clk: rockchip: Use clk_hw_get_rate() in MMC phase calculation

When calculating the MMC phase we can just use clk_hw_get_rate()
instead of clk_get_rate().  This avoids recalculating the rate.
Suggested-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

drivers/clk/rockchip/clk-mmc-phase.c

@@ -55,7 +55,7 @@ static unsigned long rockchip_mmc_recalc(struct clk_hw *hw,
 static int rockchip_mmc_get_phase(struct clk_hw *hw)
 {
 	struct rockchip_mmc_clock *mmc_clock = to_mmc_clock(hw);
-	unsigned long rate = clk_get_rate(hw->clk);
+	unsigned long rate = clk_hw_get_rate(hw);
 	u32 raw_value;
 	u16 degrees;
 	u32 delay_num = 0;
@@ -86,7 +86,7 @@ static int rockchip_mmc_get_phase(struct clk_hw *hw)
 static int rockchip_mmc_set_phase(struct clk_hw *hw, int degrees)
 {
 	struct rockchip_mmc_clock *mmc_clock = to_mmc_clock(hw);
-	unsigned long rate = clk_get_rate(hw->clk);
+	unsigned long rate = clk_hw_get_rate(hw);
 	u8 nineties, remainder;
 	u8 delay_num;
 	u32 raw_value;