linux-kernel - Re: (subset) [PATCH v1 1/1] backlight: mp3309c: fix leds flickering in pwm mode

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Message-ID: <20240502164853.GB1200070@google.com>
Date: Thu, 2 May 2024 17:48:53 +0100
From: Lee Jones <lee@...nel.org>
To: Daniel Thompson <daniel.thompson@...aro.org>,
	Jingoo Han <jingoohan1@...il.com>, Helge Deller <deller@....de>,
	Dan Carpenter <dan.carpenter@...aro.org>,
	Flavio Suligoi <f.suligoi@...m.it>
Cc: dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: (subset) [PATCH v1 1/1] backlight: mp3309c: fix leds flickering
 in pwm mode

On Thu, 02 May 2024, Lee Jones wrote:

> On Wed, 17 Apr 2024 17:31:05 +0200, Flavio Suligoi wrote:
> > The mp3309 has two configuration registers, named according to their
> > address (0x00 and 0x01).
> > In the second register (0x01), the bit DIMS (Dimming Mode Select) must
> > be always 0 (zero), in both analog (via i2c commands) and pwm dimming
> > mode.
> > 
> > In the initial driver version, the DIMS bit was set in pwm mode and
> > reset in analog mode.
> > But if the DIMS bit is set in pwm dimming mode and other devices are
> > connected on the same i2c bus, every i2c commands on the bus generates a
> > flickering on the LEDs powered by the mp3309c.
> > 
> > [...]
> 
> Applied, thanks!
> 
> [1/1] backlight: mp3309c: fix leds flickering in pwm mode
>       commit: ce60cddc2abf61902dfca71d630624db95315124

Applied, but in future it's; I2C, PWM and LED, thanks.

-- 
Lee Jones [李琼斯]