diff options
Diffstat (limited to 'drivers/clk/tegra/clk-divider.c')
| -rw-r--r-- | drivers/clk/tegra/clk-divider.c | 35 |
1 files changed, 8 insertions, 27 deletions
diff --git a/drivers/clk/tegra/clk-divider.c b/drivers/clk/tegra/clk-divider.c index 16e0aee14773..205fe8ff63f0 100644 --- a/drivers/clk/tegra/clk-divider.c +++ b/drivers/clk/tegra/clk-divider.c @@ -32,35 +32,15 @@ static int get_div(struct tegra_clk_frac_div *divider, unsigned long rate, unsigned long parent_rate) { - u64 divider_ux1 = parent_rate; - u8 flags = divider->flags; - int mul; - - if (!rate) - return 0; - - mul = get_mul(divider); - - if (!(flags & TEGRA_DIVIDER_INT)) - divider_ux1 *= mul; - - if (flags & TEGRA_DIVIDER_ROUND_UP) - divider_ux1 += rate - 1; - - do_div(divider_ux1, rate); - - if (flags & TEGRA_DIVIDER_INT) - divider_ux1 *= mul; + int div; - divider_ux1 -= mul; + div = div_frac_get(rate, parent_rate, divider->width, + divider->frac_width, divider->flags); - if ((s64)divider_ux1 < 0) + if (div < 0) return 0; - if (divider_ux1 > get_max_div(divider)) - return get_max_div(divider); - - return divider_ux1; + return div; } static unsigned long clk_frac_div_recalc_rate(struct clk_hw *hw, @@ -194,6 +174,7 @@ static const struct clk_div_table mc_div_table[] = { struct clk *tegra_clk_register_mc(const char *name, const char *parent_name, void __iomem *reg, spinlock_t *lock) { - return clk_register_divider_table(NULL, name, parent_name, 0, reg, - 16, 1, 0, mc_div_table, lock); + return clk_register_divider_table(NULL, name, parent_name, + CLK_IS_CRITICAL, reg, 16, 1, 0, + mc_div_table, lock); } |