From: Daniel Thompson <danielt@kernel.org>
To: Junjie Cao <junjie.cao@intel.com>
Cc: Lee Jones <lee@kernel.org>, Jingoo Han <jingoohan1@gmail.com>,
dri-devel@lists.freedesktop.org, linux-leds@vger.kernel.org,
linux-kernel@vger.kernel.org, Pengyu Luo <mitltlatltl@gmail.com>,
stable@vger.kernel.org, Junjie Cao <junjie.cao@linux.dev>
Subject: Re: [PATCH v3 3/3] backlight: aw99706: Honor the core blank state in update_status()
Date: Mon, 10 Aug 2026 11:32:47 +0100 [thread overview]
Message-ID: <anmoz-Of5W-pjz-6@aspen.lan> (raw)
In-Reply-To: <20260804030255.1934470-4-junjie.cao@intel.com>
On Tue, Aug 04, 2026 at 11:02:55AM +0800, Junjie Cao wrote:
> From: Junjie Cao <junjie.cao@linux.dev>
>
> update_status() passes props.brightness straight to the hardware and
> ignores the power/blank state tracked by the core. Writing 4 to the
> bl_power sysfs attribute or blanking the framebuffer therefore leaves
> the backlight lit.
>
> Use backlight_get_brightness(), which returns 0 while the device is
> blanked.
>
> Fixes: 147b38a5ad06 ("backlight: aw99706: Add support for Awinic AW99706 backlight")
> Cc: stable@vger.kernel.org
> Signed-off-by: Junjie Cao <junjie.cao@linux.dev>
Reviewed-by: Daniel Thompson (RISCstar) <danielt@kernel.org>
Daniel.
prev parent reply other threads:[~2026-08-10 10:32 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-04 3:02 [PATCH v3 0/3] backlight: aw99706: DT parsing and blank state fixes Junjie Cao
2026-08-04 3:02 ` [PATCH v3 1/3] backlight: aw99706: Fix DT property names to match binding Junjie Cao
2026-08-10 10:29 ` Daniel Thompson
2026-08-04 3:02 ` [PATCH v3 2/3] backlight: aw99706: Validate all DT property values consistently Junjie Cao
2026-08-10 10:32 ` Daniel Thompson
2026-08-04 3:02 ` [PATCH v3 3/3] backlight: aw99706: Honor the core blank state in update_status() Junjie Cao
2026-08-10 10:32 ` Daniel Thompson [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=anmoz-Of5W-pjz-6@aspen.lan \
--to=danielt@kernel.org \
--cc=dri-devel@lists.freedesktop.org \
--cc=jingoohan1@gmail.com \
--cc=junjie.cao@intel.com \
--cc=junjie.cao@linux.dev \
--cc=lee@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-leds@vger.kernel.org \
--cc=mitltlatltl@gmail.com \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox