From nobody Sun Feb 8 12:39:19 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 CD566130A5B; Wed, 27 Mar 2024 12:26:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711542384; cv=none; b=Nn0aSWNt7JjxHw+sr01kCeAuE9dL/3q5yKhIQI5pDo9EDI6Wrf77J46xmOKfWfqjr0Rqv00gY0nWWvZLroOcpYNoTXhbh70l8ilAOC599cPGtUtQWDbmuzQuS55g+jZn2Qo7JW/oTbwvo4hYaY/3R4TENw93cd0f6SlsPRFzOfI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711542384; c=relaxed/simple; bh=LQBoXGf9p1SZaNSvXSfZE9eFpWax/u1bGRR7bbNl9N0=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=ER+imGn2rJDc55weicMnyeGXFuOk5VzaOy3vRqGA6PKOBYcaAq3kpN/3QKkZ9a/Y3tw21bFE1gvMf06n0kI+/mRB8iBZL/Tf8vlhZ0NxvrL4uJ1NbF+w0H1CKbFptAyT4Vw3sQHUovgXycnm/xMiIA21Nur5ATtDOanomoxup6I= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=riZmJyC2; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="riZmJyC2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5A28CC43390; Wed, 27 Mar 2024 12:26:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711542383; bh=LQBoXGf9p1SZaNSvXSfZE9eFpWax/u1bGRR7bbNl9N0=; h=From:To:Cc:Subject:Date:From; b=riZmJyC2anvwYaZ5EYrb9o3eMNIXM1YMqHqhea3HqGUGNY46HyBkbdtbrsbQh4Epz avo2M9zcIvcw8vh3EXiN8UOPq4Iq81rkOuBYbirkNic3MeGoBeBXLNQWfXAvxgyF8T xuPMVWd84FZ8MLqbsF2lx8sjSGm5p2yjj2Y+0iq8aGQ1C+hVdLA0KuXZxKAEa8goOz +qND2Gg3+M0pADZsqwQQIdelNIvEBdxkFxY/9Wfy+P+f1sMNf1oN+mXSQONuw5O2La z7OVFce+Ik1ru617XIFUdPxJk6KzfkYunZyl/pIKsGs/dIMCUurKXcUfOwLbxwg4Q4 51QQsAflSjYrA== From: Sasha Levin To: stable@vger.kernel.org, ilya.bakoulin@amd.com Cc: Mario Limonciello , Alex Deucher , Charlene Liu , Alex Hung , Daniel Wheeler , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: FAILED: Patch "drm/amd/display: Clear OPTC mem select on disable" failed to apply to 4.19-stable tree Date: Wed, 27 Mar 2024 08:26:21 -0400 Message-ID: <20240327122621.2841037-1-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Hint: ignore X-stable: review Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . Thanks, Sasha Acked-by: Alex Hung Reviewed-by: Charlene Liu Tested-by: Daniel Wheeler ------------------ original commit in Linus's tree ------------------ From b4e05bb1dec53fe28c3c88425aded824498666e5 Mon Sep 17 00:00:00 2001 From: Ilya Bakoulin Date: Wed, 3 Jan 2024 09:42:04 -0500 Subject: [PATCH] drm/amd/display: Clear OPTC mem select on disable [Why] Not clearing the memory select bits prior to OPTC disable can cause DSC corruption issues when attempting to reuse a memory instance for another OPTC that enables ODM. [How] Clear the memory select bits prior to disabling an OPTC. Cc: Mario Limonciello Cc: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Charlene Liu Acked-by: Alex Hung Signed-off-by: Ilya Bakoulin Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/optc/dcn32/dcn32_optc.c | 3 +++ drivers/gpu/drm/amd/display/dc/optc/dcn35/dcn35_optc.c | 3 +++ 2 files changed, 6 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/optc/dcn32/dcn32_optc.c b/drive= rs/gpu/drm/amd/display/dc/optc/dcn32/dcn32_optc.c index 1788eb29474b4..8234935433254 100644 --- a/drivers/gpu/drm/amd/display/dc/optc/dcn32/dcn32_optc.c +++ b/drivers/gpu/drm/amd/display/dc/optc/dcn32/dcn32_optc.c @@ -173,6 +173,9 @@ static bool optc32_disable_crtc(struct timing_generator= *optc) OPTC_SEG3_SRC_SEL, 0xf, OPTC_NUM_OF_INPUT_SEGMENT, 0); =20 + REG_UPDATE(OPTC_MEMORY_CONFIG, + OPTC_MEM_SEL, 0); + /* disable otg request until end of the first line * in the vertical blank region */ diff --git a/drivers/gpu/drm/amd/display/dc/optc/dcn35/dcn35_optc.c b/drive= rs/gpu/drm/amd/display/dc/optc/dcn35/dcn35_optc.c index 3d6c1b2c2b4d6..5b15475088503 100644 --- a/drivers/gpu/drm/amd/display/dc/optc/dcn35/dcn35_optc.c +++ b/drivers/gpu/drm/amd/display/dc/optc/dcn35/dcn35_optc.c @@ -145,6 +145,9 @@ static bool optc35_disable_crtc(struct timing_generator= *optc) OPTC_SEG3_SRC_SEL, 0xf, OPTC_NUM_OF_INPUT_SEGMENT, 0); =20 + REG_UPDATE(OPTC_MEMORY_CONFIG, + OPTC_MEM_SEL, 0); + /* disable otg request until end of the first line * in the vertical blank region */ --=20 2.43.0