kernel/git/stable/linux.git/arch/arm/plat-nomadik/timer.c, branch master

ARM: plat-nomadik: move MTU, kill plat-nomadik

2012-11-05T08:55:33+00:00

This moves the MTU timer driver from arch/arm/plat-nomadik to drivers/clocksource and moves the header file to the platform_data directory. As this moves the last file being compiled to an object out of arch/arm/plat-nomadik, we have to "turn off the light" and delete the plat-nomadik directory, because it is not allowed to have an empty Makefile in a plat-* directory. This is probably also a desired side effect of depopulating the arch/arm directory of drivers. Luckily we have just deleted all the include files prior to this so by moving the last one we may delete the directory. After this all the Ux500 and Nomadik device drivers live outside of the arch/arm hierarchy. Cc: Alessandro Rubini Acked-by: Arnd Bergmann Signed-off-by: Linus Walleij

ARM: plat-nomadik: use DIV_ROUND_CLOSEST()

2012-11-05T08:55:32+00:00

Use DIV_ROUND_CLOSEST() to calculate the cycle counter for the periodic mode instead of relying on homebrew reimplementation. Cc: Alessandro Rubini Acked-by: Arnd Bergmann Signed-off-by: Linus Walleij

ARM: plat-nomadik: pass IRQ to timer driver

2012-11-05T08:55:31+00:00

In order to convert the MTU timer to work with sparse IRQ we need to pass the IRQ used when initializing instead of just letting it rely on a special name being used in the IRQ header file. Cc: Alessandro Rubini Acked-by: Arnd Bergmann Signed-off-by: Linus Walleij

ARM: plat-nomadik: modernize MTU timer

2012-01-30T23:18:26+00:00

Modernize the MTU timer to rely on the clockevents core to calculate mult and shift and setup the clock event. Acked-by: Alessandro Rubini Signed-off-by: Linus Walleij

ARM: plat-nomadik: handle clocking properly

2012-01-30T23:05:28+00:00

clk_prepare() was missing from the Nomadik MTU driver, also handle errors on prepare and enable in the simplest way possible, by bugging out - we cannot start the system without time anyway. Acked-by: Alessandro Rubini Signed-off-by: Linus Walleij

ARM: plat-nomadik: get rid of global mtu base pointer

2012-01-30T23:05:24+00:00

Pass the base offset to the Nomadik MTU timer in the init call instead of keeping a global pointer to be assigned. Acked-by: Alessandro Rubini Signed-off-by: Linus Walleij

ARM: 7205/2: sched_clock: allow sched_clock to be selected at runtime

2011-12-18T23:00:26+00:00

sched_clock() is yet another blocker on the road to the single image. This patch implements an idea by Russell King: http://www.spinics.net/lists/linux-omap/msg49561.html Instead of asking the platform to implement both sched_clock() itself and the rollover callback, simply register a read() function, and let the ARM code care about sched_clock() itself, the conversion to ns and the rollover. sched_clock() uses this read() function as an indirection to the platform code. If the platform doesn't provide a read(), the code falls back to the jiffy counter (just like the default sched_clock). This allow some simplifications and possibly some footprint gain when multiple platforms are compiled in. Among the drawbacks, the removal of the *_fixed_sched_clock optimization which could negatively impact some platforms (sa1100, tegra, versatile and omap). Tested on 11MPCore, OMAP4 and Tegra. Cc: Imre Kaloz Cc: Eric Miao Cc: Colin Cross Cc: Erik Gilling Cc: Olof Johansson Cc: Sascha Hauer Cc: Alessandro Rubini Cc: STEricsson Cc: Lennert Buytenhek Cc: Ben Dooks Tested-by: Jamie Iles Tested-by: Tony Lindgren Tested-by: Kyungmin Park Acked-by: Linus Walleij Acked-by: Nicolas Pitre Acked-by: Krzysztof Halasa Acked-by: Kukjin Kim Signed-off-by: Marc Zyngier Signed-off-by: Russell King

ARM: plat-nomadik: timer: Export reset functions

2011-09-22T13:44:17+00:00

We make the reset function from the driver public, then we also move of all register defines from the public header file into driver, where they belong. Cc: Thomas Gleixner Signed-off-by: Jonas Aaberg Signed-off-by: Linus Walleij

ARM: plat-nomadik: timer: Add support for periodic timers

2011-09-22T13:44:10+00:00

This adds support for a periodic mode in the MTU (Nomadik) timer clockevent driver. It also include changes needed for deeper powerstates where MTU block gets powered off. Cc: Thomas Gleixner Signed-off-by: Jonas Aaberg Signed-off-by: Linus Walleij

ARM: plat-nomadik: MTU sched_clock as an option

2011-09-22T13:42:33+00:00

This patch makes it possible to configure away the sched_clock part of the MTU timer. Cc: Thomas Gleixner Signed-off-by: Mattias Wallin Signed-off-by: Jonas Aberg Signed-off-by: Linus Walleij