[PATCH] nvmem: jz4780-efuse: Use devm_clk_get_enabled() helpers

From: Huan Yang
Date: Tue Aug 20 2024 - 06:25:45 EST


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

This simplifies the code and avoids the calls to clk_disable_unprepare().

Signed-off-by: Huan Yang <link@xxxxxxxx>
---
drivers/nvmem/jz4780-efuse.c | 18 +-----------------
1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/nvmem/jz4780-efuse.c b/drivers/nvmem/jz4780-efuse.c
index 0b01b840edd9..2b5badfbf22f 100644
--- a/drivers/nvmem/jz4780-efuse.c
+++ b/drivers/nvmem/jz4780-efuse.c
@@ -131,11 +131,6 @@ static const struct regmap_config jz4780_efuse_regmap_config = {
.max_register = JZ_EFUDATA(7),
};

-static void clk_disable_unprepare_helper(void *clock)
-{
- clk_disable_unprepare(clock);
-}
-
static int jz4780_efuse_probe(struct platform_device *pdev)
{
struct nvmem_device *nvmem;
@@ -146,7 +141,6 @@ static int jz4780_efuse_probe(struct platform_device *pdev)
unsigned long rd_strobe;
struct device *dev = &pdev->dev;
void __iomem *regs;
- int ret;

efuse = devm_kzalloc(dev, sizeof(*efuse), GFP_KERNEL);
if (!efuse)
@@ -161,20 +155,10 @@ static int jz4780_efuse_probe(struct platform_device *pdev)
if (IS_ERR(efuse->map))
return PTR_ERR(efuse->map);

- efuse->clk = devm_clk_get(&pdev->dev, NULL);
+ efuse->clk = devm_clk_get_enabled(&pdev->dev, NULL);
if (IS_ERR(efuse->clk))
return PTR_ERR(efuse->clk);

- ret = clk_prepare_enable(efuse->clk);
- if (ret < 0)
- return ret;
-
- ret = devm_add_action_or_reset(&pdev->dev,
- clk_disable_unprepare_helper,
- efuse->clk);
- if (ret < 0)
- return ret;
-
clk_rate = clk_get_rate(efuse->clk);

efuse->dev = dev;
--
2.45.2