[PATCH v2] pwm: add CSR SiRFSoC PWM driver

On Friday 31 January 2014, Barry Song wrote:

quoted

Is SRC_OSC_RATE the rate of spwm->clk? If so, it would be nice to just call
clk_get_rate() here, in case you ever have a chip with a different rate.

SRC_OSC_RATE is the fixed frequency of crystal oscillator, but
spwm->clk comes from the IO bus. the design is a little strange, pwm
channels don't use the clock of PWM controller to generate
period/duty, but use other sources.

How about modeling  that other source as a fixed-rate clock in DT
then?

	Arnd