clk: rockchip: add pll_wait_lock for pll_enable

If pll is power down,when power up pll need wait pll lock.
The reference documents section:
	PLL frequency change and lock check

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/drivers/clk/rockchip/clk-pll.c b/drivers/clk/rockchip/clk-pll.c
index eec5189..dd0433d 100644 (file)
--- a/drivers/clk/rockchip/clk-pll.c
+++ b/drivers/clk/rockchip/clk-pll.c
@@ -269,6 +269,7 @@ static int rockchip_rk3036_pll_enable(struct clk_hw *hw)
 
        writel(HIWORD_UPDATE(0, RK3036_PLLCON1_PWRDOWN, 0),
               pll->reg_base + RK3036_PLLCON(1));
+       rockchip_pll_wait_lock(pll);
 
        return 0;
 }
@@ -501,6 +502,7 @@ static int rockchip_rk3066_pll_enable(struct clk_hw *hw)
 
        writel(HIWORD_UPDATE(0, RK3066_PLLCON3_PWRDOWN, 0),
               pll->reg_base + RK3066_PLLCON(3));
+       rockchip_pll_wait_lock(pll);
 
        return 0;
 }
@@ -746,6 +748,7 @@ static int rockchip_rk3399_pll_enable(struct clk_hw *hw)
 
        writel(HIWORD_UPDATE(0, RK3399_PLLCON3_PWRDOWN, 0),
               pll->reg_base + RK3399_PLLCON(3));
+       rockchip_rk3399_pll_wait_lock(pll);
 
        return 0;
 }