[PATCH] watchdog: meson_gxbb: Use devm_clk_get_enabled() helper
Christophe JAILLET
christophe.jaillet at wanadoo.fr
Sat Dec 31 04:34:44 PST 2022
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 at wanadoo.fr>
---
drivers/watchdog/meson_gxbb_wdt.c | 16 +---------------
1 file changed, 1 insertion(+), 15 deletions(-)
diff --git a/drivers/watchdog/meson_gxbb_wdt.c b/drivers/watchdog/meson_gxbb_wdt.c
index 981a2f7c3bec..35d80cb39856 100644
--- a/drivers/watchdog/meson_gxbb_wdt.c
+++ b/drivers/watchdog/meson_gxbb_wdt.c
@@ -146,16 +146,10 @@ static const struct of_device_id meson_gxbb_wdt_dt_ids[] = {
};
MODULE_DEVICE_TABLE(of, meson_gxbb_wdt_dt_ids);
-static void meson_clk_disable_unprepare(void *data)
-{
- clk_disable_unprepare(data);
-}
-
static int meson_gxbb_wdt_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct meson_gxbb_wdt *data;
- int ret;
u32 ctrl_reg;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
@@ -166,18 +160,10 @@ static int meson_gxbb_wdt_probe(struct platform_device *pdev)
if (IS_ERR(data->reg_base))
return PTR_ERR(data->reg_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, meson_clk_disable_unprepare,
- data->clk);
- if (ret)
- return ret;
-
platform_set_drvdata(pdev, data);
data->wdt_dev.parent = dev;
--
2.34.1
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