diff options
Diffstat (limited to 'drivers/clk/ingenic/cgu.c')
-rw-r--r-- | drivers/clk/ingenic/cgu.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/drivers/clk/ingenic/cgu.c b/drivers/clk/ingenic/cgu.c index 6e963031cd87..d7981b670221 100644 --- a/drivers/clk/ingenic/cgu.c +++ b/drivers/clk/ingenic/cgu.c @@ -76,16 +76,13 @@ ingenic_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) const struct ingenic_cgu_pll_info *pll_info; unsigned m, n, od_enc, od; bool bypass; - unsigned long flags; u32 ctl; clk_info = &cgu->clock_info[ingenic_clk->idx]; BUG_ON(clk_info->type != CGU_CLK_PLL); pll_info = &clk_info->pll; - spin_lock_irqsave(&cgu->lock, flags); ctl = readl(cgu->base + pll_info->reg); - spin_unlock_irqrestore(&cgu->lock, flags); m = (ctl >> pll_info->m_shift) & GENMASK(pll_info->m_bits - 1, 0); m += pll_info->m_offset; @@ -93,6 +90,9 @@ ingenic_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) n += pll_info->n_offset; od_enc = ctl >> pll_info->od_shift; od_enc &= GENMASK(pll_info->od_bits - 1, 0); + + ctl = readl(cgu->base + pll_info->bypass_reg); + bypass = !pll_info->no_bypass_bit && !!(ctl & BIT(pll_info->bypass_bit)); @@ -106,7 +106,8 @@ ingenic_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) BUG_ON(od == pll_info->od_max); od++; - return div_u64((u64)parent_rate * m, n * od); + return div_u64((u64)parent_rate * m * pll_info->rate_multiplier, + n * od); } static unsigned long @@ -139,7 +140,8 @@ ingenic_pll_calc(const struct ingenic_cgu_clk_info *clk_info, if (pod) *pod = od; - return div_u64((u64)parent_rate * m, n * od); + return div_u64((u64)parent_rate * m * pll_info->rate_multiplier, + n * od); } static inline const struct ingenic_cgu_clk_info *to_clk_info( @@ -212,9 +214,14 @@ static int ingenic_pll_enable(struct clk_hw *hw) u32 ctl; spin_lock_irqsave(&cgu->lock, flags); - ctl = readl(cgu->base + pll_info->reg); + ctl = readl(cgu->base + pll_info->bypass_reg); ctl &= ~BIT(pll_info->bypass_bit); + + writel(ctl, cgu->base + pll_info->bypass_reg); + + ctl = readl(cgu->base + pll_info->reg); + ctl |= BIT(pll_info->enable_bit); writel(ctl, cgu->base + pll_info->reg); @@ -259,12 +266,9 @@ static int ingenic_pll_is_enabled(struct clk_hw *hw) struct ingenic_cgu *cgu = ingenic_clk->cgu; const struct ingenic_cgu_clk_info *clk_info = to_clk_info(ingenic_clk); const struct ingenic_cgu_pll_info *pll_info = &clk_info->pll; - unsigned long flags; u32 ctl; - spin_lock_irqsave(&cgu->lock, flags); ctl = readl(cgu->base + pll_info->reg); - spin_unlock_irqrestore(&cgu->lock, flags); return !!(ctl & BIT(pll_info->enable_bit)); } @@ -562,16 +566,12 @@ static int ingenic_clk_is_enabled(struct clk_hw *hw) struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); struct ingenic_cgu *cgu = ingenic_clk->cgu; const struct ingenic_cgu_clk_info *clk_info; - unsigned long flags; int enabled = 1; clk_info = &cgu->clock_info[ingenic_clk->idx]; - if (clk_info->type & CGU_CLK_GATE) { - spin_lock_irqsave(&cgu->lock, flags); + if (clk_info->type & CGU_CLK_GATE) enabled = !ingenic_cgu_gate_get(cgu, &clk_info->gate); - spin_unlock_irqrestore(&cgu->lock, flags); - } return enabled; } |