[PATCH 2/3] arm64: dts: rockchip: Add I2S2 node for RADXA Rock 3A

[Shengyu Qu]

This patch adds I2S2 node for Radxa Rock 3A's M.2 E key slot for
Bluetooth PCM input. I2S2 is not used now, but could be configured
for Bluetooth HFP over PCM in future patches.

Signed-off-by: Shengyu Qu <wiagn233 at outlook.com>
---
 arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts b/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
index fb87a168fe96..9577a34bb367 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
@@ -526,6 +526,11 @@ &i2s1_8ch {
 	status = "okay";
 };
 
+&i2s2_2ch {
+	rockchip,trcm-sync-tx-only;
+	status = "okay";
+};
+
 &mdio1 {
 	rgmii_phy1: ethernet-phy at 0 {
 		compatible = "ethernet-phy-ieee802.3-c22";
-- 
2.25.1