arm64: dts: renesas: rzg2l-smarc: Add Mic routing

Add audio routing for Mic with bias to reduce noise when doing
audio capture.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20210921084605.16250-5-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm64/boot/dts/renesas/rzg2l-smarc.dtsi b/arch/arm64/boot/dts/renesas/rzg2l-smarc.dtsi
index 1791c21..39e0516 100644 (file)
--- a/arch/arm64/boot/dts/renesas/rzg2l-smarc.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg2l-smarc.dtsi
@@ -47,6 +47,12 @@
                simple-audio-card,frame-master = <&cpu_dai>;
                simple-audio-card,mclk-fs = <256>;
 
+               simple-audio-card,widgets = "Microphone", "Microphone Jack";
+               simple-audio-card,routing =
+                           "L2", "Mic Bias",
+                           "R2", "Mic Bias",
+                           "Mic Bias", "Microphone Jack";
+
                cpu_dai: simple-audio-card,cpu {
                        sound-dai = <&ssi0>;
                };