[linux-2.6-block.git] / drivers / pcmcia / pxa2xx_palmld.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * linux/drivers/pcmcia/pxa2xx_palmld.c
 *
 * Driver for Palm LifeDrive PCMCIA
 *
 * Copyright (C) 2006 Alex Osborne <ato@meshy.org>
 * Copyright (C) 2007-2011 Marek Vasut <marek.vasut@gmail.com>
 */

#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 struct gpio palmld_pcmcia_gpios[] = {
	{ GPIO_NR_PALMLD_PCMCIA_POWER,	GPIOF_INIT_LOW,	"PCMCIA Power" },
	{ GPIO_NR_PALMLD_PCMCIA_RESET,	GPIOF_INIT_HIGH,"PCMCIA Reset" },
};

static int palmld_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
	int ret;

	ret = gpio_request_array(palmld_pcmcia_gpios,
				ARRAY_SIZE(palmld_pcmcia_gpios));

	skt->stat[SOC_STAT_RDY].gpio = GPIO_NR_PALMLD_PCMCIA_READY;
	skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready";

	return ret;
}

static void palmld_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
	gpio_free_array(palmld_pcmcia_gpios, ARRAY_SIZE(palmld_pcmcia_gpios));
}

static void palmld_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
					struct pcmcia_state *state)
{
	state->detect = 1; /* always inserted */
	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 struct pcmcia_low_level palmld_pcmcia_ops = {
	.owner			= THIS_MODULE,

	.first			= 1,
	.nr			= 1,

	.hw_init		= palmld_pcmcia_hw_init,
	.hw_shutdown		= palmld_pcmcia_hw_shutdown,

	.socket_state		= palmld_pcmcia_socket_state,
	.configure_socket	= palmld_pcmcia_configure_socket,
};

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");
Commit	Line	Data
d2912cb1	1	// SPDX-License-Identifier: GPL-2.0-only
6d341675 MV	2	/*
	3	* linux/drivers/pcmcia/pxa2xx_palmld.c
	4	*
	5	* Driver for Palm LifeDrive PCMCIA
	6	*
	7	* Copyright (C) 2006 Alex Osborne <ato@meshy.org>
9ed3fbf1	8	* Copyright (C) 2007-2011 Marek Vasut <marek.vasut@gmail.com>
6d341675 MV	9	*/
	10
	11	#include <linux/module.h>
	12	#include <linux/platform_device.h>
	13	#include <linux/gpio.h>
	14
	15	#include <asm/mach-types.h>
	16	#include <mach/palmld.h>
	17	#include "soc_common.h"
	18
2070417d MV	19	static struct gpio palmld_pcmcia_gpios[] = {
	20	{ GPIO_NR_PALMLD_PCMCIA_POWER, GPIOF_INIT_LOW, "PCMCIA Power" },
	21	{ GPIO_NR_PALMLD_PCMCIA_RESET, GPIOF_INIT_HIGH,"PCMCIA Reset" },
2070417d MV	22	};
2070417d MV	23
6d341675 MV	24	static int palmld_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
	25	{
	26	int ret;
	27
2070417d MV	28	ret = gpio_request_array(palmld_pcmcia_gpios,
2070417d MV	29	ARRAY_SIZE(palmld_pcmcia_gpios));
6d341675	30
a9bb5a4b RK	31	skt->stat[SOC_STAT_RDY].gpio = GPIO_NR_PALMLD_PCMCIA_READY;
a9bb5a4b RK	32	skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready";
6d341675	33
6d341675 MV	34	return ret;
	35	}
	36
	37	static void palmld_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
	38	{
2070417d	39	gpio_free_array(palmld_pcmcia_gpios, ARRAY_SIZE(palmld_pcmcia_gpios));
6d341675 MV	40	}
	41
	42	static void palmld_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
	43	struct pcmcia_state *state)
	44	{
	45	state->detect = 1; /* always inserted */
6d341675 MV	46	state->vs_3v = 1;
	47	state->vs_Xv = 0;
	48	}
	49
	50	static int palmld_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
	51	const socket_state_t *state)
	52	{
	53	gpio_set_value(GPIO_NR_PALMLD_PCMCIA_POWER, 1);
	54	gpio_set_value(GPIO_NR_PALMLD_PCMCIA_RESET,
	55	!!(state->flags & SS_RESET));
	56
	57	return 0;
	58	}
	59
6d341675 MV	60	static struct pcmcia_low_level palmld_pcmcia_ops = {
	61	.owner = THIS_MODULE,
	62
d66ea8d4 MV	63	.first = 1,
d66ea8d4 MV	64	.nr = 1,
6d341675 MV	65
	66	.hw_init = palmld_pcmcia_hw_init,
	67	.hw_shutdown = palmld_pcmcia_hw_shutdown,
	68
	69	.socket_state = palmld_pcmcia_socket_state,
	70	.configure_socket = palmld_pcmcia_configure_socket,
6d341675 MV	71	};
	72
	73	static struct platform_device *palmld_pcmcia_device;
	74
	75	static int __init palmld_pcmcia_init(void)
	76	{
	77	int ret;
	78
	79	if (!machine_is_palmld())
	80	return -ENODEV;
	81
	82	palmld_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
	83	if (!palmld_pcmcia_device)
	84	return -ENOMEM;
	85
	86	ret = platform_device_add_data(palmld_pcmcia_device, &palmld_pcmcia_ops,
	87	sizeof(palmld_pcmcia_ops));
	88
	89	if (!ret)
	90	ret = platform_device_add(palmld_pcmcia_device);
	91
	92	if (ret)
	93	platform_device_put(palmld_pcmcia_device);
	94
	95	return ret;
	96	}
	97
	98	static void __exit palmld_pcmcia_exit(void)
	99	{
	100	platform_device_unregister(palmld_pcmcia_device);
	101	}
	102
	103	module_init(palmld_pcmcia_init);
	104	module_exit(palmld_pcmcia_exit);
	105
	106	MODULE_AUTHOR("Alex Osborne <ato@meshy.org>,"
	107	" Marek Vasut <marek.vasut@gmail.com>");
	108	MODULE_DESCRIPTION("PCMCIA support for Palm LifeDrive");
	109	MODULE_ALIAS("platform:pxa2xx-pcmcia");
	110	MODULE_LICENSE("GPL");