diff options
| author | Liu Ying <victor.liu@nxp.com> | 2020-05-13 17:27:46 +0800 |
|---|---|---|
| committer | Liu Ying <victor.liu@nxp.com> | 2020-05-14 09:33:54 +0800 |
| commit | 027a4775693bda5ed9b2f0a07810180c60051258 (patch) | |
| tree | 3798c01baab4252c2021162af54568bb68a20869 /arch/arm64/boot/dts/freescale/imx8x-mek-dpu-lcdif.dtsi | |
| parent | 47ebfce535087ed8c7e22ddc724eeaf75862a03a (diff) | |
MLK-23981 arm64: imx8x-mek.dtsi: Enable adma_pwm node in display specific DT file
The current DT file for the i.MX8x MEK platform has a pin conflict for
IMX8QXP_SPI0_CS1 bewteen the sai1 node and the adma_pwm node(as needed
by the parallel display panel backlight control). This patch enables
the adma_pwm node in display specific DT file to avoid the conflict.
Also, the lcdif_backlight is moved to display specific as it is
referencing the adma_pwm node.
Fixes: 62408b1461b6 ("LF-1189-13 arm64: dts: imx8qxp-mek: Add adma_pwm support")
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
(cherry picked from commit 0735da29ed030b5449e3aaf22ddca7df1fabc8df)
Diffstat (limited to 'arch/arm64/boot/dts/freescale/imx8x-mek-dpu-lcdif.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8x-mek-dpu-lcdif.dtsi | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8x-mek-dpu-lcdif.dtsi b/arch/arm64/boot/dts/freescale/imx8x-mek-dpu-lcdif.dtsi index 172c0d2734be..d4fe033cb939 100644 --- a/arch/arm64/boot/dts/freescale/imx8x-mek-dpu-lcdif.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8x-mek-dpu-lcdif.dtsi @@ -48,6 +48,24 @@ }; }; }; + + 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>; + }; }; &dpu_disp1_lcdif { @@ -73,3 +91,9 @@ &lpuart1 { status = "disabled"; }; + +&adma_pwm { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_lcdifpwm>; + status = "okay"; +}; |