exynos_thermal.o exynos_thermal-y := exynos_tmu.o -exynos_thermal-y += exynos_tmu_data.o -exynos_thermal-$(CONFIG_EXYNOS_THERMAL_CORE) += exynos_thermal_common.o diff --git a/drivers/thermal/samsung/exynos_thermal_common.c b/drivers/thermal/samsung/exynos_thermal_common.c deleted file mode 100644 index 6dc3815cc73f..000000000000 --- a/drivers/thermal/samsung/exynos_thermal_common.c +++ /dev/null @@ -1,427 +0,0 @@ -/* - * exynos_thermal_common.c - Samsung EXYNOS common thermal file - * - * Copyright (C) 2013 Samsung Electronics - * Amit Daniel Kachhap <amit.daniel@samsung.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#include <linux/cpu_cooling.h> -#include <linux/err.h> -#include <linux/slab.h> -#include <linux/thermal.h> - -#include "exynos_thermal_common.h" - -struct exynos_thermal_zone { - enum thermal_device_mode mode; - struct thermal_zone_device *therm_dev; - struct thermal_cooling_device *cool_dev[MAX_COOLING_DEVICE]; - unsigned int cool_dev_size; - struct platform_device *exynos4_dev; - struct thermal_sensor_conf *sensor_conf; - bool bind; -}; - -/* Get mode callback functions for thermal zone */ -static int exynos_get_mode(struct thermal_zone_device *thermal, - enum thermal_device_mode *mode) -{ - struct exynos_thermal_zone *th_zone = thermal->devdata; - if (th_zone) - *mode = th_zone->mode; - return 0; -} - -/* Set mode callback functions for thermal zone */ -static int exynos_set_mode(struct thermal_zone_device *thermal, - enum thermal_device_mode mode) -{ - struct exynos_thermal_zone *th_zone = thermal->devdata; - if (!th_zone) { - dev_err(&thermal->device, - "thermal zone not registered\n"); - return 0; - } - - mutex_lock(&thermal->lock); - - if (mode == THERMAL_DEVICE_ENABLED && - !th_zone->sensor_conf->trip_data.trigger_falling) - thermal->polling_delay = IDLE_INTERVAL; - else - thermal->polling_delay = 0; - - mutex_unlock(&thermal->lock); - - th_zone->mode = mode; - thermal_zone_device_update(thermal); - dev_dbg(th_zone->sensor_conf->dev, - "thermal polling set for duration=%d msec\n", - thermal->polling_delay); - return 0; -} - - -/* Get trip type callback functions for thermal zone */ -static int exynos_get_trip_type(struct thermal_zone_device *thermal, int trip, - enum thermal_trip_type *type) -{ - struct exynos_thermal_zone *th_zone = thermal->devdata; - int max_trip = th_zone->sensor_conf->trip_data.trip_count; - int trip_type; - - if (trip < 0 || trip >= max_trip) - return -EINVAL; - - trip_type = th_zone->sensor_conf->trip_data.trip_type[trip]; - - if (trip_type == SW_TRIP) - *type = THERMAL_TRIP_CRITICAL; - else if (trip_type == THROTTLE_ACTIVE) - *type = THERMAL_TRIP_ACTIVE; - else if (trip_type == THROTTLE_PASSIVE) - *type = THERMAL_TRIP_PASSIVE; - else - return -EINVAL; - - return 0; -} - -/* Get trip temperature callback functions for thermal zone */ -static int exynos_get_trip_temp(struct thermal_zone_device *thermal, int trip, - unsigned long *temp) -{ - struct exynos_thermal_zone *th_zone = thermal->devdata; - int max_trip = th_zone->sensor_conf->trip_data.trip_count; - - if (trip < 0 || trip >= max_trip) - return -EINVAL; - - *temp = th_zone->sensor_conf->trip_data.trip_val[trip]; - /* convert the temperature into millicelsius */ - *temp = *temp * MCELSIUS; - - return 0; -} - -/* Get critical temperature callback functions for thermal zone */ -static int exynos_get_crit_temp(struct thermal_zone_device *thermal, - unsigned long *temp) -{ - struct exynos_thermal_zone *th_zone = thermal->devdata; - int max_trip = th_zone->sensor_conf->trip_data.trip_count; - /* Get the temp of highest trip*/ - return exynos_get_trip_temp(thermal, max_trip - 1, temp); -} - -/* Bind callback functions for thermal zone */ -static int exynos_bind(struct thermal_zone_device *thermal, - struct thermal_cooling_device *cdev) -{ - int ret = 0, i, tab_size, level; - struct freq_clip_table *tab_ptr, *clip_data; - struct exynos_thermal_zone *th_zone = thermal->devdata; - struct thermal_sensor_conf *data = th_zone->sensor_conf; - - tab_ptr = (struct freq_clip_table *)data->cooling_data.freq_data; - tab_size = data->cooling_data.freq_clip_count; - - if (tab_ptr == NULL || tab_size == 0) - return 0; - - /* find the cooling device registered*/ - for (i = 0; i < th_zone->cool_dev_size; i++) - if (cdev == th_zone->cool_dev[i]) - break; - - /* No matching cooling device */ - if (i == th_zone->cool_dev_size) - return 0; - - /* Bind the thermal zone to the cpufreq cooling device */ - for (i = 0; i < tab_size; i++) { - clip_data = (struct freq_clip_table *)&(tab_ptr[i]); - level = cpufreq_cooling_get_level(0, clip_data->freq_clip_max); - if (level == THERMAL_CSTATE_INVALID) - return 0; - switch (GET_ZONE(i)) { - case MONITOR_ZONE: - case WARN_ZONE: - if (thermal_zone_bind_cooling_device(thermal, i, cdev, - level, 0)) { - dev_err(data->dev, - "error unbinding cdev inst=%d\n", i); - ret = -EINVAL; - } - th_zone->bind = true; - break; - default: - ret = -EINVAL; - } - } - - return ret; -} - -/* Unbind callback functions for thermal zone */ -static int exynos_unbind(struct thermal_zone_device *thermal, - struct thermal_cooling_device *cdev) -{ - int ret = 0, i, tab_size; - struct exynos_thermal_zone *th_zone = thermal->devdata; - struct thermal_sensor_conf *data = th_zone->sensor_conf; - - if (th_zone->bind == false) - return 0; - - tab_size = data->cooling_data.freq_clip_count; - - if (tab_size == 0) - return 0; - - /* find the cooling device registered*/ - for (i = 0; i < th_zone->cool_dev_size; i++) - if (cdev == th_zone->cool_dev[i]) - break; - - /* No matching cooling device */ - if (i == th_zone->cool_dev_size) - return 0; - - /* Bind the thermal zone to the cpufreq cooling device */ - for (i = 0; i < tab_size; i++) { - switch (GET_ZONE(i)) { - case MONITOR_ZONE: - case WARN_ZONE: - if (thermal_zone_unbind_cooling_device(thermal, i, - cdev)) { - dev_err(data->dev, - "error unbinding cdev inst=%d\n", i); - ret = -EINVAL; - } - th_zone->bind = false; - break; - default: - ret = -EINVAL; - } - } - return ret; -} - -/* Get temperature callback functions for thermal zone */ -static int exynos_get_temp(struct thermal_zone_device *thermal, - unsigned long *temp) -{ - struct exynos_thermal_zone *th_zone = thermal->devdata; - void *data; - - if (!th_zone->sensor_conf) { - dev_err(&thermal->device, - "Temperature sensor not initialised\n"); - return -EINVAL; - } - data = th_zone->sensor_conf->driver_data; - *temp = th_zone->sensor_conf->read_temperature(data); - /* convert the temperature into millicelsius */ - *temp = *temp * MCELSIUS; - return 0; -} - -/* Get temperature callback functions for thermal zone */ -static int exynos_set_emul_temp(struct thermal_zone_device *thermal, - unsigned long temp) -{ - void *data; - int ret = -EINVAL; - struct exynos_thermal_zone *th_zone = thermal->devdata; - - if (!th_zone->sensor_conf) { - dev_err(&thermal->device, - "Temperature sensor not initialised\n"); - return -EINVAL; - } - data = th_zone->sensor_conf->driver_data; - if (th_zone->sensor_conf->write_emul_temp) - ret = th_zone->sensor_conf->write_emul_temp(data, temp); - return ret; -} - -/* Get the temperature trend */ -static int exynos_get_trend(struct thermal_zone_device *thermal, - int trip, enum thermal_trend *trend) -{ - int ret; - unsigned long trip_temp; - - ret = exynos_get_trip_temp(thermal, trip, &trip_temp); - if (ret < 0) - return ret; - - if (thermal->temperature >= trip_temp) - *trend = THERMAL_TREND_RAISE_FULL; - else - *trend = THERMAL_TREND_DROP_FULL; - - return 0; -} -/* Operation callback functions for thermal zone */ -static struct thermal_zone_device_ops exynos_dev_ops = { - .bind = exynos_bind, - .unbind = exynos_unbind, - .get_temp = exynos_get_temp, - .set_emul_temp = exynos_set_emul_temp, - .get_trend = exynos_get_trend, - .get_mode = exynos_get_mode, - .set_mode = exynos_set_mode, - .get_trip_type = exynos_get_trip_type, - .get_trip_temp = exynos_get_trip_temp, - .get_crit_temp = exynos_get_crit_temp, -}; - -/* - * This function may be called from interrupt based temperature sensor - * when threshold is changed. - */ -void exynos_report_trigger(struct thermal_sensor_conf *conf) -{ - unsigned int i; - char data[10]; - char *envp[] = { data, NULL }; - struct exynos_thermal_zone *th_zone; - - if (!conf || !conf->pzone_data) { - pr_err("Invalid temperature sensor configuration data\n"); - return; - } - - th_zone = conf->pzone_data; - - if (th_zone->bind == false) { - for (i = 0; i < th_zone->cool_dev_size; i++) { - if (!th_zone->cool_dev[i]) - continue; - exynos_bind(th_zone->therm_dev, - th_zone->cool_dev[i]); - } - } - - thermal_zone_device_update(th_zone->therm_dev); - - mutex_lock(&th_zone->therm_dev->lock); - /* Find the level for which trip happened */ - for (i = 0; i < th_zone->sensor_conf->trip_data.trip_count; i++) { - if (th_zone->therm_dev->last_temperature < - th_zone->sensor_conf->trip_data.trip_val[i] * MCELSIUS) - break; - } - - if (th_zone->mode == THERMAL_DEVICE_ENABLED && - !th_zone->sensor_conf->trip_data.trigger_falling) { - if (i > 0) - th_zone->therm_dev->polling_delay = ACTIVE_INTERVAL; - else - th_zone->therm_dev->polling_delay = IDLE_INTERVAL; - } - - snprintf(data, sizeof(data), "%u", i); - kobject_uevent_env(&th_zone->therm_dev->device.kobj, KOBJ_CHANGE, envp); - mutex_unlock(&th_zone->therm_dev->lock); -} - -/* Register with the in-kernel thermal management */ -int exynos_register_thermal(struct thermal_sensor_conf *sensor_conf) -{ - int ret; - struct exynos_thermal_zone *th_zone; - - if (!sensor_conf || !sensor_conf->read_temperature) { - pr_err("Temperature sensor not initialised\n"); - return -EINVAL; - } - - th_zone = devm_kzalloc(sensor_conf->dev, - sizeof(struct exynos_thermal_zone), GFP_KERNEL); - if (!th_zone) - return -ENOMEM; - - th_zone->sensor_conf = sensor_conf; - /* - * TODO: 1) Handle multiple cooling devices in a thermal zone - * 2) Add a flag/name in cooling info to map to specific - * sensor - */ - if (sensor_conf->cooling_data.freq_clip_count > 0) { - th_zone->cool_dev[th_zone->cool_dev_size] = - cpufreq_cooling_register(cpu_present_mask); - if (IS_ERR(th_zone->cool_dev[th_zone->cool_dev_size])) { - ret = PTR_ERR(th_zone->cool_dev[th_zone->cool_dev_size]); - if (ret != -EPROBE_DEFER) - dev_err(sensor_conf->dev, - "Failed to register cpufreq cooling device: %d\n", - ret); - goto err_unregister; - } - th_zone->cool_dev_size++; - } - - th_zone->therm_dev = thermal_zone_device_register( - sensor_conf->name, sensor_conf->trip_data.trip_count, - 0, th_zone, &exynos_dev_ops, NULL, 0, - sensor_conf->trip_data.trigger_falling ? 0 : - IDLE_INTERVAL); - - if (IS_ERR(th_zone->therm_dev)) { - dev_err(sensor_conf->dev, - "Failed to register thermal zone device\n"); - ret = PTR_ERR(th_zone->therm_dev); - goto err_unregister; - } - th_zone->mode = THERMAL_DEVICE_ENABLED; - sensor_conf->pzone_data = th_zone; - - dev_info(sensor_conf->dev, - "Exynos: Thermal zone(%s) registered\n", sensor_conf->name); - - return 0; - -err_unregister: - exynos_unregister_thermal(sensor_conf); - return ret; -} - -/* Un-Register with the in-kernel thermal management */ -void exynos_unregister_thermal(struct thermal_sensor_conf *sensor_conf) -{ - int i; - struct exynos_thermal_zone *th_zone; - - if (!sensor_conf || !sensor_conf->pzone_data) { - pr_err("Invalid temperature sensor configuration data\n"); - return; - } - - th_zone = sensor_conf->pzone_data; - - thermal_zone_device_unregister(th_zone->therm_dev); - - for (i = 0; i < th_zone->cool_dev_size; ++i) - cpufreq_cooling_unregister(th_zone->cool_dev[i]); - - dev_info(sensor_conf->dev, - "Exynos: Kernel Thermal management unregistered\n"); -} diff --git a/drivers/thermal/samsung/exynos_thermal_common.h b/drivers/thermal/samsung/exynos_thermal_common.h deleted file mode 100644 index cd4471925cdd..000000000000 --- a/drivers/thermal/samsung/exynos_thermal_common.h +++ /dev/null @@ -1,106 +0,0 @@ -/* - * exynos_thermal_common.h - Samsung EXYNOS common header file - * - * Copyright (C) 2013 Samsung Electronics - * Amit Daniel Kachhap <amit.daniel@samsung.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#ifndef _EXYNOS_THERMAL_COMMON_H -#define _EXYNOS_THERMAL_COMMON_H - -/* In-kernel thermal framework related macros & definations */ -#define SENSOR_NAME_LEN 16 -#define MAX_TRIP_COUNT 8 -#define MAX_COOLING_DEVICE 4 - -#define ACTIVE_INTERVAL 500 -#define IDLE_INTERVAL 10000 -#define MCELSIUS 1000 - -/* CPU Zone information */ -#define PANIC_ZONE 4 -#define WARN_ZONE 3 -#define MONITOR_ZONE 2 -#define SAFE_ZONE 1 - -#define GET_ZONE(trip) (trip + 2) -#define GET_TRIP(zone) (zone - 2) - -enum trigger_type { - THROTTLE_ACTIVE = 1, - THROTTLE_PASSIVE, - SW_TRIP, - HW_TRIP, -}; - -/** - * struct freq_clip_table - * @freq_clip_max: maximum frequency allowed for this cooling state. - * @temp_level: Temperature level at which the temperature clipping will - * happen. - * @mask_val: cpumask of the allowed cpu's where the clipping will take place. - * - * This structure is required to be filled and passed to the - * cpufreq_cooling_unregister function. - */ -struct freq_clip_table { - unsigned int freq_clip_max; - unsigned int temp_level; - const struct cpumask *mask_val; -}; - -struct thermal_trip_point_conf { - int trip_val[MAX_TRIP_COUNT]; - int trip_type[MAX_TRIP_COUNT]; - int trip_count; - unsigned char trigger_falling; -}; - -struct thermal_cooling_conf { - struct freq_clip_table freq_data[MAX_TRIP_COUNT]; - int freq_clip_count; -}; - -struct thermal_sensor_conf { - char name[SENSOR_NAME_LEN]; - int (*read_temperature)(void *data); - int (*write_emul_temp)(void *drv_data, unsigned long temp); - struct thermal_trip_point_conf trip_data; - struct thermal_cooling_conf cooling_data; - void *driver_data; - void *pzone_data; - struct device *dev; -}; - -/*Functions used exynos based thermal sensor driver*/ -#ifdef CONFIG_EXYNOS_THERMAL_CORE -void exynos_unregister_thermal(struct thermal_sensor_conf *sensor_conf); -int exynos_register_thermal(struct thermal_sensor_conf *sensor_conf); -void exynos_report_trigger(struct thermal_sensor_conf *sensor_conf); -#else -static inline void -exynos_unregister_thermal(struct thermal_sensor_conf *sensor_conf) { return; } - -static inline int -exynos_register_thermal(struct thermal_sensor_conf *sensor_conf) { return 0; } - -static inline void -exynos_report_trigger(struct thermal_sensor_conf *sensor_conf) { return; } - -#endif /* CONFIG_EXYNOS_THERMAL_CORE */ -#endif /* _EXYNOS_THERMAL_COMMON_H */ diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index d2f1e62a4232..933cd80a6bc5 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -1,6 +1,10 @@ /* * exynos_tmu.c - Samsung EXYNOS TMU (Thermal Management Unit) * + * Copyright (C) 2014 Samsung Electronics + * Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> + * Lukasz Majewski <l.majewski@samsung.com> + * * Copyright (C) 2011 Samsung Electronics * Donggeun Kim <dg77.kim@samsung.com> * Amit Daniel Kachhap <amit.kachhap@linaro.org> @@ -31,8 +35,8 @@ #include <linux/platform_device.h> #include <linux/regulator/consumer.h> -#include "exynos_thermal_common.h" #include "exynos_tmu.h" +#include "../thermal_core.h" /* Exynos generic registers */ #define EXYNOS_TMU_REG_TRIMINFO 0x0 @@ -115,6 +119,27 @@ #define EXYNOS5440_TMU_TH_RISE4_SHIFT 24 #define EXYNOS5440_EFUSE_SWAP_OFFSET 8 +/* Exynos7 specific registers */ +#define EXYNOS7_THD_TEMP_RISE7_6 0x50 +#define EXYNOS7_THD_TEMP_FALL7_6 0x60 +#define EXYNOS7_TMU_REG_INTEN 0x110 +#define EXYNOS7_TMU_REG_INTPEND 0x118 +#define EXYNOS7_TMU_REG_EMUL_CON 0x160 + +#define EXYNOS7_TMU_TEMP_MASK 0x1ff +#define EXYNOS7_PD_DET_EN_SHIFT 23 +#define EXYNOS7_TMU_INTEN_RISE0_SHIFT 0 +#define EXYNOS7_TMU_INTEN_RISE1_SHIFT 1 +#define EXYNOS7_TMU_INTEN_RISE2_SHIFT 2 +#define EXYNOS7_TMU_INTEN_RISE3_SHIFT 3 +#define EXYNOS7_TMU_INTEN_RISE4_SHIFT 4 +#define EXYNOS7_TMU_INTEN_RISE5_SHIFT 5 +#define EXYNOS7_TMU_INTEN_RISE6_SHIFT 6 +#define EXYNOS7_TMU_INTEN_RISE7_SHIFT 7 +#define EXYNOS7_EMUL_DATA_SHIFT 7 +#define EXYNOS7_EMUL_DATA_MASK 0x1ff + +#define MCELSIUS 1000 /** * struct exynos_tmu_data : A structure to hold the private data of the TMU driver @@ -128,6 +153,7 @@ * @lock: lock to implement synchronization. * @clk: pointer to the clock structure. * @clk_sec: pointer to the clock structure for accessing the base_second. + * @sclk: pointer to the clock structure for accessing the tmu special clk. * @temp_error1: fused value of the first point trim. * @temp_error2: fused value of the second point trim. * @regulator: pointer to the TMU regulator structure. @@ -147,10 +173,11 @@ struct exynos_tmu_data { enum soc_type soc; struct work_struct irq_work; struct mutex lock; - struct clk *clk, *clk_sec; - u8 temp_error1, temp_error2; + struct clk *clk, *clk_sec, *sclk; + u16 temp_error1, temp_error2; struct regulator *regulator; - struct thermal_sensor_conf *reg_conf; + struct thermal_zone_device *tzd; + int (*tmu_initialize)(struct platform_device *pdev); void (*tmu_control)(struct platform_device *pdev, bool on); int (*tmu_read)(struct exynos_tmu_data *data); @@ -159,6 +186,33 @@ struct exynos_tmu_data { void (*tmu_clear_irqs)(struct exynos_tmu_data *data); }; +static void exynos_report_trigger(struct exynos_tmu_data *p) +{ + char data[10], *envp[] = { data, NULL }; + struct thermal_zone_device *tz = p->tzd; + unsigned long temp; + unsigned int i; + + if (!tz) { + pr_err("No thermal zone device defined\n"); + return; + } + + thermal_zone_device_update(tz); + + mutex_lock(&tz->lock); + /* Find the level for which trip happened */ + for (i = 0; i < of_thermal_get_ntrips(tz); i++) { + tz->ops->get_trip_temp(tz, i, &temp); + if (tz->last_temperature < temp) + break; + } + + snprintf(data, sizeof(data), "%u", i); + kobject_uevent_env(&tz->device.kobj, KOBJ_CHANGE, envp); + mutex_unlock(&tz->lock); +} + /* * TMU treats temperature as a mapped temperature code. * The temperature is converted differently depending on the calibration type. @@ -190,7 +244,7 @@ static int temp_to_code(struct exynos_tmu_data *data, u8 temp) * Calculate a temperature value from a temperature code. * The unit of the temperature is degree Celsius. */ -static int code_to_temp(struct exynos_tmu_data *data, u8 temp_code) +static int code_to_temp(struct exynos_tmu_data *data, u16 temp_code) { struct exynos_tmu_platform_data *pdata = data->pdata; int temp; @@ -234,14 +288,25 @@ static void sanitize_temp_error(struct exynos_tmu_data *data, u32 trim_info) static u32 get_th_reg(struct exynos_tmu_data *data, u32 threshold, bool falling) { - struct exynos_tmu_platform_data *pdata = data->pdata; + struct thermal_zone_device *tz = data->tzd; + const struct thermal_trip * const trips = + of_thermal_get_trip_points(tz); + unsigned long temp; int i; - for (i = 0; i < pdata->non_hw_trigger_levels; i++) { - u8 temp = pdata->trigger_levels[i]; + if (!trips) { + pr_err("%s: Cannot get trip points from of-thermal.c!\n", + __func__); + return 0; + } + + for (i = 0; i < of_thermal_get_ntrips(tz); i++) { + if (trips[i].type == THERMAL_TRIP_CRITICAL) + continue; + temp = trips[i].temperature / MCELSIUS; if (falling) - temp -= pdata->threshold_falling; + temp -= (trips[i].hysteresis / MCELSIUS); else threshold &= ~(0xff << 8 * i); @@ -305,9 +370,19 @@ static void exynos_tmu_control(struct platform_device *pdev, bool on) static int exynos4210_tmu_initialize(struct platform_device *pdev) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); - struct exynos_tmu_platform_data *pdata = data->pdata; - unsigned int status; + struct thermal_zone_device *tz = data->tzd; + const struct thermal_trip * const trips = + of_thermal_get_trip_points(tz); int ret = 0, threshold_code, i; + unsigned long reference, temp; + unsigned int status; + + if (!trips) { + pr_err("%s: Cannot get trip points from of-thermal.c!\n", + __func__); + ret = -ENODEV; + goto out; + } status = readb(data->base + EXYNOS_TMU_REG_STATUS); if (!status) { @@ -318,12 +393,19 @@ static int exynos4210_tmu_initialize(struct platform_device *pdev) sanitize_temp_error(data, readl(data->base + EXYNOS_TMU_REG_TRIMINFO)); /* Write temperature code for threshold */ - threshold_code = temp_to_code(data, pdata->threshold); + reference = trips[0].temperature / MCELSIUS; + threshold_code = temp_to_code(data, reference); + if (threshold_code < 0) { + ret = threshold_code; + goto out; + } writeb(threshold_code, data->base + EXYNOS4210_TMU_REG_THRESHOLD_TEMP); - for (i = 0; i < pdata->non_hw_trigger_levels; i++) - writeb(pdata->trigger_levels[i], data->base + + for (i = 0; i < of_thermal_get_ntrips(tz); i++) { + temp = trips[i].temperature / MCELSIUS; + writeb(temp - reference, data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL0 + i * 4); + } data->tmu_clear_irqs(data); out: @@ -333,9 +415,11 @@ out: static int exynos4412_tmu_initialize(struct platform_device *pdev) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); - struct exynos_tmu_platform_data *pdata = data->pdata; + const struct thermal_trip * const trips = + of_thermal_get_trip_points(data->tzd); unsigned int status, trim_info, con, ctrl, rising_threshold; int ret = 0, threshold_code, i; + unsigned long crit_temp = 0; status = readb(data->base + EXYNOS_TMU_REG_STATUS); if (!status) { @@ -373,17 +457,29 @@ static int exynos4412_tmu_initialize(struct platform_device *pdev) data->tmu_clear_irqs(data); /* if last threshold limit is also present */ - i = pdata->max_trigger_level - 1; - if (pdata->trigger_levels[i] && pdata->trigger_type[i] == HW_TRIP) { - threshold_code = temp_to_code(data, pdata->trigger_levels[i]); - /* 1-4 level to be assigned in th0 reg */ - rising_threshold &= ~(0xff << 8 * i); - rising_threshold |= threshold_code << 8 * i; - writel(rising_threshold, data->base + EXYNOS_THD_TEMP_RISE); - con = readl(data->base + EXYNOS_TMU_REG_CONTROL); - con |= (1 << EXYNOS_TMU_THERM_TRIP_EN_SHIFT); - writel(con, data->base + EXYNOS_TMU_REG_CONTROL); + for (i = 0; i < of_thermal_get_ntrips(data->tzd); i++) { + if (trips[i].type == THERMAL_TRIP_CRITICAL) { + crit_temp = trips[i].temperature; + break; + } } + + if (i == of_thermal_get_ntrips(data->tzd)) { + pr_err("%s: No CRITICAL trip point defined at of-thermal.c!\n", + __func__); + ret = -EINVAL; + goto out; + } + + threshold_code = temp_to_code(data, crit_temp / MCELSIUS); + /* 1-4 level to be assigned in th0 reg */ + rising_threshold &= ~(0xff << 8 * i); + rising_threshold |= threshold_code << 8 * i; + writel(rising_threshold, data->base + EXYNOS_THD_TEMP_RISE); + con = readl(data->base + EXYNOS_TMU_REG_CONTROL); + con |= (1 << EXYNOS_TMU_THERM_TRIP_EN_SHIFT); + writel(con, data->base + EXYNOS_TMU_REG_CONTROL); + out: return ret; } @@ -391,9 +487,9 @@ out: static int exynos5440_tmu_initialize(struct platform_device *pdev) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); - struct exynos_tmu_platform_data *pdata = data->pdata; unsigned int trim_info = 0, con, rising_threshold; - int ret = 0, threshold_code, i; + int ret = 0, threshold_code; + unsigned long crit_temp = 0; /* * For exynos5440 soc triminfo value is swapped between TMU0 and @@ -422,9 +518,8 @@ static int exynos5440_tmu_initialize(struct platform_device *pdev) data->tmu_clear_irqs(data); /* if last threshold limit is also present */ - i = pdata->max_trigger_level - 1; - if (pdata->trigger_levels[i] && pdata->trigger_type[i] == HW_TRIP) { - threshold_code = temp_to_code(data, pdata->trigger_levels[i]); + if (!data->tzd->ops->get_crit_temp(data->tzd, &crit_temp)) { + threshold_code = temp_to_code(data, crit_temp / MCELSIUS); /* 5th level to be assigned in th2 reg */ rising_threshold = threshold_code << EXYNOS5440_TMU_TH_RISE4_SHIFT; @@ -439,10 +534,88 @@ static int exynos5440_tmu_initialize(struct platform_device *pdev) return ret; } -static void exynos4210_tmu_control(struct platform_device *pdev, bool on) +static int exynos7_tmu_initialize(struct platform_device *pdev) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); + struct thermal_zone_device *tz = data->tzd; struct exynos_tmu_platform_data *pdata = data->pdata; + unsigned int status, trim_info; + unsigned int rising_threshold = 0, falling_threshold = 0; + int ret = 0, threshold_code, i; + unsigned long temp, temp_hist; + unsigned int reg_off, bit_off; + + status = readb(data->base + EXYNOS_TMU_REG_STATUS); + if (!status) { + ret = -EBUSY; + goto out; + } + + trim_info = readl(data->base + EXYNOS_TMU_REG_TRIMINFO); + + data->temp_error1 = trim_info & EXYNOS7_TMU_TEMP_MASK; + if (!data->temp_error1 || + (pdata->min_efuse_value > data->temp_error1) || + (data->temp_error1 > pdata->max_efuse_value)) + data->temp_error1 = pdata->efuse_value & EXYNOS_TMU_TEMP_MASK; + + /* Write temperature code for rising and falling threshold */ + for (i = (of_thermal_get_ntrips(tz) - 1); i >= 0; i--) { + /* + * On exynos7 there are 4 rising and 4 falling threshold + * registers (0x50-0x5c and 0x60-0x6c respectively). Each + * register holds the value of two threshold levels (at bit + * offsets 0 and 16). Based on the fact that there are atmost + * eight possible trigger levels, calculate the register and + * bit offsets where the threshold levels are to be written. + * + * e.g. EXYNOS7_THD_TEMP_RISE7_6 (0x50) + * [24:16] - Threshold level 7 + * [8:0] - Threshold level 6 + * e.g. EXYNOS7_THD_TEMP_RISE5_4 (0x54) + * [24:16] - Threshold level 5 + * [8:0] - Threshold level 4 + * + * and similarly for falling thresholds. + * + * Based on the above, calculate the register and bit offsets + * for rising/falling threshold levels and populate them. + */ + reg_off = ((7 - i) / 2) * 4; + bit_off = ((8 - i) % 2); + + tz->ops->get_trip_temp(tz, i, &temp); + temp /= MCELSIUS; + + tz->ops->get_trip_hyst(tz, i, &temp_hist); + temp_hist = temp - (temp_hist / MCELSIUS); + + /* Set 9-bit temperature code for rising threshold levels */ + threshold_code = temp_to_code(data, temp); + rising_threshold = readl(data->base + + EXYNOS7_THD_TEMP_RISE7_6 + reg_off); + rising_threshold &= ~(EXYNOS7_TMU_TEMP_MASK << (16 * bit_off)); + rising_threshold |= threshold_code << (16 * bit_off); + writel(rising_threshold, + data->base + EXYNOS7_THD_TEMP_RISE7_6 + reg_off); + + /* Set 9-bit temperature code for falling threshold levels */ + threshold_code = temp_to_code(data, temp_hist); + falling_threshold &= ~(EXYNOS7_TMU_TEMP_MASK << (16 * bit_off)); + falling_threshold |= threshold_code << (16 * bit_off); + writel(falling_threshold, + data->base + EXYNOS7_THD_TEMP_FALL7_6 + reg_off); + } + + data->tmu_clear_irqs(data); +out: + return ret; +} + +static void exynos4210_tmu_control(struct platform_device *pdev, bool on) +{ + struct exynos_tmu_data *data = platform_get_drvdata(pdev); + struct thermal_zone_device *tz = data->tzd; unsigned int con, interrupt_en; con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL)); @@ -450,10 +623,15 @@ static void exynos4210_tmu_control(struct platform_device *pdev, bool on) if (on) { con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT); interrupt_en = - pdata->trigger_enable[3] << EXYNOS_TMU_INTEN_RISE3_SHIFT | - pdata->trigger_enable[2] << EXYNOS_TMU_INTEN_RISE2_SHIFT | - pdata->trigger_enable[1] << EXYNOS_TMU_INTEN_RISE1_SHIFT | - pdata->trigger_enable[0] << EXYNOS_TMU_INTEN_RISE0_SHIFT; + (of_thermal_is_trip_valid(tz, 3) + << EXYNOS_TMU_INTEN_RISE3_SHIFT) | + (of_thermal_is_trip_valid(tz, 2) + << EXYNOS_TMU_INTEN_RISE2_SHIFT) | + (of_thermal_is_trip_valid(tz, 1) + << EXYNOS_TMU_INTEN_RISE1_SHIFT) | + (of_thermal_is_trip_valid(tz, 0) + << EXYNOS_TMU_INTEN_RISE0_SHIFT); + if (data->soc != SOC_ARCH_EXYNOS4210) interrupt_en |= interrupt_en << EXYNOS_TMU_INTEN_FALL0_SHIFT; @@ -468,7 +646,7 @@ static void exynos4210_tmu_control(struct platform_device *pdev, bool on) static void exynos5440_tmu_control(struct platform_device *pdev, bool on) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); - struct exynos_tmu_platform_data *pdata = data->pdata; + struct thermal_zone_device *tz = data->tzd; unsigned int con, interrupt_en; con = get_con_reg(data, readl(data->base + EXYNOS5440_TMU_S0_7_CTRL)); @@ -476,11 +654,16 @@ static void exynos5440_tmu_control(struct platform_device *pdev, bool on) if (on) { con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT); interrupt_en = - pdata->trigger_enable[3] << EXYNOS5440_TMU_INTEN_RISE3_SHIFT | - pdata->trigger_enable[2] << EXYNOS5440_TMU_INTEN_RISE2_SHIFT | - pdata->trigger_enable[1] << EXYNOS5440_TMU_INTEN_RISE1_SHIFT | - pdata->trigger_enable[0] << EXYNOS5440_TMU_INTEN_RISE0_SHIFT; - interrupt_en |= interrupt_en << EXYNOS5440_TMU_INTEN_FALL0_SHIFT; + (of_thermal_is_trip_valid(tz, 3) + << EXYNOS5440_TMU_INTEN_RISE3_SHIFT) | + (of_thermal_is_trip_valid(tz, 2) + << EXYNOS5440_TMU_INTEN_RISE2_SHIFT) | + (of_thermal_is_trip_valid(tz, 1) + << EXYNOS5440_TMU_INTEN_RISE1_SHIFT) | + (of_thermal_is_trip_valid(tz, 0) + << EXYNOS5440_TMU_INTEN_RISE0_SHIFT); + interrupt_en |= + interrupt_en << EXYNOS5440_TMU_INTEN_FALL0_SHIFT; } else { con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT); interrupt_en = 0; /* Disable all interrupts */ @@ -489,19 +672,62 @@ static void exynos5440_tmu_control(struct platform_device *pdev, bool on) writel(con, data->base + EXYNOS5440_TMU_S0_7_CTRL); } -static int exynos_tmu_read(struct exynos_tmu_data *data) +static void exynos7_tmu_control(struct platform_device *pdev, bool on) { - int ret; + struct exynos_tmu_data *data = platform_get_drvdata(pdev); + struct thermal_zone_device *tz = data->tzd; + unsigned int con, interrupt_en; + + con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL)); + + if (on) { + con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT); + interrupt_en = + (of_thermal_is_trip_valid(tz, 7) + << EXYNOS7_TMU_INTEN_RISE7_SHIFT) | + (of_thermal_is_trip_valid(tz, 6) + << EXYNOS7_TMU_INTEN_RISE6_SHIFT) | + (of_thermal_is_trip_valid(tz, 5) + << EXYNOS7_TMU_INTEN_RISE5_SHIFT) | + (of_thermal_is_trip_valid(tz, 4) + << EXYNOS7_TMU_INTEN_RISE4_SHIFT) | + (of_thermal_is_trip_valid(tz, 3) + << EXYNOS7_TMU_INTEN_RISE3_SHIFT) | + (of_thermal_is_trip_valid(tz, 2) + << EXYNOS7_TMU_INTEN_RISE2_SHIFT) | + (of_thermal_is_trip_valid(tz, 1) + << EXYNOS7_TMU_INTEN_RISE1_SHIFT) | + (of_thermal_is_trip_valid(tz, 0) + << EXYNOS7_TMU_INTEN_RISE0_SHIFT); + + interrupt_en |= + interrupt_en << EXYNOS_TMU_INTEN_FALL0_SHIFT; + } else { + con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT); + interrupt_en = 0; /* Disable all interrupts */ + } + con |= 1 << EXYNOS7_PD_DET_EN_SHIFT; + + writel(interrupt_en, data->base + EXYNOS7_TMU_REG_INTEN); + writel(con, data->base + EXYNOS_TMU_REG_CONTROL); +} + +static int exynos_get_temp(void *p, long *temp) +{ + struct exynos_tmu_data *data = p; + + if (!data || !data->tmu_read) + return -EINVAL; mutex_lock(&data->lock); clk_enable(data->clk); - ret = data->tmu_read(data); - if (ret >= 0) - ret = code_to_temp(data, ret); + + *temp = code_to_temp(data, data->tmu_read(data)) * MCELSIUS; + clk_disable(data->clk); mutex_unlock(&data->lock); - return ret; + return 0; } #ifdef CONFIG_THERMAL_EMULATION @@ -515,9 +741,19 @@ static u32 get_emul_con_reg(struct exynos_tmu_data *data, unsigned int val, val &= ~(EXYNOS_EMUL_TIME_MASK << EXYNOS_EMUL_TIME_SHIFT); val |= (EXYNOS_EMUL_TIME << EXYNOS_EMUL_TIME_SHIFT); } - val &= ~(EXYNOS_EMUL_DATA_MASK << EXYNOS_EMUL_DATA_SHIFT); - val |= (temp_to_code(data, temp) << EXYNOS_EMUL_DATA_SHIFT) | - EXYNOS_EMUL_ENABLE; + if (data->soc == SOC_ARCH_EXYNOS7) { + val &= ~(EXYNOS7_EMUL_DATA_MASK << + EXYNOS7_EMUL_DATA_SHIFT); + val |= (temp_to_code(data, temp) << + EXYNOS7_EMUL_DATA_SHIFT) | + EXYNOS_EMUL_ENABLE; + } else { + val &= ~(EXYNOS_EMUL_DATA_MASK << + EXYNOS_EMUL_DATA_SHIFT); + val |= (temp_to_code(data, temp) << + EXYNOS_EMUL_DATA_SHIFT) | + EXYNOS_EMUL_ENABLE; + } } else { val &= ~EXYNOS_EMUL_ENABLE; } @@ -533,6 +769,8 @@ static void exynos4412_tmu_set_emulation(struct exynos_tmu_data *data, if (data->soc == SOC_ARCH_EXYNOS5260) emul_con = EXYNOS5260_EMUL_CON; + else if (data->soc == SOC_ARCH_EXYNOS7) + emul_con = EXYNOS7_TMU_REG_EMUL_CON; else emul_con = EXYNOS_EMUL_CON; @@ -576,7 +814,7 @@ out: #define exynos5440_tmu_set_emulation NULL static int exynos_tmu_set_emulation(void *drv_data, unsigned long temp) { return -EINVAL; } -#endif/*CONFIG_THERMAL_EMULATION*/ +#endif /* CONFIG_THERMAL_EMULATION */ static int exynos4210_tmu_read(struct exynos_tmu_data *data) { @@ -596,6 +834,12 @@ static int exynos5440_tmu_read(struct exynos_tmu_data *data) return readb(data->base + EXYNOS5440_TMU_S0_7_TEMP); } +static int exynos7_tmu_read(struct exynos_tmu_data *data) +{ + return readw(data->base + EXYNOS_TMU_REG_CURRENT_TEMP) & + EXYNOS7_TMU_TEMP_MASK; +} + static void exynos_tmu_work(struct work_struct *work) { struct exynos_tmu_data *data = container_of(work, @@ -613,7 +857,7 @@ static void exynos_tmu_work(struct work_struct *work) if (!IS_ERR(data->clk_sec)) clk_disable(data->clk_sec); - exynos_report_trigger(data->reg_conf); + exynos_report_trigger(data); mutex_lock(&data->lock); clk_enable(data->clk); @@ -634,6 +878,9 @@ static void exynos4210_tmu_clear_irqs(struct exynos_tmu_data *data) if (data->soc == SOC_ARCH_EXYNOS5260) { tmu_intstat = EXYNOS5260_TMU_REG_INTSTAT; tmu_intclear = EXYNOS5260_TMU_REG_INTCLEAR; + } else if (data->soc == SOC_ARCH_EXYNOS7) { + tmu_intstat = EXYNOS7_TMU_REG_INTPEND; + tmu_intclear = EXYNOS7_TMU_REG_INTPEND; } else { tmu_intstat = EXYNOS_TMU_REG_INTSTAT; tmu_intclear = EXYNOS_TMU_REG_INTCLEAR; @@ -673,55 +920,94 @@ static irqreturn_t exynos_tmu_irq(int irq, void *id) static const struct of_device_id exynos_tmu_match[] = { { .compatible = "samsung,exynos3250-tmu", - .data = &exynos3250_default_tmu_data, }, { .compatible = "samsung,exynos4210-tmu", - .data = &exynos4210_default_tmu_data, }, { .compatible = "samsung,exynos4412-tmu", - .data = &exynos4412_default_tmu_data, }, { .compatible = "samsung,exynos5250-tmu", - .data = &exynos5250_default_tmu_data, }, { .compatible = "samsung,exynos5260-tmu", - .data = &exynos5260_default_tmu_data, }, { .compatible = "samsung,exynos5420-tmu", - .data = &exynos5420_default_tmu_data, }, { .compatible = "samsung,exynos5420-tmu-ext-triminfo", - .data = &exynos5420_default_tmu_data, }, { .compatible = "samsung,exynos5440-tmu", - .data = &exynos5440_default_tmu_data, + }, + { + .compatible = "samsung,exynos7-tmu", }, {}, }; MODULE_DEVICE_TABLE(of, exynos_tmu_match); -static inline struct exynos_tmu_platform_data *exynos_get_driver_data( - struct platform_device *pdev, int id) +static int exynos_of_get_soc_type(struct device_node *np) +{ + if (of_device_is_compatible(np, "samsung,exynos3250-tmu")) + return SOC_ARCH_EXYNOS3250; + else if (of_device_is_compatible(np, "samsung,exynos4210-tmu")) + return SOC_ARCH_EXYNOS4210; + else if (of_device_is_compatible(np, "samsung,exynos4412-tmu")) + return SOC_ARCH_EXYNOS4412; + else if (of_device_is_compatible(np, "samsung,exynos5250-tmu")) + return SOC_ARCH_EXYNOS5250; + else if (of_device_is_compatible(np, "samsung,exynos5260-tmu")) + return SOC_ARCH_EXYNOS5260; + else if (of_device_is_compatible(np, "samsung,exynos5420-tmu")) + return SOC_ARCH_EXYNOS5420; + else if (of_device_is_compatible(np, + "samsung,exynos5420-tmu-ext-triminfo")) + return SOC_ARCH_EXYNOS5420_TRIMINFO; + else if (of_device_is_compatible(np, "samsung,exynos5440-tmu")) + return SOC_ARCH_EXYNOS5440; + else if (of_device_is_compatible(np, "samsung,exynos7-tmu")) + return SOC_ARCH_EXYNOS7; + + return -EINVAL; +} + +static int exynos_of_sensor_conf(struct device_node *np, + struct exynos_tmu_platform_data *pdata) { - struct exynos_tmu_init_data *data_table; - struct exynos_tmu_platform_data *tmu_data; - const struct of_device_id *match; + u32 value; + int ret; - match = of_match_node(exynos_tmu_match, pdev->dev.of_node); - if (!match) - return NULL; - data_table = (struct exynos_tmu_init_data *) match->data; - if (!data_table || id >= data_table->tmu_count) - return NULL; - tmu_data = data_table->tmu_data; - return (struct exynos_tmu_platform_data *) (tmu_data + id); + of_node_get(np); + + ret = of_property_read_u32(np, "samsung,tmu_gain", &value); + pdata->gain = (u8)value; + of_property_read_u32(np, "samsung,tmu_reference_voltage", &value); + pdata->reference_voltage = (u8)value; + of_property_read_u32(np, "samsung,tmu_noise_cancel_mode", &value); + pdata->noise_cancel_mode = (u8)value; + + of_property_read_u32(np, "samsung,tmu_efuse_value", + &pdata->efuse_value); + of_property_read_u32(np, "samsung,tmu_min_efuse_value", + &pdata->min_efuse_value); + of_property_read_u32(np, "samsung,tmu_max_efuse_value", + &pdata->max_efuse_value); + + of_property_read_u32(np, "samsung,tmu_first_point_trim", &value); + pdata->first_point_trim = (u8)value; + of_property_read_u32(np, "samsung,tmu_second_point_trim", &value); + pdata->second_point_trim = (u8)value; + of_property_read_u32(np, "samsung,tmu_default_temp_offset", &value); + pdata->default_temp_offset = (u8)value; + + of_property_read_u32(np, "samsung,tmu_cal_type", &pdata->cal_type); + of_property_read_u32(np, "samsung,tmu_cal_mode", &pdata->cal_mode); + + of_node_put(np); + return 0; } static int exynos_map_dt_data(struct platform_device *pdev) @@ -771,14 +1057,15 @@ static int exynos_map_dt_data(struct platform_device *pdev) return -EADDRNOTAVAIL; } - pdata = exynos_get_driver_data(pdev, data->id); - if (!pdata) { - dev_err(&pdev->dev, "No platform init data supplied.\n"); - return -ENODEV; - } + pdata = devm_kzalloc(&pdev->dev, + sizeof(struct exynos_tmu_platform_data), + GFP_KERNEL); + if (!pdata) + return -ENOMEM; + exynos_of_sensor_conf(pdev->dev.of_node, pdata); data->pdata = pdata; - data->soc = pdata->type; + data->soc = exynos_of_get_soc_type(pdev->dev.of_node); switch (data->soc) { case SOC_ARCH_EXYNOS4210: @@ -806,6 +1093,13 @@ static int exynos_map_dt_data(struct platform_device *pdev) data->tmu_set_emulation = exynos5440_tmu_set_emulation; data->tmu_clear_irqs = exynos5440_tmu_clear_irqs; break; + case SOC_ARCH_EXYNOS7: + data->tmu_initialize = exynos7_tmu_initialize; + data->tmu_control = exynos7_tmu_control; + data->tmu_read = exynos7_tmu_read; + data->tmu_set_emulation = exynos4412_tmu_set_emulation; + data->tmu_clear_irqs = exynos4210_tmu_clear_irqs; + break; default: dev_err(&pdev->dev, "Platform not supported\n"); return -EINVAL; @@ -834,12 +1128,16 @@ static int exynos_map_dt_data(struct platform_device *pdev) return 0; } +static struct thermal_zone_of_device_ops exynos_sensor_ops = { + .get_temp = exynos_get_temp, + .set_emul_temp = exynos_tmu_set_emulation, +}; + static int exynos_tmu_probe(struct platform_device *pdev) { - struct exynos_tmu_data *data; struct exynos_tmu_platform_data *pdata; - struct thermal_sensor_conf *sensor_conf; - int ret, i; + struct exynos_tmu_data *data; + int ret; data = devm_kzalloc(&pdev->dev, sizeof(struct exynos_tmu_data), GFP_KERNEL); @@ -849,9 +1147,15 @@ static int exynos_tmu_probe(struct platform_device *pdev) platform_set_drvdata(pdev, data); mutex_init(&data->lock); + data->tzd = thermal_zone_of_sensor_register(&pdev->dev, 0, data, + &exynos_sensor_ops); + if (IS_ERR(data->tzd)) { + pr_err("thermal: tz: %p ERROR\n", data->tzd); + return PTR_ERR(data->tzd); + } ret = exynos_map_dt_data(pdev); if (ret) - return ret; + goto err_sensor; pdata = data->pdata; @@ -860,20 +1164,22 @@ static int exynos_tmu_probe(struct platform_device *pdev) data->clk = devm_clk_get(&pdev->dev, "tmu_apbif"); if (IS_ERR(data->clk)) { dev_err(&pdev->dev, "Failed to get clock\n"); - return PTR_ERR(data->clk); + ret = PTR_ERR(data->clk); + goto err_sensor; } data->clk_sec = devm_clk_get(&pdev->dev, "tmu_triminfo_apbif"); if (IS_ERR(data->clk_sec)) { if (data->soc == SOC_ARCH_EXYNOS5420_TRIMINFO) { dev_err(&pdev->dev, "Failed to get triminfo clock\n"); - return PTR_ERR(data->clk_sec); + ret = PTR_ERR(data->clk_sec); + goto err_sensor; } } else { ret = clk_prepare(data->clk_sec); if (ret) { dev_err(&pdev->dev, "Failed to get clock\n"); - return ret; + goto err_sensor; } } @@ -883,82 +1189,57 @@ static int exynos_tmu_probe(struct platform_device *pdev) goto err_clk_sec; } - ret = exynos_tmu_initialize(pdev); - if (ret) { - dev_err(&pdev->dev, "Failed to initialize TMU\n"); - goto err_clk; + if (data->soc == SOC_ARCH_EXYNOS7) { + data->sclk = devm_clk_get(&pdev->dev, "tmu_sclk"); + if (IS_ERR(data->sclk)) { + dev_err(&pdev->dev, "Failed to get sclk\n"); + goto err_clk; + } else { + ret = clk_prepare_enable(data->sclk); + if (ret) { + dev_err(&pdev->dev, "Failed to enable sclk\n"); + goto err_clk; + } + } } - exynos_tmu_control(pdev, true); - - /* Allocate a structure to register with the exynos core thermal */ - sensor_conf = devm_kzalloc(&pdev->dev, - sizeof(struct thermal_sensor_conf), GFP_KERNEL); - if (!sensor_conf) { - ret = -ENOMEM; - goto err_clk; - } - sprintf(sensor_conf->name, "therm_zone%d", data->id); - sensor_conf->read_temperature = (int (*)(void *))exynos_tmu_read; - sensor_conf->write_emul_temp = - (int (*)(void *, unsigned long))exynos_tmu_set_emulation; - sensor_conf->driver_data = data; - sensor_conf->trip_data.trip_count = pdata->trigger_enable[0] + - pdata->trigger_enable[1] + pdata->trigger_enable[2]+ - pdata->trigger_enable[3]; - - for (i = 0; i < sensor_conf->trip_data.trip_count; i++) { - sensor_conf->trip_data.trip_val[i] = - pdata->threshold + pdata->trigger_levels[i]; - sensor_conf->trip_data.trip_type[i] = - pdata->trigger_type[i]; - } - - sensor_conf->trip_data.trigger_falling = pdata->threshold_falling; - - sensor_conf->cooling_data.freq_clip_count = pdata->freq_tab_count; - for (i = 0; i < pdata->freq_tab_count; i++) { - sensor_conf->cooling_data.freq_data[i].freq_clip_max = - pdata->freq_tab[i].freq_clip_max; - sensor_conf->cooling_data.freq_data[i].temp_level = - pdata->freq_tab[i].temp_level; - } - sensor_conf->dev = &pdev->dev; - /* Register the sensor with thermal management interface */ - ret = exynos_register_thermal(sensor_conf); + ret = exynos_tmu_initialize(pdev); if (ret) { - if (ret != -EPROBE_DEFER) - dev_err(&pdev->dev, - "Failed to register thermal interface: %d\n", - ret); - goto err_clk; + dev_err(&pdev->dev, "Failed to initialize TMU\n"); + goto err_sclk; } - data->reg_conf = sensor_conf; 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_clk; + goto err_sclk; } + exynos_tmu_control(pdev, true); return 0; +err_sclk: + clk_disable_unprepare(data->sclk); err_clk: clk_unprepare(data->clk); err_clk_sec: if (!IS_ERR(data->clk_sec)) clk_unprepare(data->clk_sec); +err_sensor: + thermal_zone_of_sensor_unregister(&pdev->dev, data->tzd); + return ret; } 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; - exynos_unregister_thermal(data->reg_conf); - + thermal_zone_of_sensor_unregister(&pdev->dev, tzd); exynos_tmu_control(pdev, false); + clk_disable_unprepare(data->sclk); clk_unprepare(data->clk); if (!IS_ERR(data->clk_sec)) clk_unprepare(data->clk_sec); diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h index da3009bff6c4..4d71ec6c9aa0 100644 --- a/drivers/thermal/samsung/exynos_tmu.h +++ b/drivers/thermal/samsung/exynos_tmu.h @@ -23,16 +23,7 @@ #ifndef _EXYNOS_TMU_H #define _EXYNOS_TMU_H #include <linux/cpu_cooling.h> - -#include "exynos_thermal_common.h" - -enum calibration_type { - TYPE_ONE_POINT_TRIMMING, - TYPE_ONE_POINT_TRIMMING_25, - TYPE_ONE_POINT_TRIMMING_85, - TYPE_TWO_POINT_TRIMMING, - TYPE_NONE, -}; +#include <dt-bindings/thermal/thermal_exynos.h> enum soc_type { SOC_ARCH_EXYNOS3250 = 1, @@ -43,38 +34,11 @@ enum soc_type { SOC_ARCH_EXYNOS5420, SOC_ARCH_EXYNOS5420_TRIMINFO, SOC_ARCH_EXYNOS5440, + SOC_ARCH_EXYNOS7, }; /** * struct exynos_tmu_platform_data - * @threshold: basic temperature for generating interrupt - * 25 <= threshold <= 125 [unit: degree Celsius] - * @threshold_falling: differntial value for setting threshold - * of temperature falling interrupt. - * @trigger_levels: array for each interrupt levels - * [unit: degree Celsius] - * 0: temperature for trigger_level0 interrupt - * condition for trigger_level0 interrupt: - * current temperature > threshold + trigger_levels[0] - * 1: temperature for trigger_level1 interrupt - * condition for trigger_level1 interrupt: - * current temperature > threshold + trigger_levels[1] - * 2: temperature for trigger_level2 interrupt - * condition for trigger_level2 interrupt: - * current temperature > threshold + trigger_levels[2] - * 3: temperature for trigger_level3 interrupt - * condition for trigger_level3 interrupt: - * current temperature > threshold + trigger_levels[3] - * @trigger_type: defines the type of trigger. Possible values are, - * THROTTLE_ACTIVE trigger type - * THROTTLE_PASSIVE trigger type - * SW_TRIP trigger type - * HW_TRIP - * @trigger_enable[]: array to denote which trigger levels are enabled. - * 1 = enable trigger_level[] interrupt, - * 0 = disable trigger_level[] interrupt - * @max_trigger_level: max trigger level supported by the TMU - * @non_hw_trigger_levels: number of defined non-hardware trigger levels * @gain: gain of amplifier in the positive-TC generator block * 0 < gain <= 15 * @reference_voltage: reference voltage of amplifier @@ -86,24 +50,12 @@ enum soc_type { * @efuse_value: platform defined fuse value * @min_efuse_value: minimum valid trimming data * @max_efuse_value: maximum valid trimming data - * @first_point_trim: temp value of the first point trimming - * @second_point_trim: temp value of the second point trimming * @default_temp_offset: default temperature offset in case of no trimming * @cal_type: calibration type for temperature - * @freq_clip_table: Table representing frequency reduction percentage. - * @freq_tab_count: Count of the above table as frequency reduction may - * applicable to only some of the trigger levels. * * This structure is required for configuration of exynos_tmu driver. */ struct exynos_tmu_platform_data { - u8 threshold; - u8 threshold_falling; - u8 trigger_levels[MAX_TRIP_COUNT]; - enum trigger_type trigger_type[MAX_TRIP_COUNT]; - bool trigger_enable[MAX_TRIP_COUNT]; - u8 max_trigger_level; - u8 non_hw_trigger_levels; u8 gain; u8 reference_voltage; u8 noise_cancel_mode; @@ -115,30 +67,9 @@ struct exynos_tmu_platform_data { u8 second_point_trim; u8 default_temp_offset; - enum calibration_type cal_type; enum soc_type type; - struct freq_clip_table freq_tab[4]; - unsigned int freq_tab_count; -}; - -/** - * struct exynos_tmu_init_data - * @tmu_count: number of TMU instances. - * @tmu_data: platform data of all TMU instances. - * This structure is required to store data for multi-instance exynos tmu - * driver. - */ -struct exynos_tmu_init_data { - int tmu_count; - struct exynos_tmu_platform_data tmu_data[]; + u32 cal_type; + u32 cal_mode; }; -extern struct exynos_tmu_init_data const exynos3250_default_tmu_data; -extern struct exynos_tmu_init_data const exynos4210_default_tmu_data; -extern struct exynos_tmu_init_data const exynos4412_default_tmu_data; -extern struct exynos_tmu_init_data const exynos5250_default_tmu_data; -extern struct exynos_tmu_init_data const exynos5260_default_tmu_data; -extern struct exynos_tmu_init_data const exynos5420_default_tmu_data; -extern struct exynos_tmu_init_data const exynos5440_default_tmu_data; - #endif /* _EXYNOS_TMU_H */ diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c deleted file mode 100644 index b23910069f68..000000000000 --- a/drivers/thermal/samsung/exynos_tmu_data.c +++ /dev/null @@ -1,264 +0,0 @@ -/* - * exynos_tmu_data.c - Samsung EXYNOS tmu data file - * - * Copyright (C) 2013 Samsung Electronics - * Amit Daniel Kachhap <amit.daniel@samsung.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#include "exynos_thermal_common.h" -#include "exynos_tmu.h" - -struct exynos_tmu_init_data const exynos4210_default_tmu_data = { - .tmu_data = { - { - .threshold = 80, - .trigger_levels[0] = 5, - .trigger_levels[1] = 20, - .trigger_levels[2] = 30, - .trigger_enable[0] = true, - .trigger_enable[1] = true, - .trigger_enable[2] = true, - .trigger_enable[3] = false, - .trigger_type[0] = THROTTLE_ACTIVE, - .trigger_type[1] = THROTTLE_ACTIVE, - .trigger_type[2] = SW_TRIP, - .max_trigger_level = 4, - .non_hw_trigger_levels = 3, - .gain = 15, - .reference_voltage = 7, - .cal_type = TYPE_ONE_POINT_TRIMMING, - .min_efuse_value = 40, - .max_efuse_value = 100, - .first_point_trim = 25, - .second_point_trim = 85, - .default_temp_offset = 50, - .freq_tab[0] = { - .freq_clip_max = 800 * 1000, - .temp_level = 85, - }, - .freq_tab[1] = { - .freq_clip_max = 200 * 1000, - .temp_level = 100, - }, - .freq_tab_count = 2, - .type = SOC_ARCH_EXYNOS4210, - }, - }, - .tmu_count = 1, -}; - -#define EXYNOS3250_TMU_DATA \ - .threshold_falling = 10, \ - .trigger_levels[0] = 70, \ - .trigger_levels[1] = 95, \ - .trigger_levels[2] = 110, \ - .trigger_levels[3] = 120, \ - .trigger_enable[0] = true, \ - .trigger_enable[1] = true, \ - .trigger_enable[2] = true, \ - .trigger_enable[3] = false, \ - .trigger_type[0] = THROTTLE_ACTIVE, \ - .trigger_type[1] = THROTTLE_ACTIVE, \ - .trigger_type[2] = SW_TRIP, \ - .trigger_type[3] = HW_TRIP, \ - .max_trigger_level = 4, \ - .non_hw_trigger_levels = 3, \ - .gain = 8, \ - .reference_voltage = 16, \ - .noise_cancel_mode = 4, \ - .cal_type = TYPE_TWO_POINT_TRIMMING, \ - .efuse_value = 55, \ - .min_efuse_value = 40, \ - .max_efuse_value = 100, \ - .first_point_trim = 25, \ - .second_point_trim = 85, \ - .default_temp_offset = 50, \ - .freq_tab[0] = { \ - .freq_clip_max = 800 * 1000, \ - .temp_level = 70, \ - }, \ - .freq_tab[1] = { \ - .freq_clip_max = 400 * 1000, \ - .temp_level = 95, \ - }, \ - .freq_tab_count = 2 - -struct exynos_tmu_init_data const exynos3250_default_tmu_data = { - .tmu_data = { - { - EXYNOS3250_TMU_DATA, - .type = SOC_ARCH_EXYNOS3250, - }, - }, - .tmu_count = 1, -}; - -#define EXYNOS4412_TMU_DATA \ - .threshold_falling = 10, \ - .trigger_levels[0] = 70, \ - .trigger_levels[1] = 95, \ - .trigger_levels[2] = 110, \ - .trigger_levels[3] = 120, \ - .trigger_enable[0] = true, \ - .trigger_enable[1] = true, \ - .trigger_enable[2] = true, \ - .trigger_enable[3] = false, \ - .trigger_type[0] = THROTTLE_ACTIVE, \ - .trigger_type[1] = THROTTLE_ACTIVE, \ - .trigger_type[2] = SW_TRIP, \ - .trigger_type[3] = HW_TRIP, \ - .max_trigger_level = 4, \ - .non_hw_trigger_levels = 3, \ - .gain = 8, \ - .reference_voltage = 16, \ - .noise_cancel_mode = 4, \ - .cal_type = TYPE_ONE_POINT_TRIMMING, \ - .efuse_value = 55, \ - .min_efuse_value = 40, \ - .max_efuse_value = 100, \ - .first_point_trim = 25, \ - .second_point_trim = 85, \ - .default_temp_offset = 50, \ - .freq_tab[0] = { \ - .freq_clip_max = 1400 * 1000, \ - .temp_level = 70, \ - }, \ - .freq_tab[1] = { \ - .freq_clip_max = 400 * 1000, \ - .temp_level = 95, \ - }, \ - .freq_tab_count = 2 - -struct exynos_tmu_init_data const exynos4412_default_tmu_data = { - .tmu_data = { - { - EXYNOS4412_TMU_DATA, - .type = SOC_ARCH_EXYNOS4412, - }, - }, - .tmu_count = 1, -}; - -struct exynos_tmu_init_data const exynos5250_default_tmu_data = { - .tmu_data = { - { - EXYNOS4412_TMU_DATA, - .type = SOC_ARCH_EXYNOS5250, - }, - }, - .tmu_count = 1, -}; - -#define __EXYNOS5260_TMU_DATA \ - .threshold_falling = 10, \ - .trigger_levels[0] = 85, \ - .trigger_levels[1] = 103, \ - .trigger_levels[2] = 110, \ - .trigger_levels[3] = 120, \ - .trigger_enable[0] = true, \ - .trigger_enable[1] = true, \ - .trigger_enable[2] = true, \ - .trigger_enable[3] = false, \ - .trigger_type[0] = THROTTLE_ACTIVE, \ - .trigger_type[1] = THROTTLE_ACTIVE, \ - .trigger_type[2] = SW_TRIP, \ - .trigger_type[3] = HW_TRIP, \ - .max_trigger_level = 4, \ - .non_hw_trigger_levels = 3, \ - .gain = 8, \ - .reference_voltage = 16, \ - .noise_cancel_mode = 4, \ - .cal_type = TYPE_ONE_POINT_TRIMMING, \ - .efuse_value = 55, \ - .min_efuse_value = 40, \ - .max_efuse_value = 100, \ - .first_point_trim = 25, \ - .second_point_trim = 85, \ - .default_temp_offset = 50, \ - .freq_tab[0] = { \ - .freq_clip_max = 800 * 1000, \ - .temp_level = 85, \ - }, \ - .freq_tab[1] = { \ - .freq_clip_max = 200 * 1000, \ - .temp_level = 103, \ - }, \ - .freq_tab_count = 2, \ - -#define EXYNOS5260_TMU_DATA \ - __EXYNOS5260_TMU_DATA \ - .type = SOC_ARCH_EXYNOS5260 - -struct exynos_tmu_init_data const exynos5260_default_tmu_data = { - .tmu_data = { - { EXYNOS5260_TMU_DATA }, - { EXYNOS5260_TMU_DATA }, - { EXYNOS5260_TMU_DATA }, - { EXYNOS5260_TMU_DATA }, - { EXYNOS5260_TMU_DATA }, - }, - .tmu_count = 5, -}; - -#define EXYNOS5420_TMU_DATA \ - __EXYNOS5260_TMU_DATA \ - .type = SOC_ARCH_EXYNOS5420 - -#define EXYNOS5420_TMU_DATA_SHARED \ - __EXYNOS5260_TMU_DATA \ - .type = SOC_ARCH_EXYNOS5420_TRIMINFO - -struct exynos_tmu_init_data const exynos5420_default_tmu_data = { - .tmu_data = { - { EXYNOS5420_TMU_DATA }, - { EXYNOS5420_TMU_DATA }, - { EXYNOS5420_TMU_DATA_SHARED }, - { EXYNOS5420_TMU_DATA_SHARED }, - { EXYNOS5420_TMU_DATA_SHARED }, - }, - .tmu_count = 5, -}; - -#define EXYNOS5440_TMU_DATA \ - .trigger_levels[0] = 100, \ - .trigger_levels[4] = 105, \ - .trigger_enable[0] = 1, \ - .trigger_type[0] = SW_TRIP, \ - .trigger_type[4] = HW_TRIP, \ - .max_trigger_level = 5, \ - .non_hw_trigger_levels = 1, \ - .gain = 5, \ - .reference_voltage = 16, \ - .noise_cancel_mode = 4, \ - .cal_type = TYPE_ONE_POINT_TRIMMING, \ - .efuse_value = 0x5b2d, \ - .min_efuse_value = 16, \ - .max_efuse_value = 76, \ - .first_point_trim = 25, \ - .second_point_trim = 70, \ - .default_temp_offset = 25, \ - .type = SOC_ARCH_EXYNOS5440 - -struct exynos_tmu_init_data const exynos5440_default_tmu_data = { - .tmu_data = { - { EXYNOS5440_TMU_DATA } , - { EXYNOS5440_TMU_DATA } , - { EXYNOS5440_TMU_DATA } , - }, - .tmu_count = 3, -}; diff --git a/drivers/thermal/step_wise.c b/drivers/thermal/step_wise.c index fdd1f523a1ed..5a0f12d08e8b 100644 --- a/drivers/thermal/step_wise.c +++ b/drivers/thermal/step_wise.c @@ -45,7 +45,7 @@ * c. if the trend is THERMAL_TREND_RAISE_FULL, do nothing * d. if the trend is THERMAL_TREND_DROP_FULL, use lower limit, * if the cooling state already equals lower limit, - * deactive the thermal instance + * deactivate the thermal instance */ static unsigned long get_target_state(struct thermal_instance *instance, enum thermal_trend trend, bool throttle) @@ -169,7 +169,7 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip) } /** - * step_wise_throttle - throttles devices asscciated with the given zone + * step_wise_throttle - throttles devices associated with the given zone * @tz - thermal_zone_device * @trip - the trip point * @trip_type - type of the trip point diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 87e0b0782023..48491d1a81d6 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -1759,11 +1759,7 @@ int thermal_generate_netlink_event(struct thermal_zone_device *tz, thermal_event->event = event; /* send multicast genetlink message */ - result = genlmsg_end(skb, msg_header); - if (result < 0) { - nlmsg_free(skb); - return result; - } + genlmsg_end(skb, msg_header); result = genlmsg_multicast(&thermal_event_genl_family, skb, 0, 0, GFP_ATOMIC); diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h index 9083e7520623..0531c752fbbb 100644 --- a/drivers/thermal/thermal_core.h +++ b/drivers/thermal/thermal_core.h @@ -91,7 +91,7 @@ int of_parse_thermal_zones(void); void of_thermal_destroy_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 * const +const struct thermal_trip * of_thermal_get_trip_points(struct thermal_zone_device *); #else static inline int of_parse_thermal_zones(void) { return 0; } @@ -105,7 +105,7 @@ static inline bool of_thermal_is_trip_valid(struct thermal_zone_device *tz, { return 0; } -static inline const struct thermal_trip * const +static inline const struct thermal_trip * of_thermal_get_trip_points(struct thermal_zone_device *tz) { return NULL; |