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-rw-r--r--drivers/hwmon/aspeed-pwm-tacho.c7
-rw-r--r--drivers/hwmon/coretemp.c42
-rw-r--r--drivers/hwmon/gigabyte_waterforce.c2
-rw-r--r--drivers/hwmon/npcm750-pwm-fan.c7
-rw-r--r--drivers/hwmon/pmbus/mp2975.c16
-rw-r--r--drivers/hwmon/pwm-fan.c8
6 files changed, 55 insertions, 27 deletions
diff --git a/drivers/hwmon/aspeed-pwm-tacho.c b/drivers/hwmon/aspeed-pwm-tacho.c
index f6e1e55e8292..4acc1858d8ac 100644
--- a/drivers/hwmon/aspeed-pwm-tacho.c
+++ b/drivers/hwmon/aspeed-pwm-tacho.c
@@ -195,6 +195,8 @@ struct aspeed_pwm_tacho_data {
u8 fan_tach_ch_source[MAX_ASPEED_FAN_TACH_CHANNELS];
struct aspeed_cooling_device *cdev[8];
const struct attribute_group *groups[3];
+ /* protects access to shared ASPEED_PTCR_RESULT */
+ struct mutex tach_lock;
};
enum type { TYPEM, TYPEN, TYPEO };
@@ -529,6 +531,8 @@ static int aspeed_get_fan_tach_ch_rpm(struct aspeed_pwm_tacho_data *priv,
u8 fan_tach_ch_source, type, mode, both;
int ret;
+ mutex_lock(&priv->tach_lock);
+
regmap_write(priv->regmap, ASPEED_PTCR_TRIGGER, 0);
regmap_write(priv->regmap, ASPEED_PTCR_TRIGGER, 0x1 << fan_tach_ch);
@@ -546,6 +550,8 @@ static int aspeed_get_fan_tach_ch_rpm(struct aspeed_pwm_tacho_data *priv,
ASPEED_RPM_STATUS_SLEEP_USEC,
usec);
+ mutex_unlock(&priv->tach_lock);
+
/* return -ETIMEDOUT if we didn't get an answer. */
if (ret)
return ret;
@@ -915,6 +921,7 @@ static int aspeed_pwm_tacho_probe(struct platform_device *pdev)
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
+ mutex_init(&priv->tach_lock);
priv->regmap = devm_regmap_init(dev, NULL, (__force void *)regs,
&aspeed_pwm_tacho_regmap_config);
if (IS_ERR(priv->regmap))
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index ba82d1e79c13..b8fc8d1ef20d 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -41,7 +41,7 @@ MODULE_PARM_DESC(tjmax, "TjMax value in degrees Celsius");
#define PKG_SYSFS_ATTR_NO 1 /* Sysfs attribute for package temp */
#define BASE_SYSFS_ATTR_NO 2 /* Sysfs Base attr no for coretemp */
-#define NUM_REAL_CORES 128 /* Number of Real cores per cpu */
+#define NUM_REAL_CORES 512 /* Number of Real cores per cpu */
#define CORETEMP_NAME_LENGTH 28 /* String Length of attrs */
#define MAX_CORE_ATTRS 4 /* Maximum no of basic attrs */
#define TOTAL_ATTRS (MAX_CORE_ATTRS + 1)
@@ -419,7 +419,7 @@ static ssize_t show_temp(struct device *dev,
}
static int create_core_attrs(struct temp_data *tdata, struct device *dev,
- int attr_no)
+ int index)
{
int i;
static ssize_t (*const rd_ptr[TOTAL_ATTRS]) (struct device *dev,
@@ -431,13 +431,20 @@ static int create_core_attrs(struct temp_data *tdata, struct device *dev,
};
for (i = 0; i < tdata->attr_size; i++) {
+ /*
+ * We map the attr number to core id of the CPU
+ * The attr number is always core id + 2
+ * The Pkgtemp will always show up as temp1_*, if available
+ */
+ int attr_no = tdata->is_pkg_data ? 1 : tdata->cpu_core_id + 2;
+
snprintf(tdata->attr_name[i], CORETEMP_NAME_LENGTH,
"temp%d_%s", attr_no, suffixes[i]);
sysfs_attr_init(&tdata->sd_attrs[i].dev_attr.attr);
tdata->sd_attrs[i].dev_attr.attr.name = tdata->attr_name[i];
tdata->sd_attrs[i].dev_attr.attr.mode = 0444;
tdata->sd_attrs[i].dev_attr.show = rd_ptr[i];
- tdata->sd_attrs[i].index = attr_no;
+ tdata->sd_attrs[i].index = index;
tdata->attrs[i] = &tdata->sd_attrs[i].dev_attr.attr;
}
tdata->attr_group.attrs = tdata->attrs;
@@ -495,30 +502,25 @@ static int create_core_data(struct platform_device *pdev, unsigned int cpu,
struct platform_data *pdata = platform_get_drvdata(pdev);
struct cpuinfo_x86 *c = &cpu_data(cpu);
u32 eax, edx;
- int err, index, attr_no;
+ int err, index;
if (!housekeeping_cpu(cpu, HK_TYPE_MISC))
return 0;
/*
- * Find attr number for sysfs:
- * We map the attr number to core id of the CPU
- * The attr number is always core id + 2
- * The Pkgtemp will always show up as temp1_*, if available
+ * Get the index of tdata in pdata->core_data[]
+ * tdata for package: pdata->core_data[1]
+ * tdata for core: pdata->core_data[2] .. pdata->core_data[NUM_REAL_CORES + 1]
*/
if (pkg_flag) {
- attr_no = PKG_SYSFS_ATTR_NO;
+ index = PKG_SYSFS_ATTR_NO;
} else {
- index = ida_alloc(&pdata->ida, GFP_KERNEL);
+ index = ida_alloc_max(&pdata->ida, NUM_REAL_CORES - 1, GFP_KERNEL);
if (index < 0)
return index;
- pdata->cpu_map[index] = topology_core_id(cpu);
- attr_no = index + BASE_SYSFS_ATTR_NO;
- }
- if (attr_no > MAX_CORE_DATA - 1) {
- err = -ERANGE;
- goto ida_free;
+ pdata->cpu_map[index] = topology_core_id(cpu);
+ index += BASE_SYSFS_ATTR_NO;
}
tdata = init_temp_data(cpu, pkg_flag);
@@ -544,20 +546,20 @@ static int create_core_data(struct platform_device *pdev, unsigned int cpu,
if (get_ttarget(tdata, &pdev->dev) >= 0)
tdata->attr_size++;
- pdata->core_data[attr_no] = tdata;
+ pdata->core_data[index] = tdata;
/* Create sysfs interfaces */
- err = create_core_attrs(tdata, pdata->hwmon_dev, attr_no);
+ err = create_core_attrs(tdata, pdata->hwmon_dev, index);
if (err)
goto exit_free;
return 0;
exit_free:
- pdata->core_data[attr_no] = NULL;
+ pdata->core_data[index] = NULL;
kfree(tdata);
ida_free:
if (!pkg_flag)
- ida_free(&pdata->ida, index);
+ ida_free(&pdata->ida, index - BASE_SYSFS_ATTR_NO);
return err;
}
diff --git a/drivers/hwmon/gigabyte_waterforce.c b/drivers/hwmon/gigabyte_waterforce.c
index 85e523775714..8129d7b3ceaf 100644
--- a/drivers/hwmon/gigabyte_waterforce.c
+++ b/drivers/hwmon/gigabyte_waterforce.c
@@ -146,7 +146,7 @@ static int waterforce_get_status(struct waterforce_data *priv)
/* Send command for getting status */
ret = waterforce_write_expanded(priv, get_status_cmd, GET_STATUS_CMD_LENGTH);
if (ret < 0)
- return ret;
+ goto unlock_and_return;
ret = wait_for_completion_interruptible_timeout(&priv->status_report_received,
msecs_to_jiffies(STATUS_VALIDITY));
diff --git a/drivers/hwmon/npcm750-pwm-fan.c b/drivers/hwmon/npcm750-pwm-fan.c
index d9733da8ea34..904816abb7c4 100644
--- a/drivers/hwmon/npcm750-pwm-fan.c
+++ b/drivers/hwmon/npcm750-pwm-fan.c
@@ -195,6 +195,7 @@ struct npcm7xx_cooling_device {
struct npcm7xx_pwm_fan_data {
void __iomem *pwm_base;
void __iomem *fan_base;
+ int pwm_modules;
unsigned long pwm_clk_freq;
unsigned long fan_clk_freq;
struct clk *pwm_clk;
@@ -710,7 +711,7 @@ static u32 npcm7xx_pwm_init(struct npcm7xx_pwm_fan_data *data)
/* Setting PWM Prescale Register value register to both modules */
prescale_val |= (prescale_val << NPCM7XX_PWM_PRESCALE_SHIFT_CH01);
- for (m = 0; m < NPCM7XX_PWM_MAX_MODULES ; m++) {
+ for (m = 0; m < data->pwm_modules; m++) {
iowrite32(prescale_val, NPCM7XX_PWM_REG_PR(data->pwm_base, m));
iowrite32(NPCM7XX_PWM_PRESCALE2_DEFAULT,
NPCM7XX_PWM_REG_CSR(data->pwm_base, m));
@@ -946,6 +947,8 @@ static int npcm7xx_pwm_fan_probe(struct platform_device *pdev)
if (!data->info)
return -EINVAL;
+ data->pwm_modules = data->info->pwm_max_channel / NPCM7XX_PWM_MAX_CHN_NUM_IN_A_MODULE;
+
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pwm");
if (!res) {
dev_err(dev, "pwm resource not found\n");
@@ -983,7 +986,7 @@ static int npcm7xx_pwm_fan_probe(struct platform_device *pdev)
output_freq = npcm7xx_pwm_init(data);
npcm7xx_fan_init(data);
- for (cnt = 0; cnt < NPCM7XX_PWM_MAX_MODULES ; cnt++)
+ for (cnt = 0; cnt < data->pwm_modules; cnt++)
mutex_init(&data->pwm_lock[cnt]);
for (i = 0; i < NPCM7XX_FAN_MAX_MODULE; i++) {
diff --git a/drivers/hwmon/pmbus/mp2975.c b/drivers/hwmon/pmbus/mp2975.c
index b9bb469e2d8f..e5fa10b3b8bc 100644
--- a/drivers/hwmon/pmbus/mp2975.c
+++ b/drivers/hwmon/pmbus/mp2975.c
@@ -126,6 +126,21 @@ static const struct regulator_desc __maybe_unused mp2975_reg_desc[] = {
#define to_mp2975_data(x) container_of(x, struct mp2975_data, info)
+static int mp2975_read_byte_data(struct i2c_client *client, int page, int reg)
+{
+ switch (reg) {
+ case PMBUS_VOUT_MODE:
+ /*
+ * Report direct format as configured by MFR_DC_LOOP_CTRL.
+ * Unlike on MP2971/MP2973 the reported VOUT_MODE isn't automatically
+ * internally updated, but always reads as PB_VOUT_MODE_VID.
+ */
+ return PB_VOUT_MODE_DIRECT;
+ default:
+ return -ENODATA;
+ }
+}
+
static int
mp2975_read_word_helper(struct i2c_client *client, int page, int phase, u8 reg,
u16 mask)
@@ -869,6 +884,7 @@ static struct pmbus_driver_info mp2975_info = {
PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_POUT |
PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT | PMBUS_PHASE_VIRTUAL,
+ .read_byte_data = mp2975_read_byte_data,
.read_word_data = mp2975_read_word_data,
#if IS_ENABLED(CONFIG_SENSORS_MP2975_REGULATOR)
.num_regulators = 1,
diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c
index 6e4516c2ab89..b67bc9e833c0 100644
--- a/drivers/hwmon/pwm-fan.c
+++ b/drivers/hwmon/pwm-fan.c
@@ -151,7 +151,7 @@ static int pwm_fan_power_on(struct pwm_fan_ctx *ctx)
}
state->enabled = true;
- ret = pwm_apply_state(ctx->pwm, state);
+ ret = pwm_apply_might_sleep(ctx->pwm, state);
if (ret) {
dev_err(ctx->dev, "failed to enable PWM\n");
goto disable_regulator;
@@ -181,7 +181,7 @@ static int pwm_fan_power_off(struct pwm_fan_ctx *ctx)
state->enabled = false;
state->duty_cycle = 0;
- ret = pwm_apply_state(ctx->pwm, state);
+ ret = pwm_apply_might_sleep(ctx->pwm, state);
if (ret) {
dev_err(ctx->dev, "failed to disable PWM\n");
return ret;
@@ -207,7 +207,7 @@ static int __set_pwm(struct pwm_fan_ctx *ctx, unsigned long pwm)
period = state->period;
state->duty_cycle = DIV_ROUND_UP(pwm * (period - 1), MAX_PWM);
- ret = pwm_apply_state(ctx->pwm, state);
+ ret = pwm_apply_might_sleep(ctx->pwm, state);
if (ret)
return ret;
ret = pwm_fan_power_on(ctx);
@@ -278,7 +278,7 @@ static int pwm_fan_update_enable(struct pwm_fan_ctx *ctx, long val)
state,
&enable_regulator);
- pwm_apply_state(ctx->pwm, state);
+ pwm_apply_might_sleep(ctx->pwm, state);
pwm_fan_switch_power(ctx, enable_regulator);
pwm_fan_update_state(ctx, 0);
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.