[PATCH v4 1/2] ARM: dts: da850-lcdk: add the dumb-vga-dac node
Laurent Pinchart
laurent.pinchart at ideasonboard.com
Tue Dec 6 05:42:04 PST 2016
Hi Bartosz,
Thank you for the patch.
On Tuesday 06 Dec 2016 14:13:45 Bartosz Golaszewski wrote:
> Add the dumb-vga-dac node to the board DT together with corresponding
> ports and vga connector. This allows to retrieve the edid info from
> the display automatically.
>
> Signed-off-by: Bartosz Golaszewski <bgolaszewski at baylibre.com>
> ---
> arch/arm/boot/dts/da850-lcdk.dts | 69 ++++++++++++++++++++++++++++++++++++
> 1 file changed, 69 insertions(+)
>
> diff --git a/arch/arm/boot/dts/da850-lcdk.dts
> b/arch/arm/boot/dts/da850-lcdk.dts index afcb482..ca437c1 100644
> --- a/arch/arm/boot/dts/da850-lcdk.dts
> +++ b/arch/arm/boot/dts/da850-lcdk.dts
> @@ -51,6 +51,51 @@
> system-clock-frequency = <24576000>;
> };
> };
> +
> + vga-bridge {
> + compatible = "dumb-vga-dac";
Please don't. The board uses a THS8135, which has a few control signals.
They're not used on this board so you can certainly rely on the dumb-vga-dac
driver, but you should not use that compatible string. You should instead add
DT bindings for ti,ths8135 and add that compatible string to the dumb-vga-dac
driver.
The rest looks good to me.
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port at 0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> +
> + vga_bridge_in: endpoint at 0 {
> + reg = <0>;
> + remote-endpoint = <&display_out_vga>;
> + };
> + };
> +
> + port at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> +
> + vga_bridge_out: endpoint at 0 {
> + reg = <0>;
> + remote-endpoint = <&vga_con_in>;
> + };
> + };
> + };
> + };
> +
> + vga {
> + compatible = "vga-connector";
> +
> + ddc-i2c-bus = <&i2c0>;
> +
> + port {
> + vga_con_in: endpoint {
> + remote-endpoint = <&vga_bridge_out>;
> + };
> + };
> + };
> };
>
> &pmx_core {
> @@ -236,3 +281,27 @@
> &memctrl {
> status = "okay";
> };
> +
> +&display {
> + status = "okay";
> + pinctrl-names = "default";
> + pinctrl-0 = <&lcd_pins>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + display_out: port at 1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + };
> +};
> +
> +&display_out {
> + display_out_vga: endpoint at 0 {
> + reg = <0>;
> + remote-endpoint = <&vga_bridge_in>;
> + };
> +};
--
Regards,
Laurent Pinchart
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