PM / devfreq: rockchip_dmc: Add support for rk3308

Change-Id: Iff7deff76a02360021aacaeaa0d509593f88fb2d
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>

Author: finley1226

Documentation/devicetree/bindings/devfreq/rockchip_dmc.txt

@@ -6,6 +6,7 @@ Required properties:
   - "rockchip,rk3128-dmc" - for RK3128 SoCs.
   - "rockchip,rk3228-dmc" - for RK3228 SoCs.
   - "rockchip,rk3288-dmc" - for RK3288 SoCs.
+  - "rockchip,rk3308-dmc" - for RK3308 SoCs.
   - "rockchip,rk3328-dmc" - for RK3328 SoCs.
   - "rockchip,rk3368-dmc" - for RK3368 SoCs.
   - "rockchip,rk3399-dmc" - for RK3399 SoCs.

drivers/devfreq/rockchip_dmc.c

@@ -1934,6 +1934,7 @@ static const struct of_device_id rockchip_dmcfreq_of_match[] = {
 	{ .compatible = "rockchip,rk3128-dmc", .data = rk3128_dmc_init },
 	{ .compatible = "rockchip,rk3228-dmc", .data = rk3228_dmc_init },
 	{ .compatible = "rockchip,rk3288-dmc", .data = rk3288_dmc_init },
+	{ .compatible = "rockchip,rk3308-dmc", .data = NULL },
 	{ .compatible = "rockchip,rk3328-dmc", .data = rk3328_dmc_init },
 	{ .compatible = "rockchip,rk3368-dmc", .data = rk3368_dmc_init },
 	{ .compatible = "rockchip,rk3399-dmc", .data = rk3399_dmc_init },