From mboxrd@z Thu Jan 1 00:00:00 1970 From: Aleksei Mamlin Subject: [PATCH 3/4] ARM: dts: sun7i: Add backlight node to Wexler TAB7200 tablet Date: Fri, 18 Dec 2015 11:52:22 +0300 Message-ID: <1450428742-5737-1-git-send-email-mamlinav@gmail.com> References: <1450428591-5597-1-git-send-email-mamlinav@gmail.com> Reply-To: mamlinav-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: In-Reply-To: <1450428591-5597-1-git-send-email-mamlinav-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , To: Maxime Ripard Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree , linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, Aleksei Mamlin List-Id: devicetree@vger.kernel.org Add a backlight for controlling the lcd panel backlight on Wexler TAB7200 tablet Signed-off-by: Aleksei Mamlin --- arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts b/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts index 1dc9079..f47e5f1 100644 --- a/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts +++ b/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts @@ -48,6 +48,7 @@ #include #include #include +#include / { model = "Wexler TAB7200"; @@ -57,6 +58,16 @@ serial0 = &uart0; }; + backlight { + compatible = "pwm-backlight"; + pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>; + brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>; + default-brightness-level = <8>; + pinctrl-names = "default"; + pinctrl-0 = <&bl_enable_pin>; + enable-gpios = <&pio 7 7 GPIO_ACTIVE_HIGH>; /* PH7 */ + }; + chosen { stdout-path = "serial0:115200n8"; }; @@ -158,6 +169,13 @@ }; &pio { + bl_enable_pin: bl_enable_pin@0 { + allwinner,pins = "PH7"; + allwinner,function = "gpio_out"; + allwinner,drive = ; + allwinner,pull = ; + }; + ts_reset_pin: ts_reset_pin@0 { allwinner,pins = "PB13"; allwinner,function = "gpio_out"; -- 2.4.10