linux-kernel - [PATCH 04/15] ARM64: dts: imx8mp-evk: add pwm support

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Date:   Thu, 20 Oct 2022 17:59:23 +0800
From:   "Peng Fan (OSS)" <peng.fan@....nxp.com>
To:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de
Cc:     kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Clark Wang <xiaoning.wang@....com>,
        Fugang Duan <fugang.duan@....com>, Peng Fan <peng.fan@....com>
Subject: [PATCH 04/15] ARM64: dts: imx8mp-evk: add pwm support

From: Clark Wang <xiaoning.wang@....com>

Enable pwm1/2/4 support.
Enable pwm1 on pin GPIO1_IO01 for DSI_BL_PWM
       pwm2 on pin GPIO1_IO11 for LVDS_BL_PWM
       pwm4 on pin SAI5_RXFS for J21-32

Acked-by: Fugang Duan <fugang.duan@....com>
Signed-off-by: Clark Wang <xiaoning.wang@....com>
Signed-off-by: Peng Fan <peng.fan@....com>
---
 arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 36 ++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
index a4cddc5a8620..2e29bb3c041c 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
@@ -101,6 +101,24 @@ &A53_3 {
 	cpu-supply = <&reg_arm>;
 };
 
+&pwm1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm1>;
+	status = "okay";
+};
+
+&pwm2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm2>;
+	status = "okay";
+};
+
+&pwm4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm4>;
+	status = "okay";
+};
+
 &eqos {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_eqos>;
@@ -465,6 +483,24 @@ &wdog1 {
 };
 
 &iomuxc {
+	pinctrl_pwm1: pwm1grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_GPIO1_IO01__PWM1_OUT	0x116
+		>;
+	};
+
+	pinctrl_pwm2: pwm2grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_GPIO1_IO11__PWM2_OUT	0x116
+		>;
+	};
+
+	pinctrl_pwm4: pwm4grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SAI5_RXFS__PWM4_OUT	0x116
+		>;
+	};
+
 	pinctrl_eqos: eqosgrp {
 		fsl,pins = <
 			MX8MP_IOMUXC_ENET_MDC__ENET_QOS_MDC				0x2
-- 
2.37.1