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 BD9401DE88F; Tue, 8 Oct 2024 13:07:26 +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=1728392846; cv=none; b=HoOSsRLVlIo6gYCUwnPuM/wsUbR+d1KwTM8QL8fVixCqK3Gv198njOjbVB9dbWYQrdyBrYbjGOdB8beibTxpUt59+mA46XYYbPGRXSavKSz3Xd7n5/nYrPAJv9x40+waSljMmbGDVZEAwUqaddu5PVKLeGAvgCeLSD7RpmOj6Og= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728392846; c=relaxed/simple; bh=QB7nJDlcDLOi1Rd0Baea0L6s7RRVztaM5UmcWIsw+ow=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Rx3sAlPvz4dcYl7hqX6CXN02qFhX7fDI7bd/ADl0Qrx+QsiHdNaIdwmpQFcm88EB7NhTl9Tg5Ip5qjEJTby5d783UNYUL7M/qGtvCOF05+sU6n4YrJTeBZ6ip1JqOAfdZgSYisnx5Pt2YBpe/6wsDKKlBf5EWffb2ELszdIEbWc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=N5BbCxIK; 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="N5BbCxIK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3E167C4CEC7; Tue, 8 Oct 2024 13:07:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1728392846; bh=QB7nJDlcDLOi1Rd0Baea0L6s7RRVztaM5UmcWIsw+ow=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=N5BbCxIKilgiKJjHwL/+/ptUOELmIZXUbDLZ0/VIAkffzqXXQZialAg2D4iROSW1E YeZc4qcClCgBc/acmycFLsZSzYPez61iC/Dp+5R9t7/vsdLfmXTxVbbZsKWmtMdpvs yiwcg+9uwRakL9JtRTa9iDSb8rF4JxUA68gV7HA0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Harry Wentland , =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= , Mario Limonciello , Alex Deucher , Sasha Levin Subject: [PATCH 6.11 536/558] drm/amd/display: Allow backlight to go below `AMDGPU_DM_DEFAULT_MIN_BACKLIGHT` Date: Tue, 8 Oct 2024 14:09:26 +0200 Message-ID: <20241008115723.325033309@linuxfoundation.org> X-Mailer: git-send-email 2.46.2 In-Reply-To: <20241008115702.214071228@linuxfoundation.org> References: <20241008115702.214071228@linuxfoundation.org> User-Agent: quilt/0.67 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-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.11-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mario Limonciello [ Upstream commit 87d749a6aab73d8069d0345afaa98297816cb220 ] The issue with panel power savings compatibility below `AMDGPU_DM_DEFAULT_MIN_BACKLIGHT` happens at `AMDGPU_DM_DEFAULT_MIN_BACKLIGHT` as well. That issue will be fixed separately, so don't prevent the backlight brightness from going that low. Cc: Harry Wentland Cc: Thomas Weißschuh Link: https://lore.kernel.org/amd-gfx/be04226a-a9e3-4a45-a83b-6d263c6557d8@t-8ch.de/T/#m400dee4e2fc61fe9470334d20a7c8c89c9aef44f Reviewed-by: Harry Wentland Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index ccb1883a67ff5..1ab7cd8a6b6ae 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -4485,7 +4485,7 @@ static void amdgpu_dm_update_backlight_caps(struct amdgpu_display_manager *dm, int spread = caps.max_input_signal - caps.min_input_signal; if (caps.max_input_signal > AMDGPU_DM_DEFAULT_MAX_BACKLIGHT || - caps.min_input_signal < AMDGPU_DM_DEFAULT_MIN_BACKLIGHT || + caps.min_input_signal < 0 || spread > AMDGPU_DM_DEFAULT_MAX_BACKLIGHT || spread < AMDGPU_DM_MIN_SPREAD) { DRM_DEBUG_KMS("DM: Invalid backlight caps: min=%d, max=%d\n", -- 2.43.0