diff options
| author | Liu Ying <victor.liu@nxp.com> | 2020-03-30 10:19:35 +0800 |
|---|---|---|
| committer | Liu Ying <victor.liu@nxp.com> | 2020-04-10 15:24:01 +0800 |
| commit | a1c49e1eea2dbd5f4683f332949d088a6d60d797 (patch) | |
| tree | 355c49aae66ce983dbe20a72c63635aaf23744b4 | |
| parent | 62408b1461b62c6a6eb9a7eece98f41b66ec4624 (diff) | |
LF-1189-14 arm64: imx8qxp-mek: Add backlight support for LCDIF display
This patch adds backlight support for LCDIF display on
i.MX8qxp mek platform.
The backlight brightness is controlled by PWM.
Reviewed-by: Robert Chiras <robert.chiras@nxp.com>
Tested-by: Robert Chiras <robert.chiras@nxp.com>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8x-mek.dtsi | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8x-mek.dtsi b/arch/arm64/boot/dts/freescale/imx8x-mek.dtsi index 05eeae620445..d55b57cb6d16 100644 --- a/arch/arm64/boot/dts/freescale/imx8x-mek.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8x-mek.dtsi @@ -17,6 +17,24 @@ pinctrl-2 = <&pinctrl_wifi>; }; + lcdif_backlight: lcdif-backlight { + compatible = "pwm-backlight"; + pwms = <&adma_pwm 0 100000 0>; + + brightness-levels = < 0 1 2 3 4 5 6 7 8 9 + 10 11 12 13 14 15 16 17 18 19 + 20 21 22 23 24 25 26 27 28 29 + 30 31 32 33 34 35 36 37 38 39 + 40 41 42 43 44 45 46 47 48 49 + 50 51 52 53 54 55 56 57 58 59 + 60 61 62 63 64 65 66 67 68 69 + 70 71 72 73 74 75 76 77 78 79 + 80 81 82 83 84 85 86 87 88 89 + 90 91 92 93 94 95 96 97 98 99 + 100>; + default-brightness-level = <80>; + }; + lvds_backlight0: lvds_backlight@0 { compatible = "pwm-backlight"; pwms = <&pwm_mipi_lvds0 0 100000 0>; |