Mark Brown wrote:
>
> On Wed, Dec 07, 2011 at 04:21:20PM +0900, Kukjin Kim wrote:
>
> > If switch frequency is 1kHz, the value of pwm_period_ns should be
> 100 at
> > mach-crag6410.c not 10?
>
> I guess so, please go ahead and make the change - we can always revert
> if it doesn't work.
On Wed, Dec 07, 2011 at 04:21:20PM +0900, Kukjin Kim wrote:
> If switch frequency is 1kHz, the value of pwm_period_ns should be 100 at
> mach-crag6410.c not 10?
I guess so, please go ahead and make the change - we can always revert
if it doesn't work.
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Jingoo Han wrote:
>
> The SMDK board uses LT3591 as backlight LED driver of LTE480WV LCD.
> According to the LT3591 datasheet, the switching frequency should
> be 1MHz. So, PWM period is calculated by following formula:
>
> PWM period = 1/switching frequency
> = 1/1MHz
> = 1000n
