linux-imx

/*

 * linux/drivers/pcmcia/pxa2xx_mainstone.c

 *

 * Mainstone PCMCIA specific routines.

 *

 * Created: May 12, 2004

 * Author:  Nicolas Pitre

 * Copyright:   MontaVista Software Inc.

 *

 * 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/gpio/consumer.h>

#include <linux/module.h>

#include <linux/init.h>

#include <linux/interrupt.h>

#include <linux/kernel.h>

#include <linux/errno.h>

#include <linux/platform_device.h>

​

#include <pcmcia/ss.h>

​

#include <asm/mach-types.h>

​

#include "soc_common.h"

#include "max1600.h"

​

static int mst_pcmcia_hw_init(struct soc_pcmcia_socket *skt)

{

    struct device *dev = skt->socket.dev.parent;

    struct max1600 *m;

    int ret;

​

    skt->stat[SOC_STAT_CD].name = skt->nr ? "bdetect" : "adetect";

    skt->stat[SOC_STAT_BVD1].name = skt->nr ? "bbvd1" : "abvd1";

    skt->stat[SOC_STAT_BVD2].name = skt->nr ? "bbvd2" : "abvd2";

    skt->stat[SOC_STAT_RDY].name = skt->nr ? "bready" : "aready";

    skt->stat[SOC_STAT_VS1].name = skt->nr ? "bvs1" : "avs1";

    skt->stat[SOC_STAT_VS2].name = skt->nr ? "bvs2" : "avs2";

​

    skt->gpio_reset = devm_gpiod_get(dev, skt->nr ? "breset" : "areset",

                     GPIOD_OUT_HIGH);

    if (IS_ERR(skt->gpio_reset))

        return PTR_ERR(skt->gpio_reset);

​

    ret = max1600_init(dev, &m, skt->nr ? MAX1600_CHAN_B : MAX1600_CHAN_A,

               MAX1600_CODE_HIGH);

    if (ret)

        return ret;

​

    skt->driver_data = m;

​

    return soc_pcmcia_request_gpiods(skt);

}

​

static unsigned int mst_pcmcia_bvd1_status[2];

​

static void mst_pcmcia_socket_state(struct soc_pcmcia_socket *skt,

                    struct pcmcia_state *state)

{

    unsigned int flip = mst_pcmcia_bvd1_status[skt->nr] ^ state->bvd1;

​