linux-kernel - [PATCH v2] arm64: dts: meson: misc fixups for w400 dtsi

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Date:   Tue, 21 Jul 2020 01:39:52 +0000
From:   Christian Hewitt <christianshewitt@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Kevin Hilman <khilman@...libre.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Christian Hewitt <christianshewitt@...il.com>
Subject: [PATCH v2] arm64: dts: meson: misc fixups for w400 dtsi

Current devices using the W400 dtsi show mmc tuning errors:

[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

Removing "sd-uhs-sdr50" from the SDIO node prevents this. We also add
keep-power-in-suspend to the SDIO node and fix an indentation.

Fixes: 3cb74db9b256 ("arm64: dts: meson: convert ugoos-am6 to common w400 dtsi")
Signed-off-by: Christian Hewitt <christianshewitt@...il.com>
---
 arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi
index 98b70d216a6f..2802ddbb83ac 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi
@@ -336,9 +336,11 @@
 
 	bus-width = <4>;
 	cap-sd-highspeed;
-	sd-uhs-sdr50;
 	max-frequency = <100000000>;
 
+	/* WiFi firmware requires power to be kept while in suspend */
+	keep-power-in-suspend;
+
 	non-removable;
 	disable-wp;
 
@@ -398,7 +400,7 @@
 		shutdown-gpios = <&gpio GPIOX_17 GPIO_ACTIVE_HIGH>;
 		max-speed = <2000000>;
 		clocks = <&wifi32k>;
-	clock-names = "lpo";
+		clock-names = "lpo";
 	};
 };
 
-- 
2.17.1