diff options
Diffstat (limited to 'drivers/clk/imx/clk-fracn-gppll.c')
| -rw-r--r-- | drivers/clk/imx/clk-fracn-gppll.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/clk/imx/clk-fracn-gppll.c b/drivers/clk/imx/clk-fracn-gppll.c index 591e0364ee5c..85771afd4698 100644 --- a/drivers/clk/imx/clk-fracn-gppll.c +++ b/drivers/clk/imx/clk-fracn-gppll.c @@ -254,9 +254,11 @@ static int clk_fracn_gppll_set_rate(struct clk_hw *hw, unsigned long drate, pll_div = FIELD_PREP(PLL_RDIV_MASK, rate->rdiv) | rate->odiv | FIELD_PREP(PLL_MFI_MASK, rate->mfi); writel_relaxed(pll_div, pll->base + PLL_DIV); + readl(pll->base + PLL_DIV); if (pll->flags & CLK_FRACN_GPPLL_FRACN) { writel_relaxed(rate->mfd, pll->base + PLL_DENOMINATOR); writel_relaxed(FIELD_PREP(PLL_MFN_MASK, rate->mfn), pll->base + PLL_NUMERATOR); + readl(pll->base + PLL_NUMERATOR); } /* Wait for 5us according to fracn mode pll doc */ @@ -265,6 +267,7 @@ static int clk_fracn_gppll_set_rate(struct clk_hw *hw, unsigned long drate, /* Enable Powerup */ tmp |= POWERUP_MASK; writel_relaxed(tmp, pll->base + PLL_CTRL); + readl(pll->base + PLL_CTRL); /* Wait Lock */ ret = clk_fracn_gppll_wait_lock(pll); @@ -302,14 +305,15 @@ static int clk_fracn_gppll_prepare(struct clk_hw *hw) val |= POWERUP_MASK; writel_relaxed(val, pll->base + PLL_CTRL); - - val |= CLKMUX_EN; - writel_relaxed(val, pll->base + PLL_CTRL); + readl(pll->base + PLL_CTRL); ret = clk_fracn_gppll_wait_lock(pll); if (ret) return ret; + val |= CLKMUX_EN; + writel_relaxed(val, pll->base + PLL_CTRL); + val &= ~CLKMUX_BYPASS; writel_relaxed(val, pll->base + PLL_CTRL); |