[linux-2.6-block.git] / drivers / pcmcia / pxa2xx_vpac270.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * linux/drivers/pcmcia/pxa2xx_vpac270.c
 *
 * Driver for Voipac PXA270 PCMCIA and CF sockets
 *
 * Copyright (C) 2010-2011 Marek Vasut <marek.vasut@gmail.com>
 */

#include <linux/gpio.h>
#include <linux/module.h>
#include <linux/platform_device.h>

#include <asm/mach-types.h>

#include <mach/vpac270.h>

#include "soc_common.h"

static struct gpio vpac270_pcmcia_gpios[] = {
	{ GPIO107_VPAC270_PCMCIA_PPEN,	GPIOF_INIT_LOW,	"PCMCIA PPEN" },
	{ GPIO11_VPAC270_PCMCIA_RESET,	GPIOF_INIT_LOW,	"PCMCIA Reset" },
};

static struct gpio vpac270_cf_gpios[] = {
	{ GPIO16_VPAC270_CF_RESET,	GPIOF_INIT_LOW,	"CF Reset" },
};

static int vpac270_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
	int ret;

	if (skt->nr == 0) {
		ret = gpio_request_array(vpac270_pcmcia_gpios,
				ARRAY_SIZE(vpac270_pcmcia_gpios));

		skt->stat[SOC_STAT_CD].gpio = GPIO84_VPAC270_PCMCIA_CD;
		skt->stat[SOC_STAT_CD].name = "PCMCIA CD";
		skt->stat[SOC_STAT_RDY].gpio = GPIO35_VPAC270_PCMCIA_RDY;
		skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready";
	} else {
		ret = gpio_request_array(vpac270_cf_gpios,
				ARRAY_SIZE(vpac270_cf_gpios));

		skt->stat[SOC_STAT_CD].gpio = GPIO17_VPAC270_CF_CD;
		skt->stat[SOC_STAT_CD].name = "CF CD";
		skt->stat[SOC_STAT_RDY].gpio = GPIO12_VPAC270_CF_RDY;
		skt->stat[SOC_STAT_RDY].name = "CF Ready";
	}

	return ret;
}

static void vpac270_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
	if (skt->nr == 0)
		gpio_free_array(vpac270_pcmcia_gpios,
					ARRAY_SIZE(vpac270_pcmcia_gpios));
	else
		gpio_free_array(vpac270_cf_gpios,
					ARRAY_SIZE(vpac270_cf_gpios));
}

static void vpac270_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
					struct pcmcia_state *state)
{
	state->vs_3v  = 1;
	state->vs_Xv  = 0;
}

static int
vpac270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
				const socket_state_t *state)
{
	if (skt->nr == 0) {
		gpio_set_value(GPIO11_VPAC270_PCMCIA_RESET,
			(state->flags & SS_RESET));
		gpio_set_value(GPIO107_VPAC270_PCMCIA_PPEN,
			!(state->Vcc == 33 || state->Vcc == 50));
	} else {
		gpio_set_value(GPIO16_VPAC270_CF_RESET,
			(state->flags & SS_RESET));
	}

	return 0;
}

static struct pcmcia_low_level vpac270_pcmcia_ops = {
	.owner			= THIS_MODULE,

	.first			= 0,
	.nr			= 2,

	.hw_init		= vpac270_pcmcia_hw_init,
	.hw_shutdown		= vpac270_pcmcia_hw_shutdown,

	.socket_state		= vpac270_pcmcia_socket_state,
	.configure_socket	= vpac270_pcmcia_configure_socket,
};

static struct platform_device *vpac270_pcmcia_device;

static int __init vpac270_pcmcia_init(void)
{
	int ret;

	if (!machine_is_vpac270())
		return -ENODEV;

	vpac270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
	if (!vpac270_pcmcia_device)
		return -ENOMEM;

	ret = platform_device_add_data(vpac270_pcmcia_device,
		&vpac270_pcmcia_ops, sizeof(vpac270_pcmcia_ops));

	if (!ret)
		ret = platform_device_add(vpac270_pcmcia_device);

	if (ret)
		platform_device_put(vpac270_pcmcia_device);

	return ret;
}

static void __exit vpac270_pcmcia_exit(void)
{
	platform_device_unregister(vpac270_pcmcia_device);
}

module_init(vpac270_pcmcia_init);
module_exit(vpac270_pcmcia_exit);

MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
MODULE_DESCRIPTION("PCMCIA support for Voipac PXA270");
MODULE_ALIAS("platform:pxa2xx-pcmcia");
MODULE_LICENSE("GPL");
Commit	Line	Data
d2912cb1	1	// SPDX-License-Identifier: GPL-2.0-only
addff0fa MV	2	/*
	3	* linux/drivers/pcmcia/pxa2xx_vpac270.c
	4	*
	5	* Driver for Voipac PXA270 PCMCIA and CF sockets
	6	*
9ed3fbf1	7	* Copyright (C) 2010-2011 Marek Vasut <marek.vasut@gmail.com>
addff0fa MV	8	*/
addff0fa MV	9
158f1e95	10	#include <linux/gpio.h>
addff0fa MV	11	#include <linux/module.h>
	12	#include <linux/platform_device.h>
	13
	14	#include <asm/mach-types.h>
	15
addff0fa MV	16	#include <mach/vpac270.h>
	17
	18	#include "soc_common.h"
	19
e27af7ed	20	static struct gpio vpac270_pcmcia_gpios[] = {
e27af7ed MV	21	{ GPIO107_VPAC270_PCMCIA_PPEN, GPIOF_INIT_LOW, "PCMCIA PPEN" },
	22	{ GPIO11_VPAC270_PCMCIA_RESET, GPIOF_INIT_LOW, "PCMCIA Reset" },
	23	};
	24
	25	static struct gpio vpac270_cf_gpios[] = {
e27af7ed MV	26	{ GPIO16_VPAC270_CF_RESET, GPIOF_INIT_LOW, "CF Reset" },
	27	};
	28
addff0fa MV	29	static int vpac270_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
	30	{
	31	int ret;
	32
	33	if (skt->nr == 0) {
e27af7ed MV	34	ret = gpio_request_array(vpac270_pcmcia_gpios,
e27af7ed MV	35	ARRAY_SIZE(vpac270_pcmcia_gpios));
addff0fa	36
a9bb5a4b RK	37	skt->stat[SOC_STAT_CD].gpio = GPIO84_VPAC270_PCMCIA_CD;
	38	skt->stat[SOC_STAT_CD].name = "PCMCIA CD";
	39	skt->stat[SOC_STAT_RDY].gpio = GPIO35_VPAC270_PCMCIA_RDY;
	40	skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready";
addff0fa	41	} else {
e27af7ed MV	42	ret = gpio_request_array(vpac270_cf_gpios,
e27af7ed MV	43	ARRAY_SIZE(vpac270_cf_gpios));
addff0fa	44
a9bb5a4b RK	45	skt->stat[SOC_STAT_CD].gpio = GPIO17_VPAC270_CF_CD;
	46	skt->stat[SOC_STAT_CD].name = "CF CD";
	47	skt->stat[SOC_STAT_RDY].gpio = GPIO12_VPAC270_CF_RDY;
	48	skt->stat[SOC_STAT_RDY].name = "CF Ready";
addff0fa	49	}
e27af7ed MV	50
e27af7ed MV	51	return ret;
addff0fa MV	52	}
	53
	54	static void vpac270_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
	55	{
e27af7ed	56	if (skt->nr == 0)
512b7938	57	gpio_free_array(vpac270_pcmcia_gpios,
e27af7ed MV	58	ARRAY_SIZE(vpac270_pcmcia_gpios));
e27af7ed MV	59	else
512b7938	60	gpio_free_array(vpac270_cf_gpios,
e27af7ed	61	ARRAY_SIZE(vpac270_cf_gpios));
addff0fa MV	62	}
	63
	64	static void vpac270_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
	65	struct pcmcia_state *state)
	66	{
addff0fa MV	67	state->vs_3v = 1;
	68	state->vs_Xv = 0;
	69	}
	70
	71	static int
	72	vpac270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
	73	const socket_state_t *state)
	74	{
	75	if (skt->nr == 0) {
	76	gpio_set_value(GPIO11_VPAC270_PCMCIA_RESET,
	77	(state->flags & SS_RESET));
	78	gpio_set_value(GPIO107_VPAC270_PCMCIA_PPEN,
	79	!(state->Vcc == 33 \|\| state->Vcc == 50));
	80	} else {
	81	gpio_set_value(GPIO16_VPAC270_CF_RESET,
	82	(state->flags & SS_RESET));
	83	}
	84
	85	return 0;
	86	}
	87
addff0fa MV	88	static struct pcmcia_low_level vpac270_pcmcia_ops = {
	89	.owner = THIS_MODULE,
	90
	91	.first = 0,
	92	.nr = 2,
	93
	94	.hw_init = vpac270_pcmcia_hw_init,
	95	.hw_shutdown = vpac270_pcmcia_hw_shutdown,
	96
	97	.socket_state = vpac270_pcmcia_socket_state,
	98	.configure_socket = vpac270_pcmcia_configure_socket,
addff0fa MV	99	};
	100
	101	static struct platform_device *vpac270_pcmcia_device;
	102
	103	static int __init vpac270_pcmcia_init(void)
	104	{
	105	int ret;
	106
	107	if (!machine_is_vpac270())
	108	return -ENODEV;
	109
	110	vpac270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
	111	if (!vpac270_pcmcia_device)
	112	return -ENOMEM;
	113
	114	ret = platform_device_add_data(vpac270_pcmcia_device,
	115	&vpac270_pcmcia_ops, sizeof(vpac270_pcmcia_ops));
	116
	117	if (!ret)
	118	ret = platform_device_add(vpac270_pcmcia_device);
	119
	120	if (ret)
	121	platform_device_put(vpac270_pcmcia_device);
	122
	123	return ret;
	124	}
	125
	126	static void __exit vpac270_pcmcia_exit(void)
	127	{
	128	platform_device_unregister(vpac270_pcmcia_device);
	129	}
	130
	131	module_init(vpac270_pcmcia_init);
	132	module_exit(vpac270_pcmcia_exit);
	133
	134	MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
	135	MODULE_DESCRIPTION("PCMCIA support for Voipac PXA270");
	136	MODULE_ALIAS("platform:pxa2xx-pcmcia");
	137	MODULE_LICENSE("GPL");