Messages in this thread Patch in this message | | | From | Lee Jones <> | Subject | [PATCH 5/8] ARM: ux500: Add node for the MMC GPIO regulator | Date | Thu, 25 Oct 2012 10:57:08 +0100 |
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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(+)
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>; + }; }; }; -- 1.7.9.5
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