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Revision b4cd08aa1f53c831e67dc5c6bc9f9acff27abcba authored by Wolfram Sang on 16 December 2015, 19:05:18 UTC, committed by Wolfram Sang on 19 December 2015, 11:00:37 UTC 
i2c: rcar: disable runtime PM correctly in slave mode
 
When we also are I2C slave, we need to disable runtime PM because the
address detection mechanism needs to be active all the time. However, we
can reenable runtime PM once the slave instance was unregistered. So,
use pm_runtime_get_sync/put to achieve this, since it has proper
refcounting. pm_runtime_allow/forbid is like a global knob controllable
from userspace which is unsuitable here.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
1 parent e79e72c
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mip6.h 
/*
 * Copyright (C)2003-2006 Helsinki University of Technology
 * Copyright (C)2003-2006 USAGI/WIDE Project
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */
/*
 * Authors:
 *	Noriaki TAKAMIYA @USAGI
 *	Masahide NAKAMURA @USAGI
 *	YOSHIFUJI Hideaki @USAGI
 */
#ifndef _NET_MIP6_H
#define _NET_MIP6_H

#include <linux/skbuff.h>
#include <net/sock.h>

/*
 * Mobility Header
 */
struct ip6_mh {
	__u8	ip6mh_proto;
	__u8	ip6mh_hdrlen;
	__u8	ip6mh_type;
	__u8	ip6mh_reserved;
	__u16	ip6mh_cksum;
	/* Followed by type specific messages */
	__u8	data[0];
} __packed;

#define IP6_MH_TYPE_BRR		0   /* Binding Refresh Request */
#define IP6_MH_TYPE_HOTI	1   /* HOTI Message   */
#define IP6_MH_TYPE_COTI	2   /* COTI Message  */
#define IP6_MH_TYPE_HOT		3   /* HOT Message   */
#define IP6_MH_TYPE_COT		4   /* COT Message  */
#define IP6_MH_TYPE_BU		5   /* Binding Update */
#define IP6_MH_TYPE_BACK	6   /* Binding ACK */
#define IP6_MH_TYPE_BERROR	7   /* Binding Error */
#define IP6_MH_TYPE_MAX		IP6_MH_TYPE_BERROR

#endif
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