Messages in this thread Patch in this message | | | From | Martyn Welch <> | Subject | [PATCH 3/3] Addition of binding for firmware signals on peach-pi | Date | Tue, 1 Dec 2015 19:12:51 +0000 |
| |
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
| |