From: Elaine Zhang <zhangqing@rock-chips.com>
Date: Wed, 22 Feb 2017 02:59:55 +0000 (+0800)
Subject: clk: rockchip: add pll_wait_lock for pll_enable
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9be83448951a404a6fd5cf43ee0245a9bccc02c1;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

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 eec51893a7e6..dd0433d4753e 100644
--- 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;
 }