Thread (3 messages) 3 messages, 3 authors, 2026-06-11

Re: [PATCH] phy: freescale: phy-fsl-imx8qm-lvds-phy: Use synchronous PM runtime put in reset

From: Frank Li <hidden>
Date: 2026-06-09 15:51:50
Also in: imx, linux-phy, lkml

On Tue, Jun 09, 2026 at 10:48:50PM +0800, Felix Gu wrote:
The mixel_lvds_phy_reset() function pairs pm_runtime_resume_and_get()
with pm_runtime_put(). The asynchronous variant queues a work item
to handle the idle check and potential suspend, which can be cancelled
by a subsequent pm_runtime_disable() call if probe fails after the reset.

Switch to pm_runtime_put_sync() to run the idle check and suspend
synchronously.

Fixes: 06ff622d61d2 ("phy: freescale: Add i.MX8qm Mixel LVDS PHY support")
Reported-by: sashiko <sashiko-bot@kernel.org>
Closes: https://sashiko.dev/#/patchset/20260605-lvds-v2-1-3ce7539d1104%40gmail.com
Signed-off-by: Felix Gu <redacted>
---
Reviewed-by: Frank Li <Frank.Li@nxp.com>
quoted hunk ↗ jump to hunk
 drivers/phy/freescale/phy-fsl-imx8qm-lvds-phy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/phy/freescale/phy-fsl-imx8qm-lvds-phy.c b/drivers/phy/freescale/phy-fsl-imx8qm-lvds-phy.c
index ece357443521..e2a1645000ae 100644
--- a/drivers/phy/freescale/phy-fsl-imx8qm-lvds-phy.c
+++ b/drivers/phy/freescale/phy-fsl-imx8qm-lvds-phy.c
@@ -286,7 +286,7 @@ static int mixel_lvds_phy_reset(struct device *dev)

        regmap_write(priv->regmap, PHY_CTRL, CTRL_RESET_VAL);

-       pm_runtime_put(dev);
+       pm_runtime_put_sync(dev);

        return 0;
 }
---
base-commit: a87737435cfa134f9cdcc696ba3080759d04cf72
change-id: 20260609-lvds-phy-6328389a2cf1

Best regards,
--
Felix Gu [off-list ref]
  
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