diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/sound/ac97_bus.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/sound/ac97_bus.c')
-rw-r--r-- | kernel/sound/ac97_bus.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/kernel/sound/ac97_bus.c b/kernel/sound/ac97_bus.c new file mode 100644 index 000000000..2b50cbe6a --- /dev/null +++ b/kernel/sound/ac97_bus.c @@ -0,0 +1,77 @@ +/* + * Linux driver model AC97 bus interface + * + * Author: Nicolas Pitre + * Created: Jan 14, 2005 + * Copyright: (C) MontaVista Software Inc. + * + * 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. + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/string.h> +#include <sound/ac97_codec.h> + +/* + * Let drivers decide whether they want to support given codec from their + * probe method. Drivers have direct access to the struct snd_ac97 + * structure and may decide based on the id field amongst other things. + */ +static int ac97_bus_match(struct device *dev, struct device_driver *drv) +{ + return 1; +} + +#ifdef CONFIG_PM +static int ac97_bus_suspend(struct device *dev, pm_message_t state) +{ + int ret = 0; + + if (dev->driver && dev->driver->suspend) + ret = dev->driver->suspend(dev, state); + + return ret; +} + +static int ac97_bus_resume(struct device *dev) +{ + int ret = 0; + + if (dev->driver && dev->driver->resume) + ret = dev->driver->resume(dev); + + return ret; +} +#endif /* CONFIG_PM */ + +struct bus_type ac97_bus_type = { + .name = "ac97", + .match = ac97_bus_match, +#ifdef CONFIG_PM + .suspend = ac97_bus_suspend, + .resume = ac97_bus_resume, +#endif /* CONFIG_PM */ +}; + +static int __init ac97_bus_init(void) +{ + return bus_register(&ac97_bus_type); +} + +subsys_initcall(ac97_bus_init); + +static void __exit ac97_bus_exit(void) +{ + bus_unregister(&ac97_bus_type); +} + +module_exit(ac97_bus_exit); + +EXPORT_SYMBOL(ac97_bus_type); + +MODULE_LICENSE("GPL"); |