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 0EC18322A3B; Mon, 18 Aug 2025 13:34:43 +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=1755524083; cv=none; b=OS98PnnGyzYgZj5xstwzk7MdxeOFm08MqqyuPW38p11UNSHwyg5uxUzTqtAJ2sxgHpX2567YE75wzcOI3VhkgXA2dLSwGxaRie0u+IxKQGHimbbC0336V3wpA+UKWn5U3481zLu98Kd8MS9rOaPmzU9wVP3tOUZUU6E/Lfifnag= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755524083; c=relaxed/simple; bh=/lqcXO84IJYQDZQchY5B3peqbAEyZltgr6jqpcWm4i0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=c7iZ9FsMNxbcQXjpuKtuuRu44IcuvjjKeUeMBcibW/UmznlGhikYBKBCO5qp5hxnfM4ihJBaTIsmG84s7ggZT2HLHKUY3588xFJGKQLKIVqJ8kT6BpEjKVsE2rPrxwLLVMjfdBvmxpb+E/m0mU7JZWdObepZ/xDAv4wAuRhqE/s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=eRCI/2zB; 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="eRCI/2zB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 87F85C4CEF1; Mon, 18 Aug 2025 13:34:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1755524082; bh=/lqcXO84IJYQDZQchY5B3peqbAEyZltgr6jqpcWm4i0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eRCI/2zBWNzRTy9MdWkfYV0Zw432wd/7cNOTtZMoyo53Jk3Qxn7o4Sdvtu1wlUroI Xgfifm5UhR2krEiN34WlzHHEO0xwqhFkI4goI7hwi44T6GqKkllZQ8M+9uXZO4zc1a VQ5xir4JhNmDWbxBlMncmjoho8KXfPiUSlVoMIsc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Nicholas Kazlauskas , Roman Li , Ivan Lipski , Daniel Wheeler , Alex Deucher , Sasha Levin Subject: [PATCH 6.15 330/515] drm/amd/display: Disable dsc_power_gate for dcn314 by default Date: Mon, 18 Aug 2025 14:45:16 +0200 Message-ID: <20250818124511.135083393@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250818124458.334548733@linuxfoundation.org> References: <20250818124458.334548733@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Roman Li [ Upstream commit 02f3ec53177243d32ee8b6f8ba99136d7887ee3a ] [Why] "REG_WAIT timeout 1us * 1000 tries - dcn314_dsc_pg_control line" warnings seen after resuming from s2idle. DCN314 has issues with DSC power gating that cause REG_WAIT timeouts when attempting to power down DSC blocks. [How] Disable dsc_power_gate for dcn314 by default. Reviewed-by: Nicholas Kazlauskas Signed-off-by: Roman Li Signed-off-by: Ivan Lipski Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c index f47cd281d6e7..7aab08151e72 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c @@ -926,6 +926,7 @@ static const struct dc_debug_options debug_defaults_drv = { .seamless_boot_odm_combine = true, .enable_legacy_fast_update = true, .using_dml2 = false, + .disable_dsc_power_gate = true, }; static const struct dc_panel_config panel_config_defaults = { -- 2.39.5