[Intel-gfx] [igt-dev] [PATCH i-g-t] lib/pm: Increase snd module probe timeout to 10s

[Imre Deak]

On Tue, Sep 04, 2018 at 11:19:38AM +0100, Chris Wilson wrote:
> 5s is often not enough for the sound module to finish loading, so bump
> the timeout to 10s. For fun, poll quicker over the 1s!
> 
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Imre Deak <imre.deak at intel.linux.com>

Reviewed-by: Imre Deak <imre.deak at intel.com>

> ---
>  lib/igt_pm.c | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/lib/igt_pm.c b/lib/igt_pm.c
> index e86fa4a40..615463a08 100644
> --- a/lib/igt_pm.c
> +++ b/lib/igt_pm.c
> @@ -258,12 +258,15 @@ void igt_pm_enable_audio_runtime_pm(void)
>  	if (__igt_pm_audio_runtime_power_save[0])
>  		return;
>  
> -	for (int count = 0; count < 5; count++) {
> +	for (int count = 0; count < 110; count++) {
>  		if (!__igt_pm_enable_audio_runtime_pm())
>  			return;
>  
>  		/* modprobe(sna-hda-intel) acts async so poll for sysfs */
> -		sleep(1);
> +		if (count < 100)
> +			usleep(10 * 1000); /* poll at 10ms for the first 1s */
> +		else
> +			sleep(1);
>  	}
>  
>  	err = __igt_pm_enable_audio_runtime_pm();
> -- 
> 2.19.0.rc1
> 
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