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Code Issues Releases Activity

Don't use spinlocks here. The iicbus transactions can take a long

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time, and this prevents interrupts (say for Hz/hardclock) from
happening.  Time stands still during the transfers...
This commit is contained in:
Warner Losh 2007-04-17 05:48:35 +00:00
parent f0f86fcd52
commit 1a13e01f7f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=168806
1 changed files with 3 additions and 3 deletions
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6
sys/dev/iicbus/icee.c
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@ -59,10 +59,10 @@ struct icee_softc {
int wr_sz; /* What's the write page size */
};
#define ICEE_LOCK(_sc) mtx_lock_spin(&(_sc)->sc_mtx)
#define ICEE_UNLOCK(_sc) mtx_unlock_spin(&(_sc)->sc_mtx)
#define ICEE_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
#define ICEE_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
#define ICEE_LOCK_INIT(_sc) \
mtx_init(&_sc->sc_mtx, device_get_nameunit(_sc->sc_dev), "icee", MTX_SPIN)
mtx_init(&_sc->sc_mtx, device_get_nameunit(_sc->sc_dev), "icee", MTX_DEF)
#define ICEE_LOCK_DESTROY(_sc) mtx_destroy(&_sc->sc_mtx);
#define ICEE_ASSERT_LOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_OWNED);
#define ICEE_ASSERT_UNLOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_NOTOWNED);