[PATCH 4/4] arm64: dts: ti: k3-am642-evm: Add ecap0 node

Lokesh Vutla
2021-07-19T08:57:54Z

ecap0 can be configured to use pad ECAP0_IN_APWM_OUT (D18) which has a
signal connected to Pin 1 of J12 on EVM. Add support for adding this
pinmux so that pwm can be observed on pin 1 of Header J12

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
---
arch/arm64/boot/dts/ti/k3-am642-evm.dts | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index 030712221188..7da1238cb1d6 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -288,6 +288,12 @@ 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 */
+ >;
+ };
};

&main_uart0 {
@@ -574,3 +580,9 @@ &pcie0_ep {
num-lanes = <1>;
status = "disabled";
};
+
+&ecap0 {
+ /* PWM is available on Pin 1 of header J12 */
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_ecap0_pins_default>;
+};