ARM: dts: meson: Add the AIU audio controller

Add the AIU audio controller to the Amlogic Meson6/8/8b/8m2 SoC DT. This
provides I2S and SPDIF outputs as well as codec glues for the internal
HDMI controller.
Also add the clock inputs and pin mux definitions on Meson8/8b/8m2. On
Meson6 this is omitted because we neither have a clock nor pin
controller node there yet.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20210717233030.331273-2-martin.blumenstingl@googlemail.com

1 files changed, 63 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi
index 686c7b7c79d5..f80ddc98d3a2 100644
--- a/arch/arm/boot/dts/meson8.dtsi
+++ b/arch/arm/boot/dts/meson8.dtsi
@@ -317,6 +317,29 @@
 	};
 }; /* end of / */
 
+&aiu {
+	compatible = "amlogic,aiu-meson8", "amlogic,aiu";
+	clocks = <&clkc CLKID_AIU_GLUE>,
+		 <&clkc CLKID_I2S_OUT>,
+		 <&clkc CLKID_AOCLK_GATE>,
+		 <&clkc CLKID_CTS_AMCLK>,
+		 <&clkc CLKID_MIXER_IFACE>,
+		 <&clkc CLKID_IEC958>,
+		 <&clkc CLKID_IEC958_GATE>,
+		 <&clkc CLKID_CTS_MCLK_I958>,
+		 <&clkc CLKID_CTS_I958>;
+	clock-names = "pclk",
+		      "i2s_pclk",
+		      "i2s_aoclk",
+		      "i2s_mclk",
+		      "i2s_mixer",
+		      "spdif_pclk",
+		      "spdif_aoclk",
+		      "spdif_mclk",
+		      "spdif_mclk_sel";
+	resets = <&reset RESET_AIU>;
+};
+
 &aobus {
 	pmu: pmu@e0 {
 		compatible = "amlogic,meson8-pmu", "syscon";
@@ -340,6 +363,38 @@
 			gpio-ranges = <&pinctrl_aobus 0 0 16>;
 		};
 
+		i2s_am_clk_pins: i2s-am-clk-out {
+			mux {
+				groups = "i2s_am_clk_out_ao";
+				function = "i2s_ao";
+				bias-disable;
+			};
+		};
+
+		i2s_out_ao_clk_pins: i2s-ao-clk-out {
+			mux {
+				groups = "i2s_ao_clk_out_ao";
+				function = "i2s_ao";
+				bias-disable;
+			};
+		};
+
+		i2s_out_lr_clk_pins: i2s-lr-clk-out {
+			mux {
+				groups = "i2s_lr_clk_out_ao";
+				function = "i2s_ao";
+				bias-disable;
+			};
+		};
+
+		i2s_out_ch01_ao_pins: i2s-out-ch01 {
+			mux {
+				groups = "i2s_out_ch01_ao";
+				function = "i2s_ao";
+				bias-disable;
+			};
+		};
+
 		uart_ao_a_pins: uart_ao_a {
 			mux {
 				groups = "uart_tx_ao_a", "uart_rx_ao_a";
@@ -460,6 +515,14 @@
 			};
 		};
 
+		spdif_out_pins: spdif-out {
+			mux {
+				groups = "spdif_out";
+				function = "spdif";
+				bias-disable;
+			};
+		};
+
 		spi_nor_pins: nor {
 			mux {
 				groups = "nor_d", "nor_q", "nor_c", "nor_cs";