[PATCH v4 00/14] ARM: samsung-time: Prepare for multiplatform support
Tomasz Figa
tomasz.figa at gmail.com
Fri Apr 5 18:57:04 EDT 2013
On Thursday 04 of April 2013 18:36:57 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.
>
> 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 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-time: Drop useless defines from public header
> clocksource: samsung-time: Use local register definitions
> mfd: Add Samsung PWM/timer master driver
> ARM: SAMSUNG: Unify base address definitions of timer block
> ARM: SAMSUNG: Add new PWM platform device
> ARM: SAMSUNG: Set PWM platform data
> clocksource: samsung-time: Use Samsung PWM/timer master driver
> clocksource: samsung-time: Use variant data to get SoC-specific bits
> clocksource: samsung-time: Use master driver to configure dividers
> clocksource: samsung-time: Use clk_prepare_enable
> clocksource: samsung-time: Use master driver to control PWM channels
> clocksource: samsung-time: Move IRQ mask/ack handling to the driver
> ARM: SAMSUNG: Remove unused PWM timer IRQ chip code
On FriendlyARM's Tiny6410 board (Mini6410-compatible), both with (using my
patches adding S3C64xx Device Tree and pinctrl support) and without Device
Tree:
Tested-by: Tomasz Figa <tomasz.figa at gmail.com>
Best regards,
Tomasz
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