> >> On 28 of September 2010 10:40:42 Arun Murthy wrote: > >> > The existing pwm based led and backlight driver makes use of the > >> > pwm(include/linux/pwm.h). So all the board specific pwm drivers > will > >> > be exposing the same set of function name as in > include/linux/pwm.h. > >> > As a result build fails. > >> > >> Which build fails? One with multi-SoC support? Please be more > specific. > > Sure will add this in v2. > > > > Could you clarify for the benefit of all, which specific issues you are > trying to address with this patch series 1. Now since all the pwm driver export same set of function(pwm_enable, pwm_disable,..), if it happens that there are two pwm driver enabled this leads to re-declaration and results in build failure. The proper way to handle this would be to have a pwm core function, and let all the pwm drivers register to the pwm core driver. 2. The above scenario also occurs in place of multi-soc environment. Lets say OMAP has a pwm module and that is being used for primary lcd backlight and twl has a backlight that is being used for controlling the charging led brightness. In this case there exists 2 pwm drivers and one pwm driver will be used by pwm_bl.c and other by leds-pwm.c Thanks and Regards, Arun R Murthy -------------
