linux-kernel - [PATCH 5.7 046/393] arm64: dts: meson: fix mmc0 tuning error on Khadas VIM3

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Message-Id: <20200817143821.850179161@linuxfoundation.org>
Date:   Mon, 17 Aug 2020 17:11:36 +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,
        Christian Hewitt <christianshewitt@...il.com>,
        Kevin Hilman <khilman@...libre.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.7 046/393] arm64: dts: meson: fix mmc0 tuning error on Khadas VIM3

From: Christian Hewitt <christianshewitt@...il.com>

[ Upstream commit f1bb924e8f5b50752a80fa5b48c43003680a7b64 ]

Similar to other G12B devices using the W400 dtsi, I see reports of mmc0
tuning errors on VIM3 after a few hours uptime:

[12483.917391] mmc0: tuning execution failed: -5
[30535.551221] mmc0: tuning execution failed: -5
[35359.953671] mmc0: tuning execution failed: -5
[35561.875332] mmc0: tuning execution failed: -5
[61733.348709] mmc0: tuning execution failed: -5

I do not see the same on VIM3L, so remove sd-uhs-sdr50 from the common dtsi
to silence the error, then (re)add it to the VIM3L dts.

Fixes: 4f26cc1c96c9 ("arm64: dts: khadas-vim3: move common nodes into meson-khadas-vim3.dtsi")
Fixes: 700ab8d83927 ("arm64: dts: khadas-vim3: add support for the SM1 based VIM3L")
Signed-off-by: Christian Hewitt <christianshewitt@...il.com>
Signed-off-by: Kevin Hilman <khilman@...libre.com>
Link: https://lore.kernel.org/r/20200721015950.11816-1-christianshewitt@gmail.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi     | 1 -
 arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dts | 4 ++++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi b/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
index 1ef1e3672b967..ff5ba85b7562e 100644
--- a/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
@@ -270,7 +270,6 @@ &sd_emmc_a {
 
 	bus-width = <4>;
 	cap-sd-highspeed;
-	sd-uhs-sdr50;
 	max-frequency = <100000000>;
 
 	non-removable;
diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dts b/arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dts
index dbbf29a0dbf6d..026b21708b078 100644
--- a/arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dts
@@ -88,6 +88,10 @@ &pcie {
 	status = "okay";
 };
 
+&sd_emmc_a {
+	sd-uhs-sdr50;
+};
+
 &usb {
 	phys = <&usb2_phy0>, <&usb2_phy1>;
 	phy-names = "usb2-phy0", "usb2-phy1";
-- 
2.25.1