linux-kernel - [PATCHv3 5/7] ARM: dts: exynos5422: use wp-gpio method to detect sd-card

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Date:   Thu, 20 Sep 2018 17:58:24 +0000
From:   Anand Moon <linux.amoon@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Jaehoon Chung <jh80.chung@...sung.com>,
        Ulf Hansson <ulf.hansson@...aro.org>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mmc@...r.kernel.org
Subject: [PATCHv3 5/7] ARM: dts: exynos5422: use wp-gpio method to detect sd-card

add the Write Protect GPIO property for sdcard, to fix
the warning message during boot time.
of_get_named_gpiod_flags: can't parse 'wp-gpios' property of node '/soc/mmc@...20000[0]'

Signed-off-by: Anand Moon <linux.amoon@...il.com>
---
New patch to this series.
If we keep the wp-gpio GPIO_ACTIVE_LOW sdcard boot into RO mode.
---
 arch/arm/boot/dts/exynos5422-odroid-core.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
index 03fe02ceae66..475c38bbc99e 100644
--- a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
@@ -370,6 +370,7 @@
 	cap-sd-highspeed;
 	max-frequency = <200000000>;
 	cd-gpios = <&gpc2 2 GPIO_ACTIVE_LOW>;
+	wp-gpios = <&gpc4 0 GPIO_ACTIVE_HIGH>;
 	vmmc-supply = <&ldo19_reg>;
 	vqmmc-supply = <&ldo13_reg>;
 	sd-uhs-sdr50;
-- 
2.17.1