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authorGeert Uytterhoeven <geert+renesas@glider.be>2021-11-16 14:36:07 +0100
committerGeert Uytterhoeven <geert+renesas@glider.be>2021-11-26 14:04:16 +0100
commit366df82fc68a9db22ab9de890a372d79662e397c (patch)
treee8126539cab9849ae8d459b11bf00456ff115536 /drivers/mmc
parent827fbac821a656b80b761e8e39a172669569cdcf (diff)
downloadlinux-366df82fc68a9db22ab9de890a372d79662e397c.tar.bz2
mmc: renesas_sdhi: Use devm_clk_get_optional() to obtain CD clock
Use the existing devm_clk_get_optional() helper to obtain the optional Card Detect clock, instead of open-coding the same operation. a side effect, real errors will now be handled correctly instead of being ignored. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/540d803d31bf9aa1d0f78f431cae0ccd05387edc.1637069733.git.geert+renesas@glider.be
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/renesas_sdhi_core.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c
index 2f5e22e539a3..61cde437f317 100644
--- a/drivers/mmc/host/renesas_sdhi_core.c
+++ b/drivers/mmc/host/renesas_sdhi_core.c
@@ -936,9 +936,9 @@ int renesas_sdhi_probe(struct platform_device *pdev,
* to the card detect circuit. That leaves us with if separate clocks
* are presented, we must treat them both as virtually 1 clock.
*/
- priv->clk_cd = devm_clk_get(&pdev->dev, "cd");
+ priv->clk_cd = devm_clk_get_optional(&pdev->dev, "cd");
if (IS_ERR(priv->clk_cd))
- priv->clk_cd = NULL;
+ return dev_err_probe(&pdev->dev, PTR_ERR(priv->clk_cd), "cannot get cd clock");
priv->pinctrl = devm_pinctrl_get(&pdev->dev);
if (!IS_ERR(priv->pinctrl)) {