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mfd: dbx500: Provide a more accurate smp_twd clock

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The local timer clock is based on ARM subsystem clock. This patch
obtains a more exact value of that clock by reading PRCMU registers.
Using this increases the accuracy of the local timer events.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rickard Andersson <rickard.andersson@stericsson.com>
Signed-off-by: Michel Jaouen <michel.jaouen@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Michel Jaouen 2012-08-31 14:21:30 +02:00 • committed by Samuel Ortiz
commit 804971ec37
3 changed files with 45 additions and 1 deletions
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include/linux/mfd/dbx500-prcmu.h
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@ -136,6 +136,7 @@ enum prcmu_clock {
PRCMU_TIMCLK,
PRCMU_PLLSOC0,
PRCMU_PLLSOC1,
PRCMU_ARMSS,
PRCMU_PLLDDR,
PRCMU_PLLDSI,
PRCMU_DSI0CLK,