arm64: dts: hi6220: Add k3-dma and i2s/hdmi audio support

Add entry for k3-dma driver and i2s/hdmi audio devices.

This enables HDMI audio output.

Cc: Zhangfei Gao <zhangfei.gao@linaro.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Andy Green <andy@warmcat.com>
Cc: Dave Long <dave.long@linaro.org>
Cc: Guodong Xu <guodong.xu@linaro.org>
Cc: Antonio Borneo <borneo.antonio@gmail.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
v2:
* Split core i2s entry into dtsi and hdmi specific bits into
  hikey dts
v4:
* Rework simple-card to use many-dai-links method, as
  there may be other links in the future
v5:
* Rework audio description to use the audio-card-graph method
  as requested by Mark.
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>

2 files changed, 57 insertions, 3 deletions

diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
index 75bce2d0b1a8..ae8a8c5c21d2 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
@@ -418,6 +418,11 @@
                         method = "smc";
                 };
         };
+
+        sound_card {
+                compatible = "audio-graph-card";
+                dais = <&i2s0_port0>;
+        };
 };
 
 &uart2 {
@@ -458,10 +463,33 @@
                 interrupts = <1 2>;
                 pd-gpio = <&gpio0 4 0>;
                 adi,dsi-lanes = <4>;
+                #sound-dai-cells = <0>;
+
+                ports {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        port@0 {
+                                adv7533_in: endpoint {
+                                        remote-endpoint = <&dsi_out0>;
+                                };
+                        };
+                        port@2 {
+                                reg = <2>;
+                                codec_endpoint: endpoint {
+                                        remote-endpoint = <&i2s0_cpu_endpoint>;
+                                };
+                        };
+                };
+        };
+};
 
-                port {
-                        adv7533_in: endpoint {
-                                remote-endpoint = <&dsi_out0>;
+&i2s0 {
+
+        ports {
+                i2s0_port0: port@0 {
+                        i2s0_cpu_endpoint: endpoint {
+                                remote-endpoint = <&codec_endpoint>;
+                                dai-format = "i2s";
                         };
                 };
         };
diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
index 1e5129b19280..bead85228fe7 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
@@ -332,6 +332,19 @@
                         status = "disabled";
                 };
 
+                dma0: dma@f7370000 {
+                        compatible = "hisilicon,k3-dma-1.0";
+                        reg = <0x0 0xf7370000 0x0 0x1000>;
+                        #dma-cells = <1>;
+                        dma-channels = <15>;
+                        dma-requests = <32>;
+                        interrupts = <0 84 4>;
+                        clocks = <&sys_ctrl HI6220_EDMAC_ACLK>;
+                        dma-no-cci;
+                        dma-type = "hi6220_dma";
+                        status = "ok";
+                };
+
                 dual_timer0: timer@f8008000 {
                         compatible = "arm,sp804", "arm,primecell";
                         reg = <0x0 0xf8008000 0x0 0x1000>;
@@ -834,6 +847,19 @@
                         #thermal-sensor-cells = <1>;
                 };
 
+                i2s0: i2s@f7118000{
+                        compatible = "hisilicon,hi6210-i2s";
+                        reg = <0x0 0xf7118000 0x0 0x8000>; /* i2s unit */
+                        interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>; /* 155 "DigACodec_intr"-32 */
+                        clocks = <&sys_ctrl HI6220_DACODEC_PCLK>,
+                                 <&sys_ctrl HI6220_BBPPLL0_DIV>;
+                        clock-names = "dacodec", "i2s-base";
+                        dmas = <&dma0 15 &dma0 14>;
+                        dma-names = "rx", "tx";
+                        hisilicon,sysctrl-syscon = <&sys_ctrl>;
+                        #sound-dai-cells = <1>;
+                };
+
                 thermal-zones {
 
                         cls0: cls0 {