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Message-Id: <1352408516-21988-1-git-send-email-swarren@wwwdotorg.org> Date: Thu, 8 Nov 2012 14:01:44 -0700 From: Stephen Warren <swarren@...dotorg.org> To: Russell King <linux@....linux.org.uk>, Olof Johansson <olof@...om.net>, Arnd Bergmann <arnd@...db.de>, John Stultz <johnstul@...ibm.com>, Thomas Gleixner <tglx@...utronix.de> Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org, Stephen Warren <swarren@...dia.com> Subject: [RFC PATCH 00/11] arch_gettimeoffset and ARM timer rework From: Stephen Warren <swarren@...dia.com> The overall aim of this series is to allow ARM (or indeed any) timer drivers to be moved into drivers/clocksource without requiring a struct or function prototype for each individual driver in include/linux. The intent is eventually to create a single e.g. of_clocksource_init() function that determines which timer driver to initialize by scanning the device dtree, much like the proposed irqchip_init() at: http://www.spinics.net/lists/arm-kernel/msg203686.html This requires some rework prior to implementing of_clocksource_init(): ARM uses struct sys_timer to represent the individual machine's timer driver. Many of the patches in this series are ARM-specific changes to get rid of this struct, leaving just a single init function instead. One function pointer in the struct provides the implementation of arch_gettimeoffset(). Removing the struct and moving drivers into the generic drivers/clocksource directory requires an arch-agnostic way of registering the implementation of this function. The first few patches in the series provide that, and rework various architectures to make use of this facility rather than implementing the same thing themselves. It would probably be easiest to merge this whole series through the arm-soc tree. Anything else would require some co-ordination. Stephen Warren (11): cris: move usec/nsec conversion to do_slow_gettimeoffset time: convert arch_gettimeoffset to a pointer m68k: set arch_gettimeoffset directly ARM: set arch_gettimeoffset directly ARM: at91: convert timer suspend/resume to clock_event_device ARM: pxa: convert timer suspend/resume to clock_event_device ARM: sa1100: convert timer suspend/resume to clock_event_device ARM: ux500: convert timer suspend/resume to clock_event_device ARM: samsung: register syscore_ops for timer resume directly ARM: remove struct sys_timer suspend and resume fields ARM: delete struct sys_timer arch/arm/include/asm/mach/arch.h | 3 +- arch/arm/include/asm/mach/time.h | 30 ------------ arch/arm/kernel/time.c | 53 +---------------------- arch/arm/mach-at91/at91sam926x_time.c | 47 +++++++++++--------- arch/arm/mach-at91/at91x40_time.c | 8 ++- arch/arm/mach-ebsa110/core.c | 7 ++- arch/arm/mach-ep93xx/core.c | 23 +++++----- arch/arm/mach-h720x/common.c | 6 +- arch/arm/mach-h720x/common.h | 2 +- arch/arm/mach-h720x/cpu-h7201.c | 3 +- arch/arm/mach-h720x/cpu-h7202.c | 3 +- arch/arm/mach-pxa/time.c | 76 ++++++++++++++++---------------- arch/arm/mach-rpc/time.c | 6 +- arch/arm/mach-sa1100/time.c | 66 ++++++++++++++-------------- arch/arm/mach-tegra/board-dt-tegra20.c | 2 +- arch/arm/mach-tegra/board-dt-tegra30.c | 2 +- arch/arm/mach-tegra/board.h | 2 +- arch/arm/mach-tegra/timer.c | 6 +-- arch/arm/mach-ux500/timer.c | 7 --- arch/arm/plat-samsung/time.c | 14 ++++-- arch/blackfin/kernel/time.c | 6 ++- arch/cris/arch-v10/kernel/time.c | 10 +++-- arch/cris/kernel/time.c | 11 ----- arch/m32r/kernel/time.c | 4 +- arch/m68k/amiga/config.c | 10 ++-- arch/m68k/apollo/config.c | 9 ++-- arch/m68k/atari/config.c | 4 +- arch/m68k/atari/time.c | 6 +- arch/m68k/bvme6000/config.c | 10 ++-- arch/m68k/hp300/config.c | 2 +- arch/m68k/hp300/time.c | 4 +- arch/m68k/hp300/time.h | 2 +- arch/m68k/include/asm/machdep.h | 2 +- arch/m68k/kernel/setup_mm.c | 1 - arch/m68k/kernel/time.c | 15 ++---- arch/m68k/mac/config.c | 4 +- arch/m68k/mac/via.c | 4 +- arch/m68k/mvme147/config.c | 8 ++-- arch/m68k/mvme16x/config.c | 8 ++-- arch/m68k/q40/config.c | 8 ++-- arch/m68k/sun3/config.c | 4 +- arch/m68k/sun3/intersil.c | 4 +- arch/m68k/sun3x/config.c | 2 +- arch/m68k/sun3x/time.c | 2 +- arch/m68k/sun3x/time.h | 2 +- drivers/clocksource/nomadik-mtu.c | 33 ++++++++----- include/linux/time.h | 4 +- kernel/time/timekeeping.c | 20 +++++++- 48 files changed, 249 insertions(+), 316 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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