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[PATCH 3/3] Addition of binding for firmware signals on peach-pi

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The peach pi has a GPIO connected to the firmware write protect, developer
mode and recovery mode lines. This patch adds the required nodes to the
device tree to configure the pinmuxing and allow these to be read from
user space.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk>
---
 arch/arm/boot/dts/exynos5800-peach-pi.dts | 40 +++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
index 49a4f43..485c18f 100644
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
@@ -53,6 +53,25 @@
 		};
 	};
 
+	chromeos-firmware {
+		compatible = "google,gpio-firmware";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&wp_gpio &dev_mode &rec_mode>;
+
+		write-protect {
+			gpios = <&gpx3 0 GPIO_ACTIVE_LOW>;
+		};
+
+		developer-switch {
+			gpios = <&gpx1 3 GPIO_ACTIVE_HIGH>;
+		};
+
+		recovery-switch {
+			gpios = <&gpx0 7 GPIO_ACTIVE_LOW>;
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 
@@ -731,6 +750,13 @@
 		samsung,pin-val = <0>;
 	};
 
+	rec_mode: rec-mode {
+		samsung,pins = "gpx0-7";
+		samsung,pin-function = <0>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <0>;
+	};
+
 	tpm_irq: tpm-irq {
 		samsung,pins = "gpx1-0";
 		samsung,pin-function = <0>;
@@ -752,6 +778,13 @@
 		samsung,pin-drv = <0>;
 	};
 
+	dev_mode: dev-mode {
+		samsung,pins = "gpx1-3";
+		samsung,pin-function = <0>;
+		samsung,pin-pud = <3>;
+		samsung,pin-drv = <0>;
+	};
+
 	ec_irq: ec-irq {
 		samsung,pins = "gpx1-5";
 		samsung,pin-function = <0>;
@@ -773,6 +806,13 @@
 		samsung,pin-drv = <0>;
 	};
 
+	wp_gpio: wp_gpio {
+		samsung,pins = "gpx3-0";
+		samsung,pin-function = <0>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <0>;
+	};
+
 	max77802_irq: max77802-irq {
 		samsung,pins = "gpx3-1";
 		samsung,pin-function = <0>;
-- 
2.1.4

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Add support for Chrome OS firmware signals Martyn Welch <martyn.welch@collabora.co.uk> - 2015-12-01 20:20 +0100
  [PATCH 2/3] Add support for monitoring Chrome OS firmware signals Martyn Welch <martyn.welch@collabora.co.uk> - 2015-12-01 20:20 +0100
    [PATCH v2] Add support for monitoring Chrome OS firmware signals Martyn Welch <martyn.welch@collabora.co.uk> - 2015-12-01 21:30 +0100
      Re: [PATCH v2] Add support for monitoring Chrome OS firmware signals Jeremiah Mahler <jmmahler@gmail.com> - 2015-12-02 07:10 +0100
        Re: [PATCH v2] Add support for monitoring Chrome OS firmware signals Martyn Welch <martyn.welch@collabora.co.uk> - 2015-12-02 10:40 +0100
        [PATCH v3] Add support for monitoring Chrome OS firmware signals Martyn Welch <martyn.welch@collabora.co.uk> - 2015-12-02 11:10 +0100
  [PATCH 3/3] Addition of binding for firmware signals on peach-pi Martyn Welch <martyn.welch@collabora.co.uk> - 2015-12-01 20:20 +0100
    Re: [PATCH 3/3] Addition of binding for firmware signals on peach-pi Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-12-02 01:00 +0100
      Re: [PATCH 3/3] Addition of binding for firmware signals on peach-pi Martyn Welch <martyn.welch@collabora.co.uk> - 2015-12-02 10:40 +0100
        Re: [PATCH 3/3] Addition of binding for firmware signals on peach-pi Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-12-03 01:20 +0100

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