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authorsaturneric <[email protected]>2025-03-30 23:28:28 +0000
committersaturneric <[email protected]>2025-03-30 23:28:28 +0000
commit4005cedb116bc25be160fd9f749c1c8f3059057b (patch)
treece3ece0cef561c6e969eca633b2cdb7360255714 /drivers/hwmon/pwm-fan.c
parentMerge remote-tracking UNTIL 14. Jan 2025 (diff)
parentLinux 6.14 (diff)
downloadkernel-4005cedb116bc25be160fd9f749c1c8f3059057b.tar.gz
kernel-4005cedb116bc25be160fd9f749c1c8f3059057b.zip
Merge remote-tracking UNTIL 24. Mar 2025
Diffstat (limited to 'drivers/hwmon/pwm-fan.c')
-rw-r--r--drivers/hwmon/pwm-fan.c26
1 files changed, 16 insertions, 10 deletions
diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c
index 0c304ffdd175..dc019c15635a 100644
--- a/drivers/hwmon/pwm-fan.c
+++ b/drivers/hwmon/pwm-fan.c
@@ -509,7 +509,7 @@ static int pwm_fan_probe(struct platform_device *pdev)
struct device *hwmon;
int ret;
const struct hwmon_channel_info **channels;
- u32 pwm_min_from_stopped = 0;
+ u32 initial_pwm, pwm_min_from_stopped = 0;
u32 *fan_channel_config;
int channel_count = 1; /* We always have a PWM channel. */
int i;
@@ -557,11 +557,21 @@ static int pwm_fan_probe(struct platform_device *pdev)
ctx->enable_mode = pwm_disable_reg_enable;
+ ret = pwm_fan_get_cooling_data(dev, ctx);
+ if (ret)
+ return ret;
+
+ /* use maximum cooling level if provided */
+ if (ctx->pwm_fan_cooling_levels)
+ initial_pwm = ctx->pwm_fan_cooling_levels[ctx->pwm_fan_max_state];
+ else
+ initial_pwm = MAX_PWM;
+
/*
* Set duty cycle to maximum allowed and enable PWM output as well as
* the regulator. In case of error nothing is changed
*/
- ret = set_pwm(ctx, MAX_PWM);
+ ret = set_pwm(ctx, initial_pwm);
if (ret) {
dev_err(dev, "Failed to configure PWM: %d\n", ret);
return ret;
@@ -677,16 +687,16 @@ static int pwm_fan_probe(struct platform_device *pdev)
channels[1] = &ctx->fan_channel;
}
- ret = of_property_read_u32(dev->of_node, "fan-stop-to-start-percent",
- &pwm_min_from_stopped);
+ ret = device_property_read_u32(dev, "fan-stop-to-start-percent",
+ &pwm_min_from_stopped);
if (!ret && pwm_min_from_stopped) {
ctx->pwm_duty_cycle_from_stopped =
DIV_ROUND_UP_ULL(pwm_min_from_stopped *
(ctx->pwm_state.period - 1),
100);
}
- ret = of_property_read_u32(dev->of_node, "fan-stop-to-start-us",
- &ctx->pwm_usec_from_stopped);
+ ret = device_property_read_u32(dev, "fan-stop-to-start-us",
+ &ctx->pwm_usec_from_stopped);
if (ret)
ctx->pwm_usec_from_stopped = 250000;
@@ -701,10 +711,6 @@ static int pwm_fan_probe(struct platform_device *pdev)
goto error;
}
- ret = pwm_fan_get_cooling_data(dev, ctx);
- if (ret)
- goto error;
-
ctx->pwm_fan_state = ctx->pwm_fan_max_state;
if (IS_ENABLED(CONFIG_THERMAL)) {
cdev = devm_thermal_of_cooling_device_register(dev,