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OMAP: omap_device: track latency in nanoseconds

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Rather than having to do a usecs = nsecs / NSECS_PER_USEC to
track latency in usecs, just track it in nanoseconds.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This commit is contained in:
Kevin Hilman 2009-12-08 16:34:26 -07:00 committed by paul
parent d048ec7ab4
commit 0d93d8bb7f
2 changed files with 6 additions and 6 deletions
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4
arch/arm/plat-omap/include/plat/omap_device.h
View File

@ -50,8 +50,8 @@
* @pm_lats: ptr to an omap_device_pm_latency table
* @pm_lats_cnt: ARRAY_SIZE() of what is passed to @pm_lats
* @pm_lat_level: array index of the last odpl entry executed - -1 if never
* @dev_wakeup_lat: dev wakeup latency in microseconds
* @_dev_wakeup_lat_limit: dev wakeup latency limit in usec - set by OMAP PM
* @dev_wakeup_lat: dev wakeup latency in nanoseconds
* @_dev_wakeup_lat_limit: dev wakeup latency limit in nsec - set by OMAP PM
* @_state: one of OMAP_DEVICE_STATE_* (see above)
* @flags: device flags
*

8
arch/arm/plat-omap/omap_device.c
View File

@ -142,10 +142,10 @@ static int _omap_device_activate(struct omap_device *od, u8 ignore_lat)
read_persistent_clock(&b);
c = timespec_sub(b, a);
act_lat = timespec_to_ns(&c) / NSEC_PER_USEC;
act_lat = timespec_to_ns(&c);
pr_debug("omap_device: %s: pm_lat %d: activate: elapsed time "
"%llu usec\n", od->pdev.name, od->pm_lat_level,
"%llu nsec\n", od->pdev.name, od->pm_lat_level,
act_lat);
WARN(act_lat > odpl->activate_lat, "omap_device: %s.%d: "
@ -198,10 +198,10 @@ static int _omap_device_deactivate(struct omap_device *od, u8 ignore_lat)
read_persistent_clock(&b);
c = timespec_sub(b, a);
deact_lat = timespec_to_ns(&c) / NSEC_PER_USEC;
deact_lat = timespec_to_ns(&c);
pr_debug("omap_device: %s: pm_lat %d: deactivate: elapsed time "
"%llu usec\n", od->pdev.name, od->pm_lat_level,
"%llu nsec\n", od->pdev.name, od->pm_lat_level,
deact_lat);
WARN(deact_lat > odpl->deactivate_lat, "omap_device: %s.%d: "