[PATCH RFC v4 8/8] ARM: dts: am335x-boneblack: Add HDMI audio support

From: Jyri Sarha <jsarha@ti.com>
To: dri-devel@lists.freedesktop.org, airlied@linux.ie,
	linux-omap@vger.kernel.org, devicetree@vger.kernel.org,
	bcousson@baylibre.com, alsa-devel@alsa-project.org
Cc: peter.ujfalusi@ti.com, tony@atomide.com, broonie@kernel.org,
	Jyri Sarha <jsarha@ti.com>,
	liam.r.girdwood@linux.intel.com, tomi.valkeinen@ti.com,
	rmk+kernel@arm.linux.org.uk
Subject: [PATCH RFC v4 8/8] ARM: dts: am335x-boneblack: Add HDMI audio support
Date: Fri, 18 Sep 2015 14:06:45 +0300	[thread overview]
Message-ID: <fe32841250c27a3725633b816d0cfbd146333f6d.1442572860.git.jsarha@ti.com> (raw)
In-Reply-To: <cover.1442572860.git.jsarha@ti.com>

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>
---
 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..05347dc 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 = <32>;
+	rx-num-evt = <32>;
+
+	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

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