Re: [PATCH 1/1] clk: meson: pll: fix rounding and setting a rate that matches precisely

From: Neil Armstrong
Date: Mon Mar 25 2019 - 08:18:35 EST


On 25/03/2019 10:48, Jerome Brunet wrote:
> On Sun, 2019-03-24 at 17:43 +0100, Martin Blumenstingl wrote:
>> Make meson_clk_pll_is_better() consider a rate that precisely matches
>> the requested rate to be better than any previous rate (which was
>> smaller than the current).
>>
>> Prior to commit 8eed1db1adec6a ("clk: meson: pll: update driver for the
>> g12a") meson_clk_get_pll_settings() returned early (before calling
>> meson_clk_pll_is_better()) if the rate from the current iteration
>> matches the requested rate precisely. After this commit
>> meson_clk_pll_is_better() is called unconditionally. This requires
>> meson_clk_pll_is_better() to work with the case where "now == rate".
>>
>> This fixes a hang during boot on Meson8b / Odroid-C1 for me.
>>
>> Fixes: 8eed1db1adec6a ("clk: meson: pll: update driver for the g12a")
>> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
>
> Good catch !
>
> Reviewed-by: Jerome Brunet <jbrunet@xxxxxxxxxxxx>
>
>
>

Applied to fixes/drivers !