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authorBen Dooks <ben-linux@fluff.org>2008-07-03 06:24:25 -0400
committerBen Dooks <ben-linux@fluff.org>2008-07-03 11:51:23 -0400
commitf348a2a2817e9d24b1edd4befc9659ec83501ca5 (patch)
tree99eb68575f9ca61c1de21502db2c41bbf2716609 /include/asm-arm
parented9137f10377a59487cf43c76dd0d3bbf489d799 (diff)
[ARM] S3C24XX: Add gpiolib support
Add support for gpilib on all S3C24XX platforms. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'include/asm-arm')
-rw-r--r--include/asm-arm/arch-s3c2410/gpio.h74
1 files changed, 12 insertions, 62 deletions
diff --git a/include/asm-arm/arch-s3c2410/gpio.h b/include/asm-arm/arch-s3c2410/gpio.h
index 7583895fd336..18e10d2c35ea 100644
--- a/include/asm-arm/arch-s3c2410/gpio.h
+++ b/include/asm-arm/arch-s3c2410/gpio.h
@@ -1,68 +1,18 @@
1/* 1/* linux/include/asm-arm/arch-s3c2410/gpio.h
2 * linux/include/asm-arm/arch-s3c2410/gpio.h
3 * 2 *
4 * S3C2410 GPIO wrappers for arch-neutral GPIO calls 3 * Copyright (c) 2008 Simtec Electronics
4 * http://armlinux.simtec.co.uk/
5 * Ben Dooks <ben@simtec.co.uk>
5 * 6 *
6 * Written by Philipp Zabel <philipp.zabel@gmail.com> 7 * S3C2410 - GPIO lib support
7 * 8 *
8 * This program is free software; you can redistribute it and/or modify 9 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by 10 * it under the terms of the GNU General Public License version 2 as
10 * the Free Software Foundation; either version 2 of the License, or 11 * published by the Free Software Foundation.
11 * (at your option) any later version. 12*/
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24#ifndef __ASM_ARCH_S3C2410_GPIO_H
25#define __ASM_ARCH_S3C2410_GPIO_H
26
27#include <asm/irq.h>
28#include <asm/hardware.h>
29#include <asm/arch/regs-gpio.h>
30
31static inline int gpio_request(unsigned gpio, const char *label)
32{
33 return 0;
34}
35
36static inline void gpio_free(unsigned gpio)
37{
38 return;
39}
40
41static inline int gpio_direction_input(unsigned gpio)
42{
43 s3c2410_gpio_cfgpin(gpio, S3C2410_GPIO_INPUT);
44 return 0;
45}
46
47static inline int gpio_direction_output(unsigned gpio, int value)
48{
49 s3c2410_gpio_cfgpin(gpio, S3C2410_GPIO_OUTPUT);
50 /* REVISIT can we write the value first, to avoid glitching? */
51 s3c2410_gpio_setpin(gpio, value);
52 return 0;
53}
54
55#define gpio_get_value(gpio) s3c2410_gpio_getpin(gpio)
56#define gpio_set_value(gpio,value) s3c2410_gpio_setpin(gpio, value)
57
58#include <asm-generic/gpio.h> /* cansleep wrappers */
59
60#ifdef CONFIG_CPU_S3C2400
61#define gpio_to_irq(gpio) s3c2400_gpio_getirq(gpio)
62#else
63#define gpio_to_irq(gpio) s3c2410_gpio_getirq(gpio)
64#endif
65 13
66/* FIXME implement irq_to_gpio() */ 14#define gpio_get_value __gpio_get_value
15#define gpio_set_value __gpio_set_value
16#define gpio_cansleep __gpio_cansleep
67 17
68#endif 18#include <asm-generic/gpio.h>