Hi Daniel,
...
> > +static int mp3309c_bl_update_status(struct backlight_device *bl) {
> > + struct mp3309c_chip *chip = bl_get_data(bl);
> > + int brightness = backlight_get_brightness(bl);
> > + struct pwm_state pwmstate;
> > + unsigned int analog_val, bits_val;
> > + int i, ret;
> >
On Mon, Sep 25, 2023 at 02:26:09PM +0200, Flavio Suligoi wrote:
> diff --git a/drivers/video/backlight/mp3309c.c
> b/drivers/video/backlight/mp3309c.c
> new file mode 100644
> index ..923ac7f7b291
> --- /dev/null
> +++ b/drivers/video/backlight/mp3309c.c
> @@ -0,0 +1,398 @@
> ...
>
The Monolithic Power (MPS) MP3309C is a WLED step-up converter, featuring a
programmable switching frequency to optimize efficiency.
The brightness can be controlled either by I2C commands (called "analog"
mode) or by a PWM input signal (PWM mode).
This driver supports both modes.
For DT
