ARM: dts: r8a7742-iwg21d-q7: Enable SGTL5000 audio codec

This patch enables SGTL5000 audio codec on the carrier board.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
Link: https://lore.kernel.org/r/1590611013-26029-3-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
index f23c2ba..ff4fca9 100644 (file)
--- a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
+++ b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
@@ -23,6 +23,20 @@
                stdout-path = "serial2:115200n8";
        };
 
+       audio_clock: audio_clock {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <26000000>;
+       };
+
+       reg_1p5v: 1p5v {
+               compatible = "regulator-fixed";
+               regulator-name = "1P5V";
+               regulator-min-microvolt = <1500000>;
+               regulator-max-microvolt = <1500000>;
+               regulator-always-on;
+       };
+
        vcc_sdhi2: regulator-vcc-sdhi2 {
                compatible = "regulator-fixed";
 
@@ -61,12 +75,35 @@
        };
 };
 
+&i2c2 {
+       pinctrl-0 = <&i2c2_pins>;
+       pinctrl-names = "default";
+
+       status = "okay";
+       clock-frequency = <400000>;
+
+       sgtl5000: codec@a {
+               compatible = "fsl,sgtl5000";
+               #sound-dai-cells = <0>;
+               reg = <0x0a>;
+               clocks = <&audio_clock>;
+               VDDA-supply = <&reg_3p3v>;
+               VDDIO-supply = <&reg_3p3v>;
+               VDDD-supply = <&reg_1p5v>;
+       };
+};
+
 &pfc {
        avb_pins: avb {
                groups = "avb_mdio", "avb_gmii";
                function = "avb";
        };
 
+       i2c2_pins: i2c2 {
+               groups = "i2c2_b";
+               function = "i2c2";
+       };
+
        scifa2_pins: scifa2 {
                groups = "scifa2_data_c";
                function = "scifa2";