linux-imx

/*

 * drivers/ata/pata_palmld.c

 *

 * Driver for IDE channel in Palm LifeDrive

 *

 * Based on research of:

 *      Alex Osborne <ato@meshy.org>

 *

 * Rewrite for mainline:

 *      Marek Vasut <marek.vasut@gmail.com>

 *

 * Rewritten version based on pata_ixp4xx_cf.c:

 * ixp4xx PATA/Compact Flash driver

 * Copyright (C) 2006-07 Tower Technologies

 * Author: Alessandro Zummo <a.zummo@towertech.it>

 *

 * 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/kernel.h>

#include <linux/module.h>

#include <linux/libata.h>

#include <linux/irq.h>

#include <linux/platform_device.h>

#include <linux/delay.h>

#include <linux/gpio/consumer.h>

​

#include <scsi/scsi_host.h>

#include <mach/palmld.h>

​

#define DRV_NAME "pata_palmld"

​

struct palmld_pata {

    struct ata_host *host;

    struct gpio_desc *power;

    struct gpio_desc *reset;

};

​

static struct scsi_host_template palmld_sht = {

    ATA_PIO_SHT(DRV_NAME),

};

​

static struct ata_port_operations palmld_port_ops = {

    .inherits       = &ata_sff_port_ops,

    .sff_data_xfer      = ata_sff_data_xfer32,

    .cable_detect       = ata_cable_40wire,

};

​

static int palmld_pata_probe(struct platform_device *pdev)

{

    struct palmld_pata *lda;

    struct ata_port *ap;

    void __iomem *mem;

    struct device *dev = &pdev->dev;

    int ret;

​

    lda = devm_kzalloc(dev, sizeof(*lda), GFP_KERNEL);

    if (!lda)

        return -ENOMEM;

​