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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>
This commit is contained in:
Elaine Zhang 2017-02-22 10:59:55 +08:00 committed by Heiko Stuebner
parent 7e2a9035c1
commit 9be8344895
1 changed files with 3 additions and 0 deletions
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3
drivers/clk/rockchip/clk-pll.c
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@ -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;
}