diff options
| -rw-r--r-- | sys/dev/acpi/acpiec.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/sys/dev/acpi/acpiec.c b/sys/dev/acpi/acpiec.c index a7627b84e57..ec2e1d58264 100644 --- a/sys/dev/acpi/acpiec.c +++ b/sys/dev/acpi/acpiec.c @@ -1,4 +1,4 @@ -/* $OpenBSD: acpiec.c,v 1.53 2016/05/07 18:03:36 kettenis Exp $ */ +/* $OpenBSD: acpiec.c,v 1.54 2016/08/23 18:26:21 jcs Exp $ */ /* * Copyright (c) 2006 Can Erkin Acar <canacar@openbsd.org> * @@ -218,10 +218,12 @@ acpiec_read(struct acpiec_softc *sc, u_int8_t addr, int len, u_int8_t *buffer) */ dnprintf(20, "%s: read %d, %d\n", DEVNAME(sc), (int)addr, len); sc->sc_ecbusy = 1; - acpiec_burst_enable(sc); + if (len > 1) + acpiec_burst_enable(sc); for (reg = 0; reg < len; reg++) buffer[reg] = acpiec_read_1(sc, addr + reg); - acpiec_burst_disable(sc); + if (len > 1) + acpiec_burst_disable(sc); sc->sc_ecbusy = 0; } @@ -237,10 +239,12 @@ acpiec_write(struct acpiec_softc *sc, u_int8_t addr, int len, u_int8_t *buffer) */ dnprintf(20, "%s: write %d, %d\n", DEVNAME(sc), (int)addr, len); sc->sc_ecbusy = 1; - acpiec_burst_enable(sc); + if (len > 1) + acpiec_burst_enable(sc); for (reg = 0; reg < len; reg++) acpiec_write_1(sc, addr + reg, buffer[reg]); - acpiec_burst_disable(sc); + if (len > 1) + acpiec_burst_disable(sc); sc->sc_ecbusy = 0; } |