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From:   Anson Huang <anson.huang@nxp.com>
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CC:     dl-linux-imx <linux-imx@nxp.com>
Subject: [PATCH RESEND V6 5/5] ARM: dts: imx7ulp-evk: Add backlight support
Thread-Topic: [PATCH RESEND V6 5/5] ARM: dts: imx7ulp-evk: Add backlight
 support
Thread-Index: AQHU3iLURlIAwfZNNUC6bd0m0GRtsg==
Date:   Tue, 19 Mar 2019 07:10:27 +0000
Message-ID: <1552979097-5814-6-git-send-email-Anson.Huang@nxp.com>
References: <1552979097-5814-1-git-send-email-Anson.Huang@nxp.com>
In-Reply-To: <1552979097-5814-1-git-send-email-Anson.Huang@nxp.com>
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This patch adds i.MX7ULP EVK board MIPI-DSI backlight support.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
Changes since V5:
	- change #pwm-cells to 3, add polarity settings.
---
 arch/arm/boot/dts/imx7ulp-evk.dts | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/imx7ulp-evk.dts b/arch/arm/boot/dts/imx7ulp-=
evk.dts
index a09026a..7c44ffa 100644
--- a/arch/arm/boot/dts/imx7ulp-evk.dts
+++ b/arch/arm/boot/dts/imx7ulp-evk.dts
@@ -8,6 +8,7 @@
 /dts-v1/;
=20
 #include "imx7ulp.dtsi"
+#include <dt-bindings/pwm/pwm.h>
=20
 / {
 	model =3D "NXP i.MX7ULP EVK";
@@ -22,6 +23,14 @@
 		reg =3D <0x60000000 0x40000000>;
 	};
=20
+	backlight {
+		compatible =3D "pwm-backlight";
+		pwms =3D <&pwm0 1 50000 0>;
+		brightness-levels =3D <0 20 25 30 35 40 100>;
+		default-brightness-level =3D <6>;
+		status =3D "okay";
+	};
+
 	reg_vsd_3v3: regulator-vsd-3v3 {
 		compatible =3D "regulator-fixed";
 		regulator-name =3D "VSD_3V3";
@@ -40,6 +49,12 @@
 	status =3D "okay";
 };
=20
+&pwm0 {
+	pinctrl-names =3D "default";
+	pinctrl-0 =3D <&pinctrl_pwm0>;
+	status =3D "okay";
+};
+
 &usdhc0 {
 	pinctrl-names =3D "default";
 	pinctrl-0 =3D <&pinctrl_usdhc0>;
@@ -57,6 +72,12 @@
 		bias-pull-up;
 	};
=20
+	pinctrl_pwm0: pwm0grp {
+		fsl,pins =3D <
+			IMX7ULP_PAD_PTF2__TPM4_CH1	0x2
+		>;
+	};
+
 	pinctrl_usdhc0: usdhc0grp {
 		fsl,pins =3D <
 			IMX7ULP_PAD_PTD1__SDHC0_CMD	0x43
--=20
2.7.4