FAILED: patch "[PATCH] mmc: sdhci-msm: pervent access to suspended controller" failed to apply to 5.4-stable tree

The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y
git checkout FETCH_HEAD
git cherry-pick -x f8def10f73a516b771051a2f70f2f0446902cb4f
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '2024042911-librarian-armory-e9db@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..

Possible dependencies:

f8def10f73a5 ("mmc: sdhci-msm: pervent access to suspended controller") c93767cf64eb ("mmc: sdhci-msm: add Inline Crypto Engine support") 0472f8d3c054 ("mmc: sdhci-msm: Use OPP API to set clk/perf state") 9051db381fab ("mmc: sdhci-msm: Mark sdhci_msm_cqe_disable static") 87a8df0dce6a ("mmc: sdhci-msm: Add CQHCI support for sdhci-msm")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From f8def10f73a516b771051a2f70f2f0446902cb4f Mon Sep 17 00:00:00 2001
From: Mantas Pucka <[email protected]>
Date: Thu, 21 Mar 2024 14:30:01 +0000
Subject: [PATCH] mmc: sdhci-msm: pervent access to suspended controller

Generic sdhci code registers LED device and uses host->runtime_suspended flag to protect access to it. The sdhci-msm driver doesn't set this flag, which causes a crash when LED is accessed while controller is runtime suspended. Fix this by setting the flag correctly.

index 668e0aceeeba..e113b99a3eab 100644
@@ -2694,6 +2694,11 @@ static __maybe_unused int sdhci_msm_runtime_suspend(struct device *dev)
 	struct sdhci_host *host = dev_get_drvdata(dev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
+	unsigned long flags;
+
+	spin_lock_irqsave(&host->lock, flags);
+	host->runtime_suspended = true;
+	spin_unlock_irqrestore(&host->lock, flags);
 
 	/* Drop the performance vote */
 	dev_pm_opp_set_rate(dev, 0);

@@ -2708,6 +2713,7 @@ static __maybe_unused int sdhci_msm_runtime_resume(struct device *dev)
 	struct sdhci_host *host = dev_get_drvdata(dev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
+	unsigned long flags;
 	int ret;
 
 	ret = clk_bulk_prepare_enable(ARRAY_SIZE(msm_host->bulk_clks),

@@ -2726,7 +2732,15 @@ static __maybe_unused int sdhci_msm_runtime_resume(struct device *dev)
 
 	dev_pm_opp_set_rate(dev, msm_host->clk_rate);
 
-	return sdhci_msm_ice_resume(msm_host);
+	ret = sdhci_msm_ice_resume(msm_host);
+	if (ret)
+		return ret;
+
+	spin_lock_irqsave(&host->lock, flags);
+	host->runtime_suspended = false;
+	spin_unlock_irqrestore(&host->lock, flags);
+
+	return ret;
 }
 
 static const struct dev_pm_ops sdhci_msm_pm_ops = {