[PATCH 2/4] arm64: dt: imx8mm: support pwm polarity inversion

[Alexander Stein]

From: Markus Niebel <Markus.Niebel at ew.tq-group.com>

The i.MX8M Mini has the same PWM IP as i.MX6 / i.MX7. This IP
and the driver supporting pwm polarity inversion. Switch CPU
device tree fragment to use 3 pwm-cells and correct board
device trees.

Signed-off-by: Markus Niebel <Markus.Niebel at ew.tq-group.com>
Signed-off-by: Alexander Stein <alexander.stein at ew.tq-group.com>
---
 .../boot/dts/freescale/imx8mm-data-modul-edm-sbc.dts      | 2 +-
 arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi             | 2 +-
 arch/arm64/boot/dts/freescale/imx8mm.dtsi                 | 8 ++++----
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-data-modul-edm-sbc.dts b/arch/arm64/boot/dts/freescale/imx8mm-data-modul-edm-sbc.dts
index 154116d01c94..fbc9cc23700a 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-data-modul-edm-sbc.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-data-modul-edm-sbc.dts
@@ -35,7 +35,7 @@ backlight: backlight {
 		brightness-levels = <0 1 10 20 30 40 50 60 70 75 80 90 100>;
 		default-brightness-level = <7>;
 		enable-gpios = <&gpio3 0 GPIO_ACTIVE_HIGH>;
-		pwms = <&pwm1 0 5000000>;
+		pwms = <&pwm1 0 5000000 0>;
 		/* Disabled by default, unless display board plugged in. */
 		status = "disabled";
 	};
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
index 6a209395452a..c42b966f7a64 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
@@ -61,7 +61,7 @@ reg_usdhc2_vmmc: regulator-usdhc2 {
 
 	backlight: backlight {
 		compatible = "pwm-backlight";
-		pwms = <&pwm1 0 5000000>;
+		pwms = <&pwm1 0 5000000 0>;
 		brightness-levels = <0 255>;
 		num-interpolated-steps = <255>;
 		default-brightness-level = <250>;
diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index 1ee05677c2dd..1bf070473829 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -758,7 +758,7 @@ pwm1: pwm at 30660000 {
 				clocks = <&clk IMX8MM_CLK_PWM1_ROOT>,
 					<&clk IMX8MM_CLK_PWM1_ROOT>;
 				clock-names = "ipg", "per";
-				#pwm-cells = <2>;
+				#pwm-cells = <3>;
 				status = "disabled";
 			};
 
@@ -769,7 +769,7 @@ pwm2: pwm at 30670000 {
 				clocks = <&clk IMX8MM_CLK_PWM2_ROOT>,
 					 <&clk IMX8MM_CLK_PWM2_ROOT>;
 				clock-names = "ipg", "per";
-				#pwm-cells = <2>;
+				#pwm-cells = <3>;
 				status = "disabled";
 			};
 
@@ -780,7 +780,7 @@ pwm3: pwm at 30680000 {
 				clocks = <&clk IMX8MM_CLK_PWM3_ROOT>,
 					 <&clk IMX8MM_CLK_PWM3_ROOT>;
 				clock-names = "ipg", "per";
-				#pwm-cells = <2>;
+				#pwm-cells = <3>;
 				status = "disabled";
 			};
 
@@ -791,7 +791,7 @@ pwm4: pwm at 30690000 {
 				clocks = <&clk IMX8MM_CLK_PWM4_ROOT>,
 					 <&clk IMX8MM_CLK_PWM4_ROOT>;
 				clock-names = "ipg", "per";
-				#pwm-cells = <2>;
+				#pwm-cells = <3>;
 				status = "disabled";
 			};
 
-- 
2.25.1