Re: [PATCH] ath10k: disable cpuidle during downloading firmware.

Tom Psyborg
2019-11-06T18:33:58Z

On 06/11/2019, Kalle Valo <kvalo@codeaurora.org> wrote:
> Ikjoon Jang <ikjn@chromium.org> writes:
>
>> Downloading ath10k firmware needs a large number of IOs and
>> cpuidle's miss predictions make it worse. In the worst case,
>> resume time can be three times longer than the average on sdio.
>>
>> This patch disables cpuidle during firmware downloading by
>> applying PM_QOS_CPU_DMA_LATENCY in ath10k_download_fw().
>>
>> Signed-off-by: Ikjoon Jang <ikjn@chromium.org>
>
> On what hardware and firmware versions did you test this? I'll add that
> to the commit log.
>
> https://wireless.wiki.kernel.org/en/users/drivers/ath10k/submittingpatches#guidelines
>
> --
> https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
>
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Hi

I've tested this on QCA9880. No issues during firmware download.