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Subject[PATCH 3/9] ASoC: meson: aiu: add audio output dt-bindings
Date
Add the dt-bindings and documentation of the AIU audio controller.
This component provides most of the audio outputs found on the Amlogic
Gx SoC family.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
---
.../bindings/sound/amlogic,aiu.yaml | 111 ++++++++++++++++++
include/dt-bindings/sound/meson-aiu.h | 18 +++
2 files changed, 129 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/amlogic,aiu.yaml
create mode 100644 include/dt-bindings/sound/meson-aiu.h

diff --git a/Documentation/devicetree/bindings/sound/amlogic,aiu.yaml b/Documentation/devicetree/bindings/sound/amlogic,aiu.yaml
new file mode 100644
index 000000000000..3ef7632dcb59
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/amlogic,aiu.yaml
@@ -0,0 +1,111 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/amlogic,aiu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic AIU audio output controller
+
+maintainers:
+ - Jerome Brunet <jbrunet@baylibre.com>
+
+properties:
+ $nodename:
+ pattern: "^audio-controller@.*"
+
+ "#sound-dai-cells":
+ const: 2
+
+ compatible:
+ items:
+ - enum:
+ - amlogic,aiu-gxbb
+ - amlogic,aiu-gxl
+ - const:
+ amlogic,aiu
+
+ clocks:
+ items:
+ - description: AIU peripheral clock
+ - description: I2S peripheral clock
+ - description: I2S output clock
+ - description: I2S master clock
+ - description: I2S mixer clock
+ - description: SPDIF peripheral clock
+ - description: SPDIF output clock
+ - description: SPDIF master clock
+ - description: SPDIF master clock multiplexer
+
+ clock-names:
+ items:
+ - const: pclk
+ - const: i2s_pclk
+ - const: i2s_aoclk
+ - const: i2s_mclk
+ - const: i2s_mixer
+ - const: spdif_pclk
+ - const: spdif_aoclk
+ - const: spdif_mclk
+ - const: spdif_mclk_sel
+
+ interrupts:
+ items:
+ - description: I2S interrupt line
+ - description: SPDIF interrupt line
+
+ interrupt-names:
+ items:
+ - const: i2s
+ - const: spdif
+
+ reg:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+required:
+ - "#sound-dai-cells"
+ - compatible
+ - clocks
+ - clock-names
+ - interrupts
+ - interrupt-names
+ - reg
+ - resets
+
+examples:
+ - |
+ #include <dt-bindings/clock/gxbb-clkc.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/reset/amlogic,meson-gxbb-reset.h>
+
+ aiu: audio-controller@5400 {
+ compatible = "amlogic,aiu-gxl", "amlogic,aiu";
+ #sound-dai-cells = <2>;
+ reg = <0x0 0x5400 0x0 0x2ac>;
+ interrupts = <GIC_SPI 48 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 50 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "i2s", "spdif";
+ 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>;
+ };
+
diff --git a/include/dt-bindings/sound/meson-aiu.h b/include/dt-bindings/sound/meson-aiu.h
new file mode 100644
index 000000000000..1051b8af298b
--- /dev/null
+++ b/include/dt-bindings/sound/meson-aiu.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __DT_MESON_AIU_H
+#define __DT_MESON_AIU_H
+
+#define AIU_CPU 0
+#define AIU_HDMI 1
+#define AIU_ACODEC 2
+
+#define CPU_I2S_FIFO 0
+#define CPU_SPDIF_FIFO 1
+#define CPU_I2S_ENCODER 2
+#define CPU_SPDIF_ENCODER 3
+
+#define CTRL_I2S 0
+#define CTRL_PCM 1
+#define CTRL_OUT 2
+
+#endif /* __DT_MESON_AIU_H */
--
2.24.1
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