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watchdog: rtd119x: Use devm_clk_get_enabled() helper

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The devm_clk_get_enabled() helper:
   - calls devm_clk_get()
   - calls clk_prepare_enable() and registers what is needed in order to
     call clk_disable_unprepare() when needed, as a managed resource.

This simplifies the code and avoids the need of a dedicated function used
with devm_add_action_or_reset().

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/14b521b821279bc5111dc80b55d0936c5767c737.1672418470.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
This commit is contained in:
Christophe JAILLET 2022-12-30 17:41:31 +01:00 committed by Wim Van Sebroeck
parent f3a0dd6489
commit 6cc0768ba6
1 changed files with 1 additions and 15 deletions
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16
drivers/watchdog/rtd119x_wdt.c
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@ -94,16 +94,10 @@ static const struct of_device_id rtd119x_wdt_dt_ids[] = {
{ }
};
static void rtd119x_clk_disable_unprepare(void *data)
{
clk_disable_unprepare(data);
}
static int rtd119x_wdt_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct rtd119x_watchdog_device *data;
int ret;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
@ -113,18 +107,10 @@ static int rtd119x_wdt_probe(struct platform_device *pdev)
if (IS_ERR(data->base))
return PTR_ERR(data->base);
data->clk = devm_clk_get(dev, NULL);
data->clk = devm_clk_get_enabled(dev, NULL);
if (IS_ERR(data->clk))
return PTR_ERR(data->clk);
ret = clk_prepare_enable(data->clk);
if (ret)
return ret;
ret = devm_add_action_or_reset(dev, rtd119x_clk_disable_unprepare,
data->clk);
if (ret)
return ret;
data->wdt_dev.info = &rtd119x_wdt_info;
data->wdt_dev.ops = &rtd119x_wdt_ops;
data->wdt_dev.timeout = 120;