Hi,
On Sat, Mar 04, 2017 at 09:43:59PM -0800, Tony Lindgren wrote:
> The LCD panel on droid 4 is a command mode LCD. The binding follows
> the standard omapdrm binding and the changes needed for omapdrm command
> mode panels are posted separately.
>
> Cc: devicetree@xxxxxxxxxxxxxxx
> Cc: Marcel Partap <mpartap@xxxxxxx>
> Cc: Michael Scott <michael.scott@xxxxxxxxxx>
> Cc: Sebastian Reichel <sre@xxxxxxxxxx>
> Cc: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
Tested-By: Sebastian Reichel <sre@xxxxxxxxxx>
With a non-modular kernel lcd is not working with omapdrm if HDMI
is enabled. After dropping HDMI in droid4's dts file everything
worked as expected. I assume both work properly with a modular
kernel?
-- Sebastian
> ---
> arch/arm/boot/dts/omap4-droid4-xt894.dts | 60 ++++++++++++++++++++++++++++++++
> 1 file changed, 60 insertions(+)
>
> diff --git a/arch/arm/boot/dts/omap4-droid4-xt894.dts b/arch/arm/boot/dts/omap4-droid4-xt894.dts
> --- a/arch/arm/boot/dts/omap4-droid4-xt894.dts
> +++ b/arch/arm/boot/dts/omap4-droid4-xt894.dts
> @@ -17,6 +17,11 @@
> stdout-path = &uart3;
> };
>
> + aliases {
> + display0 = &lcd0;
> + display1 = &hdmi0;
> + };
> +
> /*
> * We seem to have only 1021 MB accessible, 1021 - 1022 is locked,
> * then 1023 - 1024 seems to contain mbm. For SRAM, see the notes
> @@ -66,6 +71,17 @@
> regulator-always-on;
> };
>
> + /* LCD regulator from sw5 source */
> + lcd_regulator: regulator-lcd {
> + compatible = "regulator-fixed";
> + regulator-name = "lcd";
> + regulator-min-microvolt = <5050000>;
> + regulator-max-microvolt = <5050000>;
> + gpio = <&gpio4 0 GPIO_ACTIVE_HIGH>; /* gpio96 */
> + enable-active-high;
> + vin-supply = <&sw5>;
> + };
> +
> /* This is probably coming straight from the battery.. */
> wl12xx_vmmc: regulator-wl12xx {
> compatible = "regulator-fixed";
> @@ -111,6 +127,50 @@
> };
> };
>
> +&dsi1 {
> + status = "okay";
> + vdd-supply = <&vcsi>;
> +
> + port {
> + dsi1_out_ep: endpoint {
> + remote-endpoint = <&lcd0_in>;
> + lanes = <0 1 2 3 4 5>;
> + };
> + };
> +
> + lcd0: display {
> + compatible = "panel-dsi-cm";
> + label = "lcd0";
> + vddi-supply = <&lcd_regulator>;
> + reset-gpios = <&gpio4 5 GPIO_ACTIVE_HIGH>; /* gpio101 */
> +
> + panel-timing {
> + clock-frequency = <0>; /* Calculated by dsi */
> +
> + hback-porch = <2>;
> + hactive = <540>;
> + hfront-porch = <0>;
> + hsync-len = <2>;
> +
> + vback-porch = <1>;
> + vactive = <960>;
> + vfront-porch = <0>;
> + vsync-len = <1>;
> +
> + hsync-active = <0>;
> + vsync-active = <0>;
> + de-active = <1>;
> + pixelclk-active = <1>;
> + };
> +
> + port {
> + lcd0_in: endpoint {
> + remote-endpoint = <&dsi1_out_ep>;
> + };
> + };
> + };
> +};
> +
> /* L3_2 interconnect is unused, SRAM, GPMC and L3_ICLK2 disabled */
> &gpmc {
> status = "disabled";
> --
> 2.11.1
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