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@xxxxxxxxxx>
---
Note that I get a compilation error because <loongson1.h> is not found on
my system (x86_64).
So I think that a "depends on LOONG<something>" in missing in a KConfig
file.
Fixing it could help compilation farms build-bots.
---
drivers/watchdog/loongson1_wdt.c | 17 +----------------
1 file changed, 1 insertion(+), 16 deletions(-)
diff --git a/drivers/watchdog/loongson1_wdt.c b/drivers/watchdog/loongson1_wdt.c
index bb3d075c0633..c55656cfb403 100644
--- a/drivers/watchdog/loongson1_wdt.c
+++ b/drivers/watchdog/loongson1_wdt.c
@@ -79,11 +79,6 @@ static const struct watchdog_ops ls1x_wdt_ops = {
.set_timeout = ls1x_wdt_set_timeout,
};
-static void ls1x_clk_disable_unprepare(void *data)
-{
- clk_disable_unprepare(data);
-}
-
static int ls1x_wdt_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -100,20 +95,10 @@ static int ls1x_wdt_probe(struct platform_device *pdev)
if (IS_ERR(drvdata->base))
return PTR_ERR(drvdata->base);
- drvdata->clk = devm_clk_get(dev, pdev->name);
+ drvdata->clk = devm_clk_get_enabled(dev, pdev->name);
if (IS_ERR(drvdata->clk))
return PTR_ERR(drvdata->clk);
- err = clk_prepare_enable(drvdata->clk);
- if (err) {
- dev_err(dev, "clk enable failed\n");
- return err;
- }
- err = devm_add_action_or_reset(dev, ls1x_clk_disable_unprepare,
- drvdata->clk);
- if (err)
- return err;
-
clk_rate = clk_get_rate(drvdata->clk);
if (!clk_rate)
return -EINVAL;
--
2.34.1
