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Commit 6d341675 authored by Marek Vašut's avatar Marek Vašut Committed by Russell King
Browse files

[ARM] 5199/1: PalmLD: PCMCIA driver 



PCMCIA driver for Palm LifeDrive

Signed-off-by: default avatarMarek Vasut <marek.vasut@gmail.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 574047f9

drivers/pcmcia/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -73,4 +73,5 @@ pxa2xx_cs-$(CONFIG_MACH_MAINSTONE) += pxa2xx_mainstone.o 
pxa2xx_cs-$(CONFIG_PXA_SHARPSL)			+= pxa2xx_sharpsl.o

pxa2xx_cs-$(CONFIG_MACH_ARMCORE)		+= pxa2xx_cm_x270.o

pxa2xx_cs-$(CONFIG_MACH_PALMTX)			+= pxa2xx_palmtx.o

pxa2xx_cs-$(CONFIG_MACH_PALMLD)			+= pxa2xx_palmld.o

drivers/pcmcia/pxa2xx_palmld.c

0 → 100644
+151 −0
Original line number Diff line number Diff line 
/*

 * linux/drivers/pcmcia/pxa2xx_palmld.c

 *

 * Driver for Palm LifeDrive PCMCIA

 *

 * Copyright (C) 2006 Alex Osborne <ato@meshy.org>

 * Copyright (C) 2007-2008 Marek Vasut <marek.vasut@gmail.com>

 *

 * 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/module.h>

#include <linux/platform_device.h>

#include <linux/gpio.h>



#include <asm/mach-types.h>

#include <mach/palmld.h>

#include "soc_common.h"



static int palmld_pcmcia_hw_init(struct soc_pcmcia_socket *skt)

{

	int ret;



	ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_POWER, "PCMCIA PWR");

	if (ret)

		goto err1;

	ret = gpio_direction_output(GPIO_NR_PALMLD_PCMCIA_POWER, 0);

	if (ret)

		goto err2;



	ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_RESET, "PCMCIA RST");

	if (ret)

		goto err2;

	ret = gpio_direction_output(GPIO_NR_PALMLD_PCMCIA_RESET, 1);

	if (ret)

		goto err3;



	ret = gpio_request(GPIO_NR_PALMLD_PCMCIA_READY, "PCMCIA RDY");

	if (ret)

		goto err3;

	ret = gpio_direction_input(GPIO_NR_PALMLD_PCMCIA_READY);

	if (ret)

		goto err4;



	skt->irq = IRQ_GPIO(GPIO_NR_PALMLD_PCMCIA_READY);

	return 0;



err4:

	gpio_free(GPIO_NR_PALMLD_PCMCIA_READY);

err3:

	gpio_free(GPIO_NR_PALMLD_PCMCIA_RESET);

err2:

	gpio_free(GPIO_NR_PALMLD_PCMCIA_POWER);

err1:

	return ret;

}



static void palmld_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)

{

	gpio_free(GPIO_NR_PALMLD_PCMCIA_READY);

	gpio_free(GPIO_NR_PALMLD_PCMCIA_RESET);

	gpio_free(GPIO_NR_PALMLD_PCMCIA_POWER);

}



static void palmld_pcmcia_socket_state(struct soc_pcmcia_socket *skt,

					struct pcmcia_state *state)

{

	state->detect = 1; /* always inserted */

	state->ready  = !!gpio_get_value(GPIO_NR_PALMLD_PCMCIA_READY);

	state->bvd1   = 1;

	state->bvd2   = 1;

	state->wrprot = 0;

	state->vs_3v  = 1;

	state->vs_Xv  = 0;

}



static int palmld_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,

					const socket_state_t *state)

{

	gpio_set_value(GPIO_NR_PALMLD_PCMCIA_POWER, 1);

	gpio_set_value(GPIO_NR_PALMLD_PCMCIA_RESET,

			!!(state->flags & SS_RESET));



	return 0;

}



static void palmld_pcmcia_socket_init(struct soc_pcmcia_socket *skt)

{

}



static void palmld_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)

{

}



static struct pcmcia_low_level palmld_pcmcia_ops = {

	.owner			= THIS_MODULE,



	.first			= 0,

	.nr			= 2,



	.hw_init		= palmld_pcmcia_hw_init,

	.hw_shutdown		= palmld_pcmcia_hw_shutdown,



	.socket_state		= palmld_pcmcia_socket_state,

	.configure_socket	= palmld_pcmcia_configure_socket,



	.socket_init		= palmld_pcmcia_socket_init,

	.socket_suspend		= palmld_pcmcia_socket_suspend,

};



static struct platform_device *palmld_pcmcia_device;



static int __init palmld_pcmcia_init(void)

{

	int ret;



	if (!machine_is_palmld())

		return -ENODEV;



	palmld_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);

	if (!palmld_pcmcia_device)

		return -ENOMEM;



	ret = platform_device_add_data(palmld_pcmcia_device, &palmld_pcmcia_ops,

					sizeof(palmld_pcmcia_ops));



	if (!ret)

		ret = platform_device_add(palmld_pcmcia_device);



	if (ret)

		platform_device_put(palmld_pcmcia_device);



	return ret;

}



static void __exit palmld_pcmcia_exit(void)

{

	platform_device_unregister(palmld_pcmcia_device);

}



module_init(palmld_pcmcia_init);

module_exit(palmld_pcmcia_exit);



MODULE_AUTHOR("Alex Osborne <ato@meshy.org>,"

	    " Marek Vasut <marek.vasut@gmail.com>");

MODULE_DESCRIPTION("PCMCIA support for Palm LifeDrive");

MODULE_ALIAS("platform:pxa2xx-pcmcia");

MODULE_LICENSE("GPL");