From 0dee25ebc7d315d9ee785ea5f457ae980979ea89 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Mon, 8 Aug 2022 08:06:40 +0200 Subject: hwmon: Make use of devm_clk_get_enabled() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Several drivers manually register a devm handler to disable their clk. Convert them to devm_clk_get_enabled(). Acked-by: Guenter Roeck Reviewed-by: Nuno Sá Acked-by: Jonathan Cameron Signed-off-by: Uwe Kleine-König Signed-off-by: Guenter Roeck --- drivers/hwmon/axi-fan-control.c | 15 +-------------- drivers/hwmon/ltc2947-core.c | 17 +---------------- drivers/hwmon/mr75203.c | 26 +------------------------- 3 files changed, 3 insertions(+), 55 deletions(-) (limited to 'drivers/hwmon') diff --git a/drivers/hwmon/axi-fan-control.c b/drivers/hwmon/axi-fan-control.c index 96c4a5c45291..6724e0dd3088 100644 --- a/drivers/hwmon/axi-fan-control.c +++ b/drivers/hwmon/axi-fan-control.c @@ -394,11 +394,6 @@ 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), @@ -478,20 +473,12 @@ static int axi_fan_control_probe(struct platform_device *pdev) if (IS_ERR(ctl->base)) return PTR_ERR(ctl->base); - clk = devm_clk_get(&pdev->dev, NULL); + clk = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(clk)) { dev_err(&pdev->dev, "clk_get failed with %ld\n", PTR_ERR(clk)); 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; diff --git a/drivers/hwmon/ltc2947-core.c b/drivers/hwmon/ltc2947-core.c index 5423466de697..626f5bf2c9c7 100644 --- a/drivers/hwmon/ltc2947-core.c +++ b/drivers/hwmon/ltc2947-core.c @@ -956,13 +956,6 @@ static struct attribute *ltc2947_attrs[] = { }; ATTRIBUTE_GROUPS(ltc2947); -static void ltc2947_clk_disable(void *data) -{ - struct clk *extclk = data; - - clk_disable_unprepare(extclk); -} - static int ltc2947_setup(struct ltc2947_data *st) { int ret; @@ -989,7 +982,7 @@ static int ltc2947_setup(struct ltc2947_data *st) return ret; /* check external clock presence */ - extclk = devm_clk_get_optional(st->dev, NULL); + extclk = devm_clk_get_optional_enabled(st->dev, NULL); if (IS_ERR(extclk)) return dev_err_probe(st->dev, PTR_ERR(extclk), "Failed to get external clock\n"); @@ -1007,14 +1000,6 @@ static int ltc2947_setup(struct ltc2947_data *st) return -EINVAL; } - ret = clk_prepare_enable(extclk); - if (ret) - return ret; - - ret = devm_add_action_or_reset(st->dev, ltc2947_clk_disable, - extclk); - if (ret) - return ret; /* as in table 1 of the datasheet */ if (rate_hz >= LTC2947_CLK_MIN && rate_hz <= 1000000) pre = 0; diff --git a/drivers/hwmon/mr75203.c b/drivers/hwmon/mr75203.c index 01f63dc1a250..394a4c7e46ab 100644 --- a/drivers/hwmon/mr75203.c +++ b/drivers/hwmon/mr75203.c @@ -610,24 +610,6 @@ static int pvt_get_regmap(struct platform_device *pdev, char *reg_name, return 0; } -static void pvt_clk_disable(void *data) -{ - struct pvt_device *pvt = data; - - clk_disable_unprepare(pvt->clk); -} - -static int pvt_clk_enable(struct device *dev, struct pvt_device *pvt) -{ - int ret; - - ret = clk_prepare_enable(pvt->clk); - if (ret) - return ret; - - return devm_add_action_or_reset(dev, pvt_clk_disable, pvt); -} - static void pvt_reset_control_assert(void *data) { struct pvt_device *pvt = data; @@ -799,16 +781,10 @@ static int mr75203_probe(struct platform_device *pdev) if (ret) return ret; - pvt->clk = devm_clk_get(dev, NULL); + pvt->clk = devm_clk_get_enabled(dev, NULL); if (IS_ERR(pvt->clk)) return dev_err_probe(dev, PTR_ERR(pvt->clk), "failed to get clock\n"); - ret = pvt_clk_enable(dev, pvt); - if (ret) { - dev_err(dev, "failed to enable clock\n"); - return ret; - } - pvt->rst = devm_reset_control_get_optional_exclusive(dev, NULL); if (IS_ERR(pvt->rst)) return dev_err_probe(dev, PTR_ERR(pvt->rst), -- cgit v1.2.3