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| author | Alexander Aring <alex.aring@gmail.com> | 2015-07-30 13:13:29 +0300 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2015-07-30 15:02:21 +0300 |
| commit | 8b44f0dd2f90acd6c8842537223b39f890f2e713 (patch) | |
| tree | 7789af0ef9d89209ed6f2f993ab9392520661c4a /drivers/net/ieee802154/at86rf230.c | |
| parent | 54c9ee39923c0ffa27b99a1b7321e0d07408c97b (diff) | |
| download | linux-8b44f0dd2f90acd6c8842537223b39f890f2e713.tar.xz | |
at86rf230: remove hrtimer on 1 usec delay
According Documentation/timers/timers-howto.txt the usually case for
setting up a hrtimer takes > ~10us. So we should use udelay in this
case so we are sure that the state change was done, before doing the
state change assert.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/net/ieee802154/at86rf230.c')
| -rw-r--r-- | drivers/net/ieee802154/at86rf230.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c index f7bd9f3ddaac..d0d5bf6cbb68 100644 --- a/drivers/net/ieee802154/at86rf230.c +++ b/drivers/net/ieee802154/at86rf230.c @@ -545,7 +545,9 @@ at86rf230_async_state_delay(void *context) } /* Default delay is 1us in the most cases */ - tim = ktime_set(0, NSEC_PER_USEC); + udelay(1); + at86rf230_async_state_timer(&ctx->timer); + return; change: hrtimer_start(&ctx->timer, tim, HRTIMER_MODE_REL); |