Thread (14 messages) 14 messages, 3 authors, 7d ago

Re: [PATCH v6 7/8] mmc: sdhci-esdhc-imx: make non-fatal errors non-blocking in suspend

From: Frank Li <hidden>
Date: 2026-07-13 14:52:57
Also in: imx, linux-mmc, lkml

On Mon, Jul 13, 2026 at 12:39:03PM +0800, ziniu.wang_1@oss.nxp.com wrote:
quoted hunk ↗ jump to hunk
From: Luke Wang <redacted>

Make pinctrl_pm_select_sleep_state() and mmc_gpio_set_cd_wake() failures
non-fatal in the suspend path. These failures only mean slightly higher
power consumption or missing CD wakeup capability, but should not block
system suspend.

Also change the function to always return 0 on the success path instead
of propagating non-fatal warning return values.

Fixes: 676a83855614 ("mmc: host: sdhci-esdhc-imx: refactor the system PM logic")
Signed-off-by: Luke Wang <redacted>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 7818f351a58a..6cb84690fde4 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -2097,10 +2097,12 @@ static int sdhci_esdhc_suspend(struct device *dev)
 		 */
 		ret = pinctrl_pm_select_sleep_state(dev);
 		if (ret)
-			return ret;
+			dev_warn(dev, "Failed to select sleep pinctrl state\n");
 	}

 	ret = mmc_gpio_set_cd_wake(host->mmc, true);
+	if (ret)
+		dev_warn(dev, "Failed to enable cd wake\n");

 	/*
 	 * Make sure invoke runtime_suspend to gate off clock.
@@ -2108,7 +2110,7 @@ static int sdhci_esdhc_suspend(struct device *dev)
 	 */
 	pm_runtime_force_suspend(dev);

-	return ret;
+	return 0;
if other error path set ret as not zero, the real error may missed, I suggest
don't set it let

	if (pinctrl_pm_select_sleep_state(dev))
		dev_warn(...)

	still leave ret here.

Frank
 }

 static int sdhci_esdhc_resume(struct device *dev)
--
2.34.1
  
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