From: Nishanth Menon <nm@xxxxxx>
Add support for HDMI audio and video output.
Beagleplay uses mcasp1 for its audio output, and ITE-IT66121 as its
on-board HDMI encoder.
The HDMI transmitter uses the DPI output from the VP2 of DSS as its
source and forwards the HDMI signals to the on-board Type-A HDMI
connector.
Signed-off-by: Nishanth Menon <nm@xxxxxx>
[a-bhatia1: Edit sound node properties]
Signed-off-by: Aradhya Bhatia <a-bhatia1@xxxxxx>
---
.../arm64/boot/dts/ti/k3-am625-beagleplay.dts | 119 ++++++++++++++++++
1 file changed, 119 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts b/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts
index 63893d868623..93da57949b07 100644
--- a/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts
+++ b/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts
@@ -192,6 +192,34 @@ usr: button-usr {
};
+ hdmi0: connector {
+ compatible = "hdmi-connector";
+ label = "hdmi";
+ type = "a";
+ port {
+ hdmi_connector_in: endpoint {
+ remote-endpoint = <&it66121hdmitx_out>;
+ };
+ };
+ };
+
+ sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "it66121 HDMI";
+ simple-audio-card,format = "i2s";
+ simple-audio-card,bitclock-master = <&hdmi_dailink_master>;
+ simple-audio-card,frame-master = <&hdmi_dailink_master>;
+
+ hdmi_dailink_master: simple-audio-card,cpu {
+ sound-dai = <&mcasp1>;
+ system-clock-direction-out;
+ };
+
+ simple-audio-card,codec {
+ sound-dai = <&it66121hdmitx>;
+ };
+ };
+
/* Workaround for errata i2329 - just use mdio bitbang */
mdio0: mdio {
compatible = "virtual,mdio-gpio";
@@ -480,6 +508,24 @@ AM62X_IOPAD(0x02a8, PIN_OUTPUT, 0) /* (AE4) OLDI0_CLK1N */
AM62X_IOPAD(0x02a4, PIN_OUTPUT, 0) /* (AD5) OLDI0_CLK1P */
>;
};
+
+ hdmi_gpio_pins_default: hdmi-gpio-default-pins {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x0094, PIN_INPUT_PULLUP | PIN_DEBOUNCE_CONF6, 7) /* (N20) GPMC0_BE1n.GPIO0_36 */
+ AM62X_IOPAD(0x0054, PIN_OUTPUT_PULLUP, 7) /* (P21) GPMC0_AD6.GPIO0_21 */
+ >;
+ };
+
+ mcasp_hdmi_pins_default: mcasp-hdmi-default-pins {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x0090, PIN_INPUT, 2) /* (M24) GPMC0_BE0n_CLE.MCASP1_ACLKX */
+ AM62X_IOPAD(0x0098, PIN_INPUT, 2) /* (U23) GPMC0_WAIT0.MCASP1_AFSX */
+ AM62X_IOPAD(0x008c, PIN_OUTPUT, 2) /* (L25) GPMC0_WEn.MCASP1_AXR0 */
+ AM62X_IOPAD(0x0088, PIN_INPUT, 2) /* (L24) GPMC0_OEn_REn.MCASP1_AXR1 */
+ AM62X_IOPAD(0x0084, PIN_INPUT, 2) /* (L23) GPMC0_ADVn_ALE.MCASP1_AXR2 */
+ AM62X_IOPAD(0x007c, PIN_INPUT, 2) /* (P25) GPMC0_CLK.MCASP1_AXR3 */
+ >;
+ };
};
&mcu_pmx0 {
@@ -728,6 +774,46 @@ &main_i2c2 {
pinctrl-0 = <&i2c2_1v8_pins_default>;
clock-frequency = <100000>;
status = "okay";
+
+ it66121hdmitx: hdmitx@4c {
+ compatible = "ite,it66121";
+ pinctrl-names = "default";
+ pinctrl-0 = <&hdmi_gpio_pins_default>;
+ reg = <0x4c>;
+
+ #sound-dai-cells = <0>;
+
+ interrupt-parent = <&main_gpio0>;
+ interrupts = <36 IRQ_TYPE_EDGE_FALLING>;
+
+ vcn33-supply = <&vdd_3v3>;
+ vcn18-supply = <&buck2_reg>;
+ vrf12-supply = <&buck3_reg>;
+
+ reset-gpios = <&main_gpio0 21 GPIO_ACTIVE_LOW>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ it66121hdmitx_in: endpoint {
+ bus-width = <24>;
+ remote-endpoint = <&dpi1_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ it66121hdmitx_out: endpoint {
+ remote-endpoint = <&hdmi_connector_in>;
+ };
+ };
+ };
+ };
};
&main_i2c3 {
@@ -819,3 +905,36 @@ &dss {
pinctrl-names = "default";
pinctrl-0 = <&dss0_pins_default &oldi0_pins_default>;
};
+
+&dss_ports {
+ /* VP2: DPI Output */
+ port@1 {
+ reg = <1>;
+
+ dpi1_out: endpoint {
+ remote-endpoint = <&it66121hdmitx_in>;
+ };
+ };
+};
+
+&mcasp1 {
+ status = "okay";
+ #sound-dai-cells = <0>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&mcasp_hdmi_pins_default>;
+
+ auxclk-fs-ratio = <2177>;
+
+ op-mode = <0>; /* MCASP_IIS_MODE */
+ tdm-slots = <2>;
+
+ serial-dir = < /* 0: INACTIVE, 1: TX, 2: RX */
+ 1 0 0 0
+ 0 0 0 0
+ 0 0 0 0
+ 0 0 0 0
+ >;
+ tx-num-evt = <32>;
+ rx-num-evt = <32>;
+};
--
2.40.1
