linux/drivers/clocksource/timer-microchip-pit64b.c, branch v5.6Mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
https://git.shady.money/linux/atom?h=v5.62020-01-16T18:09:02Zclocksource/drivers/timer-microchip-pit64b: Fix sparse warning2020-01-16T18:09:02ZClaudiu Bezneaclaudiu.beznea@microchip.com2020-01-06T09:58:08Zurn:sha1:b9c60a741f06eda56d12c7216accb317b74266b4
Fix sparse warning:
"warning: Using plain integer as NULL pointer"
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/1578304688-14882-1-git-send-email-claudiu.beznea@microchip.com
clocksource/drivers/timer-microchip-pit64b: Add Microchip PIT64B support2020-01-16T18:06:57ZClaudiu Bezneaclaudiu.beznea@microchip.com2019-12-13T11:19:21Zurn:sha1:625022a5f160619ae180d54097ddd65bb3795913
Add driver for Microchip PIT64B timer. Timer could be used in continuous
mode or oneshot mode. The hardware has 2x32 bit registers for period
emulating a 64 bit timer. The LSB_PR and MSB_PR registers are used to
set the period value (compare value). TLSB and TMSB keeps the current
value of the counter. After a compare the TLSB and TMSB register resets.
The driver uses PIT64B timer for clocksource or clockevent. First
requested timer would be registered as clockevent, second one would be
registered as clocksource. Individual PIT64B hardware resources were
used for clocksource and clockevent to be able to support high resolution
timers with this hardware implementation.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/1576235962-30123-3-git-send-email-claudiu.beznea@microchip.com