Re: [PATCH 00/22] Fallback to native backlight

From: Akihiko Odaki <akihiko.odaki@daynix.com>
To: Jani Nikula <jani.nikula@linux.intel.com>
Cc: "David Airlie" <airlied@gmail.com>,
	"Daniel Vetter" <daniel@ffwll.ch>,
	"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
	"Maxime Ripard" <mripard@kernel.org>,
	"Thomas Zimmermann" <tzimmermann@suse.de>,
	"Jonathan Corbet" <corbet@lwn.net>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	"Len Brown" <lenb@kernel.org>,
	"Joonas Lahtinen" <joonas.lahtinen@linux.intel.com>,
	"Rodrigo Vivi" <rodrigo.vivi@intel.com>,
	"Tvrtko Ursulin" <tvrtko.ursulin@linux.intel.com>,
	"Lee, Chun-Yi" <jlee@suse.com>,
	"Hans de Goede" <hdegoede@redhat.com>,
	"Mark Gross" <markgross@kernel.org>,
	"Corentin Chary" <corentin.chary@gmail.com>,
	"Cezary Jackiewicz" <cezary.jackiewicz@gmail.com>,
	"Matthew Garrett" <mjg59@srcf.ucam.org>,
	"Pali Rohár" <pali@kernel.org>,
	"Jonathan Woithe" <jwoithe@just42.net>,
	"Ike Panhc" <ike.pan@canonical.com>,
	"Daniel Dadap" <ddadap@nvidia.com>,
	"Kenneth Chan" <kenneth.t.chan@gmail.com>,
	"Mattia Dongili" <malattia@linux.it>,
	"Henrique de Moraes Holschuh" <hmh@hmh.eng.br>,
	"Azael Avalos" <coproscefalo@gmail.com>,
	"Lee Jones" <lee@kernel.org>,
	"Daniel Thompson" <daniel.thompson@linaro.org>,
	"Jingoo Han" <jingoohan1@gmail.com>,
	"Helge Deller" <deller@gmx.de>,
	"Robert Moore" <robert.moore@intel.com>,
	dri-devel@lists.freedesktop.org, linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
	intel-gfx@lists.freedesktop.org,
	platform-driver-x86@vger.kernel.org,
	acpi4asus-user@lists.sourceforge.net,
	ibm-acpi-devel@lists.sourceforge.net,
	linux-fbdev@vger.kernel.org, devel@acpica.org
Subject: Re: [PATCH 00/22] Fallback to native backlight
Date: Mon, 24 Oct 2022 20:56:11 +0900	[thread overview]
Message-ID: <18478739-625b-0c16-cd5a-e05c5372a74a@daynix.com> (raw)
In-Reply-To: <87tu3te92n.fsf@intel.com>

On 2022/10/24 20:48, Jani Nikula wrote:
> On Mon, 24 Oct 2022, Akihiko Odaki <akihiko.odaki@daynix.com> wrote:
>> Commit 2600bfa3df99 ("ACPI: video: Add acpi_video_backlight_use_native()
>> helper") and following commits made native backlight unavailable if
>> CONFIG_ACPI_VIDEO is set and the backlight feature of ACPI video is
>> unavailable, which broke the backlight functionality on Lenovo ThinkPad
>> C13 Yoga Chromebook. Allow to fall back to native backlight in such
>> cases.
> 
> Where's the bug report with relevant logs, kconfigs, etc?

I haven't filed one. Should I? Please tell me where to report and what 
information you would need (to bugzilla.kernel.org with things mentioned 
in Documentation/admin-guide/reporting-issues.rst?)

Regards,
Akihiko Odaki

> 
> BR,
> Jani.
> 
>>
>> Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
>>
>> Akihiko Odaki (22):
>>    drm/i915/opregion: Improve backlight request condition
>>    ACPI: video: Introduce acpi_video_get_backlight_types()
>>    LoongArch: Use acpi_video_get_backlight_types()
>>    platform/x86: acer-wmi: Use acpi_video_get_backlight_types()
>>    platform/x86: asus-laptop: Use acpi_video_get_backlight_types()
>>    platform/x86: asus-wmi: Use acpi_video_get_backlight_types()
>>    platform/x86: compal-laptop: Use acpi_video_get_backlight_types()
>>    platform/x86: eeepc-laptop: Use acpi_video_get_backlight_types()
>>    platform/x86: fujitsu-laptop: Use acpi_video_get_backlight_types()
>>    platform/x86: ideapad-laptop: Use acpi_video_get_backlight_types()
>>    platform/x86: msi-laptop: Use acpi_video_get_backlight_types()
>>    platform/x86: msi-wmi: Use acpi_video_get_backlight_types()
>>    platform/x86: nvidia-wmi-ec-backlight: Use
>>      acpi_video_get_backlight_types()
>>    platform/x86: panasonic-laptop: Use acpi_video_get_backlight_types()
>>    platform/x86: samsung-laptop: Use acpi_video_get_backlight_types()
>>    platform/x86: sony-laptop: Use acpi_video_get_backlight_types()
>>    platform/x86: thinkpad_acpi: Use acpi_video_get_backlight_types()
>>    platform/x86: toshiba_acpi: Use acpi_video_get_backlight_types()
>>    platform/x86: dell-laptop: Use acpi_video_get_backlight_types()
>>    platform/x86: intel_oaktrail: Use acpi_video_get_backlight_types()
>>    ACPI: video: Remove acpi_video_get_backlight_type()
>>    ACPI: video: Fallback to native backlight
>>
>>   Documentation/gpu/todo.rst                    |  8 +--
>>   drivers/acpi/acpi_video.c                     |  2 +-
>>   drivers/acpi/video_detect.c                   | 54 ++++++++++---------
>>   drivers/gpu/drm/i915/display/intel_opregion.c |  3 +-
>>   drivers/platform/loongarch/loongson-laptop.c  |  4 +-
>>   drivers/platform/x86/acer-wmi.c               |  2 +-
>>   drivers/platform/x86/asus-laptop.c            |  2 +-
>>   drivers/platform/x86/asus-wmi.c               |  4 +-
>>   drivers/platform/x86/compal-laptop.c          |  2 +-
>>   drivers/platform/x86/dell/dell-laptop.c       |  2 +-
>>   drivers/platform/x86/eeepc-laptop.c           |  2 +-
>>   drivers/platform/x86/fujitsu-laptop.c         |  4 +-
>>   drivers/platform/x86/ideapad-laptop.c         |  2 +-
>>   drivers/platform/x86/intel/oaktrail.c         |  2 +-
>>   drivers/platform/x86/msi-laptop.c             |  2 +-
>>   drivers/platform/x86/msi-wmi.c                |  2 +-
>>   .../platform/x86/nvidia-wmi-ec-backlight.c    |  2 +-
>>   drivers/platform/x86/panasonic-laptop.c       |  2 +-
>>   drivers/platform/x86/samsung-laptop.c         |  2 +-
>>   drivers/platform/x86/sony-laptop.c            |  2 +-
>>   drivers/platform/x86/thinkpad_acpi.c          |  4 +-
>>   drivers/platform/x86/toshiba_acpi.c           |  2 +-
>>   drivers/video/backlight/backlight.c           | 18 +++++++
>>   include/acpi/video.h                          | 21 ++++----
>>   include/linux/backlight.h                     |  1 +
>>   25 files changed, 85 insertions(+), 66 deletions(-)
> 