Patch "sdhci-of-dwcmshc: disable PM runtime in dwcmshc_remove()" has been added to the 6.7-stable tree

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This is a note to let you know that I've just added the patch titled

    sdhci-of-dwcmshc: disable PM runtime in dwcmshc_remove()

to the 6.7-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     sdhci-of-dwcmshc-disable-pm-runtime-in-dwcmshc_remove.patch
and it can be found in the queue-6.7 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 03749309909935070253accab314288d332a204d Mon Sep 17 00:00:00 2001
From: Liming Sun <limings@xxxxxxxxxx>
Date: Tue, 19 Mar 2024 12:16:16 -0400
Subject: sdhci-of-dwcmshc: disable PM runtime in dwcmshc_remove()

From: Liming Sun <limings@xxxxxxxxxx>

commit 03749309909935070253accab314288d332a204d upstream.

This commit disables PM runtime in dwcmshc_remove() to avoid the
error message below when reloading the sdhci-of-dwcmshc.ko

  sdhci-dwcmshc MLNXBF30:00: Unbalanced pm_runtime_enable!

Fixes: 48fe8fadbe5e ("mmc: sdhci-of-dwcmshc: Add runtime PM operations")
Reviewed-by: David Thompson <davthompson@xxxxxxxxxx>
Signed-off-by: Liming Sun <limings@xxxxxxxxxx>
Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/b9155963ffb12d18375002bf9ac9a3f98b727fc8.1710854108.git.limings@xxxxxxxxxx
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/mmc/host/sdhci-of-dwcmshc.c |   28 +++++++++++++++++-----------
 1 file changed, 17 insertions(+), 11 deletions(-)

--- a/drivers/mmc/host/sdhci-of-dwcmshc.c
+++ b/drivers/mmc/host/sdhci-of-dwcmshc.c
@@ -584,6 +584,17 @@ free_pltfm:
 	return err;
 }
 
+static void dwcmshc_disable_card_clk(struct sdhci_host *host)
+{
+	u16 ctrl;
+
+	ctrl = sdhci_readw(host, SDHCI_CLOCK_CONTROL);
+	if (ctrl & SDHCI_CLOCK_CARD_EN) {
+		ctrl &= ~SDHCI_CLOCK_CARD_EN;
+		sdhci_writew(host, ctrl, SDHCI_CLOCK_CONTROL);
+	}
+}
+
 static void dwcmshc_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
@@ -591,8 +602,14 @@ static void dwcmshc_remove(struct platfo
 	struct dwcmshc_priv *priv = sdhci_pltfm_priv(pltfm_host);
 	struct rk35xx_priv *rk_priv = priv->priv;
 
+	pm_runtime_get_sync(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+	pm_runtime_put_noidle(&pdev->dev);
+
 	sdhci_remove_host(host, 0);
 
+	dwcmshc_disable_card_clk(host);
+
 	clk_disable_unprepare(pltfm_host->clk);
 	clk_disable_unprepare(priv->bus_clk);
 	if (rk_priv)
@@ -683,17 +700,6 @@ static void dwcmshc_enable_card_clk(stru
 		sdhci_writew(host, ctrl, SDHCI_CLOCK_CONTROL);
 	}
 }
-
-static void dwcmshc_disable_card_clk(struct sdhci_host *host)
-{
-	u16 ctrl;
-
-	ctrl = sdhci_readw(host, SDHCI_CLOCK_CONTROL);
-	if (ctrl & SDHCI_CLOCK_CARD_EN) {
-		ctrl &= ~SDHCI_CLOCK_CARD_EN;
-		sdhci_writew(host, ctrl, SDHCI_CLOCK_CONTROL);
-	}
-}
 
 static int dwcmshc_runtime_suspend(struct device *dev)
 {


Patches currently in stable-queue which might be from limings@xxxxxxxxxx are

queue-6.7/sdhci-of-dwcmshc-disable-pm-runtime-in-dwcmshc_remove.patch




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