arm64: dt: imx8mp: support pwm polarity inversion

The i.MX8M Plus 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.

Tested on MBa8MPxL mainboard.

Signed-off-by: Markus Niebel <Markus.Niebel@ew.tq-group.com>
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index ed75bd30d9afb8e4642935c1cc4b9a7b9f58654b..d9542dfff83fba7888c8477d270114b8542df639 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -615,7 +615,7 @@
                                clocks = <&clk IMX8MP_CLK_PWM1_ROOT>,
                                         <&clk IMX8MP_CLK_PWM1_ROOT>;
                                clock-names = "ipg", "per";
-                               #pwm-cells = <2>;
+                               #pwm-cells = <3>;
                                status = "disabled";
                        };
 
@@ -626,7 +626,7 @@
                                clocks = <&clk IMX8MP_CLK_PWM2_ROOT>,
                                         <&clk IMX8MP_CLK_PWM2_ROOT>;
                                clock-names = "ipg", "per";
-                               #pwm-cells = <2>;
+                               #pwm-cells = <3>;
                                status = "disabled";
                        };
 
@@ -637,7 +637,7 @@
                                clocks = <&clk IMX8MP_CLK_PWM3_ROOT>,
                                         <&clk IMX8MP_CLK_PWM3_ROOT>;
                                clock-names = "ipg", "per";
-                               #pwm-cells = <2>;
+                               #pwm-cells = <3>;
                                status = "disabled";
                        };
 
@@ -648,7 +648,7 @@
                                clocks = <&clk IMX8MP_CLK_PWM4_ROOT>,
                                         <&clk IMX8MP_CLK_PWM4_ROOT>;
                                clock-names = "ipg", "per";
-                               #pwm-cells = <2>;
+                               #pwm-cells = <3>;
                                status = "disabled";
                        };