From mboxrd@z Thu Jan 1 00:00:00 1970 From: lee.jones@linaro.org (Lee Jones) Date: Thu, 25 Oct 2012 10:57:08 +0100 Subject: [PATCH 5/8] ARM: ux500: Add node for the MMC GPIO regulator In-Reply-To: <1351159031-25391-1-git-send-email-lee.jones@linaro.org> References: <1351159031-25391-1-git-send-email-lee.jones@linaro.org> Message-ID: <1351159031-25391-6-git-send-email-lee.jones@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- 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