From mboxrd@z Thu Jan 1 00:00:00 1970 From: tharvey@gateworks.com (Tim Harvey) Date: Wed, 30 Apr 2014 23:32:30 -0700 Subject: [PATCH 1/2] ARM: dts: imx: add LVDS backlight for Ventana In-Reply-To: <20140429060106.GG16451@dragon> References: <20140429060106.GG16451@dragon> Message-ID: <1398925950-26081-1-git-send-email-tharvey@gateworks.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The GW54xx/GW53xx/GW52xx all support LVDS with a PWM controlled backlight. Signed-off-by: Tim Harvey --- arch/arm/boot/dts/imx6qdl-gw52xx.dtsi | 19 +++++++++++++++++++ arch/arm/boot/dts/imx6qdl-gw53xx.dtsi | 19 +++++++++++++++++++ arch/arm/boot/dts/imx6qdl-gw54xx.dtsi | 19 +++++++++++++++++++ 3 files changed, 57 insertions(+) diff --git a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi index 1022197..62f533a 100644 --- a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi +++ b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi @@ -27,6 +27,13 @@ bootargs = "console=ttymxc1,115200"; }; + backlight { + compatible = "pwm-backlight"; + pwms = <&pwm4 0 5000000>; + brightness-levels = <0 4 8 16 32 64 128 255>; + default-brightness-level = <7>; + }; + leds { compatible = "gpio-leds"; @@ -399,6 +406,12 @@ >; }; + pinctrl_pwm4: pwm4grp { + fsl,pins = < + MX6QDL_PAD_SD1_CMD__PWM4_OUT 0x1b0b1 + >; + }; + pinctrl_uart1: uart1grp { fsl,pins = < MX6QDL_PAD_SD3_DAT7__UART1_TX_DATA 0x1b0b1 @@ -448,6 +461,12 @@ status = "okay"; }; +&pwm4 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pwm4>; + status = "okay"; +}; + &ssi1 { fsl,mode = "i2s-slave"; status = "okay"; diff --git a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi index ef7bd99..c2284c8 100644 --- a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi +++ b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi @@ -30,6 +30,13 @@ bootargs = "console=ttymxc1,115200"; }; + backlight { + compatible = "pwm-backlight"; + pwms = <&pwm4 0 5000000>; + brightness-levels = <0 4 8 16 32 64 128 255>; + default-brightness-level = <7>; + }; + leds { compatible = "gpio-leds"; @@ -439,6 +446,12 @@ >; }; + pinctrl_pwm4: pwm4grp { + fsl,pins = < + MX6QDL_PAD_SD1_CMD__PWM4_OUT 0x1b0b1 + >; + }; + pinctrl_uart1: uart1grp { fsl,pins = < MX6QDL_PAD_SD3_DAT7__UART1_TX_DATA 0x1b0b1 @@ -513,6 +526,12 @@ }; }; +&pwm4 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pwm4>; + status = "okay"; +}; + &ssi1 { fsl,mode = "i2s-slave"; status = "okay"; diff --git a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi index 4ce8f68..9aa95c8 100644 --- a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi +++ b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi @@ -30,6 +30,13 @@ bootargs = "console=ttymxc1,115200"; }; + backlight { + compatible = "pwm-backlight"; + pwms = <&pwm4 0 5000000>; + brightness-levels = <0 4 8 16 32 64 128 255>; + default-brightness-level = <7>; + }; + leds { compatible = "gpio-leds"; @@ -461,6 +468,12 @@ >; }; + pinctrl_pwm4: pwm4grp { + fsl,pins = < + MX6QDL_PAD_SD1_CMD__PWM4_OUT 0x1b0b1 + >; + }; + pinctrl_uart1: uart1grp { fsl,pins = < MX6QDL_PAD_SD3_DAT7__UART1_TX_DATA 0x1b0b1 @@ -535,6 +548,12 @@ }; }; +&pwm4 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pwm4>; + status = "okay"; +}; + &ssi1 { fsl,mode = "i2s-slave"; status = "okay"; -- 1.8.3.2