On Fri, Nov 07, 2014 at 10:51:52AM -0800, Doug Anderson wrote:
> diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
> index 4896ae9..a3d3d58 100644
> --- a/drivers/clk/clk.c
> +++ b/drivers/clk/clk.c
> @@ -1650,6 +1650,17 @@ void __clk_reparent(struct clk *clk, struct clk *new_parent)
> clk_reparent(clk, new_parent);
> __clk_recalc_accuracies(clk);
> __clk_recalc_rates(clk, POST_RATE_CHANGE);
> +
> + if (clk->prepare_count) {
> + unsigned long flags;
> +
> + __clk_prepare(new_parent);
> +
> + flags = clk_enable_lock();
> + if (clk->enable_count)
> + __clk_enable(new_parent);
> + clk_enable_unlock(flags);
> + }
I really don't understand why this isn't already done - I said this was
necessary a /long/ time ago.
However, the above isn't sufficient. Think about the old parent - this
should be disabled and unprepared if it was prepared and enabled by the
child.
--
FTTC broadband for 0.8mile line: currently at 9.5Mbps down 400kbps up
according to speedtest.net.
