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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-10-23 00:58:12 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-10-23 00:58:12 +0100 |
| commit | b8e445b6895cfe76c5959a7135a3216703fe32d4 (patch) | |
| tree | 285797138e87a67c25aa173de48a4cf3d18d6a61 /drivers/hwmon/pwm-fan.c | |
| parent | cff229491af5df946781edfbeafd43e9cf66a3b4 (diff) | |
| parent | e7c6a55606b5c46b449d76588968b4d8caae903f (diff) | |
Merge tag 'hwmon-for-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
- Add support for trace events to hwmon core
- Add support for NCT6797D, NCT6798D, MAX31725/6, LTM4686
- Support all AMD Family 15h Model 6xh and Model 7xh processors in
k10temp driver
- Convert ina3221 driver to _info API
- Fixes, cleanups, and improvements in various drivers
* tag 'hwmon-for-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (46 commits)
hwmon: (pmbus) Fix page count auto-detection.
hwmon: (pmbus) remove redundant 'default n' from Kconfig
hwmon: (core) Add trace events to _attr_show/store functions
hwmon: (ina3221) Use _info API to register hwmon device
hwmon: (npcm-750-pwm-fan) Change initial pwm target to 255
hwmon: (ina3221) Validate shunt resistor value from DT
hwmon: (tmp421) make const array 'names' static
hwmon: (core) Add hwmon_in_enable attribute
hwmon: (ina3221) mark PM functions as __maybe_unused
hwmon: (ina3221) Read channel input source info from DT
dt-bindings: hwmon: Add ina3221 documentation
hwmon: (ina3221) Add suspend and resume functions
hwmon: (ina3221) Fix INA3221_CONFIG_MODE macros
hwmon: (ina3221) Add INA3221_CONFIG to volatile_table
MAINTAINERS: Update PMBUS maintainer entry
hwmon: (pwm-fan) Set fan speed to 0 on suspend
hwmon: (pwm-fan) Silence error on probe deferral
hwmon: (scpi-hwmon) remove redundant continue
hwmon: (nct6775) Add support for NCT6798D
hwmon: (nct6775) Add support for NCT6797D
...
Diffstat (limited to 'drivers/hwmon/pwm-fan.c')
| -rw-r--r-- | drivers/hwmon/pwm-fan.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c index 7838af58f92d..7da6a160d45a 100644 --- a/drivers/hwmon/pwm-fan.c +++ b/drivers/hwmon/pwm-fan.c @@ -221,8 +221,12 @@ static int pwm_fan_probe(struct platform_device *pdev) ctx->pwm = devm_of_pwm_get(&pdev->dev, pdev->dev.of_node, NULL); if (IS_ERR(ctx->pwm)) { - dev_err(&pdev->dev, "Could not get PWM\n"); - return PTR_ERR(ctx->pwm); + ret = PTR_ERR(ctx->pwm); + + if (ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "Could not get PWM: %d\n", ret); + + return ret; } platform_set_drvdata(pdev, ctx); @@ -290,9 +294,19 @@ static int pwm_fan_remove(struct platform_device *pdev) static int pwm_fan_suspend(struct device *dev) { struct pwm_fan_ctx *ctx = dev_get_drvdata(dev); + struct pwm_args args; + int ret; + + pwm_get_args(ctx->pwm, &args); + + if (ctx->pwm_value) { + ret = pwm_config(ctx->pwm, 0, args.period); + if (ret < 0) + return ret; - if (ctx->pwm_value) pwm_disable(ctx->pwm); + } + return 0; } |