On 04/21/13 07:01, Arnd Bergmann wrote:
From: Tomasz Figa<t.figa@xxxxxxxxxxx> This adds a new clocksource driver for the PWM timer that is present in most Samsung SoCs, based on the existing driver in arch/arm/plat-samsung/samsung-time.c and many changes implemented by Tomasz Figa. Originally, the conversion of all Samsung machines to the new driver was planned for 3.10, but that work ended up being too late and too invasive just before the merge window. Unfortunately, other changes in the Exynos platform resulted in some Exynos4 setups, particularly the Universal C210 board to be broken. In order to fix that with minimum risk, so we now leave the existing pwm clocksource driver in place for all older platforms and use the new driver only for device tree enabled boards. This way, we can get the broken machines running again using DT descriptions. All clocksource changes were implemented by Tomasz, while the DT registration was rewritten by Arnd. Signed-off-by: Arnd Bergmann<arnd@xxxxxxxx> Cc: Tomasz Figa<t.figa@xxxxxxxxxxx> Cc: Kyungmin Park<kyungmin.park@xxxxxxxxxxx> Cc: Kukjin Kim<kgene.kim@xxxxxxxxxxx>
Acked-by: Kukjin Kim <kgene.kim@xxxxxxxxxxx> Thanks. - Kukjin
Cc: Ben Dooks<ben-linux@xxxxxxxxx> Cc: John Stultz<john.stultz@xxxxxxxxxx> Cc: Thomas Gleixner<tglx@xxxxxxxxxxxxx> --- This is my final attempt to fix the Exynos4 regressions we have, since Tomasz put a lot of work into getting this running, and I gave him a hard time about some of the earlier patches. Tomasz, can you have a look at this to see if it would actually help? I have removed all the non-DT registration from your code, as well as the interface to the pwm subsystem, since I assume the existing code will work for all users we care about.
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