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parport: add device-model to parport subsystem

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parport subsystem starts using the device-model. Drivers using the
device-model has to define devmodel as true and should register the
device with parport using parport_register_dev_model().

Tested-by: Jean Delvare <jdelvare@suse.de>
Tested-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sudip Mukherjee
2015-05-20 20:56:57 +05:30
committed by Greg Kroah-Hartman
parent 208250dd4c
commit 6fa45a2268
4 changed files with 379 additions and 28 deletions
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15
drivers/parport/procfs.c
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@@ -21,6 +21,7 @@
#include <linux/parport.h>
#include <linux/ctype.h>
#include <linux/sysctl.h>
#include <linux/device.h>
#include <asm/uaccess.h>
@@ -558,8 +559,18 @@ int parport_device_proc_unregister(struct pardevice *device)
static int __init parport_default_proc_register(void)
{
int ret;
parport_default_sysctl_table.sysctl_header =
register_sysctl_table(parport_default_sysctl_table.dev_dir);
if (!parport_default_sysctl_table.sysctl_header)
return -ENOMEM;
ret = parport_bus_init();
if (ret) {
unregister_sysctl_table(parport_default_sysctl_table.
sysctl_header);
return ret;
}
return 0;
}
@@ -570,6 +581,7 @@ static void __exit parport_default_proc_unregister(void)
sysctl_header);
parport_default_sysctl_table.sysctl_header = NULL;
}
parport_bus_exit();
}
#else /* no sysctl or no procfs*/
@@ -596,11 +608,12 @@ int parport_device_proc_unregister(struct pardevice *device)
static int __init parport_default_proc_register (void)
{
return 0;
return parport_bus_init();
}
static void __exit parport_default_proc_unregister (void)
{
parport_bus_exit();
}
#endif