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Subject[PATCH 1/3] clk: pistachio: Add a pll_lock() helper for clarity
Date
This commit adds a pll_lock() helper making the code more readable.
Cosmetic change only, no functionality changes.

Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
---
drivers/clk/pistachio/clk-pll.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/pistachio/clk-pll.c b/drivers/clk/pistachio/clk-pll.c
index de53756..9ce1be7 100644
--- a/drivers/clk/pistachio/clk-pll.c
+++ b/drivers/clk/pistachio/clk-pll.c
@@ -67,6 +67,12 @@ static inline void pll_writel(struct pistachio_clk_pll *pll, u32 val, u32 reg)
writel(val, pll->base + reg);
}

+static inline void pll_lock(struct pistachio_clk_pll *pll)
+{
+ while (!(pll_readl(pll, PLL_STATUS) & PLL_STATUS_LOCK))
+ cpu_relax();
+}
+
static inline u32 do_div_round_closest(u64 dividend, u32 divisor)
{
dividend += divisor / 2;
@@ -178,8 +184,7 @@ static int pll_gf40lp_frac_set_rate(struct clk_hw *hw, unsigned long rate,
(params->postdiv2 << PLL_FRAC_CTRL2_POSTDIV2_SHIFT);
pll_writel(pll, val, PLL_CTRL2);

- while (!(pll_readl(pll, PLL_STATUS) & PLL_STATUS_LOCK))
- cpu_relax();
+ pll_lock(pll);

if (!was_enabled)
pll_gf40lp_frac_disable(hw);
@@ -288,8 +293,7 @@ static int pll_gf40lp_laint_set_rate(struct clk_hw *hw, unsigned long rate,
(params->postdiv2 << PLL_INT_CTRL1_POSTDIV2_SHIFT);
pll_writel(pll, val, PLL_CTRL1);

- while (!(pll_readl(pll, PLL_STATUS) & PLL_STATUS_LOCK))
- cpu_relax();
+ pll_lock(pll);

if (!was_enabled)
pll_gf40lp_laint_disable(hw);
--
2.3.3


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