Hi Marian-Cristian,
On Wed, Jan 29, 2020 at 7:58 PM Marian-Cristian Rotariu
<marian-cristian.rotariu.rb@xxxxxxxxxxxxxx> wrote:
> 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.
>
> Signed-off-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@xxxxxxxxxxxxxx>
> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
Thanks for your patch!
> --- a/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts
> +++ b/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts
> @@ -79,6 +79,52 @@
> 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 {
> + compatible = "pwm-backlight";
> + pwms = <&tpu 3 5000000 GPIO_ACTIVE_LOW>;
> + brightness-levels = <0 4 8 16 32 64 128 255>;
> + default-brightness-level = <7>;
> + pinctrl-0 = <&backlight_pins>;
> + pinctrl-names = "default";
> + };
> +
> + lcd {
> + compatible = "edt,etm043080dh6gp", "simple-panel";
According to the latest panel-simple.yaml, the "simple-panel" should be
dropped...
> + power-supply = <&vccq_panel>;
> +
> + ports {
> + port@0 {
> + lcd_in: endpoint {
> + remote-endpoint = <&du_out_rgb0>;
> + };
> + };
> + };
... and there should only be a single "port".
> + };
> +};
> +
> +&du {
> + pinctrl-0 = <&du0_pins>;
> + pinctrl-names = "default";
> +
> + status = "okay";
> +
> + ports {
> + port@0 {
> + endpoint {
> + remote-endpoint = <&lcd_in>;
> + };
> + };
> + };
> };
>
> &avb {
> @@ -150,11 +196,21 @@
> function = "avb";
> };
>
> + backlight_pins: backlight {
> + renesas,groups = "tpu_to3";
According to my schematics, DISP_BL_GPIO is connected to TPUTO3_C(GP0_21),
so this should be "tpu_to3_c".
> + renesas,function = "tpu";
> + };
> +
> can0_pins: can0 {
> groups = "can0_data";
> function = "can0";
> };
>
> + du0_pins: du0 {
> + renesas,groups = "du0_rgb666", "du0_sync", "du0_disp", "du0_clk0_out";
> + renesas,function = "du0";
> + };
> +
> hscif1_pins: hscif1 {
> groups = "hscif1_data", "hscif1_ctrl";
> function = "hscif1";
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
