user/sven/linux.git/drivers/clocksource/vf_pit_timer.c, branch v4.9.5

clocksources: Switch back to the clksrc table

2016-06-28T08:19:35Z

All the clocksource drivers's init function are now converted to return an error code. CLOCKSOURCE_OF_DECLARE is no longer used as well as the clksrc-of table. Let's convert back the names: - CLOCKSOURCE_OF_DECLARE_RET => CLOCKSOURCE_OF_DECLARE - clksrc-of-ret => clksrc-of Signed-off-by: Daniel Lezcano For exynos_mct and samsung_pwm_timer: Acked-by: Krzysztof Kozlowski For arch/arc: Acked-by: Vineet Gupta For mediatek driver: Acked-by: Matthias Brugger For the Rockchip-part Acked-by: Heiko Stuebner For STi : Acked-by: Patrice Chotard For the mps2-timer.c and versatile.c changes: Acked-by: Liviu Dudau For the OXNAS part : Acked-by: Neil Armstrong For LPC32xx driver: Acked-by: Sylvain Lemieux For Broadcom Kona timer change: Acked-by: Ray Jui For Sun4i and Sun5i: Acked-by: Chen-Yu Tsai For Meson6: Acked-by: Carlo Caione For Keystone: Acked-by: Santosh Shilimkar For NPS: Acked-by: Noam Camus For bcm2835: Acked-by: Eric Anholt

clocksource/drivers/vf_pit_timer: Convert init function to return error

2016-06-28T08:19:32Z

The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano

clocksource/drivers/vf_pit_timer: Prevent ftrace recursion

2015-10-27T00:33:58Z

Having a traceable function in the sched_clock() path leads to a recursion within ftrace and a kernel crash. We should not trace the pit_read_sched_clock() function. Fix this by adding a notrace attribute to this function. Signed-off-by: Jisheng Zhang Signed-off-by: Daniel Lezcano

clockevents/drivers/vf_pit: Migrate to new 'set-state' interface

2015-08-10T09:40:50Z

Migrate vf_pit driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Jingchang Lu Cc: Stefan Agner Cc: Shawn Guo Signed-off-by: Viresh Kumar Signed-off-by: Daniel Lezcano Acked-by: Stefan Agner

clocksource: vf_pit_timer: Support shutdown mode

2014-09-28T23:50:05Z

In order to avoid waking up the system in a low power mode, the clocksource should not generate interrupts anymore. Disable the PIT timer interrupt when changing into the CLOCK_EVT_MODE_SHUTDOWN mode. [dlezcano] : remove superfluous empty line Signed-off-by: Stefan Agner Signed-off-by: Daniel Lezcano Acked-by: Bill Pringlemeir

clocksource: vf_pit_timer: use complement for sched_clock reading

2014-03-06T10:34:14Z

Vybrids PIT register is monitonic decreasing. However, sched_clock reading needs to be monitonic increasing. Use bitwise not to get the complement of the clock register. This fixes the clock going backward. Also, the clock now starts at 0 since we load the register with the maximum value at start. Signed-off-by: Stefan Agner Acked-by: Shawn Guo Cc: daniel.lezcano@linaro.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux@arm.linux.org.uk Link: http://lkml.kernel.org/r/d25af915993aec1b486be653eb86f748ddef54fe.1394057313.git.stefan@agner.ch Cc: stable@vger.kernel.org Signed-off-by: Thomas Gleixner

clocksource: vf_pit_timer: Switch to sched_clock_register()

2013-07-30T18:24:56Z

The 32 bit sched_clock interface now supports 64 bits. Upgrade to the 64 bit function to allow us to remove the 32 bit registration interface. Cc: Jingchang Lu Cc: Fabio Estevam Signed-off-by: Stephen Boyd Signed-off-by: John Stultz

clocksource: vf_pit_timer: Use linux/sched_clock.h

2013-06-24T23:41:48Z

Commit 38ff87f7 (sched_clock: Make ARM's sched_clock generic for all architectures) changed the header to , so adapt it in order to fix the following build error: drivers/clocksource/vf_pit_timer.c:15:29: fatal error: asm/sched_clock.h: No such file or directory Signed-off-by: Fabio Estevam Cc: shawn.guo@linaro.org Cc: sboyd@codeaurora.org Cc: john.stultz@linaro.org Link: http://lkml.kernel.org/r/1372116008-2323-1-git-send-email-festevam@gmail.com Signed-off-by: Thomas Gleixner

clocksource: Add Freescale Vybrid pit timer support

2013-06-06T15:23:13Z

Add Freescale Vybrid Family period interrupt timer support. Signed-off-by: Jingchang Lu Reviewed-by: Daniel Lezcano Acked-by: Shawn Guo Signed-off-by: Daniel Lezcano