linux-kernel - [PATCH 5.10 013/135] arm64: dts: armada-3720-turris-mox: fixed indices for the SDHC controllers

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Date:   Tue, 10 Aug 2021 19:29:07 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Vladimir Oltean <vladimir.oltean@....com>,
        Gregory CLEMENT <gregory.clement@...tlin.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 013/135] arm64: dts: armada-3720-turris-mox: fixed indices for the SDHC controllers

From: Vladimir Oltean <vladimir.oltean@....com>

[ Upstream commit 923f98929182dfd04e9149be839160b63a3db145 ]

Since drivers/mmc/host/sdhci-xenon.c declares the PROBE_PREFER_ASYNCHRONOUS
probe type, it is not guaranteed whether /dev/mmcblk0 will belong to
sdhci0 or sdhci1. In turn, this will break booting by:

root=/dev/mmcblk0p1

Fix the issue by adding aliases so that the old MMC controller indices
are preserved.

Fixes: 7320915c8861 ("mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.14")
Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
Signed-off-by: Gregory CLEMENT <gregory.clement@...tlin.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
index 389aebdb35f1..2d51c6f3915d 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
@@ -19,6 +19,8 @@
 	aliases {
 		spi0 = &spi0;
 		ethernet1 = &eth1;
+		mmc0 = &sdhci0;
+		mmc1 = &sdhci1;
 	};
 
 	chosen {
-- 
2.30.2