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    Subject[PATCH 2/3] ARM: mxs: add gpio-mxs platform devices
    Date
    Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
    ---
    arch/arm/mach-mxs/devices/Makefile | 1 +
    arch/arm/mach-mxs/devices/platform-gpio-mxs.c | 92 +++++++++++++++++++++++++
    2 files changed, 93 insertions(+), 0 deletions(-)
    create mode 100644 arch/arm/mach-mxs/devices/platform-gpio-mxs.c

    diff --git a/arch/arm/mach-mxs/devices/Makefile b/arch/arm/mach-mxs/devices/Makefile
    index 324f282..351915c 100644
    --- a/arch/arm/mach-mxs/devices/Makefile
    +++ b/arch/arm/mach-mxs/devices/Makefile
    @@ -6,4 +6,5 @@ obj-$(CONFIG_MXS_HAVE_PLATFORM_FLEXCAN) += platform-flexcan.o
    obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_I2C) += platform-mxs-i2c.o
    obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_MMC) += platform-mxs-mmc.o
    obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_PWM) += platform-mxs-pwm.o
    +obj-y += platform-gpio-mxs.o
    obj-$(CONFIG_MXS_HAVE_PLATFORM_MXSFB) += platform-mxsfb.o
    diff --git a/arch/arm/mach-mxs/devices/platform-gpio-mxs.c b/arch/arm/mach-mxs/devices/platform-gpio-mxs.c
    new file mode 100644
    index 0000000..3840d8c
    --- /dev/null
    +++ b/arch/arm/mach-mxs/devices/platform-gpio-mxs.c
    @@ -0,0 +1,92 @@
    +/*
    + * Copyright 2011 Freescale Semiconductor, Inc. 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 as published by the
    + * Free Software Foundation.
    + */
    +#include <linux/compiler.h>
    +#include <linux/err.h>
    +#include <linux/init.h>
    +
    +#include <mach/mx23.h>
    +#include <mach/mx28.h>
    +#include <mach/devices-common.h>
    +
    +struct mxs_gpio_data {
    + int id;
    + resource_size_t iobase;
    + resource_size_t iosize;
    + resource_size_t irq;
    +};
    +
    +#define mxs_gpio_data_entry_single(soc, _id) \
    + { \
    + .id = _id, \
    + .iobase = soc ## _PINCTRL ## _BASE_ADDR, \
    + .irq = soc ## _INT_GPIO ## _id, \
    + }
    +
    +#define mxs_gpio_data_entry(soc, _id) \
    + [_id] = mxs_gpio_data_entry_single(soc, _id)
    +
    +#ifdef CONFIG_SOC_IMX23
    +const struct mxs_gpio_data mx23_gpio_data[] __initconst = {
    +#define mx23_gpio_data_entry(_id) \
    + mxs_gpio_data_entry(MX23, _id)
    + mx23_gpio_data_entry(0),
    + mx23_gpio_data_entry(1),
    + mx23_gpio_data_entry(2),
    +};
    +#endif
    +
    +#ifdef CONFIG_SOC_IMX28
    +const struct mxs_gpio_data mx28_gpio_data[] __initconst = {
    +#define mx28_gpio_data_entry(_id) \
    + mxs_gpio_data_entry(MX28, _id)
    + mx28_gpio_data_entry(0),
    + mx28_gpio_data_entry(1),
    + mx28_gpio_data_entry(2),
    + mx28_gpio_data_entry(3),
    + mx28_gpio_data_entry(4),
    +};
    +#endif
    +
    +struct platform_device *__init mxs_add_gpio(
    + const struct mxs_gpio_data *data)
    +{
    + struct resource res[] = {
    + {
    + .start = data->iobase,
    + .end = data->iobase + SZ_8K - 1,
    + .flags = IORESOURCE_MEM,
    + }, {
    + .start = data->irq,
    + .end = data->irq,
    + .flags = IORESOURCE_IRQ,
    + },
    + };
    +
    + return mxs_add_platform_device("mxs-gpio", data->id,
    + res, ARRAY_SIZE(res), NULL, 0);
    +}
    +
    +static int __init mxs_add_mxs_gpio(void)
    +{
    + int i;
    +
    +#ifdef CONFIG_SOC_IMX23
    + if (cpu_is_mx23())
    + for (i = 0; i < ARRAY_SIZE(mx23_gpio_data); i++)
    + mxs_add_gpio(&mx23_gpio_data[i]);
    +#endif
    +
    +#ifdef CONFIG_SOC_IMX28
    + if (cpu_is_mx28())
    + for (i = 0; i < ARRAY_SIZE(mx28_gpio_data); i++)
    + mxs_add_gpio(&mx28_gpio_data[i]);
    +#endif
    +
    + return 0;
    +}
    +postcore_initcall(mxs_add_mxs_gpio);
    --
    1.7.4.1


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