Re: [PATCH] clk: divider: fix clk_round_rate() when CLK_DIVIDER_READ_ONLY && CLK_RATE_SET_PARENT

[Stephen Boyd]

On 01/06, David Lechner wrote:
> clk_round_rate() 'answers the question "if I were to pass @rate to
> clk_set_rate(), what clock rate would I end up with?" without changing
> the hardware'.
> 
> Currently, clk_divider_round_rate() returns the "current value" when
> divider->flags & CLK_DIVIDER_READ_ONLY. But, if CLK_SET_RATE_PARENT is
> set, then clk_set_rate() is supposed to propagate the rate change to the
> parent clock. So, we need to do check for CLK_SET_RATE_PARENT and if it
> is set, ask the parent clock what rate it can provide given the current
> divider value.
> 
> Signed-off-by: David Lechner <david@xxxxxxxxxxxxxx>

Jerome sent a patch the day before that probably addresses the
same thing. See the message-id of 20180105170959.17266-2-jbrunet@xxxxxxxxxxxx
for more info.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project