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ARM: dts: iwg22d-sodimm: Enable LCD panel 

On the Generic SODIMM Development Platform there is an RGB LCD panel
directly connected to the DU output. It uses the TPU0 as backlight, one
GPIO pull-up configuration for power enable, R[2:7], G[2:7], B[2:7],
VSYNC, HSYNC, DU0_DISP and, DU0_CLK as inputs.

There is no encoder between the DU and the panel, therefore the default
connector driver is used.

The two variants of the iW-G22D should be mutually exclusive, therefore
this patch also disables the RGB LCD display when the HDMI extension board
is used.

Signed-off-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
Link: https://lore.kernel.org/r/1583239490-8837-1-git-send-email-marian-cristian.rotariu.rb@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Marian-Cristian Rotariu 2020-03-03 12:44:50 +00:00 committed by Geert Uytterhoeven
parent 9e1232631d
commit 7f61dff1ed
2 changed files with 66 additions and 0 deletions
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6
arch/arm/boot/dts/r8a7745-iwg22d-sodimm-dbhd-ca.dts
View File

@ -108,6 +108,12 @@ adv7511_out: endpoint {
};
};
&lcd_panel {
status = "disabled";
/delete-node/ port;
};
&pfc {
can1_pins: can1 {
groups = "can1_data_b";

60
arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts
View File

@ -30,6 +30,7 @@
/dts-v1/;
#include "r8a7745-iwg22m.dtsi"
#include <dt-bindings/pwm/pwm.h>
/ {
model = "iWave Systems RainboW-G22D-SODIMM board based on RZ/G1E";
@ -78,6 +79,49 @@ vccq_sdhi0: regulator-vccq-sdhi0 {
gpios-states = <1>;
states = <3300000 1>, <1800000 0>;
};
vccq_panel: regulator-vccq-panel {
compatible = "regulator-fixed";
regulator-name = "Panel VccQ";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpio1 13 GPIO_ACTIVE_LOW>;
enable-active-high;
};
backlight_lcd: backlight {
compatible = "pwm-backlight";
pwms = <&tpu 3 5000000 PWM_POLARITY_INVERTED>;
brightness-levels = <0 4 8 16 32 64 128 255>;
default-brightness-level = <7>;
};
lcd_panel: lcd {
compatible = "edt,etm043080dh6gp";
power-supply = <&vccq_panel>;
backlight = <&backlight_lcd>;
port {
lcd_in: endpoint {
remote-endpoint = <&du_out_rgb0>;
};
};
};
};
&du {
pinctrl-0 = <&du0_pins>;
pinctrl-names = "default";
status = "okay";
ports {
port@0 {
endpoint {
remote-endpoint = <&lcd_in>;
};
};
};
};
&avb {
@ -149,11 +193,21 @@ avb_pins: avb {
function = "avb";
};
backlight_pins: backlight {
groups = "tpu_to3_c";
function = "tpu";
};
can0_pins: can0 {
groups = "can0_data";
function = "can0";
};
du0_pins: du0 {
groups = "du0_rgb666", "du0_sync", "du0_disp", "du0_clk0_out";
function = "du0";
};
hscif1_pins: hscif1 {
groups = "hscif1_data", "hscif1_ctrl";
function = "hscif1";
@ -229,6 +283,12 @@ &ssi4 {
shared-pin;
};
&tpu {
pinctrl-0 = <&backlight_pins>;
pinctrl-names = "default";
status = "okay";
};
&usbphy {
status = "okay";
};