linux-kernel - [PATCH v2] ARM: dts: exynos4412-trats: Add micro SD card SDHCI node

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Message-id: <1414421995-22618-1-git-send-email-k.kozlowski@samsung.com>
Date:	Mon, 27 Oct 2014 15:59:55 +0100
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Ben Dooks <ben-linux@...ff.org>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Russell King <linux@....linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc:	Kyungmin Park <kyungmin.park@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Subject: [PATCH v2] ARM: dts: exynos4412-trats: Add micro SD card SDHCI node

Add SDHCI node for supporting the micro SD card. On Trats2 board the
SDHCI does not use sd2_cd pins (gpk2-2) for card detect but gpx3-4
instead.

Power is supplied from LDO21 regulator which in off state is controlled
by external GPIO pin.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>

---

Changes since v1:
1. Drop FIXME comment (about findings during testing).
---
 arch/arm/boot/dts/exynos4412-trats2.dts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index a5aa52bba72c..7a68e0832cd6 100644
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -603,6 +603,16 @@
 		cap-mmc-highspeed;
 	};
 
+	sdhci@...30000 {
+		bus-width = <4>;
+		cd-gpios = <&gpx3 4 0>;
+		cd-inverted;
+		pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_bus4>;
+		pinctrl-names = "default";
+		vmmc-supply = <&ldo21_reg>;
+		status = "okay";
+	};
+
 	serial@...00000 {
 		status = "okay";
 	};
-- 
1.9.1

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