Hi,
On Sat, Mar 04, 2017 at 09:43:58PM -0800, Tony Lindgren wrote:
> We can get HDMI working as long as the 5V regulator is on. There is
> probably an encoder chip there too, but so far no idea what it might be.
> Let's keep the 5V HDMI regulator always enabled for now as otherwise we
> cannot detect the monitor properly.
Tested-by: Sebastian Reichel <sre@xxxxxxxxxx>
-- Sebastian
> arch/arm/boot/dts/omap4-droid4-xt894.dts | 65 ++++++++++++++++++++++++++++++++
> 1 file changed, 65 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
> @@ -35,6 +35,37 @@
> gpios = <&gpio2 18 GPIO_ACTIVE_LOW>; /* gpio50 */
> };
>
> + hdmi0: connector {
> + compatible = "hdmi-connector";
> + pinctrl-0 = <&hdmi_hpd_gpio>;
> + pinctrl-names = "default";
> + label = "hdmi";
> + type = "d";
> +
> + hpd-gpios = <&gpio2 31 GPIO_ACTIVE_HIGH>; /* gpio63 */
> +
> + port {
> + hdmi_connector_in: endpoint {
> + remote-endpoint = <&hdmi_out>;
> + };
> + };
> + };
> +
> + /*
> + * HDMI 5V regulator probably sourced from battery. Let's keep
> + * keep this as always enabled for HDMI to work until we've
> + * figured what the encoder chip is.
> + */
> + hdmi_regulator: regulator-hdmi {
> + compatible = "regulator-fixed";
> + regulator-name = "hdmi";
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + gpio = <&gpio2 27 GPIO_ACTIVE_HIGH>; /* gpio59 */
> + enable-active-high;
> + regulator-always-on;
> + };
> +
> /* This is probably coming straight from the battery.. */
> wl12xx_vmmc: regulator-wl12xx {
> compatible = "regulator-fixed";
> @@ -67,6 +98,10 @@
> };
> };
>
> +&dss {
> + status = "okay";
> +};
> +
> &gpio6 {
> touchscreen_reset {
> gpio-hog;
> @@ -81,6 +116,20 @@
> status = "disabled";
> };
>
> +&hdmi {
> + status = "okay";
> + pinctrl-0 = <&dss_hdmi_pins>;
> + pinctrl-names = "default";
> + vdda-supply = <&vdac>;
> +
> + port {
> + hdmi_out: endpoint {
> + remote-endpoint = <&hdmi_connector_in>;
> + lanes = <1 0 3 2 5 4 7 6>;
> + };
> + };
> +};
> +
> &i2c1 {
> tmp105@48 {
> compatible = "ti,tmp105";
> @@ -249,6 +298,22 @@
>
> &omap4_pmx_core {
>
> + /* hdmi_hpd.gpio_63 */
> + hdmi_hpd_gpio: pinmux_hdmi_hpd_pins {
> + pinctrl-single,pins = <
> + OMAP4_IOPAD(0x098, PIN_INPUT | MUX_MODE3)
> + >;
> + };
> +
> + /* hdmi_cec.hdmi_cec, hdmi_scl.hdmi_scl, hdmi_sda.hdmi_sda */
> + dss_hdmi_pins: pinmux_dss_hdmi_pins {
> + pinctrl-single,pins = <
> + OMAP4_IOPAD(0x09a, PIN_INPUT_PULLUP | MUX_MODE0)
> + OMAP4_IOPAD(0x09c, PIN_INPUT | MUX_MODE0)
> + OMAP4_IOPAD(0x09e, PIN_INPUT | MUX_MODE0)
> + >;
> + };
> +
> /* gpmc_ncs0.gpio_50 */
> poweroff_gpio: pinmux_poweroff_pins {
> pinctrl-single,pins = <
> --
> 2.11.1
Attachment:
signature.asc
Description: PGP signature
