From mboxrd@z Thu Jan 1 00:00:00 1970 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 DACB51CAA7; Sat, 3 Feb 2024 04:17:40 +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=1706933860; cv=none; b=Okp8zUd1s4TQRLKM4tOURiGLheE1ae6nlKyhB2Xrv9QAqAlDSZL+jboHPwYANWplkeAal9iVopziQbYu9TIwskL17K+XQ8UEp3HIkCykES0rICEeKb6qmyCItVMx+n5DceSQ9KKGaiOAYszFaiUIrdS6lZT+JrasO62OnsqR1IM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706933860; c=relaxed/simple; bh=nfT+3jKhPr/rxaWsYQKrdYhdVarLwvzxp8IofjXTPDI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=e/1C5UgWy0nhQosXnGRLbPlY6xCv/XPupHN76II3o84NLIalwAgdjBfOBDP/vzymiMPq0LaTBPf+ASyGS2N9G+EdPylghbhvJUPqbzGTQ2hDW1yfpYqMn42BZ9Wei//4Jd3DIf70ZUh/aKNzxs9oNLCqSvTjsKckUkyHEcTR/bs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=wykx7HSG; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="wykx7HSG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A1F5EC433F1; Sat, 3 Feb 2024 04:17:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1706933860; bh=nfT+3jKhPr/rxaWsYQKrdYhdVarLwvzxp8IofjXTPDI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wykx7HSGfl1Rqw1jISf2NLZiimQy07ObOTPKNt3x1huJb4LmWKaOy+NKaBLu6UmiC 2XY4lYx/f6QUFJTilmXSXAjGyLVykaBvijylHPhqWsaDl/zDkg6nCz3pnP62bcsWDl yTbGxx5kqBrKw6zdileEZ3o9gdFaQ7WnYHnaOXM8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Nicholas Kazlauskas , Hamza Mahfooz , Meenakshikumar Somasundaram , Alex Deucher , Sasha Levin Subject: [PATCH 6.7 171/353] drm/amd/display: Fix tiled display misalignment Date: Fri, 2 Feb 2024 20:04:49 -0800 Message-ID: <20240203035409.048049845@linuxfoundation.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240203035403.657508530@linuxfoundation.org> References: <20240203035403.657508530@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.7-stable review patch. If anyone has any objections, please let me know. ------------------ From: Meenakshikumar Somasundaram [ Upstream commit c4b8394e76adba4f50a3c2696c75b214a291e24a ] [Why] When otg workaround is applied during clock update, otgs of tiled display went out of sync. [How] To call dc_trigger_sync() after clock update to sync otgs again. Reviewed-by: Nicholas Kazlauskas Acked-by: Hamza Mahfooz Signed-off-by: Meenakshikumar Somasundaram Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/core/dc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index bc098098345c..bbdeda489768 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1964,6 +1964,10 @@ static enum dc_status dc_commit_state_no_check(struct dc *dc, struct dc_state *c wait_for_no_pipes_pending(dc, context); /* pplib is notified if disp_num changed */ dc->hwss.optimize_bandwidth(dc, context); + /* Need to do otg sync again as otg could be out of sync due to otg + * workaround applied during clock update + */ + dc_trigger_sync(dc, context); } if (dc->hwss.update_dsc_pg) -- 2.43.0