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 089EA17BDD; Sat, 3 Feb 2024 04:13:18 +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=1706933598; cv=none; b=BeZRfoCNtABdzNMPzjoSb4CiosVMt6ao0YIPNuYpbEcP1RaTBbqoPgO3i6/gesWNHFuIjrYUfrVY2sxYMDxa0ZiMklAoDgqXJ+uhwEeL0XYmuF5gtTgOQp5aNZhajd95yiF3vd49H079M3nRjWNPn4vlz+YL6T4jT/jVpF6RuC8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706933598; c=relaxed/simple; bh=+/7fe3ELrqWbQknTY1UQv5NrpJ0lKgDCOnGxsG6VnoA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Jr1OQvbWxw99yumoNbAKO2ZoEQlZcNrZyYJ8SiX5qqaZ0bBcaxBei8vZk8oTWa9vcpv0xOPzKefpZP9Vm/mAX1y355NqXxxmjDhrhMBWQgW8kZaK4ReBzNtjVpYDQ3nn88vvwuFZAsIAUQnZgUbfd+zKsNzn+WwaY6/x9wd9vK0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=I4DIrWgv; 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="I4DIrWgv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BE8B8C43390; Sat, 3 Feb 2024 04:13:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1706933597; bh=+/7fe3ELrqWbQknTY1UQv5NrpJ0lKgDCOnGxsG6VnoA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=I4DIrWgvWRCxY+8JthMcXLeXJgxTx7jEjkxrp7njpfX44bKOBpckbDdjfN+Ky1gob j3C9KD6IC4tVFUBL7fw4GPORnY9vzNBV/B7hbPjuAsWPT3dVtf84BPx2moCJOYmt6b e1iLC4qaZHstkF7QFXhIo/pPiuhAMAFp0TmpC/s0= 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 6.6 165/322] drm/amd/display: Fix tiled display misalignment Date: Fri, 2 Feb 2024 20:04:22 -0800 Message-ID: <20240203035404.568961980@linuxfoundation.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240203035359.041730947@linuxfoundation.org> References: <20240203035359.041730947@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 6.6-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 8cdf380bf366..46b10ff8f6d4 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1948,6 +1948,10 @@ 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