Re: [PATCH v5 00/14] ARM: samsung-time: Prepare for multiplatform support

[Tomasz Figa <tomasz.figa@gmail.com>]

On Friday 12 of April 2013 21:17:16 Tomasz Figa wrote:
> This series is an attempt to make the samsung-time clocksource driver
> ready for multiplatform kernels. It moves the driver to
> drivers/clocksource, cleans it up from uses of static platform-specific
> definitions, simplifies timer interrupt handling and adds Device Tree
> support.
> 
> The samsung_pwm clocksource driver is made the master driver, which
> exposes a single function to the PWM driver to get required data. Only
> samsung-time driver is reworked to use the master driver at this time,
> since the PWM driver can be already considered broken at the moment and
> needs separate series of several patches to fix and clean it up, which
> I am already working on.
> 
> Tested on Universal C210 board with Device Tree. Not tested without
> Device Tree, since it has been already broken before this series.
> Compile tested for other related SoCs.
> 
> Changes since v4:
> (http://thread.gmane.org/gmane.linux.kernel.samsung-soc/17464)
>  - Changed the design again - now clocksource driver is considered the
> master and exports a single function to get access to things like base
> address, hardware variant information, shared spinlock for register
> access synchronization and interrupt numbers
>  - Renamed the clocksource driver to samsung_pwm
>  - Cleaned up the code a bit more
>  - Added clocksource_of_init support
> 
> Changes since v3:
> (http://thread.gmane.org/gmane.linux.kernel.samsung-soc/16664/)
>  - Changed the design to use common (master) driver for operations that
>    can be done from both clocksource and PWM drivers (as suggested by
>    Arnd Bergmann) - needed to properly synchronize access to PWM
> registers - Moved handling of PWM prescaler and divider to master
> driver
> 
> Changes since v2:
> (http://thread.gmane.org/gmane.linux.kernel.samsung-soc/16158)
>  - Addressed comments from Rob Herring and Mark Rutland
>  - Removed unused register definitions
>  - Replaced samsung,source-timer and samsung,event-timer properties
>    with samsung,pwm-outputs property that defines which PWM channels
>    are reserved for PWM outputs on particular platform
>  - Split non-DT and DT initialization into two functions
>  - Fixed a copy paste error
> 
> Changes since v1:
> (http://thread.gmane.org/gmane.linux.kernel.samsung-soc/16005)
>  - Addressed comments from Mark Rutland
>  - Documented struct samsung_timer_variant
>  - Dropped inactive mail addresses from CC
> 
> Tomasz Figa (14):
>   ARM: SAMSUNG: Move samsung-time to drivers/clocksource
>   clocksource: samsung-pwm: Clean up platform header
>   clocksource: samsung-pwm: Add infrastructure to share PWM hardware
>   ARM: SAMSUNG: Unify base address definitions of timer block
>   ARM: SAMSUNG: Add new PWM platform device
>   ARM: SAMSUNG: Set PWM platform data
>   clocksource: samsung-pwm: Use platform data to setup the clocksource
>   clocksource: samsung-pwm: Synchronize register accesses
>   clocksource: samsung-pwm: Move IRQ mask/ack handling to the driver
>   ARM: SAMSUNG: Remove unused PWM timer IRQ chip code
>   clocksource: samsung-pwm: Configure dividers directly
>   clocksource: samsung-pwm: Do not use static mapping of registers
>   clocksource: samsung-pwm: Drop unnecessary includes
>   clocksource: samsung-pwm: Prepare for clocksource_of_init

On S3C6410-based Tiny6410 (Mini6410-compatible) board, both with and 
without Device Tree:

Tested-by: Tomasz Figa <tomasz.figa@gmail.com>

Best regards,
Tomasz