diff options
Diffstat (limited to 'arch/arm/plat-s3c24xx/gpio.c')
-rw-r--r-- | arch/arm/plat-s3c24xx/gpio.c | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/arch/arm/plat-s3c24xx/gpio.c b/arch/arm/plat-s3c24xx/gpio.c deleted file mode 100644 index 2f3d7c089dfa..000000000000 --- a/arch/arm/plat-s3c24xx/gpio.c +++ /dev/null | |||
@@ -1,96 +0,0 @@ | |||
1 | /* linux/arch/arm/plat-s3c24xx/gpio.c | ||
2 | * | ||
3 | * Copyright (c) 2004-2010 Simtec Electronics | ||
4 | * Ben Dooks <ben@simtec.co.uk> | ||
5 | * | ||
6 | * S3C24XX GPIO support | ||
7 | * | ||
8 | * 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 | * the Free Software Foundation; either version 2 of the License, or | ||
11 | * (at your option) any later version. | ||
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 | #include <linux/kernel.h> | ||
24 | #include <linux/init.h> | ||
25 | #include <linux/module.h> | ||
26 | #include <linux/interrupt.h> | ||
27 | #include <linux/ioport.h> | ||
28 | #include <linux/gpio.h> | ||
29 | #include <linux/io.h> | ||
30 | |||
31 | #include <mach/hardware.h> | ||
32 | #include <mach/gpio-fns.h> | ||
33 | #include <asm/irq.h> | ||
34 | |||
35 | #include <mach/regs-gpio.h> | ||
36 | |||
37 | #include <plat/gpio-core.h> | ||
38 | |||
39 | /* gpiolib wrappers until these are totally eliminated */ | ||
40 | |||
41 | void s3c2410_gpio_pullup(unsigned int pin, unsigned int to) | ||
42 | { | ||
43 | int ret; | ||
44 | |||
45 | WARN_ON(to); /* should be none of these left */ | ||
46 | |||
47 | if (!to) { | ||
48 | /* if pull is enabled, try first with up, and if that | ||
49 | * fails, try using down */ | ||
50 | |||
51 | ret = s3c_gpio_setpull(pin, S3C_GPIO_PULL_UP); | ||
52 | if (ret) | ||
53 | s3c_gpio_setpull(pin, S3C_GPIO_PULL_DOWN); | ||
54 | } else { | ||
55 | s3c_gpio_setpull(pin, S3C_GPIO_PULL_NONE); | ||
56 | } | ||
57 | } | ||
58 | EXPORT_SYMBOL(s3c2410_gpio_pullup); | ||
59 | |||
60 | void s3c2410_gpio_setpin(unsigned int pin, unsigned int to) | ||
61 | { | ||
62 | /* do this via gpiolib until all users removed */ | ||
63 | |||
64 | gpio_request(pin, "temporary"); | ||
65 | gpio_set_value(pin, to); | ||
66 | gpio_free(pin); | ||
67 | } | ||
68 | |||
69 | EXPORT_SYMBOL(s3c2410_gpio_setpin); | ||
70 | |||
71 | unsigned int s3c2410_gpio_getpin(unsigned int pin) | ||
72 | { | ||
73 | struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin); | ||
74 | unsigned long offs = pin - chip->chip.base; | ||
75 | |||
76 | return __raw_readl(chip->base + 0x04) & (1<< offs); | ||
77 | } | ||
78 | |||
79 | EXPORT_SYMBOL(s3c2410_gpio_getpin); | ||
80 | |||
81 | unsigned int s3c2410_modify_misccr(unsigned int clear, unsigned int change) | ||
82 | { | ||
83 | unsigned long flags; | ||
84 | unsigned long misccr; | ||
85 | |||
86 | local_irq_save(flags); | ||
87 | misccr = __raw_readl(S3C24XX_MISCCR); | ||
88 | misccr &= ~clear; | ||
89 | misccr ^= change; | ||
90 | __raw_writel(misccr, S3C24XX_MISCCR); | ||
91 | local_irq_restore(flags); | ||
92 | |||
93 | return misccr; | ||
94 | } | ||
95 | |||
96 | EXPORT_SYMBOL(s3c2410_modify_misccr); | ||