From: lee.jones@linaro.org (Lee Jones)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 5/8] ARM: ux500: Add node for the MMC GPIO regulator
Date: Thu, 25 Oct 2012 10:57:08 +0100 [thread overview]
Message-ID: <1351159031-25391-6-git-send-email-lee.jones@linaro.org> (raw)
In-Reply-To: <1351159031-25391-1-git-send-email-lee.jones@linaro.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 <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
next prev parent reply other threads:[~2012-10-25 9:57 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-25 9:57 [PATCH 1/8] Ux5x0 patches loosely surrounding u9540 enablement Lee Jones
2012-10-25 9:57 ` [PATCH 1/8] ARM: ux500: Enable all MMC devices on the u9540 when booting with DT Lee Jones
2012-10-25 9:57 ` [PATCH 2/8] ARM: ux500: Rename references to the ccu9540 dev board accordingly Lee Jones
2012-10-25 9:57 ` [PATCH 3/8] ARM: ux500: Remove duplicate DT_MACHINE_START - make u8500 for generic Lee Jones
2012-10-25 9:57 ` [PATCH 4/8] ARM: ux500: List DT compatibility using platform names rather than by board Lee Jones
2012-10-25 9:57 ` Lee Jones [this message]
2012-10-25 9:57 ` [PATCH 6/8] ARM: ux500: Change the type of interrupt to something compatible Lee Jones
2012-10-25 9:57 ` [PATCH 7/8] ARM: ux500: CONFIG: Enable GPIO Regulators Lee Jones
2012-10-25 9:57 ` [PATCH 8/8] ARM: ux500: Convert DT_MACHINE_START to use SMP operations Lee Jones
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