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authorShawn Guo <shawn.guo@linaro.org>2012-08-02 22:48:39 +0800
committerShawn Guo <shawn.guo@linaro.org>2012-08-03 22:36:17 +0800
commit1eec0c569523782392b5e6245effddb626213b8c (patch)
tree85f21d1c00bb03135b1ea80b1ddce3ba2193a1f1 /arch/arm/boot/dts
parent68b0562df90a76ba964423986b2472c7e791729a (diff)
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>
Diffstat (limited to 'arch/arm/boot/dts')
-rw-r--r--arch/arm/boot/dts/imx53-ard.dts20
1 files changed, 20 insertions, 0 deletions
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";