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
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
dcbevent.h
/*
* Copyright (c) 2010, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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/>.
*
* Author: John Fastabend <john.r.fastabend@intel.com>
*/
#ifndef _DCB_EVENT_H
#define _DCB_EVENT_H
enum dcbevent_notif_type {
DCB_APP_EVENT = 1,
};
#ifdef CONFIG_DCB
int register_dcbevent_notifier(struct notifier_block *nb);
int unregister_dcbevent_notifier(struct notifier_block *nb);
int call_dcbevent_notifiers(unsigned long val, void *v);
#else
static inline int
register_dcbevent_notifier(struct notifier_block *nb)
{
return 0;
}
static inline int unregister_dcbevent_notifier(struct notifier_block *nb)
{
return 0;
}
static inline int call_dcbevent_notifiers(unsigned long val, void *v)
{
return 0;
}
#endif /* CONFIG_DCB */
#endif
Computing file changes ...
