[PATCH RFC v3 7/7] ARM: dts: am335x-boneblack: Add HDMI audio support

Jyri Sarha
2015-08-14T09:30:45Z

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-l0cyMroinI0@public.gmane.org>
---
arch/arm/boot/dts/am335x-boneblack.dts | 90 ++++++++++++++++++++++++++++++++--
1 file changed, 86 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
index eadbba3..7d3e899 100644
--- a/arch/arm/boot/dts/am335x-boneblack.dts
+++ b/arch/arm/boot/dts/am335x-boneblack.dts
@@ -64,6 +64,16 @@
0x1b0 0x03 /* xdma_event_intr0, OMAP_MUX_MODE3 | AM33XX_PIN_OUTPUT */
>;
};
+
+ mcasp0_pins: mcasp0_pins {
+ pinctrl-single,pins = <
+ 0x1ac (PIN_INPUT_PULLUP | MUX_MODE0) /* mcasp0_ahclkx.mcasp0_ahclkx */
+ 0x19c (PIN_OUTPUT_PULLDOWN | MUX_MODE2) /* mcasp0_ahclkr.mcasp0_axr2 */
+ 0x194 (PIN_OUTPUT_PULLUP | MUX_MODE0) /* mcasp0_fsx.mcasp0_fsx */
+ 0x190 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mcasp0_aclkx.mcasp0_aclkx */
+ 0x06c (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_a11.GPIO1_27 */
+ >;
+ };
};

&lcdc {
@@ -76,17 +86,89 @@
};

&i2c0 {
- tda19988 {
+ tda19988: tda19988 {
compatible = "nxp,tda998x";
reg = <0x70>;
+
+ #sound-dai-cells = <0>;
+
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>;
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ port-type = "rgb";
+ reg = <0x230145>;
+ hdmi_0: endpoint@0 {
+ remote-endpoint = <&lcdc_0>;
+ };
};
+ port@1 {
+ port-type = "i2s";
+ reg = <0x03>;
+ tda19988_i2s: endpoint {
+ remote-endpoint = <&mcasp0_i2s>;
+ };
+ };
+ };
+ };
+};
+
+&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 = <1>;
+ rx-num-evt = <1>;
+
+ port {
+ mcasp0_i2s: endpoint {
+ remote-endpoint = <&tda19988_i2s>;
+ };
+ };
+};
+
+/ {
+ 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>;
};
};
};
--
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html