Message ID | 1398377247-3901-3-git-send-email-tharvey@gateworks.com (mailing list archive) |
---|---|
State | Superseded, archived |
Headers | show |
On Thu, Apr 24, 2014 at 03:07:26PM -0700, Tim Harvey wrote: > The GW54xx/GW53xx/GW52xx all support LVDS with a PWM controlled backlight. > > Signed-off-by: Tim Harvey <tharvey@gateworks.com> > --- > arch/arm/boot/dts/imx6qdl-gw52xx.dtsi | 20 ++++++++++++++++++++ > arch/arm/boot/dts/imx6qdl-gw53xx.dtsi | 20 ++++++++++++++++++++ > arch/arm/boot/dts/imx6qdl-gw54xx.dtsi | 20 ++++++++++++++++++++ > 3 files changed, 60 insertions(+) > > diff --git a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi > index 607888c..9c9259b 100644 > --- a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi > +++ b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi > @@ -27,6 +27,14 @@ > 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>; > + status = "okay"; This might be copied from some existing dts file. But the "okay" status line is only needed for nodes that have a "disabled" status line in <soc>.dtsi. You can just drop the line from this backlight node. Shawn > + }; > + > leds { > compatible = "gpio-leds"; > > @@ -399,6 +407,12 @@ > >; > }; > > + 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 > @@ -451,6 +465,12 @@ > 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..3e146d6 100644 > --- a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi > +++ b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi > @@ -30,6 +30,14 @@ > 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>; > + status = "okay"; > + }; > + > leds { > compatible = "gpio-leds"; > > @@ -439,6 +447,12 @@ > >; > }; > > + 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 +527,12 @@ > }; > }; > > +&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..d145f8c 100644 > --- a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi > +++ b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi > @@ -30,6 +30,14 @@ > 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>; > + status = "okay"; > + }; > + > leds { > compatible = "gpio-leds"; > > @@ -461,6 +469,12 @@ > >; > }; > > + 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 +549,12 @@ > }; > }; > > +&pwm4 { > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_pwm4>; > + status = "okay"; > +}; > + > &ssi1 { > fsl,mode = "i2s-slave"; > status = "okay"; > -- > 1.8.3.2 > > >
diff --git a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi index 607888c..9c9259b 100644 --- a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi +++ b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi @@ -27,6 +27,14 @@ 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>; + status = "okay"; + }; + leds { compatible = "gpio-leds"; @@ -399,6 +407,12 @@ >; }; + 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 @@ -451,6 +465,12 @@ 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..3e146d6 100644 --- a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi +++ b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi @@ -30,6 +30,14 @@ 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>; + status = "okay"; + }; + leds { compatible = "gpio-leds"; @@ -439,6 +447,12 @@ >; }; + 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 +527,12 @@ }; }; +&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..d145f8c 100644 --- a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi +++ b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi @@ -30,6 +30,14 @@ 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>; + status = "okay"; + }; + leds { compatible = "gpio-leds"; @@ -461,6 +469,12 @@ >; }; + 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 +549,12 @@ }; }; +&pwm4 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pwm4>; + status = "okay"; +}; + &ssi1 { fsl,mode = "i2s-slave"; status = "okay";
The GW54xx/GW53xx/GW52xx all support LVDS with a PWM controlled backlight. Signed-off-by: Tim Harvey <tharvey@gateworks.com> --- arch/arm/boot/dts/imx6qdl-gw52xx.dtsi | 20 ++++++++++++++++++++ arch/arm/boot/dts/imx6qdl-gw53xx.dtsi | 20 ++++++++++++++++++++ arch/arm/boot/dts/imx6qdl-gw54xx.dtsi | 20 ++++++++++++++++++++ 3 files changed, 60 insertions(+)