[Intel-gfx] [PATCH v3] drm/i915: Use correct downstream caps for check Src-Ctl mode for PCON

[Sharma, Swati2]

Reviewed-by: Swati Sharma <swati2.sharma at intel.com>

On 11-May-21 5:39 PM, Ankit Nautiyal wrote:
> Fix the typo in DPCD caps used for checking SRC CTL mode of
> HDMI2.1 PCON
> 
> v2: Corrected Fixes tag (Jani Nikula).
> v3: Rebased.
> 
> Fixes: 04b6603d13be ("drm/i915/display: Configure HDMI2.1 Pcon for FRL only if Src-Ctl mode is available")
> 
> Cc: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
> Cc: Uma Shankar <uma.shankar at intel.com>
> Cc: Jani Nikula <jani.nikula at intel.com>
> Cc: "Ville Syrj_l_" <ville.syrjala at linux.intel.com>
> Cc: Imre Deak <imre.deak at intel.com>
> Cc: Manasi Navare <manasi.d.navare at intel.com>
> Cc: Gwan-gyeong Mun <gwan-gyeong.mun at intel.com>
> Cc: Lucas De Marchi <lucas.demarchi at intel.com>
> Cc: Sean Paul <seanpaul at chromium.org>
> 
> Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
> ---
>   drivers/gpu/drm/i915/display/intel_dp.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 9a8dfdf15530..072d3edf9197 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -2113,7 +2113,7 @@ void intel_dp_check_frl_training(struct intel_dp *intel_dp)
>   	 * -PCON supports SRC_CTL_MODE (VESA DP2.0-HDMI2.1 PCON Spec Draft-1 Sec-7)
>   	 * -sink is HDMI2.1
>   	 */
> -	if (!(intel_dp->dpcd[2] & DP_PCON_SOURCE_CTL_MODE) ||
> +	if (!(intel_dp->downstream_ports[2] & DP_PCON_SOURCE_CTL_MODE) ||
>   	    !intel_dp_is_hdmi_2_1_sink(intel_dp) ||
>   	    intel_dp->frl.is_trained)
>   		return;
> 

-- 
~Swati Sharma