[PATCH v2 00/18] Final Samsung PWM support cleanup
Tomasz Figa
tomasz.figa at gmail.com
Sat Jun 22 09:10:47 EDT 2013
On Friday 21 of June 2013 16:04:38 Arnd Bergmann wrote:
> On Friday 21 June 2013, Tomasz Figa wrote:
> > Since we now have a proper Samsung PWM clocksource driver in place,
> > we can proceed with further cleanup of PWM timers support on Samsung
> > SoCs.>
> > This series attempts to achieve this goal by:
> > 1) moving remaining Samsung platforms to the new clocksource driver
> > 2) removing old clocksource driver
> > 3) adding new multiplatform- and DT-aware PWM driver
> > 4) moving all Samsung platforms to use the new PWM driver
> > 5) removing old PWM driver
> > 6) removing all PWM-related code that is not used anymore
> >
> > Cleaning up the PWM driver is a bit tricky, because the design of
> > current driver makes it completely unsuitable for DT and
> > multiplatform and would require a heavy rework to make it usable,
> > breaking any existing Samsung PWM users by the way. To avoid any
> > breakage I decided to keep the old driver, add new one, move all
> > platforms to it and then remove the old one.
> >
> > See particular patches for more detailed descriptions.
> >
> > On S3C6410-based Tiny6410 (Mini6410-compatible), after enabling
> > pwm-beeper and Exynos4210-based Origen board (with PWM0 attached to a
> > scope):
> >
> > Tested-by: Tomasz Figa <tomasz.figa at gmail.com>
>
> Looks good to me,
>
> Acked-by: Arnd Bergmann <arnd at arndb.de>
Thanks.
> Two small comments:
>
> * always use 'git format-patch -M' to detect renames (patch 10)
>
> * for new code, don't use __raw_readl and similar functions but
> use readl_relaxed or plain readl.
Just posted v3 of patches 10 and 11 addressing these issues.
Best regards,
Tomasz
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