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msm: gpiomux: Move public API to public header

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The gpiomux.h header contains some SOC ifdefs.  However, the API that
is actually used by the GPIO driver only uses two functions that are
general.  Move these general definitions into a public header file.

Change-Id: Ia5df8af87dba268225598d56908e523bcfc24ef6
Signed-off-by: David Brown <davidb@codeaurora.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
This commit is contained in:
David Brown 2011-05-16 13:32:15 -07:00
parent 10eb5f6bcb
commit 030a77fc9b
3 changed files with 40 additions and 17 deletions
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2
arch/arm/mach-msm/gpio.c
View File

@ -21,8 +21,8 @@
#include <linux/irq.h>
#include <linux/module.h>
#include <mach/cpu.h>
#include <mach/msm_gpiomux.h>
#include "gpio_hw.h"
#include "gpiomux.h"
#define FIRST_GPIO_IRQ MSM_GPIO_TO_INT(0)

17
arch/arm/mach-msm/gpiomux.h
View File

@ -19,6 +19,7 @@
#include <linux/bitops.h>
#include <linux/errno.h>
#include <mach/msm_gpiomux.h>
#if defined(CONFIG_MSM_V2_TLMM)
#include "gpiomux-v2.h"
@ -71,12 +72,6 @@ enum {
*/
extern struct msm_gpiomux_config msm_gpiomux_configs[GPIOMUX_NGPIOS];
/* Increment a gpio's reference count, possibly activating the line. */
int __must_check msm_gpiomux_get(unsigned gpio);
/* Decrement a gpio's reference count, possibly suspending the line. */
int msm_gpiomux_put(unsigned gpio);
/* Install a new configuration to the gpio line. To avoid overwriting
* a configuration, leave the VALID bit out.
*/
@ -94,16 +89,6 @@ int msm_gpiomux_write(unsigned gpio,
*/
void __msm_gpiomux_write(unsigned gpio, gpiomux_config_t val);
#else
static inline int __must_check msm_gpiomux_get(unsigned gpio)
{
return -ENOSYS;
}
static inline int msm_gpiomux_put(unsigned gpio)
{
return -ENOSYS;
}
static inline int msm_gpiomux_write(unsigned gpio,
gpiomux_config_t active,
gpiomux_config_t suspended)

38
arch/arm/mach-msm/include/mach/msm_gpiomux.h Normal file
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@ -0,0 +1,38 @@
/* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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.
*/
#ifndef _LINUX_MSM_GPIOMUX_H
#define _LINUX_MSM_GPIOMUX_H
#ifdef CONFIG_MSM_GPIOMUX
/* Increment a gpio's reference count, possibly activating the line. */
int __must_check msm_gpiomux_get(unsigned gpio);
/* Decrement a gpio's reference count, possibly suspending the line. */
int msm_gpiomux_put(unsigned gpio);
#else
static inline int __must_check msm_gpiomux_get(unsigned gpio)
{
return -ENOSYS;
}
static inline int msm_gpiomux_put(unsigned gpio)
{
return -ENOSYS;
}
#endif
#endif /* _LINUX_MSM_GPIOMUX_H */