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* clocksource/drivers/h8300_timer8: Separate the Kconfig option from the archDaniel Lezcano2015-12-153-1/+5
| | | | | | | | The current Kconfig option is the H8300 arch option. In order to comply to the current rule, let's create a specific option for the timer8 and select it from the arch's Kconfig. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/timer_sun5i: Replace code by clocksource_mmio_initDaniel Lezcano2015-12-151-14/+2
| | | | | | | | | | | | The current code to initialize, register and read the clocksource is already factored out in mmio.c via the clocksource_mmio_init function. The only difference is the readl vs readl_relaxed. Factor out the code with the clocksource_mmio_init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
* clocksource/drivers/h8300_timer16: Remove pointless lockDaniel Lezcano2015-12-151-5/+1
| | | | | | The lock in the timer16_clocksource_read is not needed, remove it. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/h8300_timer16: Fix irq return value checkDaniel Lezcano2015-12-151-1/+1
| | | | | | | | The function irq_of_parse_and_map returns zero in case of failure. Fix the return code test to check against zero. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/h8300_timer16: Remove unused fields in timer16_privDaniel Lezcano2015-12-151-2/+0
| | | | | | The fields are not used in the code, remove them. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/h8300_timer16: Remove unused macrosDaniel Lezcano2015-12-151-18/+0
| | | | | | The macros are no longer used in the code, remove them. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/h8300_timer16: Remove pointless headersDaniel Lezcano2015-12-151-10/+0
| | | | | | The headers are not needed, remove them. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/h8300_timer8: Retrieve the clock rate at init timeDaniel Lezcano2015-12-151-12/+14
| | | | | | | | | | The current code retrieves the rate value when the timer is enabled which occurs each time a timer is re-armed. Except if the clock frequency has changed magically I don't see why this should be done each time. Retrieve the clock rate value at init time only. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/h8300_timer8: Remove irq and lock legacy codeDaniel Lezcano2015-12-151-16/+0
| | | | | | | | | The time framawork takes care of disabling the interrupts and takes a lock to prevent races. Remove the legacy code in the driver taking care of the races. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/h8300_timer8: Remove pointless irq re-entrant safe codeDaniel Lezcano2015-12-151-9/+6
| | | | | | | | | | | The current code assumes the interrupt function is re-entrant. That is not correct. An interrupt handler is never invoked concurrently. The interrupt line is masked on all processors. Remove the chewing flags in the code. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/h8300_timer8: Fix irq return value checkDaniel Lezcano2015-12-151-1/+1
| | | | | | | The value returned in case of error for the 'irq_of_parse_and_map' function is zero in case of error. Fix the check in the init code. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/h8300_timer8: Remove PERIODIC and ONESHOT macroDaniel Lezcano2015-12-151-7/+4
| | | | | | | Specify the delta as parameter for the timer8_clock_event_start function instead of using a macro to tell PERIODIC or ONESHOT. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/h8300_timer8: Remove unused macrosDaniel Lezcano2015-12-151-4/+0
| | | | Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/h8300_timer8: Remove unused headersDaniel Lezcano2015-12-151-5/+0
| | | | Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/h8300_tpu: Remove pointless headers for TPUDaniel Lezcano2015-12-151-5/+0
| | | | Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/h8300_tpu: Remove unused macrosDaniel Lezcano2015-12-151-10/+3
| | | | | | Some macros are unused, delete them. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/h8300_timer8: Fix compilation error with dev_warnDaniel Lezcano2015-12-151-1/+1
| | | | | | | | | The dev_warn is using the platform driver which was removed in the previous patch. Let's replace dev_warn by pr_warn. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/h8300: Cleanup startup and remove module code.Yoshinori Sato2015-12-153-264/+144
| | | | | | | | | Remove some legacy code and replace it by the clksrc-of code. Do some cleanup and code consolidation. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/dw_apb_timer_of: Implement ARM delay timerJisheng Zhang2015-12-151-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | Implement an ARM delay timer to be used for udelay(). This allows us to skip the delay loop calibration at boot on Marvell BG2, BG2Q, BG2CD platforms. And after this patch, udelay() will be unaffected by CPU frequency changes. Note: Although in case there are several possible delay timers, we may not select the "best" delay timer. Take one Marvell Berlin platform for example: we have arch timer and dw-apb timer. The arch timer freq is 25MHZ while the dw-apb timer freq is 100MHZ, current selection would choose the dw-apb timer. But the dw apb timer is on the APB bus while arch timer sits in CPU, the cost of accessing the apb timer is higher than the arch timer. We could introduce "rating" concept to delay timer, but this approach "brings a lot of complexity and workarounds in the code for a small benefit" as pointed out by Daniel. Later, Arnd pointed out "However, we could argue that this actually doesn't matter at all, because the entire point of the ndelay()/ udelay()/mdelay() functions is to waste CPU cycles doing not much at all, so we can just as well waste them reading the timer register than spinning on the CPU reading the arch timer more often.", so we just simply register the dw apb base delay timer. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/Kconfig: Add missing GENERIC_CLOCKEVENTS dependencyDaniel Lezcano2015-12-151-0/+11
| | | | | | | | In order to compile on all arch without error with 'allyesconfig' make sure the platform selected the GENERIC_CLOCKEVENTS. Without this patch the new added drivers will prevent the kernel to compile on PARISC. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/fsl-ftm: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+1
| | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/samsung-pwm: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+1
| | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/exynos_mct: Fix Kconfig and add COMPILE_TEST optionDaniel Lezcano2015-12-152-2/+3
| | | | | | | | | | | | | Let the platform's Kconfig to select the clock instead of having a reverse dependency from the driver to the platform options. Add the COMPILE_TEST option for the compilation test coverage. Due to the non portable 'delay' code, this driver is only compilable on ARM. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
* clocksource/drivers/prcmu: Fix Kconfig and add COMPILE_TEST optionDaniel Lezcano2015-12-152-3/+2
| | | | | | | | | | | | | | Let the platform's Kconfig to select the clock instead of having a reverse dependency from the driver to the platform options. Add the COMPILE_TEST option for the compilation test coverage. This change is debatable as the option itself in the Kconfig allows to select the driver for the platform or not. This change will make the prcmu timer always selected. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
* clocksource/drivers/nomadik_mtu: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-2/+2
| | | | | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Due to the non portable code for the delay timer, this option is only available for the ARM architecture. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/lpc32xx: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+3
| | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/asm9260: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+3
| | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/cadence_ttc: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+4
| | | | | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. The driver depends on the common clock framework, thus the dependency added on COMMON_CLK. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/vt8500: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+3
| | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/vt8500: Remove unneeded headerDaniel Lezcano2015-12-151-1/+0
| | | | | | Remove the <asm/time.h> header inclusion which is pointless. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/tegra2: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+4
| | | | | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Due to the non portable code for the delay timer, this option is only available for the ARM architecture. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/sun5i: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+4
| | | | | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. The driver depends on the common clock framework, thus the dependency added on COMMON_CLK. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/sun4i: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+3
| | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/dw_apb: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+3
| | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/digicolor: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+3
| | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/orion: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+4
| | | | | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. The driver is using the atomic_io API which is not portable, so the compilation is restricted to ARM only. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/meson6: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+3
| | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/armada-370-xp: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+4
| | | | | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Due to the non portable 'delay' code, the compilation is restricted to the ARM architecture only. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/rockchip: Add COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+4
| | | | | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Due to the dsb() usage in the driver, this driver is only compilable on ARM and ARM64. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/mediatek: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+3
| | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/pistachio: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+3
| | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/tango: Add COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+4
| | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/pxa_timer: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+3
| | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/pxa_timer: Move the Kconfig ruleDaniel Lezcano2015-12-152-2/+4
| | | | | | | | | | Instead of having the clocksource's Kconfig depending on the arch, let the arch to select the timer it needs. The CLKSRC_OF dependency is removed because already selected by the ARCH_PXA, and it is added for SA1100. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/st_lpc: Add the COMPILE_TEST optionDaniel Lezcano2015-12-151-1/+1
| | | | | | Increase the compilation test coverage by adding the COMPILE_TEST option. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/st_lpc: Fix Kconfig dependencyDaniel Lezcano2015-12-152-1/+1
| | | | | | | | Change the Kconfig selection rule by letting the STI arch to select the timer. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
* clocksource/drivers/qcom: Make COMPILE_TEST enabled for ARM architectureDaniel Lezcano2015-12-151-1/+6
| | | | | | | | | In order to be consistent with the rest of the drivers compilation, let's introduce the COMPILE_TEST option. Unfortunately, the delay.h code is not portable, so the compilation test coverage will be restricted to the ARM architecture. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/rockchip: Remove dsb() usageCaesar Wang2015-12-151-4/+0
| | | | | | | | | | | The dsb() instruction is pointless in this code. Remove it. That also fixes the ARM64 compilation issue. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Tested-by: Caesar Wang <wxt@rock-chips.com>
* time: Define dummy functions for the generic sched clockDaniel Lezcano2015-12-151-3/+9
| | | | | | | | | | | | | | | | When we try to compile a clocksource driver with the COMPILE_TEST option, we can't select the GENERIC_SCHED_CLOCK because the sched_clock() symbol will be duplicated with the one defined for the x86. In order to fix that, we don't select the GENERIC_SCHED_CLOCK in the driver Kconfig's file but we define some empty functions for the different symbols in order to prevent the unresolved ones. This patch fixes the COMPILE_TEST option for the compile test coverage for the clocksource drivers. Without this patch, we can't add the COMPILE_TEST option for the clocksource drivers using the GENERIC_SCHED_CLOCK. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource/drivers/rockchip: Make the driver more readableCaesar Wang2015-12-151-9/+10
| | | | | | | Let's checkstyle to clean up the macros with such trivial details. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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