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Message-ID: <97fd3a9a-1fe6-658f-5fee-8541abccb300@kernel.org>
Date:   Tue, 18 Apr 2023 08:40:02 +0200
From:   Jiri Slaby <jirislaby@...nel.org>
To:     Hans de Goede <hdegoede@...hat.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     linux-kernel@...r.kernel.org,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>
Subject: Re: [PATCH] ACPI: video: Add backlight=native DMI quirk for Lenovo
 Ideapad Z470

On 17. 04. 23, 15:09, Hans de Goede wrote:
> Hi,
> 
> On 4/17/23 13:40, Rafael J. Wysocki wrote:
>> On Mon, Apr 17, 2023 at 12:48 PM Jiri Slaby (SUSE) <jirislaby@...nel.org> wrote:
>>>
>>> From: Hans de Goede <hdegoede@...hat.com>
>>>
>>> The Lenovo Ideapad Z470 predates Windows 8, so it defaults to using
>>> acpi_video for backlight control. But this is not functional on this
>>> model.
>>>
>>> Add a DMI quirk to use the native backlight interface which works.
>>>
>>> Link: https://bugzilla.suse.com/show_bug.cgi?id=1208724
>>> Signed-off-by: Jiri Slaby (SUSE) <jirislaby@...nel.org>
>>> Cc: Hans de Goede <hdegoede@...hat.com>
>>> Cc: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
>>
>> Hans, can you please give your S-o-b for this one?
> 
> Hmm, I do not believe that I wrote this patch
> (also see the suse bugzilla link in the comment it adds) ?
> 
> I guess it started as a copy of my "ACPI: video: Add
> backlight=native DMI quirk for Acer Aspire 3830TG" patch
> and that is why I was kept as the author ?
> 
> Anyways I'm fine with me being the author, or with Jiri
> being the author. Pick a tag depending on the answer:

Huh, sorry. I forgot to --reset-author. Let me fix this mess up.

Thanks.

> Signed-off-by: Hans de Goede <hdegoede@...hat.com>
> Reviewed-by: Hans de Goede <hdegoede@...hat.com>
> 
> Regards,
> 
> Hans
> 
> 
> 
> 
> 
> 
>>
>>> ---
>>>   drivers/acpi/video_detect.c | 9 +++++++++
>>>   1 file changed, 9 insertions(+)
>>>
>>> diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
>>> index 69ef2d9710c2..af5cea005f54 100644
>>> --- a/drivers/acpi/video_detect.c
>>> +++ b/drivers/acpi/video_detect.c
>>> @@ -459,6 +459,15 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
>>>                  DMI_MATCH(DMI_BOARD_NAME, "Lenovo IdeaPad S405"),
>>>                  },
>>>          },
>>> +       {
>>> +        /* https://bugzilla.suse.com/show_bug.cgi?id=1208724 */
>>> +        .callback = video_detect_force_native,
>>> +        /* Lenovo Ideapad Z470 */
>>> +        .matches = {
>>> +               DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
>>> +               DMI_MATCH(DMI_PRODUCT_VERSION, "IdeaPad Z470"),
>>> +               },
>>> +       },
>>>          {
>>>           /* https://bugzilla.redhat.com/show_bug.cgi?id=1187004 */
>>>           .callback = video_detect_force_native,
>>> --
>>> 2.40.0
>>>
>>
> 

-- 
js

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