[linux-block.git] / drivers / pcmcia / pxa2xx_palmtx.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * linux/drivers/pcmcia/pxa2xx_palmtx.c
 *
 * Driver for Palm T|X PCMCIA
 *
 * 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/palmtx.h>
#include "soc_common.h"

static struct gpio palmtx_pcmcia_gpios[] = {
	{ GPIO_NR_PALMTX_PCMCIA_POWER1,	GPIOF_INIT_LOW,	"PCMCIA Power 1" },
	{ GPIO_NR_PALMTX_PCMCIA_POWER2,	GPIOF_INIT_LOW,	"PCMCIA Power 2" },
	{ GPIO_NR_PALMTX_PCMCIA_RESET,	GPIOF_INIT_HIGH,"PCMCIA Reset" },
};

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

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

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

	return ret;
}

static void palmtx_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
	gpio_free_array(palmtx_pcmcia_gpios, ARRAY_SIZE(palmtx_pcmcia_gpios));
}

static void palmtx_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
palmtx_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
				const socket_state_t *state)
{
	gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER1, 1);
	gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER2, 1);
	gpio_set_value(GPIO_NR_PALMTX_PCMCIA_RESET,
			!!(state->flags & SS_RESET));

	return 0;
}

static struct pcmcia_low_level palmtx_pcmcia_ops = {
	.owner			= THIS_MODULE,

	.first			= 0,
	.nr			= 1,

	.hw_init		= palmtx_pcmcia_hw_init,
	.hw_shutdown		= palmtx_pcmcia_hw_shutdown,

	.socket_state		= palmtx_pcmcia_socket_state,
	.configure_socket	= palmtx_pcmcia_configure_socket,
};

static struct platform_device *palmtx_pcmcia_device;

static int __init palmtx_pcmcia_init(void)
{
	int ret;

	if (!machine_is_palmtx())
		return -ENODEV;

	palmtx_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
	if (!palmtx_pcmcia_device)
		return -ENOMEM;

	ret = platform_device_add_data(palmtx_pcmcia_device, &palmtx_pcmcia_ops,
					sizeof(palmtx_pcmcia_ops));

	if (!ret)
		ret = platform_device_add(palmtx_pcmcia_device);

	if (ret)
		platform_device_put(palmtx_pcmcia_device);

	return ret;
}

static void __exit palmtx_pcmcia_exit(void)
{
	platform_device_unregister(palmtx_pcmcia_device);
}

module_init(palmtx_pcmcia_init);
module_exit(palmtx_pcmcia_exit);

MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
MODULE_DESCRIPTION("PCMCIA support for Palm T|X");
MODULE_ALIAS("platform:pxa2xx-pcmcia");
MODULE_LICENSE("GPL");
Commit	Line	Data
d2912cb1	1	// SPDX-License-Identifier: GPL-2.0-only
35978408 MV	2	/*
	3	* linux/drivers/pcmcia/pxa2xx_palmtx.c
	4	*
	5	* Driver for Palm T\|X PCMCIA
	6	*
9ed3fbf1	7	* Copyright (C) 2007-2011 Marek Vasut <marek.vasut@gmail.com>
35978408 MV	8	*/
	9
	10	#include <linux/module.h>
	11	#include <linux/platform_device.h>
235a175c	12	#include <linux/gpio.h>
35978408 MV	13
35978408 MV	14	#include <asm/mach-types.h>
a09e64fb	15	#include <mach/palmtx.h>
35978408 MV	16	#include "soc_common.h"
35978408 MV	17
235a175c MV	18	static struct gpio palmtx_pcmcia_gpios[] = {
	19	{ GPIO_NR_PALMTX_PCMCIA_POWER1, GPIOF_INIT_LOW, "PCMCIA Power 1" },
	20	{ GPIO_NR_PALMTX_PCMCIA_POWER2, GPIOF_INIT_LOW, "PCMCIA Power 2" },
	21	{ GPIO_NR_PALMTX_PCMCIA_RESET, GPIOF_INIT_HIGH,"PCMCIA Reset" },
235a175c MV	22	};
235a175c MV	23
35978408 MV	24	static int palmtx_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
35978408 MV	25	{
574047f9 MV	26	int ret;
574047f9 MV	27
235a175c MV	28	ret = gpio_request_array(palmtx_pcmcia_gpios,
235a175c MV	29	ARRAY_SIZE(palmtx_pcmcia_gpios));
574047f9	30
a9bb5a4b RK	31	skt->stat[SOC_STAT_RDY].gpio = GPIO_NR_PALMTX_PCMCIA_READY;
a9bb5a4b RK	32	skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready";
574047f9	33
574047f9	34	return ret;
35978408 MV	35	}
	36
	37	static void palmtx_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
	38	{
235a175c	39	gpio_free_array(palmtx_pcmcia_gpios, ARRAY_SIZE(palmtx_pcmcia_gpios));
35978408 MV	40	}
	41
	42	static void palmtx_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
	43	struct pcmcia_state *state)
	44	{
	45	state->detect = 1; /* always inserted */
35978408 MV	46	state->vs_3v = 1;
	47	state->vs_Xv = 0;
	48	}
	49
	50	static int
	51	palmtx_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
	52	const socket_state_t *state)
	53	{
	54	gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER1, 1);
	55	gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER2, 1);
	56	gpio_set_value(GPIO_NR_PALMTX_PCMCIA_RESET,
	57	!!(state->flags & SS_RESET));
	58
	59	return 0;
	60	}
	61
35978408 MV	62	static struct pcmcia_low_level palmtx_pcmcia_ops = {
	63	.owner = THIS_MODULE,
	64
	65	.first = 0,
	66	.nr = 1,
	67
	68	.hw_init = palmtx_pcmcia_hw_init,
	69	.hw_shutdown = palmtx_pcmcia_hw_shutdown,
	70
	71	.socket_state = palmtx_pcmcia_socket_state,
	72	.configure_socket = palmtx_pcmcia_configure_socket,
35978408 MV	73	};
	74
	75	static struct platform_device *palmtx_pcmcia_device;
	76
	77	static int __init palmtx_pcmcia_init(void)
	78	{
	79	int ret;
	80
	81	if (!machine_is_palmtx())
	82	return -ENODEV;
	83
	84	palmtx_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
	85	if (!palmtx_pcmcia_device)
	86	return -ENOMEM;
	87
	88	ret = platform_device_add_data(palmtx_pcmcia_device, &palmtx_pcmcia_ops,
	89	sizeof(palmtx_pcmcia_ops));
	90
	91	if (!ret)
	92	ret = platform_device_add(palmtx_pcmcia_device);
	93
	94	if (ret)
	95	platform_device_put(palmtx_pcmcia_device);
	96
	97	return ret;
	98	}
	99
	100	static void __exit palmtx_pcmcia_exit(void)
	101	{
	102	platform_device_unregister(palmtx_pcmcia_device);
	103	}
	104
574047f9	105	module_init(palmtx_pcmcia_init);
35978408 MV	106	module_exit(palmtx_pcmcia_exit);
	107
	108	MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
	109	MODULE_DESCRIPTION("PCMCIA support for Palm T\|X");
	110	MODULE_ALIAS("platform:pxa2xx-pcmcia");
	111	MODULE_LICENSE("GPL");