From: Shawn Guo <shawn.guo@linaro.org>
Date: Thu, 2 Aug 2012 14:48:39 +0000 (+0800)
Subject: ARM: dts: imx53-ard: add regulators for lan9220
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1eec0c569523782392b5e6245effddb626213b8c;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

ARM: dts: imx53-ard: add regulators for lan9220

Since commit c7e963f (net/smsc911x: Add regulator support), the lan9220
device tree probe fails on imx53-ard board, because the commit makes
VDD33A and VDDVARIO supplies mandatory for the driver.

Add a fixed dummy 3V3 supplying lan9220 to fix the regression.

Cc: stable@vger.kernel.org
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---

diff --git a/arch/arm/boot/dts/imx53-ard.dts b/arch/arm/boot/dts/imx53-ard.dts
index 5b8eafcdbeec..fa95f4aa8ce6 100644
--- a/arch/arm/boot/dts/imx53-ard.dts
+++ b/arch/arm/boot/dts/imx53-ard.dts
@@ -66,10 +66,30 @@
 			interrupt-parent = <&gpio2>;
 			interrupts = <31>;
 			reg-io-width = <4>;
+			/*
+			 * VDD33A and VDDVARIO of LAN9220 are supplied by
+			 * SW4_3V3 of LTC3589.  Before the regulator driver
+			 * for this PMIC is available, we use a fixed dummy
+			 * 3V3 regulator to get LAN9220 driver probing work.
+			 */
+			vdd33a-supply = <&reg_3p3v>;
+			vddvario-supply = <&reg_3p3v>;
 			smsc,irq-push-pull;
 		};
 	};
 
+	regulators {
+		compatible = "simple-bus";
+
+		reg_3p3v: 3p3v {
+			compatible = "regulator-fixed";
+			regulator-name = "3P3V";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";