linux/drivers/clocksource/Kconfig

602 lines
16 KiB

clockevents: Add a clkevt-of mechanism like clksrc-of The current code uses the CLOCKSOURCE_OF_DECLARE macro to fill the clksrc table with a t-uple (name, init_function). Unfortunately it ends up to the clockevent and the clocksource being both initialized with this macro. It is not a problem by itself but there is not a clear distinction between a clockevent and a clocksource in the code initialization path. Somebody can argue there are the same IP block and the same DT node. But conceptually from the software side, there are two distincts entities and as is they should be initialized separetely. Some drivers which do not have a clocksource end up by using the CLOCKSOURCE_OF_DECLARE macro to declare a clockevent. Another result is the fuzzy organization in the clocksource directory, where the clockevents are implemented in the same file than the clocksources or file labelled timer-something implementing a clocksource. This patch provides another macro to specifically declare a clockevent in the same way than the clocksource and gives the opportunity to write two separate drivers, one for the clocksource and another for the clockevents. Hopefully, that can help to do some housework in the directory, perhaps split the drivers in to entities, for example: - clksrc-rockchip.c - clkevt-rockchip.c Also, it gives the possibility to declare clocksources separately in the DT and then use a clocksource from IP block while while clockevents are used from another IP block. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2016-04-19 08:56:27 +02:00
clockevents: Add a clkevt-of mechanism like clksrc-of The current code uses the CLOCKSOURCE_OF_DECLARE macro to fill the clksrc table with a t-uple (name, init_function). Unfortunately it ends up to the clockevent and the clocksource being both initialized with this macro. It is not a problem by itself but there is not a clear distinction between a clockevent and a clocksource in the code initialization path. Somebody can argue there are the same IP block and the same DT node. But conceptually from the software side, there are two distincts entities and as is they should be initialized separetely. Some drivers which do not have a clocksource end up by using the CLOCKSOURCE_OF_DECLARE macro to declare a clockevent. Another result is the fuzzy organization in the clocksource directory, where the clockevents are implemented in the same file than the clocksources or file labelled timer-something implementing a clocksource. This patch provides another macro to specifically declare a clockevent in the same way than the clocksource and gives the opportunity to write two separate drivers, one for the clocksource and another for the clockevents. Hopefully, that can help to do some housework in the directory, perhaps split the drivers in to entities, for example: - clksrc-rockchip.c - clkevt-rockchip.c Also, it gives the possibility to declare clocksources separately in the DT and then use a clocksource from IP block while while clockevents are used from another IP block. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2016-04-19 08:56:27 +02:00
clocksource: Increase dependencies of timer-stm32 to limit build wreckage This driver leaks out into arch/parisc builds that don't have CONFIG_GENERIC_CLOCKEVENTS, leading to the following (truncated) wreckage: CC drivers/clocksource/timer-stm32.o drivers/clocksource/timer-stm32.c:38:28: error: field 'evtdev' has incomplete type drivers/clocksource/timer-stm32.c:44:19: warning: 'enum clock_event_mode' declared inside parameter list drivers/clocksource/timer-stm32.c:44:19: warning: its scope is only this definition or declaration, which is probably not what you want drivers/clocksource/timer-stm32.c:43:62: error: parameter 1 ('mode') has incomplete type drivers/clocksource/timer-stm32.c:43:13: error: function declaration isn't a prototype drivers/clocksource/timer-stm32.c: In function 'stm32_clock_event_set_mode': drivers/clocksource/timer-stm32.c:47:3: error: type defaults to 'int' in declaration of '__mptr' drivers/clocksource/timer-stm32.c:47:3: warning: initialization from incompatible pointer type drivers/clocksource/timer-stm32.c:51:7: error: 'CLOCK_EVT_MODE_PERIODIC' undeclared (first use in this function) drivers/clocksource/timer-stm32.c:51:7: note: each undeclared identifier is reported only once for each function it appears in drivers/clocksource/timer-stm32.c:56:7: error: 'CLOCK_EVT_MODE_ONESHOT' undeclared (first use in this function) Tighten up the dependencies to limit where it gets built by copying the style of the Kconfig line for CLKSRC_EFM32 a few lines above. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Chanwoo Choi <cw00.choi@samsung.com> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Link: http://lkml.kernel.org/r/1434841352-24300-1-git-send-email-paul.gortmaker@windriver.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-06-20 19:02:32 -04:00
clocksource: Add J-Core timer/clocksource driver At the hardware level, the J-Core PIT is integrated with the interrupt controller, but it is represented as its own device and has an independent programming interface. It provides a 12-bit countdown timer, which is not presently used, and a periodic timer. The interval length for the latter is programmable via a 32-bit throttle register whose units are determined by a bus-period register. The periodic timer is used to implement both periodic and oneshot clock event modes; in oneshot mode the interrupt handler simply disables the timer as soon as it fires. Despite its device tree node representing an interrupt for the PIT, the actual irq generated is programmable, not hard-wired. The driver is responsible for programming the PIT to generate the hardware irq number that the DT assigns to it. On SMP configurations, J-Core provides cpu-local instances of the PIT; no broadcast timer is needed. This driver supports the creation of the necessary per-cpu clock_event_device instances. A nanosecond-resolution clocksource is provided using the J-Core "RTC" registers, which give a 64-bit seconds count and 32-bit nanoseconds that wrap every second. The driver converts these to a full-range 32-bit nanoseconds count. Signed-off-by: Rich Felker <dalias@libc.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Rob Herring <robh+dt@kernel.org> Link: http://lkml.kernel.org/r/b591ff12cc5ebf63d1edc98da26046f95a233814.1476393790.git.dalias@libc.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-10-13 21:51:06 +00:00
clocksource: CMT, MTU2, TMU and STI should depend on GENERIC_CLOCKEVENTS If GENERIC_CLOCKEVENTS=n: drivers/clocksource/sh_cmt.c:54:28: error: field 'ced' has incomplete type drivers/clocksource/sh_cmt.c: In function 'sh_cmt_interrupt': drivers/clocksource/sh_cmt.c:407:23: error: 'CLOCK_EVT_MODE_ONESHOT' undeclared (first use in this function) drivers/clocksource/sh_mtu2.c:44:28: error: field 'ced' has incomplete type drivers/clocksource/sh_mtu2.c: In function 'ced_to_sh_mtu2': drivers/clocksource/sh_mtu2.c:184:70: warning: initialization from incompatible pointer type [enabled by default] drivers/clocksource/sh_mtu2.c: At top level: drivers/clocksource/sh_mtu2.c:188:16: warning: 'enum clock_event_mode' declared inside parameter list [enabled by default] drivers/clocksource/sh_tmu.c:45:28: error: field 'ced' has incomplete type drivers/clocksource/sh_tmu.c: In function 'sh_tmu_interrupt': drivers/clocksource/sh_tmu.c:207:21: error: 'CLOCK_EVT_MODE_ONESHOT' undeclared (first use in this function) drivers/clocksource/em_sti.c:44:28: error: field 'ced' has incomplete type drivers/clocksource/em_sti.c: In function 'ced_to_em_sti': drivers/clocksource/em_sti.c:251:69: warning: initialization from incompatible pointer type [enabled by default] drivers/clocksource/em_sti.c: At top level: drivers/clocksource/em_sti.c:255:16: warning: 'enum clock_event_mode' declared inside parameter list [enabled by default] Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Magnus Damm <damm@opensource.se> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Link: http://lkml.kernel.org/r/1395324352-9146-1-git-send-email-geert@linux-m68k.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-03-20 15:05:50 +01:00
clocksource: CMT, MTU2, TMU and STI should depend on GENERIC_CLOCKEVENTS If GENERIC_CLOCKEVENTS=n: drivers/clocksource/sh_cmt.c:54:28: error: field 'ced' has incomplete type drivers/clocksource/sh_cmt.c: In function 'sh_cmt_interrupt': drivers/clocksource/sh_cmt.c:407:23: error: 'CLOCK_EVT_MODE_ONESHOT' undeclared (first use in this function) drivers/clocksource/sh_mtu2.c:44:28: error: field 'ced' has incomplete type drivers/clocksource/sh_mtu2.c: In function 'ced_to_sh_mtu2': drivers/clocksource/sh_mtu2.c:184:70: warning: initialization from incompatible pointer type [enabled by default] drivers/clocksource/sh_mtu2.c: At top level: drivers/clocksource/sh_mtu2.c:188:16: warning: 'enum clock_event_mode' declared inside parameter list [enabled by default] drivers/clocksource/sh_tmu.c:45:28: error: field 'ced' has incomplete type drivers/clocksource/sh_tmu.c: In function 'sh_tmu_interrupt': drivers/clocksource/sh_tmu.c:207:21: error: 'CLOCK_EVT_MODE_ONESHOT' undeclared (first use in this function) drivers/clocksource/em_sti.c:44:28: error: field 'ced' has incomplete type drivers/clocksource/em_sti.c: In function 'ced_to_em_sti': drivers/clocksource/em_sti.c:251:69: warning: initialization from incompatible pointer type [enabled by default] drivers/clocksource/em_sti.c: At top level: drivers/clocksource/em_sti.c:255:16: warning: 'enum clock_event_mode' declared inside parameter list [enabled by default] Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Magnus Damm <damm@opensource.se> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Link: http://lkml.kernel.org/r/1395324352-9146-1-git-send-email-geert@linux-m68k.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-03-20 15:05:50 +01:00
clocksource: CMT, MTU2, TMU and STI should depend on GENERIC_CLOCKEVENTS If GENERIC_CLOCKEVENTS=n: drivers/clocksource/sh_cmt.c:54:28: error: field 'ced' has incomplete type drivers/clocksource/sh_cmt.c: In function 'sh_cmt_interrupt': drivers/clocksource/sh_cmt.c:407:23: error: 'CLOCK_EVT_MODE_ONESHOT' undeclared (first use in this function) drivers/clocksource/sh_mtu2.c:44:28: error: field 'ced' has incomplete type drivers/clocksource/sh_mtu2.c: In function 'ced_to_sh_mtu2': drivers/clocksource/sh_mtu2.c:184:70: warning: initialization from incompatible pointer type [enabled by default] drivers/clocksource/sh_mtu2.c: At top level: drivers/clocksource/sh_mtu2.c:188:16: warning: 'enum clock_event_mode' declared inside parameter list [enabled by default] drivers/clocksource/sh_tmu.c:45:28: error: field 'ced' has incomplete type drivers/clocksource/sh_tmu.c: In function 'sh_tmu_interrupt': drivers/clocksource/sh_tmu.c:207:21: error: 'CLOCK_EVT_MODE_ONESHOT' undeclared (first use in this function) drivers/clocksource/em_sti.c:44:28: error: field 'ced' has incomplete type drivers/clocksource/em_sti.c: In function 'ced_to_em_sti': drivers/clocksource/em_sti.c:251:69: warning: initialization from incompatible pointer type [enabled by default] drivers/clocksource/em_sti.c: At top level: drivers/clocksource/em_sti.c:255:16: warning: 'enum clock_event_mode' declared inside parameter list [enabled by default] Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Magnus Damm <damm@opensource.se> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Link: http://lkml.kernel.org/r/1395324352-9146-1-git-send-email-geert@linux-m68k.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-03-20 15:05:50 +01:00
ARM: SoC: cleanups for 3.15 These cleanup patches are mainly move stuff around and should all be harmless. They are mainly split out so that other branches can be based on top to avoid conflicts. Notable changes are: * We finally remove all mach/timex.h, after CLOCK_TICK_RATE is no longer used. (Uwe Kleine-König) * The Qualcomm MSM platform is split out into legacy mach-msm and new-style mach-qcom, to allow easier maintainance of the new hardware support without regressions. (Kumar Gala) * A rework of some of the Kconfig logic to simplify multiplatform support (Rob Herring) * Samsung Exynos gets closer to supporting multiplatform (Sachin Kamat and others) * mach-bcm3528 gets merged into mach-bcm (Stephen Warren) * at91 gains some common clock framework support (Alexandre Belloni, Jean-Jacques Hiblot and other French people). -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIVAwUAUz/yOWCrR//JCVInAQLOPBAAwTMkMrD8S8ggz6vfiQHZNdRPAC7NUJ46 +eYKmBVi5d6EdnjNuRElWENsh0ZosSAUFHrXsIC2NdH9sAJ9HOqWNNLymuA59Jo9 HZ/Ze6xQXDPNV7TROPoXuIli/2OCOXyyQHJsfI7h9V3PCx31qo0B5OdCxU0mtXK6 r1giREhnJFwfQMF/FTdnzhalFJoSjWwv/nkpNmQDJKRLKj9GzwQqItqw68gV6RzU Gnt6YK+9xC1B0cfWTFhAm6kbr9i7mvHoMG5tE3no2uuJMn4K7TgeMqOyvPWhmUeB EZi656szT1m5VfRWOqG+7coZO2VM4GO4NI0Xfin3GHllugOYls1il/FAfCPMLiwh RvuOmQGCkLIpdkuHop5QaI/h1EzlHA59nzTjmGf1+wWPsm0CIg08XOD9izQbRnN9 EmRqn1/8POIi17xcWyeMp8LB0APsTI+IflZFaYprEY9VlLLA/Pd+7udULhs8Bq8y 1l6fB6aPZKnDKCBy/PEIR+y+EHFEbwfrx6zm/pxVDX6P5DlQMFWL78pdBoJUa2h8 3pm/bSzNU5OSz1nJMLJv2jBTtnM5BvFgQBUi2qJ9Lr+nUhJXKCJ80kE/nOlXoCIU J952p3OhkYTQQcjuUVQeTXvRUOGB7mKok0pDFZNE6c7faqxTCudMABQq/KbMFstU eE3cH5FyYj4= =GcBb -----END PGP SIGNATURE----- Merge tag 'cleanup-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC cleanups from Arnd Bergmann: "These cleanup patches are mainly move stuff around and should all be harmless. They are mainly split out so that other branches can be based on top to avoid conflicts. Notable changes are: - We finally remove all mach/timex.h, after CLOCK_TICK_RATE is no longer used (Uwe Kleine-König) - The Qualcomm MSM platform is split out into legacy mach-msm and new-style mach-qcom, to allow easier maintainance of the new hardware support without regressions (Kumar Gala) - A rework of some of the Kconfig logic to simplify multiplatform support (Rob Herring) - Samsung Exynos gets closer to supporting multiplatform (Sachin Kamat and others) - mach-bcm3528 gets merged into mach-bcm (Stephen Warren) - at91 gains some common clock framework support (Alexandre Belloni, Jean-Jacques Hiblot and other French people)" * tag 'cleanup-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (89 commits) ARM: hisi: select HAVE_ARM_SCU only for SMP ARM: efm32: allow uncompress debug output ARM: prima2: build reset code standalone ARM: at91: add PWM clock ARM: at91: move sam9261 SoC to common clk ARM: at91: prepare common clk transition for sam9261 SoC ARM: at91: updated the at91_dt_defconfig with support for the ADS7846 ARM: at91: dt: sam9261: Device Tree support for the at91sam9261ek ARM: at91: dt: defconfig: Added the sam9261 to the list of DT-enabled SOCs ARM: at91: dt: Add at91sam9261 dt SoC support ARM: at91: switch sam9rl to common clock framework ARM: at91/dt: define main clk frequency of at91sam9rlek ARM: at91/dt: define at91sam9rl clocks ARM: at91: prepare common clk transition for sam9rl SoCs ARM: at91: prepare sam9 dt boards transition to common clk ARM: at91: dt: sam9rl: Device Tree for the at91sam9rlek ARM: at91/defconfig: Add the sam9rl to the list of DT-enabled SOCs ARM: at91: Add at91sam9rl DT SoC support ARM: at91: prepare at91sam9rl DT transition ARM: at91/defconfig: refresh at91sam9260_9g20_defconfig ...
2014-04-05 13:51:19 -07:00