arm64: dt: imx8mn: support pwm polarity inversion

The i.MX8M Nano 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.

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/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index 13c51363cc06a2c98e2dd1d6cd2271384eadb212..176abe8fe659d7b57ee0c577fca9689e7ed66ed1 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
@@ -705,7 +705,7 @@
                                clocks = <&clk IMX8MN_CLK_PWM1_ROOT>,
                                        <&clk IMX8MN_CLK_PWM1_ROOT>;
                                clock-names = "ipg", "per";
-                               #pwm-cells = <2>;
+                               #pwm-cells = <3>;
                                status = "disabled";
                        };
 
@@ -716,7 +716,7 @@
                                clocks = <&clk IMX8MN_CLK_PWM2_ROOT>,
                                         <&clk IMX8MN_CLK_PWM2_ROOT>;
                                clock-names = "ipg", "per";
-                               #pwm-cells = <2>;
+                               #pwm-cells = <3>;
                                status = "disabled";
                        };
 
@@ -727,7 +727,7 @@
                                clocks = <&clk IMX8MN_CLK_PWM3_ROOT>,
                                         <&clk IMX8MN_CLK_PWM3_ROOT>;
                                clock-names = "ipg", "per";
-                               #pwm-cells = <2>;
+                               #pwm-cells = <3>;
                                status = "disabled";
                        };
 
@@ -738,7 +738,7 @@
                                clocks = <&clk IMX8MN_CLK_PWM4_ROOT>,
                                         <&clk IMX8MN_CLK_PWM4_ROOT>;
                                clock-names = "ipg", "per";
-                               #pwm-cells = <2>;
+                               #pwm-cells = <3>;
                                status = "disabled";
                        };