[PATCH 1/2] ARM: dts: vf-colibri: split PWM pinctrl

Shawn Guo
2015-12-14T02:18:01Z

On Wed, Dec 02, 2015 at 02:11:46PM -0800, Stefan Agner wrote:
> Split PWM pins into separate pinctrl nodes to allow overrides which
> select pins individually. This is useful for carrier boards which use
> only one pin for PWM and would like to use the other pin for a
> different purpose.
>
> Signed-off-by: Stefan Agner <stefan@agner.ch>
> ---
> arch/arm/boot/dts/vf-colibri.dtsi | 18 ++++++++++++++----
> 1 file changed, 14 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm/boot/dts/vf-colibri.dtsi b/arch/arm/boot/dts/vf-colibri.dtsi
> index e5949b9..924b660 100644
> --- a/arch/arm/boot/dts/vf-colibri.dtsi
> +++ b/arch/arm/boot/dts/vf-colibri.dtsi
> @@ -74,12 +74,12 @@
>
> &pwm0 {
> pinctrl-names = "default";
> - pinctrl-0 = <&pinctrl_pwm0>;
> + pinctrl-0 = <&pinctrl_pwm0_a &pinctrl_pwm0_c>;
> };
>
> &pwm1 {
> pinctrl-names = "default";
> - pinctrl-0 = <&pinctrl_pwm1>;
> + pinctrl-0 = <&pinctrl_pwm1_b &pinctrl_pwm1_d>;
> };

It may make more sense to define these pwm nodes in the final board
level dts with only defining the pins that are actually used on the
board.

Shawn

>
> &uart0 {
> @@ -195,16 +195,26 @@
> >;
> };
>
> - pinctrl_pwm0: pwm0grp {
> + pinctrl_pwm0_a: pwm0agrp {
> fsl,pins = <
> VF610_PAD_PTB0__FTM0_CH0 0x1182
> + >;
> + };
> +
> + pinctrl_pwm0_c: pwm0cgrp {
> + fsl,pins = <
> VF610_PAD_PTB1__FTM0_CH1 0x1182
> >;
> };
>
> - pinctrl_pwm1: pwm1grp {
> + pinctrl_pwm1_b: pwm1bgrp {
> fsl,pins = <
> VF610_PAD_PTB8__FTM1_CH0 0x1182
> + >;
> + };
> +
> + pinctrl_pwm1_d: pwm1dgrp {
> + fsl,pins = <
> VF610_PAD_PTB9__FTM1_CH1 0x1182
> >;
> };
> --
> 2.6.2
>
>