Re: [PATCH 2/4] Add missing check

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Am 04.05.21 um 11:41 schrieb Ville Syrjälä:

> On Mon, May 03, 2021 at 08:21:46PM +0200, Werner Sembach wrote:
>> Add a missing check that could potentially lead to an unarchivable mode being
>> validated.
>>
>> Signed-off-by: Werner Sembach <wse@xxxxxxxxxxxxxxxxxxx>
>> ---
>>
>> >From 54fa706f0a5f260a32af5d18b9622ceebb94c12e Mon Sep 17 00:00:00 2001
>> From: Werner Sembach <wse@xxxxxxxxxxxxxxxxxxx>
>> Date: Mon, 3 May 2021 14:42:36 +0200
>> Subject: [PATCH 2/4] Add missing check
> I guess you did something a bit wonky with git format-patch/send-mail?
I have no idea how that timestamp happened, I will check when sending my next patch ^^.
>> ---
>>  drivers/gpu/drm/i915/display/intel_hdmi.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
>> index 576d3d910d06..ce165ef28e88 100644
>> --- a/drivers/gpu/drm/i915/display/intel_hdmi.c
>> +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
>> @@ -1913,7 +1913,7 @@ intel_hdmi_mode_valid(struct drm_connector *connector,
>>  		clock *= 2;
>>  	}
>>  
>> -	if (drm_mode_is_420_only(&connector->display_info, mode))
>> +	if (connector->ycbcr_420_allowed && drm_mode_is_420_only(&connector->display_info, mode))
> This one shouldn't be necessary. drm_mode_validate_ycbcr420() has
> already checked it for us.
I wasn't aware of drm_mode_validate_ycbcr420, thanks for the hint. In the "420_also"-patch I change drm_mode_is_420_only to drm_mode_is_420 (helper function: _only + _also), which is not checked by drm_mode_validate_ycbcr420. I can add this check to that patch, since its only required then.
>>  		clock /= 2;
>>  
>>  	status = intel_hdmi_mode_clock_valid(hdmi, clock, has_hdmi_sink);
>> -- 
>> 2.25.1

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