diff mbox

[v1] clk: rockchip: add pll_wait_lock for pll_enable

Message ID 1487732395-30353-1-git-send-email-zhangqing@rock-chips.com (mailing list archive)
State New, archived
Headers show

Commit Message

zhangqing Feb. 22, 2017, 2:59 a.m. UTC 
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>
---
 drivers/clk/rockchip/clk-pll.c | 3 +++
 1 file changed, 3 insertions(+)

Comments

Heiko Stübner March 22, 2017, 6:07 p.m. UTC | #1 
Am Mittwoch, 22. Februar 2017, 10:59:55 CET schrieb Elaine Zhang:
> 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>

applied to my clk-branch for 4.12


Thanks
Heiko
diff mbox

Patch

diff --git a/drivers/clk/rockchip/clk-pll.c b/drivers/clk/rockchip/clk-pll.c
index 6ed605776abd..c4dfd26f37ae 100644
--- a/drivers/clk/rockchip/clk-pll.c
+++ b/drivers/clk/rockchip/clk-pll.c
@@ -268,6 +268,7 @@  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;
 }
@@ -500,6 +501,7 @@  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;
 }
@@ -745,6 +747,7 @@  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;
 }