diff options
| author |   Nuno Sá <nuno.sa@analog.com> | 2021-08-11 13:48:51 +0200 |
|---|---|---|
| committer |   Guenter Roeck <linux@roeck-us.net> | 2021-08-17 14:54:26 -0700 |
| commit | a3933625de28e730c7822d2b14f896125577abe8 (patch) | |
| tree | b89f0ddeb4cc7ee8367553f34e7a0606e88c7c5d /drivers/hwmon | |
| parent | hwmon: (pmbus/ibm-cffps) Fix write bits for LED control (diff) | |
| download | linux-dev-a3933625de28e730c7822d2b14f896125577abe8.tar.xz linux-dev-a3933625de28e730c7822d2b14f896125577abe8.zip | |
hwmon: (axi-fan-control) Make sure the clock is enabled
The core will only work if it's clock is enabled. This patch is a
minor enhancement to make sure that's the case.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210811114853.159298-2-nuno.sa@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/axi-fan-control.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/hwmon/axi-fan-control.c b/drivers/hwmon/axi-fan-control.c index e3f6b03e6764..901d1588234d 100644 --- a/drivers/hwmon/axi-fan-control.c +++ b/drivers/hwmon/axi-fan-control.c @@ -351,6 +351,11 @@ static int axi_fan_control_init(struct axi_fan_control_data *ctl, return ret; } +static void axi_fan_control_clk_disable(void *clk) +{ + clk_disable_unprepare(clk); +} + static const struct hwmon_channel_info *axi_fan_control_info[] = { HWMON_CHANNEL_INFO(pwm, HWMON_PWM_INPUT), HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT | HWMON_F_FAULT | HWMON_F_LABEL), @@ -406,6 +411,14 @@ static int axi_fan_control_probe(struct platform_device *pdev) return PTR_ERR(clk); } + ret = clk_prepare_enable(clk); + if (ret) + return ret; + + ret = devm_add_action_or_reset(&pdev->dev, axi_fan_control_clk_disable, clk); + if (ret) + return ret; + ctl->clk_rate = clk_get_rate(clk); if (!ctl->clk_rate) return -EINVAL; |