Re: [PATCH] soundwire: intel: Initialize clock stop timeout

From: Pierre-Louis Bossart
Date: Wed Nov 09 2022 - 11:05:53 EST




On 10/28/22 06:28, Vinod Koul wrote:
> On 20-10-22, 09:56, Bard Liao wrote:
>> From: Sjoerd Simons <sjoerd@xxxxxxxxxxxxx>
>>
>> The bus->clk_stop_timeout member is only initialized to a non-zero value
>> during the codec driver probe. This can lead to corner cases where this
>> value remains pegged at zero when the bus suspends, which results in an
>> endless loop in sdw_bus_wait_for_clk_prep_deprep().
>>
>> Corner cases include configurations with no codecs described in the
>> firmware, or delays in probing codec drivers.
>>
>> Initializing the default timeout to the smallest non-zero value avoid this
>> problem and allows for the existing logic to be preserved: the
>> bus->clk_stop_timeout is set as the maximum required by all codecs
>> connected on the bus.
>
> Applied to fixes, thanks

Thanks Vinod, was this sent to Greg/Linus? the last pull request I see
was for 6.1-rc1.
Arch Linux cherry-picked this patch but other distros did not, so quite
a few users are left with no audio card.