talos-obmc-linux/drivers/clocksource, branch dev-4.13

clocksource/drivers/npcm: Add NPCM7xx timer driver

2018-04-11T03:53:33+00:00

Add Nuvoton BMC NPCM7xx timer driver. The clocksource Enable 24-bit TIMER0 and TIMER1 counters, while TIMER0 serve as clockevent and TIMER1 serve as clocksource. OpenBMC-Staging-Count: 1 Signed-off-by: Tomer Maimon Reviewed-by: Brendan Higgins Signed-off-by: Daniel Lezcano Signed-off-by: Joel Stanley

clockevents/drivers/cs5535: Improve resilience to spurious interrupts

2017-10-27T08:39:14+00:00

commit eb39a7c0355393c5a8d930f342ad7a6231b552c4 upstream. The interrupt handler mfgpt_tick() is not robust versus spurious interrupts which happen before the clock event device is registered and fully initialized. The reason is that the safe guard against spurious interrupts solely checks for the clockevents shutdown state, but lacks a check for detached state. If the interrupt hits while the device is in detached state it passes the safe guard and dereferences the event handler call back which is NULL. Add the missing state check. Fixes: 8f9327cbb6e8 ("clockevents/drivers/cs5535: Migrate to new 'set-state' interface") Suggested-by: Thomas Gleixner Signed-off-by: David Kozub Signed-off-by: Thomas Gleixner Cc: Daniel Lezcano Link: https://lkml.kernel.org/r/20171020093103.3317F6004D@linux.fjfi.cvut.cz Signed-off-by: Greg Kroah-Hartman

clocksource/drivers/Kconfig: Fix CLKSRC_PISTACHIO dependencies

2017-08-11T10:53:29+00:00

In v4.13, CLKSRC_PISTACHIO can select TIMER_OF on architectures without GENERIC_CLOCKEVENTS, resulting in a struct clock_event_device missing some required features and build breakage compiling timer_of.c. One of the symbols selecting TIMER_OF is CLKSRC_PISTACHIO, so add the dependency on GENERIC_CLOCKEVENTS. Thanks to kbuild test robot for finding this error (https://lkml.org/lkml/2017/7/16/249) Signed-off-by: Matt Redfearn Suggested-by: Ian Abbott Signed-off-by: Daniel Lezcano

clocksource/drivers/timer-of: Checking for IS_ERR() instead of NULL

2017-08-11T10:53:21+00:00

The current code checks the return value of the of_io_request_and_map() function as it was returning a NULL pointer in case of error. However, it returns an error code encoded in the pointer return value, not a NULL value. Fix this by checking the returned pointer against IS_ERR() and return the error with PTR_ERR(). Signed-off-by: Dan Carpenter Signed-off-by: Daniel Lezcano

clocksource/drivers/em_sti: Fix error return codes in em_sti_probe()

2017-08-10T12:48:18+00:00

Propagate the return values of platform_get_irq and devm_request_irq on failure. Cc: Frans Klaver Signed-off-by: Gustavo A. R. Silva Signed-off-by: Daniel Lezcano

clocksource/drivers/arm_arch_timer: Fix mem frame loop initialization

2017-08-10T12:48:17+00:00

The loop to find the best memory frame in arch_timer_mem_acpi_init() initializes the loop counter with itself ('i = i'), which is suspicious in the first place and pointed out by clang. The loop condition is 'i < timer_count' and a prior for loop exits when 'i' reaches 'timer_count', therefore the second loop is never executed. Initialize the loop counter with 0 to iterate over all timers, which supposedly was the intention before the typo monster attacked. Fixes: c2743a36765d3 ("clocksource: arm_arch_timer: add GTDT support for memory-mapped timer") Signed-off-by: Matthias Kaehlcke Reported-by: Ard Biesheuvel Acked-by: Mark Rutland Signed-off-by: Daniel Lezcano

clocksource/drivers/timer-of: Handle of_irq_get_byname() result correctly

2017-07-17T20:43:00+00:00

of_irq_get_byname() may return a negative error number as well as 0 on failure, while timer_irq_init() only checks for 0, blithely continuing with the call to request_[percpu_]irq() -- those functions expect *unsigned int*, so would probably fail anyway when a large IRQ number resulting from a conversion of a negative error number is passed to them... This, however, is incorrect behavior -- error number is not IRQ number. Filter out the negative error numbers, complain, and return them to the timer_irq_init()'s callers... Fixes: dc11bae78529 ("clocksource/drivers: Add timer-of common init routine") Signed-off-by: Sergei Shtylyov Signed-off-by: Thomas Gleixner Cc: Daniel Lezcano Link: http://lkml.kernel.org/r/20170717180114.678825147@cogentembedded.com

Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2017-07-04T21:47:47+00:00

Pull ARM SoC driver updates from Arnd Bergmann: "New SoC specific drivers: - NVIDIA Tegra PM Domain support for newer SoCs (Tegra186 and later) based on the "BPMP" firmware - Clocksource and system controller drivers for the newly added Action Semi platforms (both arm and arm64). Reset subsystem, merged through arm-soc by tradition: - New drivers for Altera Stratix10, TI Keystone and Cortina Gemini SoCs - Various subsystem-wide cleanups Updates for existing SoC-specific drivers - TI GPMC (General Purpose Memory Controller) - Mediatek "scpsys" system controller support for MT6797 - Broadcom "brcmstb_gisb" bus arbitrer - ARM SCPI firmware - Renesas "SYSC" system controller One more driver update was submitted for the Freescale/NXP DPAA data path acceleration that has previously been used on PowerPC chips. I ended up postponing the merge until some API questions for its unusual MMIO access are resolved" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (35 commits) clocksource: owl: Add S900 support clocksource: Add Owl timer soc: renesas: rcar-sysc: Use GENPD_FLAG_ALWAYS_ON firmware: tegra: Fix locking bugs in BPMP soc/tegra: flowctrl: Fix error handling soc/tegra: bpmp: Implement generic PM domains soc/tegra: bpmp: Update ABI header PM / Domains: Allow overriding the ->xlate() callback soc: brcmstb: enable drivers for ARM64 and BMIPS soc: renesas: Rework Kconfig and Makefile logic reset: Add the TI SCI reset driver dt-bindings: reset: Add TI SCI reset binding reset: use kref for reference counting soc: qcom: smsm: Improve error handling, quiesce probe deferral cpufreq: scpi: use new scpi_ops functions to remove duplicate code firmware: arm_scpi: add support to populate OPPs and get transition latency dt-bindings: reset: Add reset manager offsets for Stratix10 memory: omap-gpmc: add error message if bank-width property is absent memory: omap-gpmc: make dts snippet include semicolon reset: Add a Gemini reset controller ...

clocksource/drivers/mips-gic-timer: Fix an error code in 'gic_clocksource_of_init()'

2017-06-27T09:25:40+00:00

'clk' is a valid pointer at this point. So calling PTR_ERR on it is pointess. Return the error code from 'clk_prepare_enable()' if it fails instead. Signed-off-by: Christophe JAILLET Signed-off-by: Daniel Lezcano

clocksource/drivers/fsl_ftm_timer: Unmap region obtained by of_iomap

2017-06-27T09:25:39+00:00

In case of error at init time, rollback iomapping. Signed-off-by: Arvind Yadav Signed-off-by: Daniel Lezcano