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fc75f21645
Here are a small set of changes for 6.5-rc1 for some driver core
changes. Included in here are:
- device property cleanups to make it easier to write "agnostic"
drivers when regards to the firmware layer underneath them (DT vs.
ACPI)
- debugfs documentation updates
- devres additions
- sysfs documentation and changes to handle empty directory creation
logic better
- tiny kernfs optimizations
- other tiny changes
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here are a small set of changes for 6.5-rc1 for some driver core
changes. Included in here are:
- device property cleanups to make it easier to write "agnostic"
drivers when regards to the firmware layer underneath them (DT vs.
ACPI)
- debugfs documentation updates
- devres additions
- sysfs documentation and changes to handle empty directory creation
logic better
- tiny kernfs optimizations
- other tiny changes
All of these have been in linux-next for a while with no reported
problems"
* tag 'driver-core-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
sysfs: Skip empty folders creation
sysfs: Improve readability by following the kernel coding style
drivers: fwnode: fix fwnode_irq_get[_byname]()
ata: ahci_platform: Make code agnostic to OF/ACPI
device property: Implement device_is_compatible()
ACPI: Move ACPI_DEVICE_CLASS() to mod_devicetable.h
base/node: Use 'property' to identify an access parameter
driver core: device.h: add some missing kerneldocs
kernfs: fix missing kernfs_idr_lock to remove an ID from the IDR
isa: Remove unnecessary checks
MAINTAINERS: add entry for auxiliary bus
debugfs: Correct the 'debugfs_create_str' docs
serial: qcom_geni: Comment use of devm_krealloc rather than devm_krealloc_array
iio: adc: Use devm_krealloc_array
hwmon: pmbus: Use devm_krealloc_array
113 lines
2.9 KiB
C
113 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* AHCI SATA platform driver
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*
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* Copyright 2004-2005 Red Hat, Inc.
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* Jeff Garzik <jgarzik@pobox.com>
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* Copyright 2010 MontaVista Software, LLC.
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* Anton Vorontsov <avorontsov@ru.mvista.com>
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*/
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#include <linux/kernel.h>
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#include <linux/mod_devicetable.h>
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#include <linux/module.h>
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#include <linux/pm.h>
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#include <linux/device.h>
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#include <linux/platform_device.h>
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#include <linux/property.h>
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#include <linux/libata.h>
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#include <linux/ahci_platform.h>
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#include <linux/pci_ids.h>
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#include "ahci.h"
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#define DRV_NAME "ahci"
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static const struct ata_port_info ahci_port_info = {
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.flags = AHCI_FLAG_COMMON,
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.pio_mask = ATA_PIO4,
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.udma_mask = ATA_UDMA6,
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.port_ops = &ahci_platform_ops,
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};
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static const struct ata_port_info ahci_port_info_nolpm = {
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.flags = AHCI_FLAG_COMMON | ATA_FLAG_NO_LPM,
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.pio_mask = ATA_PIO4,
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.udma_mask = ATA_UDMA6,
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.port_ops = &ahci_platform_ops,
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};
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static const struct scsi_host_template ahci_platform_sht = {
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AHCI_SHT(DRV_NAME),
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};
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static int ahci_probe(struct platform_device *pdev)
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{
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struct device *dev = &pdev->dev;
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struct ahci_host_priv *hpriv;
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const struct ata_port_info *port;
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int rc;
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hpriv = ahci_platform_get_resources(pdev,
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AHCI_PLATFORM_GET_RESETS);
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if (IS_ERR(hpriv))
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return PTR_ERR(hpriv);
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rc = ahci_platform_enable_resources(hpriv);
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if (rc)
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return rc;
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if (device_is_compatible(dev, "hisilicon,hisi-ahci"))
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hpriv->flags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ;
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port = device_get_match_data(dev);
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if (!port)
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port = &ahci_port_info;
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rc = ahci_platform_init_host(pdev, hpriv, port,
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&ahci_platform_sht);
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if (rc)
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goto disable_resources;
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return 0;
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disable_resources:
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ahci_platform_disable_resources(hpriv);
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return rc;
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}
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static SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_platform_suspend,
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ahci_platform_resume);
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static const struct of_device_id ahci_of_match[] = {
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{ .compatible = "generic-ahci", },
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/* Keep the following compatibles for device tree compatibility */
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{ .compatible = "ibm,476gtr-ahci", },
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{ .compatible = "hisilicon,hisi-ahci", },
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{ .compatible = "cavium,octeon-7130-ahci", },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, ahci_of_match);
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static const struct acpi_device_id ahci_acpi_match[] = {
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{ "APMC0D33", (unsigned long)&ahci_port_info_nolpm },
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{ ACPI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff) },
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{},
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};
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MODULE_DEVICE_TABLE(acpi, ahci_acpi_match);
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static struct platform_driver ahci_driver = {
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.probe = ahci_probe,
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.remove_new = ata_platform_remove_one,
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.shutdown = ahci_platform_shutdown,
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.driver = {
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.name = DRV_NAME,
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.of_match_table = ahci_of_match,
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.acpi_match_table = ahci_acpi_match,
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.pm = &ahci_pm_ops,
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},
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};
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module_platform_driver(ahci_driver);
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MODULE_DESCRIPTION("AHCI SATA platform driver");
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MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:ahci");
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