From: Tomi Valkeinen <tomi.valkeinen@ti.com>
To: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Jingoo Han <jingoohan1@gmail.com>,
linux-fbdev@vger.kernel.org, Lee Jones <lee.jones@linaro.org>,
dri-devel@lists.freedesktop.org,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Subject: Re: [PATCH 5/5] backlight: led_bl: rewrite led_bl_parse_levels()
Date: Tue, 21 Apr 2020 08:52:02 +0300 [thread overview]
Message-ID: <2233a194-bc8e-99ba-d302-edd087a3adfa@ti.com> (raw)
In-Reply-To: <20200420160154.4xxv37fofx37ow7q@holly.lan>
On 20/04/2020 19:01, Daniel Thompson wrote:
> On Fri, Apr 17, 2020 at 02:33:12PM +0300, Tomi Valkeinen wrote:
>> led_bl_parse_levels() is rather difficult to follow. Rewrite it with a
>> more obvious code flow.
>
> ... that introduces new behaviour.
>
> There's a couple of new behaviours here but the one that particular
> attracted my attention is the disregarding the "default-brightness-level" if
> there is no table. That looks like a bug to me.
I think the previous behavior was a (minor) bug: how can there be default brightness level if there
are no brightness levels? The led-backlight.txt is a bit lacking (another thing to improve...) but
led-backlight mimics pwm-backlight, and pwm-backlight.txt says
default-brightness-level: The default brightness level (index into the array defined by the
"brightness-levels" property)
But I agree, it's a change, so good to mention.
> Please can you add any intended changes of behaviour in the patch
> header?
Ok.
Tomi
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next prev parent reply other threads:[~2020-04-21 5:52 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-17 11:33 [PATCH 1/5] backlight: led_bl: fix cosmetic issues Tomi Valkeinen
2020-04-17 11:33 ` [PATCH 2/5] backlight: led_bl: drop useless NULL initialization Tomi Valkeinen
2020-04-20 15:29 ` Daniel Thompson
2020-04-17 11:33 ` [PATCH 3/5] backlight: led_bl: add led_access locking Tomi Valkeinen
2020-04-20 15:45 ` Daniel Thompson
2020-04-17 11:33 ` [PATCH 4/5] backlight: led_bl: fix led -> backlight brightness mapping Tomi Valkeinen
2020-04-20 15:55 ` Daniel Thompson
2020-04-21 5:57 ` Tomi Valkeinen
2020-04-17 11:33 ` [PATCH 5/5] backlight: led_bl: rewrite led_bl_parse_levels() Tomi Valkeinen
2020-04-20 16:01 ` Daniel Thompson
2020-04-21 5:52 ` Tomi Valkeinen [this message]
2020-04-21 10:48 ` Daniel Thompson
2020-04-21 11:26 ` Tomi Valkeinen
2020-04-21 11:53 ` Tomi Valkeinen
2020-04-20 15:29 ` [PATCH 1/5] backlight: led_bl: fix cosmetic issues Daniel Thompson
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