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watchdog: imx7ulp: Use devm_clk_get_enabled() helper 

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/f23a2cf84958adca255b82fd688e7cee0461760f.1672484376.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 2022-12-31 11:59:57 +01:00 committed by Wim Van Sebroeck
parent 0a03207205
commit f3a0dd6489
1 changed files with 1 additions and 14 deletions
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15
drivers/watchdog/imx7ulp_wdt.c
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@ -299,11 +299,6 @@ static int imx7ulp_wdt_init(struct imx7ulp_wdt_device *wdt, unsigned int timeout
return ret;
}
static void imx7ulp_wdt_action(void *data)
{
clk_disable_unprepare(data);
}
static int imx7ulp_wdt_probe(struct platform_device *pdev)
{
struct imx7ulp_wdt_device *imx7ulp_wdt;
@ -321,7 +316,7 @@ static int imx7ulp_wdt_probe(struct platform_device *pdev)
if (IS_ERR(imx7ulp_wdt->base))
return PTR_ERR(imx7ulp_wdt->base);
imx7ulp_wdt->clk = devm_clk_get(dev, NULL);
imx7ulp_wdt->clk = devm_clk_get_enabled(dev, NULL);
if (IS_ERR(imx7ulp_wdt->clk)) {
dev_err(dev, "Failed to get watchdog clock\n");
return PTR_ERR(imx7ulp_wdt->clk);
@ -336,14 +331,6 @@ static int imx7ulp_wdt_probe(struct platform_device *pdev)
dev_info(dev, "imx7ulp wdt probe\n");
}
ret = clk_prepare_enable(imx7ulp_wdt->clk);
if (ret)
return ret;
ret = devm_add_action_or_reset(dev, imx7ulp_wdt_action, imx7ulp_wdt->clk);
if (ret)
return ret;
wdog = &imx7ulp_wdt->wdd;
wdog->info = &imx7ulp_wdt_info;
wdog->ops = &imx7ulp_wdt_ops;