On 10/22/2013 03:24 PM, Thierry Reding wrote:

On Fri, Oct 18, 2013 at 12:48:12PM +0800, Mark Zhang wrote:

[...]

quoted

quoted

Okay, I just want to set the "notify" function pointer in "struct
platform_pwm_backlight_data", because I want to tune the brightness
value before the pwm-bl sets the brightness to hardware. I don't know
how to do that, unless we define the platform data explicitly.

Okay, my question should have been what you need the functions for and
why you think you need them.

If I understanding you correctly, I suppose I've said that: "because I
want to tune the brightness value before the pwm-bl sets the brightness
to hardware".

Mark

Thierry