Re: [PATCH 3/4] arm64: dts: ti: k3-am642-sk: Add ecap0 node

Nishanth Menon
2021-07-19T15:25:09Z

On 14:24-20210719, Lokesh Vutla wrote:
> ecap0 can be configured to use pad ECAP0_IN_APWM_OUT (D18) which has a
> signal connected to Pin 1 of J3. Add support for adding this pinmux so
> that pwm can be observed on pin 1 of Header J3
>
> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
> Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
> ---
> arch/arm64/boot/dts/ti/k3-am642-sk.dts | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> index d3aa2901e6fd..eb0d10e6e787 100644
> --- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> @@ -210,6 +210,12 @@ AM64X_IOPAD(0x0028, PIN_INPUT, 0) /* (M17) OSPI0_D7 */
> AM64X_IOPAD(0x0008, PIN_INPUT, 0) /* (N19) OSPI0_DQS */
> >;
> };
> +
> + main_ecap0_pins_default: main-ecap0-pins-default {
> + pinctrl-single,pins = <
> + AM64X_IOPAD(0x0270, PIN_INPUT, 0) /* (D18) ECAP0_IN_APWM_OUT */
> + >;
> + };
> };
>
> &mcu_uart0 {
> @@ -453,3 +459,9 @@ &pcie0_rc {
> &pcie0_ep {
> status = "disabled";
> };
> +
> +&ecap0 {
> + /* PWM is available on Pin 1 of header J3 */
> + pinctrl-names = "default";
> + pinctrl-0 = <&main_ecap0_pins_default>;
> +};
> --
> 2.30.0
>

Do the other ecap and pwm nodes need to be disabled since they may not
be pinned out?

--
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D