]> git.ipfire.org Git - people/ms/linux.git/blame - drivers/ata/ahci_platform.c
Merge tag 'devicetree-fixes-for-4.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel...
[people/ms/linux.git] / drivers / ata / ahci_platform.c
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1/*
2 * AHCI SATA platform driver
3 *
4 * Copyright 2004-2005 Red Hat, Inc.
5 * Jeff Garzik <jgarzik@pobox.com>
6 * Copyright 2010 MontaVista Software, LLC.
7 * Anton Vorontsov <avorontsov@ru.mvista.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2, or (at your option)
12 * any later version.
13 */
14
15#include <linux/kernel.h>
16#include <linux/module.h>
18c25ff4 17#include <linux/pm.h>
1c2a49f6 18#include <linux/device.h>
a1a205df 19#include <linux/of_device.h>
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20#include <linux/platform_device.h>
21#include <linux/libata.h>
22#include <linux/ahci_platform.h>
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23#include <linux/acpi.h>
24#include <linux/pci_ids.h>
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25#include "ahci.h"
26
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27#define DRV_NAME "ahci"
28
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29static const struct ata_port_info ahci_port_info = {
30 .flags = AHCI_FLAG_COMMON,
31 .pio_mask = ATA_PIO4,
32 .udma_mask = ATA_UDMA6,
33 .port_ops = &ahci_platform_ops,
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34};
35
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36static struct scsi_host_template ahci_platform_sht = {
37 AHCI_SHT(DRV_NAME),
38};
39
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40static int ahci_probe(struct platform_device *pdev)
41{
42 struct device *dev = &pdev->dev;
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43 struct ahci_host_priv *hpriv;
44 int rc;
45
46 hpriv = ahci_platform_get_resources(pdev);
47 if (IS_ERR(hpriv))
48 return PTR_ERR(hpriv);
49
50 rc = ahci_platform_enable_resources(hpriv);
51 if (rc)
52 return rc;
53
a1a205df 54 if (of_device_is_compatible(dev->of_node, "hisilicon,hisi-ahci"))
725c7b57 55 hpriv->flags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ;
a1a205df 56
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57 rc = ahci_platform_init_host(pdev, hpriv, &ahci_port_info,
58 &ahci_platform_sht);
1c2a49f6 59 if (rc)
515d9b2c 60 goto disable_resources;
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61
62 return 0;
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63disable_resources:
64 ahci_platform_disable_resources(hpriv);
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65 return rc;
66}
67
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68static SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_platform_suspend,
69 ahci_platform_resume);
18c25ff4 70
02aac316 71static const struct of_device_id ahci_of_match[] = {
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72 { .compatible = "generic-ahci", },
73 /* Keep the following compatibles for device tree compatibility */
5f098a3e 74 { .compatible = "snps,spear-ahci", },
1e8f5f76 75 { .compatible = "snps,exynos5440-ahci", },
2435dcb9 76 { .compatible = "ibm,476gtr-ahci", },
c4311471 77 { .compatible = "snps,dwc-ahci", },
a1a205df 78 { .compatible = "hisilicon,hisi-ahci", },
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79 {},
80};
81MODULE_DEVICE_TABLE(of, ahci_of_match);
82
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83static const struct acpi_device_id ahci_acpi_match[] = {
84 { ACPI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff) },
85 {},
86};
87MODULE_DEVICE_TABLE(acpi, ahci_acpi_match);
88
1c2a49f6 89static struct platform_driver ahci_driver = {
941c77fd 90 .probe = ahci_probe,
83291d65 91 .remove = ata_platform_remove_one,
1c2a49f6 92 .driver = {
018d5ef2 93 .name = DRV_NAME,
02aac316 94 .of_match_table = ahci_of_match,
2051e924 95 .acpi_match_table = ahci_acpi_match,
17ab594f 96 .pm = &ahci_pm_ops,
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97 },
98};
9a99e476 99module_platform_driver(ahci_driver);
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100
101MODULE_DESCRIPTION("AHCI SATA platform driver");
102MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>");
103MODULE_LICENSE("GPL");
104MODULE_ALIAS("platform:ahci");