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[5/8] ARM: ux500: Add node for the MMC GPIO regulator

Message ID 1351159031-25391-6-git-send-email-lee.jones@linaro.org
State Accepted
Commit 0563f638f052185ea45441b5e7ec06a90e4e7837
Headers show

Commit Message

Lee Jones Oct. 25, 2012, 9:57 a.m. UTC
There is a very simple mechanism to change and SDI's voltage which
consists of toggling some GPIOs. This scenario can be better handled
if we convert it to a GPIO regulator. This patch provides one which
can be read from Device Tree.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 arch/arm/boot/dts/dbx5x0.dtsi |   14 ++++++++++++++
 1 file changed, 14 insertions(+)
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Patch

diff --git a/arch/arm/boot/dts/dbx5x0.dtsi b/arch/arm/boot/dts/dbx5x0.dtsi
index 07a085b..536df5d 100644
--- a/arch/arm/boot/dts/dbx5x0.dtsi
+++ b/arch/arm/boot/dts/dbx5x0.dtsi
@@ -614,5 +614,19 @@ 
 			ranges = <0 0x50000000 0x4000000>;
 			status = "disabled";
 		};
+
+		vmmci: regulator-gpio {
+			compatible = "regulator-gpio";
+
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <2600000>;
+			regulator-name = "mmci-reg";
+			regulator-type = "voltage";
+
+			gpios = <&tc3589x_gpio 18 0x4>;
+			gpio-enable = <&tc3589x_gpio 17 0x4>;
+			states = <1800000 0x1
+				  2900000 0x0>;
+		};
 	};
 };