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ARM: dts: da850-evm: Enable LCD and backlight

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When using the board files the LCD works, but not with the DT.
This adds enables the original da850-evm to work with the same
LCD in device tree mode.

The EVM has a gpio for backlight regulator and a PWM for dimming
the backlight.  The LCD and the vpif display pins are mutually
exclusive, so if using the LCD, do not load the vpif driver.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
This commit is contained in:
Adam Ford 2018-05-18 15:33:35 -05:00 committed by Sekhar Nori
parent 4be9e67329
commit 8ae024497b
1 changed files with 82 additions and 1 deletions
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83
arch/arm/boot/dts/da850-evm.dts
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@ -27,6 +27,65 @@ aliases {
spi0 = &spi1;
};
backlight: backlight-pwm {
pinctrl-names = "default";
pinctrl-0 = <&ecap2_pins>;
power-supply = <&backlight_lcd>;
compatible = "pwm-backlight";
/*
* The PWM here corresponds to production hardware. The
* schematic needs to be 1015171 (15 March 2010), Rev A
* or newer.
*/
pwms = <&ecap2 0 50000 0>;
brightness-levels = <0 10 20 30 40 50 60 70 80 90 99>;
default-brightness-level = <7>;
};
panel {
compatible = "ti,tilcdc,panel";
pinctrl-names = "default";
pinctrl-0 = <&lcd_pins>;
/*
* The vpif and the LCD are mutually exclusive.
* To enable VPIF, change the status below to 'disabled' then
* then change the status of the vpif below to 'okay'
*/
status = "okay";
enable-gpios = <&gpio 40 GPIO_ACTIVE_HIGH>; /* lcd_panel_pwr */
panel-info {
ac-bias = <255>;
ac-bias-intrpt = <0>;
dma-burst-sz = <16>;
bpp = <16>;
fdd = <0x80>;
sync-edge = <0>;
sync-ctrl = <1>;
raster-order = <0>;
fifo-th = <0>;
};
display-timings {
native-mode = <&timing0>;
timing0: 480x272 {
clock-frequency = <9000000>;
hactive = <480>;
vactive = <272>;
hfront-porch = <3>;
hback-porch = <2>;
hsync-len = <42>;
vback-porch = <3>;
vfront-porch = <4>;
vsync-len = <11>;
hsync-active = <0>;
vsync-active = <0>;
de-active = <1>;
pixelclk-active = <1>;
};
};
};
vbat: fixedregulator0 {
compatible = "regulator-fixed";
regulator-name = "vbat";
@ -35,6 +94,15 @@ vbat: fixedregulator0 {
regulator-boot-on;
};
backlight_lcd: backlight-regulator {
compatible = "regulator-fixed";
regulator-name = "lcd_backlight_pwr";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpio 47 GPIO_ACTIVE_HIGH>; /* lcd_backlight_pwr */
enable-active-high;
};
sound {
compatible = "simple-audio-card";
simple-audio-card,name = "DA850/OMAP-L138 EVM";
@ -63,6 +131,10 @@ link0_codec: simple-audio-card,codec {
};
};
&ecap2 {
status = "okay";
};
&pmx_core {
status = "okay";
@ -113,6 +185,10 @@ &rtc0 {
status = "okay";
};
&lcdc {
status = "okay";
};
&i2c0 {
status = "okay";
clock-frequency = <100000>;
@ -340,5 +416,10 @@ &usb1 {
&vpif {
pinctrl-names = "default";
pinctrl-0 = <&vpif_capture_pins>, <&vpif_display_pins>;
status = "okay";
/*
* The vpif and the LCD are mutually exclusive.
* To enable VPIF, disable the ti,tilcdc,panel then
* change the status below to 'okay'
*/
status = "disabled";
};