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Subject[PATCH v2 2/2] arm64: dts: rockchip: enable I2S codec on rk3399-puma-haikou
Date
Enable the NXP SGTL5000 audio codec on the RK3399-Q7 EVK baseboard
Haikou.

The i2s0_2ch_bus definition is only done in the SoM dtsi as it is
missing the LRCK_RX pin (that is used otherwise) and therefore not
generic enough for the SoC dtsi.

Signed-off-by: Klaus Goger <klaus.goger@theobroma-systems.com>

---

Changes in v2:
- reordered entries as suggested in review
- removed a conflicting i2s definition in rk3399-puma-haikou.dts
i2s0 was already enabled in rk3399-puma.dtsi as it should be,
so reuse it and fix the incorrect rockchip,*-channels values
- add a patch to the series that definies a generic i2s0-2ch-bus
- overwrite the generic pin definition of i2s0-2ch-bus with a specific
one used in the Haikou with RK3399-Q7 setup.

.../arm64/boot/dts/rockchip/rk3399-puma-haikou.dts | 59 +++++++++++++++++++---
arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi | 25 +++++++++
2 files changed, 76 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
index 9a7486058455..0e2fe2ae75ee 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
@@ -61,6 +61,24 @@
};
};

+ i2s0_sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,format = "i2s";
+ simple-audio-card,name = "Haikou,I2S-codec";
+ simple-audio-card,mclk-fs = <512>;
+
+ simple-audio-card,codec {
+ clocks = <&sgtl5000_clk>;
+ sound-dai = <&sgtl5000>;
+ };
+
+ simple-audio-card,cpu {
+ bitclock-master;
+ frame-master;
+ sound-dai = <&i2s0>;
+ };
+ };
+
dc_12v: dc-12v {
compatible = "regulator-fixed";
regulator-name = "dc_12v";
@@ -89,6 +107,28 @@
regulator-name = "vcc5v0_otg";
regulator-always-on;
};
+
+ vdda_codec: vdda-codec {
+ compatible = "regulator-fixed";
+ regulator-name = "vdda_codec";
+ regulator-boot-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ vddd_codec: vddd-codec {
+ compatible = "regulator-fixed";
+ regulator-name = "vddd_codec";
+ regulator-boot-on;
+ regulator-min-microvolt = <1600000>;
+ regulator-max-microvolt = <1600000>;
+ };
+
+ sgtl5000_clk: sgtl5000-oscillator {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <24576000>;
+ };
};

&i2c1 {
@@ -110,6 +150,17 @@
&i2c4 {
status = "okay";
clock-frequency = <400000>;
+
+ sgtl5000: codec@0a {
+ compatible = "fsl,sgtl5000";
+ reg = <0x0a>;
+ clocks = <&sgtl5000_clk>;
+ #sound-dai-cells = <0>;
+ VDDA-supply = <&vdda_codec>;
+ VDDIO-supply = <&vdda_codec>;
+ VDDD-supply = <&vddd_codec>;
+ status = "okay";
+ };
};

&i2c6 {
@@ -117,14 +168,6 @@
clock-frequency = <400000>;
};

-&i2s0 {
- status = "okay";
- rockchip,playback-channels = <8>;
- rockchip,capture-channels = <8>;
- #sound-dai-cells = <0>;
- status = "okay";
-};
-
&pcie_phy {
status = "okay";
};
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
index 1fc5060d7027..fb57da126169 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
@@ -435,6 +435,14 @@
};
};

+&i2s0 {
+ pinctrl-0 = <&i2s0_2ch_bus>;
+ rockchip,playback-channels = <2>;
+ rockchip,capture-channels = <2>;
+ #sound-dai-cells = <0>;
+ status = "okay";
+};
+
&io_domains {
status = "okay";
bt656-supply = <&vcc_1v8>;
@@ -461,6 +469,23 @@
};
};

+ i2s0 {
+ /*
+ * As Q7 does not specify neither a global nor a RX clock for I2S these
+ * signals are not used. Furthermore I2S0_LRCK_RX is used as GPIO.
+ * Therefore we have to redefine the i2s0_2ch_bus definition to prevent
+ * conflicts.
+ */
+ /delete-node/ i2s0_2ch_bus;
+ i2s0_2ch_bus: i2s0-2ch-bus {
+ rockchip,pins =
+ <RK_GPIO3 RK_PD0 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO3 RK_PD2 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO3 RK_PD3 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO3 RK_PD7 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
leds {
led_pin_module: led-module-gpio {
rockchip,pins =
--
2.11.0
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