From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D7B21175A7D for ; Fri, 24 Jul 2026 16:31:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784910674; cv=none; b=LWDtn7shSqrg5nleoTqBrXd7KhYsxeYr7TMeqMJUwf+gFZwTSEcmFYc9yZoPCuE5nhEpcDsWVeFAlxJdFwvLZoSl1eMYfFMaaU3Ixl2mPvHk8dgjFT9mao1HLyvbJhyrO51KKavfmcNLWBEVzKOsV+6YvKf0RJP+yKRFDrAoD+s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784910674; c=relaxed/simple; bh=/idbz5BKrbJjk1R4FynEST90i9FfFryy1BCY9l5xm4E=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=kNGtHbf0eb1PjoE1AL1D7lGDF6aIXT16n8UzbRmconVrmI9NANnalcT0ynR+zv2hRq+TCW7yEkvFXfZMHlsKVex6H1xnCEg4HE2dt+Qn/rBV6a14qgrhrdaHBJAbFFHwrqdW7zvoa327KcGx7zzZ6aoZAZd1v7+JdOty9EXy2j4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VcrNofLz; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="VcrNofLz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6CB681F000E9; Fri, 24 Jul 2026 16:31:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784910673; bh=iyJ8tkxt3n1CtByixTV93nC7Ad6kAUHNqgFi6ed8GAE=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=VcrNofLz4ndkJQcLHH4OHbh7X7jnjgpWFN8+bRrDeY66TddBug7TU4onYqHHszyHg Cl08sxC7B89sgdVrvnpoUg+9bgsM0i0jlboWdnOj6kmwBZLusHI1Uy1fpxYDSMbSiT L8OY7IvvxtF9QFW0O8UBS0JLyyzBaqdYe84L/1GFqcbsE70EiAAiS6PMJfC/F9XYQR bJkMf7l2I4Mw4Znj9PVi540ReK9l+RXpCkoAaq51B1sLikXEeOy9qTdWuGNdlbpyZn G4a8fd6mm00LzmfEXMDFIJmt6j/EuTf/JLXBafMgyV6kLdwGw+mhJIJEjlQu/LFJR0 XN0vfl6mRJ2lA== Message-ID: Date: Fri, 24 Jul 2026 11:31:11 -0500 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 0/4] drm/edid: Parse AMD VSDB FreeSync range in common code Content-Language: en-US To: Alex Huang , maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, harry.wentland@amd.com, sunpeng.li@amd.com, siqueira@igalia.com, alexander.deucher@amd.com, christian.koenig@amd.com, alex.hung@amd.com Cc: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org References: <20260724161713.119382-1-Alex.Huang2@amd.com> From: Mario Limonciello In-Reply-To: <20260724161713.119382-1-Alex.Huang2@amd.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 7/24/26 11:17, Alex Huang wrote: > This patch series implements parsing for AMD VSDB block's FreeSync > related data directly in the EDID common parser. > > Some monitor manufacturers advertise their VRR capability exclusively > using the AMD VSDB block's FreeSync data fields, many other > manufacturers (notably pre EDID 1.4 monitors and some post 1.4 monitors) > also do not include the relevant continuous frequency feature flag in > the EDID. This makes it difficult to differentiate true VRR capability > from supporting a few refresh rates between the range specified in EDID > refresh rate range field in a spec compliant manner. > > Incidentally also resolves a recent regression where amdgpu failed to > detect some DP monitors as VRR capable after EDID parser was moved to > DRM common. > > v2: > - Use a ladder style parser as suggested by Mario. > - Validate payload lengths before parsing. > - Removed an extra amd_vsdb_version reassignment. > > Alex Huang (4): > drm/edid: Parse AMD VSDB for FreeSync refresh range > drm/amd/display: Use HDMI FreeSync range from common EDID parser > drm/amd/display: Clean up FreeSync capability detection > drm/amd/display: Remove unused DMCU/DMUB EDID CEA parser > > .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 252 +++--------------- > drivers/gpu/drm/amd/display/dc/Makefile | 1 - > .../gpu/drm/amd/display/dc/dc_edid_parser.c | 80 ------ > .../gpu/drm/amd/display/dc/dc_edid_parser.h | 44 --- > drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c | 121 --------- > drivers/gpu/drm/amd/display/dc/inc/hw/dmcu.h | 10 - > .../gpu/drm/amd/display/dmub/inc/dmub_cmd.h | 71 ----- > drivers/gpu/drm/drm_edid.c | 141 ++++++++-- > include/drm/drm_connector.h | 22 +- > 9 files changed, 175 insertions(+), 567 deletions(-) > delete mode 100644 drivers/gpu/drm/amd/display/dc/dc_edid_parser.c > delete mode 100644 drivers/gpu/drm/amd/display/dc/dc_edid_parser.h > > -- > 2.34.1 > Reviewed-by: Mario Limonciello (AMD)