diff options
| author | Bai Ping <ping.bai@nxp.com> | 2017-03-21 12:08:27 +0800 |
|---|---|---|
| committer | Jason Liu <jason.hui.liu@nxp.com> | 2019-02-12 10:26:08 +0800 |
| commit | 73da82ac881fde8c7d0491e02aab303a4ffc5de2 (patch) | |
| tree | ceca4fd5183a390484214b59e6a4414a74a58c87 /arch/arm/boot/dts/imx7ulp-evk.dts | |
| parent | c8ca021b89f8311f3aadc8073a6b06dca7de0f48 (diff) | |
MLK-14238-05 ARM: dts: imx: Add PWM backlight support on i.mx7ulp evk
Add PWM backlight support on i.MX7ULP EVK board.
Signed-off-by: Bai Ping <ping.bai@nxp.com>
[Octavian: fix checkpatch warnings]
Signed-off-by: Octavian Purdila <octavian.purdila@nxp.com>
Diffstat (limited to 'arch/arm/boot/dts/imx7ulp-evk.dts')
| -rw-r--r-- | arch/arm/boot/dts/imx7ulp-evk.dts | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/arch/arm/boot/dts/imx7ulp-evk.dts b/arch/arm/boot/dts/imx7ulp-evk.dts index e616bf4e2480..c4bbf7ef2c77 100644 --- a/arch/arm/boot/dts/imx7ulp-evk.dts +++ b/arch/arm/boot/dts/imx7ulp-evk.dts @@ -33,11 +33,10 @@ }; backlight { - compatible = "gpio-backlight"; - pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_backlight>; - gpios = <&gpio3 2 GPIO_ACTIVE_HIGH>; - default-on; + compatible = "pwm-backlight"; + pwms = <&pwm0 1 5000000>; + brightness-levels = <0 4 8 16 32 64 128 255>; + default-brightness-level = <6>; status = "okay"; }; @@ -197,9 +196,9 @@ >; }; - pinctrl_backlight: backlight_grp { + pinctrl_pwm0: pwm0_grp { fsl,pins = < - IMX7ULP_PAD_PTF2__PTF2 0x20100 + IMX7ULP_PAD_PTF2__TPM4_CH1 0x403 >; }; @@ -460,6 +459,13 @@ status = "disabled"; }; +&pwm0 { + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&pinctrl_pwm0>; + pinctrl-1 = <&pinctrl_pwm0>; + status = "okay"; +}; + &rpmsg{ /* * 64K for one rpmsg instance, default using 2 rpmsg instances: |