From: shawn.guo@freescale.com (Shawn Guo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/3] ARM: dts: imx: add LVDS backlight for Ventana
Date: Tue, 29 Apr 2014 14:01:07 +0800 [thread overview]
Message-ID: <20140429060106.GG16451@dragon> (raw)
In-Reply-To: <1398377247-3901-3-git-send-email-tharvey@gateworks.com>
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
>
>
>
next prev parent reply other threads:[~2014-04-29 6:01 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-24 22:07 [PATCH 0/3] ARM: dts: imx: various fixes for LVDS on Ventana Tim Harvey
2014-04-24 22:07 ` [PATCH 1/3] ARM: dts: imx: Fix LVDS mapping for Ventana GW53xx/GW54xx Tim Harvey
2014-04-24 22:07 ` [PATCH 2/3] ARM: dts: imx: add LVDS backlight for Ventana Tim Harvey
2014-04-29 6:01 ` Shawn Guo [this message]
2014-05-01 6:32 ` [PATCH 1/2] " Tim Harvey
2014-05-04 12:38 ` Shawn Guo
2014-04-24 22:07 ` [PATCH 3/3] ARM: dts: imx: Fix LVDS mapping for Ventana GW52xx Tim Harvey
2014-04-29 5:55 ` Shawn Guo
2014-05-01 6:34 ` [PATCH 2/2] " Tim Harvey
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