linux-kernel - [PATCH 5.9 178/391] arm64: dts: qcom: kitakami: Temporarily disable SDHCI1

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Date:   Tue,  3 Nov 2020 21:33:49 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Konrad Dybcio <konradybcio@...il.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.9 178/391] arm64: dts: qcom: kitakami: Temporarily disable SDHCI1

From: Konrad Dybcio <konradybcio@...il.com>

[ Upstream commit e884fb6cc89dce1debeae33704edd7735a3d6d9c ]

There is an issue with Kitakami eMMCs dying when a quirk
isn't addressed. Until that happens, disable it.

Signed-off-by: Konrad Dybcio <konradybcio@...il.com>
Link: https://lore.kernel.org/r/20200814154749.257837-1-konradybcio@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi b/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi
index 4032b7478f044..791f254ac3f87 100644
--- a/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi
@@ -221,7 +221,12 @@
 };
 
 &sdhc1 {
-	status = "okay";
+	/* There is an issue with the eMMC causing permanent
+	 * damage to the card if a quirk isn't addressed.
+	 * Until it's fixed, disable the MMC so as not to brick
+	 * devices.
+	 */
+	status = "disabled";
 
 	/* Downstream pushes 2.95V to the sdhci device,
 	 * but upstream driver REALLY wants to make vmmc 1.8v
-- 
2.27.0