linux-kernel - Re: [PATCH AUTOSEL 5.13 31/59] platform/x86: asus-nb-wmi: Revert "add support for ASUS ROG Zephyrus G14 and G15"

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Date:   Fri, 9 Jul 2021 18:50:59 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     Hans de Goede <hdegoede@...hat.com>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        "Luke D. Jones" <luke@...nes.dev>,
        acpi4asus-user@...ts.sourceforge.net,
        platform-driver-x86@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 5.13 31/59] platform/x86: asus-nb-wmi: Revert
 "add support for ASUS ROG Zephyrus G14 and G15"

On Mon, Jul 05, 2021 at 07:09:03PM +0200, Hans de Goede wrote:
>Hi,
>
>On 7/5/21 7:08 PM, Hans de Goede wrote:
>> Hi,
>>
>> On 7/5/21 5:27 PM, Sasha Levin wrote:
>>> From: "Luke D. Jones" <luke@...nes.dev>
>>>
>>> [ Upstream commit 28117f3a5c3c8375a3304af76357d5bf9cf30f0b ]
>>>
>>> The quirks added to asus-nb-wmi for the ASUS ROG Zephyrus G14 and G15 are
>>> wrong, they tell the asus-wmi code to use the vendor specific WMI backlight
>>> interface. But there is no such interface on these laptops.
>>>
>>> As a side effect, these quirks stop the acpi_video driver to register since
>>> they make acpi_video_get_backlight_type() return acpi_backlight_vendor,
>>> leaving only the native AMD backlight driver in place, which is the one we
>>> want. This happy coincidence is being replaced with a new quirk in
>>> drivers/acpi/video_detect.c which actually sets the backlight_type to
>>> acpi_backlight_native fixinf this properly. This reverts
>>> commit 13bceda68fb9 ("platform/x86: asus-nb-wmi: add support for ASUS ROG
>>> Zephyrus G14 and G15").
>>>
>>> Signed-off-by: Luke D. Jones <luke@...nes.dev>
>>> Link: https://lore.kernel.org/r/20210419074915.393433-3-luke@ljones.dev
>>> Signed-off-by: Hans de Goede <hdegoede@...hat.com>
>>> Signed-off-by: Sasha Levin <sashal@...nel.org>
>>
>> Note this should only be cherry-picked if commit 2dfbacc65d1d
>> ("ACPI: video: use native backlight for GA401/GA502/GA503"):
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2dfbacc65d1d2eae587ccb6b93f6280542641858
>>
>> Is also being cherry-picked, since the quirk added in that commit
>> replaces the quirks which are being reverted here.
>
>p.s.
>
>The same remark also replies to the 5.12 and 5.10 cherry-picks of
>this commit.

I'll take it too, thanks!

-- 
Thanks,
Sasha