From: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx> During suspend and resume, when omap_device deactivation and activation is happening, the timekeeping subsystem has likely already been suspended. Thus getnstimeofday() will fail and trigger a WARN(). Use read_persistent_clock() instead of getnstimeofday() to avoid this. Signed-off-by: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Paul Walmsley <paul@xxxxxxxxx> --- arch/arm/plat-omap/omap_device.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c index 54fe0a2..9a502af 100644 --- a/arch/arm/plat-omap/omap_device.c +++ b/arch/arm/plat-omap/omap_device.c @@ -134,12 +134,12 @@ static int _omap_device_activate(struct omap_device *od, u8 ignore_lat) (od->dev_wakeup_lat <= od->_dev_wakeup_lat_limit)) break; - getnstimeofday(&a); + read_persistent_clock(&a); /* XXX check return code */ odpl->activate_func(od); - getnstimeofday(&b); + read_persistent_clock(&b); c = timespec_sub(b, a); act_lat = timespec_to_ns(&c) * NSEC_PER_USEC; @@ -190,12 +190,12 @@ static int _omap_device_deactivate(struct omap_device *od, u8 ignore_lat) od->_dev_wakeup_lat_limit)) break; - getnstimeofday(&a); + read_persistent_clock(&a); /* XXX check return code */ odpl->deactivate_func(od); - getnstimeofday(&b); + read_persistent_clock(&b); c = timespec_sub(b, a); deact_lat = timespec_to_ns(&c) * NSEC_PER_USEC; -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
