A test with the command below shows that the compatible string "rockchip,rk3308-spdif", "rockchip,rk3328-spdif" is already in use, but is not added to a document. The current fallback string "rockchip,rk3328-spdif" points to a data set enum RK_SPDIF_RK3366 in rockchip_spdif.c that is not used both in the mainline as in the manufacturer kernel. (Of the enum only RK_SPDIF_RK3288 is used.) So if the properties don't change we might as well use the first SoC in line as fallback string and add the description for rk3308 as: "rockchip,rk3308-spdif", "rockchip,rk3066-spdif" make ARCH=arm64 dtbs_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/sound/rockchip-spdif.yaml Signed-off-by: Johan Jonker <jbx6244@xxxxxxxxx> --- enum rk_spdif_type { RK_SPDIF_RK3066, RK_SPDIF_RK3188, RK_SPDIF_RK3288, RK_SPDIF_RK3366, }; static const struct of_device_id rk_spdif_match[] = { { .compatible = "rockchip,rk3066-spdif", .data = (void *)RK_SPDIF_RK3066 }, { .compatible = "rockchip,rk3188-spdif", .data = (void *)RK_SPDIF_RK3188 }, { .compatible = "rockchip,rk3228-spdif", .data = (void *)RK_SPDIF_RK3366 }, { .compatible = "rockchip,rk3288-spdif", .data = (void *)RK_SPDIF_RK3288 }, { .compatible = "rockchip,rk3328-spdif", .data = (void *)RK_SPDIF_RK3366 }, { .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 }, {}, }; --- Documentation/devicetree/bindings/sound/rockchip-spdif.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/sound/rockchip-spdif.yaml b/Documentation/devicetree/bindings/sound/rockchip-spdif.yaml index c46715265..26e986097 100644 --- a/Documentation/devicetree/bindings/sound/rockchip-spdif.yaml +++ b/Documentation/devicetree/bindings/sound/rockchip-spdif.yaml @@ -27,6 +27,7 @@ properties: - enum: - rockchip,rk3188-spdif - rockchip,rk3288-spdif + - rockchip,rk3308-spdif - const: rockchip,rk3066-spdif reg: -- 2.11.0