ASoC: rockchip: add bindings for spdif controller

this patch add compatible for rk3366/rk3368/rk3399 spdif,
these three spdifs share the same type.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

2 files changed, 16 insertions, 5 deletions

diff --git a/Documentation/devicetree/bindings/sound/rockchip-spdif.txt b/Documentation/devicetree/bindings/sound/rockchip-spdif.txt
index e64dbdea7db9..11046429a118 100644
--- a/Documentation/devicetree/bindings/sound/rockchip-spdif.txt
+++ b/Documentation/devicetree/bindings/sound/rockchip-spdif.txt
@@ -7,8 +7,12 @@ a fibre cable.
 Required properties:
 
 - compatible: should be one of the following:
-   - "rockchip,rk3288-spdif", "rockchip,rk3188-spdif" or
-     "rockchip,rk3066-spdif"
+   - "rockchip,rk3066-spdif"
+   - "rockchip,rk3188-spdif"
+   - "rockchip,rk3288-spdif"
+   - "rockchip,rk3366-spdif"
+   - "rockchip,rk3368-spdif"
+   - "rockchip,rk3399-spdif"
 - reg: physical base address of the controller and length of memory mapped
   region.
 - interrupts: should contain the SPDIF interrupt.
diff --git a/sound/soc/rockchip/rockchip_spdif.c b/sound/soc/rockchip/rockchip_spdif.c
index 274599d4caeb..100781e37848 100644
--- a/sound/soc/rockchip/rockchip_spdif.c
+++ b/sound/soc/rockchip/rockchip_spdif.c
@@ -28,6 +28,7 @@ enum rk_spdif_type {
         RK_SPDIF_RK3066,
         RK_SPDIF_RK3188,
         RK_SPDIF_RK3288,
+        RK_SPDIF_RK3366,
 };
 
 #define RK3288_GRF_SOC_CON2 0x24c
@@ -45,11 +46,17 @@ struct rk_spdif_dev {
 
 static const struct of_device_id rk_spdif_match[] = {
         { .compatible = "rockchip,rk3066-spdif",
-          .data = (void *) RK_SPDIF_RK3066 },
+          .data = (void *)RK_SPDIF_RK3066 },
         { .compatible = "rockchip,rk3188-spdif",
-          .data = (void *) RK_SPDIF_RK3188 },
+          .data = (void *)RK_SPDIF_RK3188 },
         { .compatible = "rockchip,rk3288-spdif",
-          .data = (void *) RK_SPDIF_RK3288 },
+          .data = (void *)RK_SPDIF_RK3288 },
+        { .compatible = "rockchip,rk3366-spdif",
+          .data = (void *)RK_SPDIF_RK3366 },
+        { .compatible = "rockchip,rk3368-spdif",
+          .data = (void *)RK_SPDIF_RK3366 },
+        { .compatible = "rockchip,rk3399-spdif",
+          .data = (void *)RK_SPDIF_RK3366 },
         {},
 };
 MODULE_DEVICE_TABLE(of, rk_spdif_match);