Re: [PATCH 4/4] pwm_backlight: Add support for the whole range of the PWM in DT mode

On Tue, Jan 22, 2013 at 02:39:56PM +0100, Peter Ujfalusi wrote:

When booting with DT make it possible to use the whole range of the PWM when
controlling the backlight in a same way it is possible when the kernel is
booted in non DT mode.
A new property "max-brightness-level" can be used to specify the maximum
value the PWM can handle (time slots).
DTS files can use either the "brightness-levels" or the "max-brightness-level"
to configure the PWM.
In case both of these properties exist the driver will prefer the
"brightness-levels" over the "max-brightness-level".

Signed-off-by: Peter Ujfalusi <redacted>

I don't think this is a good idea. The brightness-levels property was
specifically introduced in order to have a more reasonable interface to
specify brightness levels.

As such, all uses of the non-DT max_brightness to be deprecated. It is
only kept for backwards compatibility with non-DT boards.

Thierry