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Input: cobalt buttons - separate device and driver registration

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Create platform device for cobalt buttons as part of arch setup.
This makes the driver follow current driver model more closely.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
This commit is contained in:
Dmitry Torokhov 2007-04-12 01:36:12 -04:00
parent 0de9550971
commit d0a0515fc3
3 changed files with 56 additions and 24 deletions
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2
arch/mips/cobalt/Makefile
View File

@ -2,7 +2,7 @@
# Makefile for the Cobalt micro systems family specific parts of the kernel
#
obj-y := irq.o reset.o setup.o
obj-y := irq.o reset.o setup.o buttons.o
obj-$(CONFIG_EARLY_PRINTK) += console.o

54
arch/mips/cobalt/buttons.c Normal file
View File

@ -0,0 +1,54 @@
/*
* Cobalt buttons platform device.
*
* Copyright (C) 2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/platform_device.h>
#include <linux/errno.h>
#include <linux/init.h>
static struct resource cobalt_buttons_resource __initdata = {
.start = 0x1d000000,
.end = 0x1d000003,
.flags = IORESOURCE_MEM,
};
static __init int cobalt_add_buttons(void)
{
struct platform_device *pd;
int error;
pd = platform_device_alloc("Cobalt buttons", -1);
if (!pd)
return -ENOMEM;
error = platform_device_add_resources(pd, &cobalt_buttons_resource, 1);
if (error)
goto err_free_device;
error = platform_device_add(pd);
if (error)
goto err_free_device;
return 0;
err_free_device:
platform_device_put(pd);
return error;
}
device_initcall(cobalt_add_buttons);

24
drivers/input/misc/cobalt_btns.c
View File

@ -50,14 +50,6 @@ static struct buttons_map buttons_map[] = {
{ 0x80000000, KEY_SELECT, },
};
static struct resource cobalt_buttons_resource __initdata = {
.start = 0x1d000000,
.end = 0x1d000003,
.flags = IORESOURCE_MEM,
};
static struct platform_device *cobalt_buttons_device;
static struct timer_list buttons_timer;
static void handle_buttons(unsigned long data)
@ -183,26 +175,12 @@ static struct platform_driver cobalt_buttons_driver = {
static int __init cobalt_buttons_init(void)
{
int retval;
cobalt_buttons_device = platform_device_register_simple("Cobalt buttons", -1,
&cobalt_buttons_resource, 1);
if (IS_ERR(cobalt_buttons_device)) {
retval = PTR_ERR(cobalt_buttons_device);
return retval;
}
retval = platform_driver_register(&cobalt_buttons_driver);
if (retval < 0)
platform_device_unregister(cobalt_buttons_device);
return retval;
return platform_driver_register(&cobalt_buttons_driver);
}
static void __exit cobalt_buttons_exit(void)
{
platform_driver_unregister(&cobalt_buttons_driver);
platform_device_unregister(cobalt_buttons_device);
}
module_init(cobalt_buttons_init);