From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0D939C25B67 for ; Fri, 27 Oct 2023 09:22:24 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9D6F810E95F; Fri, 27 Oct 2023 09:22:23 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 592EA10E95F for ; Fri, 27 Oct 2023 09:22:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1698398542; x=1729934542; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=qh7MJm9k+Yxxy8yofWcEerXk2jadj4g+Ew45Hj0xMRY=; b=EqBMOQduRfqvkA4zPdm0H93umoQf8wyqQWwt3CBDK4HlzXt6au4KZDQd m2iBxaROKM9umCaBkTdEJlSLmuqGuL1mlFds2xeDLL+rqmBETz7QCEglv nSqdP4oysrQ1TpQUFxubaRnxEILOyyg6W1ibTj/NkAzaAL2AhoZWo+U90 7Z1vXzXmhSdJKO0l/VLyX6yQNi0dZcRfSIToqki04dKHIS0RU2kKBBznX 3CoK0kDZj/5vEYDUSqgmgBviPpSOjryFQF6aT5kJv3zlZS+FeAubi+sCQ KfHpsvdt2ss0V9UVS3C/p5F889WkXujDQ1C6jCd37AMAmsRR6GRpRP8RT Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10875"; a="451980249" X-IronPort-AV: E=Sophos;i="6.03,255,1694761200"; d="scan'208";a="451980249" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Oct 2023 02:22:21 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10875"; a="709358387" X-IronPort-AV: E=Sophos;i="6.03,255,1694761200"; d="scan'208";a="709358387" Received: from unknown (HELO intel.com) ([10.237.72.65]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Oct 2023 02:22:20 -0700 Date: Fri, 27 Oct 2023 12:22:17 +0300 From: "Lisovskiy, Stanislav" To: Imre Deak Message-ID: References: <20231024010925.3949910-1-imre.deak@intel.com> <20231024010925.3949910-7-imre.deak@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231024010925.3949910-7-imre.deak@intel.com> Subject: Re: [Intel-gfx] [PATCH 06/29] drm/dp: Add DP_HBLANK_EXPANSION_CAPABLE and DSC_PASSTHROUGH_EN DPCD flags X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: intel-gfx@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" On Tue, Oct 24, 2023 at 04:09:02AM +0300, Imre Deak wrote: > Add the DPCD flag to enable DSC passthrough in a last branch device, > used in a follow-up i915 patch. > > Also add a flag to detect HBLANK expansion support in a branch device, > used by a workaround in a follow-up i915 patch. > > Cc: Lyude Paul > Signed-off-by: Imre Deak Reviewed-by: Stanislav Lisovskiy > --- > include/drm/display/drm_dp.h | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h > index e69cece404b3c..763d45a612f35 100644 > --- a/include/drm/display/drm_dp.h > +++ b/include/drm/display/drm_dp.h > @@ -148,6 +148,7 @@ > #define DP_RECEIVE_PORT_0_CAP_0 0x008 > # define DP_LOCAL_EDID_PRESENT (1 << 1) > # define DP_ASSOCIATED_TO_PRECEDING_PORT (1 << 2) > +# define DP_HBLANK_EXPANSION_CAPABLE (1 << 3) > > #define DP_RECEIVE_PORT_0_BUFFER_SIZE 0x009 > > @@ -699,6 +700,7 @@ > > #define DP_DSC_ENABLE 0x160 /* DP 1.4 */ > # define DP_DECOMPRESSION_EN (1 << 0) > +# define DP_DSC_PASSTHROUGH_EN (1 << 1) > #define DP_DSC_CONFIGURATION 0x161 /* DP 2.0 */ > > #define DP_PSR_EN_CFG 0x170 /* XXX 1.2? */ > -- > 2.39.2 >