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Don't send a stop bit immediately after start bit transmission.

This commit is contained in:
kiyohara 2012-07-21 04:21:14 +00:00
parent d6a35d155a
commit 7ae4f9e50f
1 changed files with 12 additions and 5 deletions
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17
sys/dev/marvell/gttwsi.c
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@ -1,4 +1,4 @@
/* $NetBSD: gttwsi.c,v 1.5 2010/10/10 04:49:48 kiyohara Exp $ */
/* $NetBSD: gttwsi.c,v 1.6 2012/07/21 04:21:14 kiyohara Exp $ */
/*
* Copyright (c) 2008 Eiji Kawauchi.
* All rights reserved.
@ -66,7 +66,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: gttwsi.c,v 1.5 2010/10/10 04:49:48 kiyohara Exp $");
__KERNEL_RCSID(0, "$NetBSD: gttwsi.c,v 1.6 2012/07/21 04:21:14 kiyohara Exp $");
#include "locators.h"
#include <sys/param.h>
@ -391,9 +391,16 @@ gttwsi_wait(struct gttwsi_softc *sc, uint32_t control, uint32_t expect,
return EIO;
}
if ((flags & I2C_F_STOP) && expect != STAT_RSCT &&
expect != STAT_MRRD_AT && expect != STAT_ARBT_AR)
error = gttwsi_send_stop(sc, flags);
if (flags & I2C_F_STOP)
switch (expect) {
case STAT_SCT:
case STAT_RSCT:
case STAT_MRRD_AT:
case STAT_ARBT_AR:
break;
default:
error = gttwsi_send_stop(sc, flags);
}
return error;
}