diff options
| author | Kevin Hilman <khilman@deeprootsystems.com> | 2009-12-09 00:34:26 +0100 |
|---|---|---|
| committer | paul <paul@twilight.(none)> | 2009-12-12 01:00:44 +0100 |
| commit | 0d93d8bb7f52190d76e9dba7f4561aabefaff34a (patch) | |
| tree | 93aa385996af88300fe873c384364f2f876b5544 /arch/arm/plat-omap | |
| parent | OMAP: omap_device: fix nsec/usec conversion in latency calculations (diff) | |
| download | linux-0d93d8bb7f52190d76e9dba7f4561aabefaff34a.tar.xz linux-0d93d8bb7f52190d76e9dba7f4561aabefaff34a.zip | |
OMAP: omap_device: track latency in nanoseconds
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>
Diffstat (limited to 'arch/arm/plat-omap')
| -rw-r--r-- | arch/arm/plat-omap/include/plat/omap_device.h | 4 | ||||
| -rw-r--r-- | arch/arm/plat-omap/omap_device.c | 8 |
2 files changed, 6 insertions, 6 deletions
diff --git a/arch/arm/plat-omap/include/plat/omap_device.h b/arch/arm/plat-omap/include/plat/omap_device.h index d93924699a1b..dc1fac1d805c 100644 --- a/arch/arm/plat-omap/include/plat/omap_device.h +++ b/arch/arm/plat-omap/include/plat/omap_device.h @@ -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 * diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c index 51c9d560a0cd..1e5648d3e3d8 100644 --- a/arch/arm/plat-omap/omap_device.c +++ b/arch/arm/plat-omap/omap_device.c @@ -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: " |