[PATCH] drm/amd/display: Add logging for eDP v1.4 supported sink rates

Rodrigo Siqueira Jordao Rodrigo.Siqueira at amd.com
Fri Apr 28 19:14:21 UTC 2023



On 4/24/23 21:04, Srinivasan Shanmugam wrote:
> Include eDP v1.4 panels supported sink rates in debug output,
> useful info for knowing optimized link rates
> 
> Cc: Aurabindo Pillai <aurabindo.pillai at amd.com>
> Cc: Jerry Zuo <jerry.zuo at amd.com>
> Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam at amd.com>
> ---
>   .../gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c
> index 84265dc66bba..b69187ce8adb 100644
> --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c
> +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c
> @@ -1952,6 +1952,9 @@ void detect_edp_sink_caps(struct dc_link *link)
>   			link_rate_in_khz = (supported_link_rates[entry+1] * 0x100 +
>   										supported_link_rates[entry]) * 200;
>   
> +			DC_LOG_DC("%s: eDP v1.4 supported sink rates: [%d] %d kHz\n", __func__,
> +				  entry / 2, link_rate_in_khz);
> +
>   			if (link_rate_in_khz != 0) {
>   				link_rate = linkRateInKHzToLinkRateMultiplier(link_rate_in_khz);
>   				link->dpcd_caps.edp_supported_link_rates[link->dpcd_caps.edp_supported_link_rates_count] = link_rate;

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>

And applied to amd-staging-drm-next.

Thanks
Siqueira


More information about the amd-gfx mailing list