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Subject[PATCH] watchdog: davinci: Use devm_clk_get_enabled() helper
Date
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>
---
drivers/watchdog/davinci_wdt.c | 18 +-----------------
1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
index 584a56893b81..5f2184bda7b2 100644
--- a/drivers/watchdog/davinci_wdt.c
+++ b/drivers/watchdog/davinci_wdt.c
@@ -189,14 +189,8 @@ static const struct watchdog_ops davinci_wdt_ops = {
.restart = davinci_wdt_restart,
};

-static void davinci_clk_disable_unprepare(void *data)
-{
- clk_disable_unprepare(data);
-}
-
static int davinci_wdt_probe(struct platform_device *pdev)
{
- int ret = 0;
struct device *dev = &pdev->dev;
struct watchdog_device *wdd;
struct davinci_wdt_device *davinci_wdt;
@@ -205,21 +199,11 @@ static int davinci_wdt_probe(struct platform_device *pdev)
if (!davinci_wdt)
return -ENOMEM;

- davinci_wdt->clk = devm_clk_get(dev, NULL);
+ davinci_wdt->clk = devm_clk_get_enabled(dev, NULL);
if (IS_ERR(davinci_wdt->clk))
return dev_err_probe(dev, PTR_ERR(davinci_wdt->clk),
"failed to get clock node\n");

- ret = clk_prepare_enable(davinci_wdt->clk);
- if (ret) {
- dev_err(dev, "failed to prepare clock\n");
- return ret;
- }
- ret = devm_add_action_or_reset(dev, davinci_clk_disable_unprepare,
- davinci_wdt->clk);
- if (ret)
- return ret;
-
platform_set_drvdata(pdev, davinci_wdt);

wdd = &davinci_wdt->wdd;
--
2.34.1
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