diff options
Diffstat (limited to 'drivers/clk/tegra/clk-divider.c')
| -rw-r--r-- | drivers/clk/tegra/clk-divider.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/clk/tegra/clk-divider.c b/drivers/clk/tegra/clk-divider.c index ca0de5f11f84..38daf483ddf1 100644 --- a/drivers/clk/tegra/clk-divider.c +++ b/drivers/clk/tegra/clk-divider.c @@ -40,8 +40,13 @@ static unsigned long clk_frac_div_recalc_rate(struct clk_hw *hw, int div, mul; u64 rate = parent_rate; - reg = readl_relaxed(divider->reg) >> divider->shift; - div = reg & div_mask(divider); + reg = readl_relaxed(divider->reg); + + if ((divider->flags & TEGRA_DIVIDER_UART) && + !(reg & PERIPH_CLK_UART_DIV_ENB)) + return rate; + + div = (reg >> divider->shift) & div_mask(divider); mul = get_mul(divider); div += mul; |