ARM: dts: am335x-boneblack: Add HDMI audio support

Add HDMI audio support. Adds mcasp0_pins, clk_mcasp0_fixed,
clk_mcasp0, mcasp0, sound node, and updates the tda19988 node to
follow the new binding.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
index 55c0e954b1464427722d7bc89513af507cff6591..6bbb1fee08689182dca4e113e9e37038c9a7b055 100644 (file)
--- a/arch/arm/boot/dts/am335x-boneblack.dts
+++ b/arch/arm/boot/dts/am335x-boneblack.dts
@@ -9,6 +9,7 @@
 
 #include "am33xx.dtsi"
 #include "am335x-bone-common.dtsi"
+#include <dt-bindings/display/tda998x.h>
 
 / {
        model = "TI AM335x BeagleBone Black";
@@ -64,6 +65,16 @@
                        AM33XX_IOPAD(0x9b0, PIN_OUTPUT_PULLDOWN | MUX_MODE3)    /* xdma_event_intr0 */
                >;
        };
+
+       mcasp0_pins: mcasp0_pins {
+               pinctrl-single,pins = <
+                       AM33XX_IOPAD(0x9ac, PIN_INPUT_PULLUP | MUX_MODE0) /* mcasp0_ahcklx.mcasp0_ahclkx */
+                       AM33XX_IOPAD(0x99c, PIN_OUTPUT_PULLDOWN | MUX_MODE2) /* mcasp0_ahclkr.mcasp0_axr2*/
+                       AM33XX_IOPAD(0x994, PIN_OUTPUT_PULLUP | MUX_MODE0) /* mcasp0_fsx.mcasp0_fsx */
+                       AM33XX_IOPAD(0x990, PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mcasp0_aclkx.mcasp0_aclkx */
+                       AM33XX_IOPAD(0x86c, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_a11.GPIO1_27 */
+               >;
+       };
 };
 
 &lcdc {
@@ -76,16 +87,22 @@
 };
 
 &i2c0 {
-       tda19988 {
+       tda19988: tda19988 {
                compatible = "nxp,tda998x";
                reg = <0x70>;
+
                pinctrl-names = "default", "off";
                pinctrl-0 = <&nxp_hdmi_bonelt_pins>;
                pinctrl-1 = <&nxp_hdmi_bonelt_off_pins>;
 
-               port {
-                       hdmi_0: endpoint@0 {
-                               remote-endpoint = <&lcdc_0>;
+               #sound-dai-cells = <0>;
+               audio-ports = < TDA998x_I2S     0x03>;
+
+               ports {
+                       port@0 {
+                               hdmi_0: endpoint@0 {
+                                       remote-endpoint = <&lcdc_0>;
+                               };
                        };
                };
        };
@@ -94,3 +111,49 @@
 &rtc {
        system-power-controller;
 };
+
+&mcasp0        {
+       #sound-dai-cells = <0>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&mcasp0_pins>;
+       status = "okay";
+       op-mode = <0>;  /* MCASP_IIS_MODE */
+       tdm-slots = <2>;
+       serial-dir = <  /* 0: INACTIVE, 1: TX, 2: RX */
+                       0 0 1 0
+               >;
+       tx-num-evt = <32>;
+       rx-num-evt = <32>;
+};
+
+/ {
+       clk_mcasp0_fixed: clk_mcasp0_fixed {
+               #clock-cells = <0>;
+               compatible = "fixed-clock";
+               clock-frequency = <24576000>;
+       };
+
+       clk_mcasp0: clk_mcasp0 {
+               #clock-cells = <0>;
+               compatible = "gpio-gate-clock";
+               clocks = <&clk_mcasp0_fixed>;
+               enable-gpios = <&gpio1 27 0>; /* BeagleBone Black Clk enable on GPIO1_27 */
+       };
+
+       sound {
+               compatible = "simple-audio-card";
+               simple-audio-card,name = "TI BeagleBone Black";
+               simple-audio-card,format = "i2s";
+               simple-audio-card,bitclock-master = <&dailink0_master>;
+               simple-audio-card,frame-master = <&dailink0_master>;
+
+               dailink0_master: simple-audio-card,cpu {
+                       sound-dai = <&mcasp0>;
+                       clocks = <&clk_mcasp0>;
+               };
+
+               simple-audio-card,codec {
+                       sound-dai = <&tda19988>;
+               };
+       };
+};