Just FYI, I did not find anything in the LCD integration documentation on changing the PWM frequency of the backlight control output.

OK nvm. I was able to change it by doing the following:

In file:

/dm3730logic_gingerbread/kernel/arch/arm/mach-omap2/board-omap3logic-display.c

I modified the following function:

dm3730_torpedo_bl_set_intensity(int level)

In the function there are 2 spots where 0xFFFF0000 shows up in the existing code:

omap_dm_timer_set_load(intensity_timer, 1, 0xFFFF0000);

AND

omap_dm_timer_set_match(intensity_timer, 1,
                                        (0xffff0000) | (level<<8));

Change the 0xFFFF0000 to something bigger, i.e. 0xFFFFF800 will give you roughly 6Khz.

And change level << 8 to level << 3 depending on how much you shifted. For instance, 0xFFFFF800 is a 5 left shift of the original 0xFFFF0000, I would shift the level only 3 right this time.

Hope this helps other who need to increase the LCD_PWM line.

Sorry about the above post. I mean 0xFFFFF800 is a right shift with carry of 5 bits. So therefore, you would change level with left shift 3 times only to match.

Got my left and right mixed up!