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Use IPL_VM for bus lock so we can do i2c xfers from interrupt context

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This commit is contained in:
jmcneill 2018-05-03 02:08:52 +00:00
parent bad1191a12
commit 2fea52f446
1 changed files with 3 additions and 3 deletions
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6
sys/dev/i2c/gttwsi_core.c
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@ -1,4 +1,4 @@
/* $NetBSD: gttwsi_core.c,v 1.3 2017/10/29 14:59:05 jmcneill Exp $ */
/* $NetBSD: gttwsi_core.c,v 1.4 2018/05/03 02:08:52 jmcneill Exp $ */
/*
* Copyright (c) 2008 Eiji Kawauchi.
* All rights reserved.
@ -66,7 +66,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: gttwsi_core.c,v 1.3 2017/10/29 14:59:05 jmcneill Exp $");
__KERNEL_RCSID(0, "$NetBSD: gttwsi_core.c,v 1.4 2018/05/03 02:08:52 jmcneill Exp $");
#include "locators.h"
#include <sys/param.h>
@ -148,7 +148,7 @@ gttwsi_attach_subr(device_t self, bus_space_tag_t iot, bus_space_handle_t ioh)
if (sc->sc_reg_write == NULL)
sc->sc_reg_write = gttwsi_default_write_4;
mutex_init(&sc->sc_buslock, MUTEX_DEFAULT, IPL_NONE);
mutex_init(&sc->sc_buslock, MUTEX_DEFAULT, IPL_VM);
mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_BIO);
cv_init(&sc->sc_cv, device_xname(self));