On 07/09, Gabriel Fernandez wrote:
> @@ -270,6 +285,73 @@ static int clkgen_pll_is_enabled(struct clk_hw *hw)
> return !poweroff;
> }
>
> +static int __clkgen_pll_enable(struct clk_hw *hw)
> +{
> + struct clkgen_pll *pll = to_clkgen_pll(hw);
> + unsigned long timeout;
> + int ret = 0;
> +
> + if (clkgen_pll_is_enabled(hw))
> + return 0;
> +
> + CLKGEN_WRITE(pll, pdn_ctrl, 0);
> +
> + timeout = jiffies + msecs_to_jiffies(10);
Jiffies isn't guaranteed to increment here because
.enable/.disable is called with irqs disabled and if this is the
only CPU running it won't be getting interrupts to update
jiffies.
> +
> + while (!clkgen_pll_is_locked(hw)) {
> + if (time_after(jiffies, timeout))
> + return -ETIMEDOUT;
> + cpu_relax();
> + }
> +
> + pr_debug("%s:%s enabled\n", __clk_get_name(hw->clk), __func__);
> +
> + return ret;
> +}
--
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