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gpio/mxs: Move Freescale mxs gpio driver to drivers/gpio

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GPIO drivers are getting moved to drivers/gpio for cleanup and
consolidation.  This patch moves the mxs driver.  Follow up patches
will clean it up and make it a fine upstanding example of a gpio
driver.

v2: Removed header file entirely and put struct definition directly
    into driver.  The struct isn't used anywhere else in the kernel.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Grant Likely 2011-06-06 09:37:58 -06:00
parent 59c5f46fbe
commit 7b2fa57020
6 changed files with 15 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mach-mxs/Makefile
View File

@ -1,5 +1,5 @@
# Common support
obj-y := clock.o devices.o gpio.o icoll.o iomux.o system.o timer.o
obj-y := clock.o devices.o icoll.o iomux.o system.o timer.o
obj-$(CONFIG_MXS_OCOTP) += ocotp.o
obj-$(CONFIG_PM) += pm.o

34
arch/arm/mach-mxs/gpio.h
View File

@ -1,34 +0,0 @@
/*
* Copyright 2007 Freescale Semiconductor, Inc. All Rights Reserved.
* Copyright 2008 Juergen Beisert, kernel@pengutronix.de
*
* 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.
*/
#ifndef __MXS_GPIO_H__
#define __MXS_GPIO_H__
struct mxs_gpio_port {
void __iomem *base;
int id;
int irq;
int irq_high;
int virtual_irq_start;
struct gpio_chip chip;
};
int mxs_gpio_init(struct mxs_gpio_port*, int);
#endif /* __MXS_GPIO_H__ */

1
arch/arm/mach-mxs/mach-mx28evk.c
View File

@ -26,7 +26,6 @@
#include <mach/iomux-mx28.h>
#include "devices-mx28.h"
#include "gpio.h"
#define MX28EVK_FLEXCAN_SWITCH MXS_GPIO_NR(2, 13)
#define MX28EVK_FEC_PHY_POWER MXS_GPIO_NR(2, 15)

4
drivers/gpio/Kconfig
View File

@ -93,6 +93,10 @@ config GPIO_EXYNOS4
help
Say yes here to support Samsung Exynos4 series SoCs GPIO library
config GPIO_MXS
def_bool y
depends on ARCH_MXS
config GPIO_PLAT_SAMSUNG
bool "Samsung SoCs GPIO library support"
default y if SAMSUNG_GPIOLIB_4BIT

1
drivers/gpio/Makefile
View File

@ -9,6 +9,7 @@ obj-$(CONFIG_GPIO_ADP5588) += adp5588-gpio.o
obj-$(CONFIG_GPIO_BASIC_MMIO_CORE) += basic_mmio_gpio.o
obj-$(CONFIG_GPIO_BASIC_MMIO) += basic_mmio_gpio.o
obj-$(CONFIG_GPIO_EXYNOS4) += gpio-exynos4.o
obj-$(CONFIG_GPIO_MXS) += gpio-mxs.o
obj-$(CONFIG_GPIO_PLAT_SAMSUNG) += gpio-plat-samsung.o
obj-$(CONFIG_GPIO_S5PC100) += gpio-s5pc100.o
obj-$(CONFIG_GPIO_S5PV210) += gpio-s5pv210.o

11
arch/arm/mach-mxs/gpio.c → drivers/gpio/gpio-mxs.c
View File

@ -29,8 +29,6 @@
#include <mach/mx28.h>
#include <asm-generic/bug.h>
#include "gpio.h"
static struct mxs_gpio_port *mxs_gpio_ports;
static int gpio_table_size;
@ -50,6 +48,15 @@ static int gpio_table_size;
#define GPIO_INT_LEV_MASK (1 << 0)
#define GPIO_INT_POL_MASK (1 << 1)
struct mxs_gpio_port {
void __iomem *base;
int id;
int irq;
int irq_high;
int virtual_irq_start;
struct gpio_chip chip;
};
/* Note: This driver assumes 32 GPIOs are handled in one register */
static void clear_gpio_irqstatus(struct mxs_gpio_port *port, u32 index)