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ARM: ux500: Add node for the MMC GPIO regulator 

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.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Lee Jones 2012-10-24 11:18:14 +01:00
parent 79b40753a3
commit 0563f638f0
1 changed files with 14 additions and 0 deletions
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14
arch/arm/boot/dts/dbx5x0.dtsi
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@ -629,5 +629,19 @@
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>;
};
};
};