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arm64: dt: imx8mm: support pwm polarity inversion

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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@ew.tq-group.com>
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Markus Niebel 2022-05-02 11:48:59 +02:00 committed by Shawn Guo
parent 15ca3f00a1
commit 957aef026c
3 changed files with 6 additions and 6 deletions
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2
arch/arm64/boot/dts/freescale/imx8mm-data-modul-edm-sbc.dts
View File

@ -35,7 +35,7 @@
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";
};

2
arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
View File

@ -61,7 +61,7 @@
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>;

8
arch/arm64/boot/dts/freescale/imx8mm.dtsi
View File

@ -758,7 +758,7 @@
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 @@
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 @@
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 @@
clocks = <&clk IMX8MM_CLK_PWM4_ROOT>,
<&clk IMX8MM_CLK_PWM4_ROOT>;
clock-names = "ipg", "per";
#pwm-cells = <2>;
#pwm-cells = <3>;
status = "disabled";
};