License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 14:07:57 +00:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2012-09-04 08:55:58 +00:00
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/*
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2014-12-30 06:02:28 +00:00
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* USB PHY defines
|
2012-09-04 08:55:58 +00:00
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*
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* These APIs may be used between USB controllers. USB device drivers
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* (for either host or peripheral roles) don't use these calls; they
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* continue to use just usb_device and usb_gadget.
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*/
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#ifndef __LINUX_USB_PHY_H
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#define __LINUX_USB_PHY_H
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2017-05-05 06:12:24 +00:00
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#include <linux/extcon.h>
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2012-09-04 08:55:58 +00:00
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#include <linux/notifier.h>
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2012-11-09 01:44:44 +00:00
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#include <linux/usb.h>
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2017-08-15 11:07:54 +00:00
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#include <uapi/linux/usb/charger.h>
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2012-09-04 08:55:58 +00:00
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2013-06-13 14:59:55 +00:00
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enum usb_phy_interface {
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USBPHY_INTERFACE_MODE_UNKNOWN,
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USBPHY_INTERFACE_MODE_UTMI,
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USBPHY_INTERFACE_MODE_UTMIW,
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USBPHY_INTERFACE_MODE_ULPI,
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USBPHY_INTERFACE_MODE_SERIAL,
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USBPHY_INTERFACE_MODE_HSIC,
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};
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2012-09-04 08:55:58 +00:00
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enum usb_phy_events {
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USB_EVENT_NONE, /* no events or cable disconnected */
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USB_EVENT_VBUS, /* vbus valid event */
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USB_EVENT_ID, /* id was grounded */
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USB_EVENT_CHARGER, /* usb dedicated charger */
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USB_EVENT_ENUMERATED, /* gadget driver enumerated */
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};
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/* associate a type with PHY */
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enum usb_phy_type {
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USB_PHY_TYPE_UNDEFINED,
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USB_PHY_TYPE_USB2,
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USB_PHY_TYPE_USB3,
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};
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2012-09-06 05:12:15 +00:00
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/* OTG defines lots of enumeration states before device reset */
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enum usb_otg_state {
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OTG_STATE_UNDEFINED = 0,
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/* single-role peripheral, and dual-role default-b */
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OTG_STATE_B_IDLE,
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OTG_STATE_B_SRP_INIT,
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OTG_STATE_B_PERIPHERAL,
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/* extra dual-role default-b states */
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OTG_STATE_B_WAIT_ACON,
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OTG_STATE_B_HOST,
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/* dual-role default-a */
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OTG_STATE_A_IDLE,
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OTG_STATE_A_WAIT_VRISE,
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OTG_STATE_A_WAIT_BCON,
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OTG_STATE_A_HOST,
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OTG_STATE_A_SUSPEND,
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OTG_STATE_A_PERIPHERAL,
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OTG_STATE_A_WAIT_VFALL,
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OTG_STATE_A_VBUS_ERR,
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};
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2012-09-04 08:55:58 +00:00
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struct usb_phy;
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struct usb_otg;
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2015-09-22 07:31:34 +00:00
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/* for phys connected thru an ULPI interface, the user must
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2012-09-04 08:55:58 +00:00
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* provide access ops
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*/
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struct usb_phy_io_ops {
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int (*read)(struct usb_phy *x, u32 reg);
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int (*write)(struct usb_phy *x, u32 val, u32 reg);
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};
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2017-08-15 11:07:54 +00:00
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struct usb_charger_current {
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unsigned int sdp_min;
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unsigned int sdp_max;
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unsigned int dcp_min;
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unsigned int dcp_max;
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unsigned int cdp_min;
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unsigned int cdp_max;
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unsigned int aca_min;
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unsigned int aca_max;
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};
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2012-09-04 08:55:58 +00:00
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struct usb_phy {
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struct device *dev;
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const char *label;
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unsigned int flags;
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enum usb_phy_type type;
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enum usb_phy_events last_event;
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struct usb_otg *otg;
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struct device *io_dev;
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struct usb_phy_io_ops *io_ops;
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void __iomem *io_priv;
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2017-05-05 06:12:24 +00:00
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/* to support extcon device */
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struct extcon_dev *edev;
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struct extcon_dev *id_edev;
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struct notifier_block vbus_nb;
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struct notifier_block id_nb;
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2017-08-15 11:07:54 +00:00
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struct notifier_block type_nb;
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/* Support USB charger */
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enum usb_charger_type chg_type;
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enum usb_charger_state chg_state;
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struct usb_charger_current chg_cur;
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struct work_struct chg_work;
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2017-05-05 06:12:24 +00:00
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2012-09-04 08:55:58 +00:00
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/* for notification of usb_phy_events */
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struct atomic_notifier_head notifier;
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/* to pass extra port status to the root hub */
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u16 port_status;
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u16 port_change;
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2015-09-22 07:31:34 +00:00
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/* to support controllers that have multiple phys */
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2012-09-04 08:55:58 +00:00
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struct list_head head;
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2015-09-22 07:31:34 +00:00
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/* initialize/shutdown the phy */
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2012-09-04 08:55:58 +00:00
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int (*init)(struct usb_phy *x);
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void (*shutdown)(struct usb_phy *x);
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2013-03-08 11:22:58 +00:00
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/* enable/disable VBUS */
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int (*set_vbus)(struct usb_phy *x, int on);
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2012-09-04 08:55:58 +00:00
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/* effective for B devices, ignored for A-peripheral */
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int (*set_power)(struct usb_phy *x,
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unsigned mA);
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2015-09-22 07:31:34 +00:00
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/* Set phy into suspend mode */
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2012-09-04 08:55:58 +00:00
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int (*set_suspend)(struct usb_phy *x,
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int suspend);
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2014-02-24 02:21:01 +00:00
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/*
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* Set wakeup enable for PHY, in that case, the PHY can be
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* woken up from suspend status due to external events,
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* like vbus change, dp/dm change and id.
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*/
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int (*set_wakeup)(struct usb_phy *x, bool enabled);
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2012-09-04 08:55:58 +00:00
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/* notify phy connect status change */
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2012-11-09 01:44:44 +00:00
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int (*notify_connect)(struct usb_phy *x,
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enum usb_device_speed speed);
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int (*notify_disconnect)(struct usb_phy *x,
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enum usb_device_speed speed);
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2017-08-15 11:07:54 +00:00
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/*
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* Charger detection method can be implemented if you need to
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* manually detect the charger type.
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*/
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enum usb_charger_type (*charger_detect)(struct usb_phy *x);
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2012-09-04 08:55:58 +00:00
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};
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2013-01-25 02:33:21 +00:00
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/**
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* struct usb_phy_bind - represent the binding for the phy
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* @dev_name: the device name of the device that will bind to the phy
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* @phy_dev_name: the device name of the phy
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* @index: used if a single controller uses multiple phys
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* @phy: reference to the phy
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* @list: to maintain a linked list of the binding information
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*/
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struct usb_phy_bind {
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const char *dev_name;
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const char *phy_dev_name;
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u8 index;
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struct usb_phy *phy;
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struct list_head list;
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};
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2012-09-04 08:55:58 +00:00
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/* for board-specific init logic */
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extern int usb_add_phy(struct usb_phy *, enum usb_phy_type type);
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2013-01-25 02:33:22 +00:00
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extern int usb_add_phy_dev(struct usb_phy *);
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2012-09-04 08:55:58 +00:00
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extern void usb_remove_phy(struct usb_phy *);
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/* helpers for direct access thru low-level io interface */
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static inline int usb_phy_io_read(struct usb_phy *x, u32 reg)
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{
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2013-06-30 12:27:26 +00:00
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if (x && x->io_ops && x->io_ops->read)
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2012-09-04 08:55:58 +00:00
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return x->io_ops->read(x, reg);
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return -EINVAL;
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}
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static inline int usb_phy_io_write(struct usb_phy *x, u32 val, u32 reg)
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{
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2013-06-30 12:27:26 +00:00
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if (x && x->io_ops && x->io_ops->write)
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2012-09-04 08:55:58 +00:00
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return x->io_ops->write(x, val, reg);
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return -EINVAL;
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}
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static inline int
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usb_phy_init(struct usb_phy *x)
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{
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2013-06-30 12:27:26 +00:00
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if (x && x->init)
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2012-09-04 08:55:58 +00:00
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return x->init(x);
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return 0;
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}
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static inline void
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usb_phy_shutdown(struct usb_phy *x)
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{
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2013-06-30 12:27:26 +00:00
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if (x && x->shutdown)
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2012-09-04 08:55:58 +00:00
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x->shutdown(x);
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}
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2013-03-08 11:22:58 +00:00
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static inline int
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usb_phy_vbus_on(struct usb_phy *x)
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{
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2013-06-30 12:27:26 +00:00
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if (!x || !x->set_vbus)
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2013-03-08 11:22:58 +00:00
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return 0;
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return x->set_vbus(x, true);
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}
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static inline int
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usb_phy_vbus_off(struct usb_phy *x)
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{
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2013-06-30 12:27:26 +00:00
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if (!x || !x->set_vbus)
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2013-03-08 11:22:58 +00:00
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return 0;
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return x->set_vbus(x, false);
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}
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2012-09-04 08:55:58 +00:00
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/* for usb host and peripheral controller drivers */
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2013-03-07 09:13:43 +00:00
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#if IS_ENABLED(CONFIG_USB_PHY)
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2012-09-04 08:55:58 +00:00
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extern struct usb_phy *usb_get_phy(enum usb_phy_type type);
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extern struct usb_phy *devm_usb_get_phy(struct device *dev,
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enum usb_phy_type type);
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2013-01-25 02:33:22 +00:00
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extern struct usb_phy *usb_get_phy_dev(struct device *dev, u8 index);
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extern struct usb_phy *devm_usb_get_phy_dev(struct device *dev, u8 index);
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2013-01-25 02:33:25 +00:00
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extern struct usb_phy *devm_usb_get_phy_by_phandle(struct device *dev,
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const char *phandle, u8 index);
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2015-03-22 22:52:48 +00:00
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extern struct usb_phy *devm_usb_get_phy_by_node(struct device *dev,
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struct device_node *node, struct notifier_block *nb);
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2012-09-04 08:55:58 +00:00
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extern void usb_put_phy(struct usb_phy *);
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extern void devm_usb_put_phy(struct device *dev, struct usb_phy *x);
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2013-01-25 02:33:21 +00:00
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extern int usb_bind_phy(const char *dev_name, u8 index,
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const char *phy_dev_name);
|
2014-11-21 06:01:20 +00:00
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extern void usb_phy_set_event(struct usb_phy *x, unsigned long event);
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2017-08-15 11:07:54 +00:00
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extern void usb_phy_set_charger_current(struct usb_phy *usb_phy,
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unsigned int mA);
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extern void usb_phy_get_charger_current(struct usb_phy *usb_phy,
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unsigned int *min, unsigned int *max);
|
|
|
|
extern void usb_phy_set_charger_state(struct usb_phy *usb_phy,
|
|
|
|
enum usb_charger_state state);
|
2012-09-04 08:55:58 +00:00
|
|
|
#else
|
|
|
|
static inline struct usb_phy *usb_get_phy(enum usb_phy_type type)
|
|
|
|
{
|
2013-03-14 15:59:06 +00:00
|
|
|
return ERR_PTR(-ENXIO);
|
2012-09-04 08:55:58 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline struct usb_phy *devm_usb_get_phy(struct device *dev,
|
|
|
|
enum usb_phy_type type)
|
|
|
|
{
|
2013-03-14 15:59:06 +00:00
|
|
|
return ERR_PTR(-ENXIO);
|
2012-09-04 08:55:58 +00:00
|
|
|
}
|
|
|
|
|
2013-01-25 02:33:22 +00:00
|
|
|
static inline struct usb_phy *usb_get_phy_dev(struct device *dev, u8 index)
|
|
|
|
{
|
2013-03-14 15:59:06 +00:00
|
|
|
return ERR_PTR(-ENXIO);
|
2013-01-25 02:33:22 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline struct usb_phy *devm_usb_get_phy_dev(struct device *dev, u8 index)
|
|
|
|
{
|
2013-03-14 15:59:06 +00:00
|
|
|
return ERR_PTR(-ENXIO);
|
2013-01-25 02:33:22 +00:00
|
|
|
}
|
|
|
|
|
2013-01-25 02:33:25 +00:00
|
|
|
static inline struct usb_phy *devm_usb_get_phy_by_phandle(struct device *dev,
|
|
|
|
const char *phandle, u8 index)
|
|
|
|
{
|
2013-03-14 15:59:06 +00:00
|
|
|
return ERR_PTR(-ENXIO);
|
2013-01-25 02:33:25 +00:00
|
|
|
}
|
|
|
|
|
2015-05-28 14:08:02 +00:00
|
|
|
static inline struct usb_phy *devm_usb_get_phy_by_node(struct device *dev,
|
|
|
|
struct device_node *node, struct notifier_block *nb)
|
|
|
|
{
|
|
|
|
return ERR_PTR(-ENXIO);
|
|
|
|
}
|
|
|
|
|
2012-09-04 08:55:58 +00:00
|
|
|
static inline void usb_put_phy(struct usb_phy *x)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void devm_usb_put_phy(struct device *dev, struct usb_phy *x)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
2013-01-25 02:33:21 +00:00
|
|
|
static inline int usb_bind_phy(const char *dev_name, u8 index,
|
|
|
|
const char *phy_dev_name)
|
|
|
|
{
|
|
|
|
return -EOPNOTSUPP;
|
|
|
|
}
|
2014-11-21 06:01:20 +00:00
|
|
|
|
|
|
|
static inline void usb_phy_set_event(struct usb_phy *x, unsigned long event)
|
|
|
|
{
|
|
|
|
}
|
2017-08-15 11:07:54 +00:00
|
|
|
|
|
|
|
static inline void usb_phy_set_charger_current(struct usb_phy *usb_phy,
|
|
|
|
unsigned int mA)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void usb_phy_get_charger_current(struct usb_phy *usb_phy,
|
|
|
|
unsigned int *min,
|
|
|
|
unsigned int *max)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void usb_phy_set_charger_state(struct usb_phy *usb_phy,
|
|
|
|
enum usb_charger_state state)
|
|
|
|
{
|
|
|
|
}
|
2012-09-04 08:55:58 +00:00
|
|
|
#endif
|
|
|
|
|
|
|
|
static inline int
|
|
|
|
usb_phy_set_power(struct usb_phy *x, unsigned mA)
|
|
|
|
{
|
2017-08-28 11:02:41 +00:00
|
|
|
if (!x)
|
|
|
|
return 0;
|
|
|
|
|
2017-08-15 11:07:54 +00:00
|
|
|
usb_phy_set_charger_current(x, mA);
|
|
|
|
|
2017-08-28 11:02:41 +00:00
|
|
|
if (x->set_power)
|
2012-09-04 08:55:58 +00:00
|
|
|
return x->set_power(x, mA);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Context: can sleep */
|
|
|
|
static inline int
|
|
|
|
usb_phy_set_suspend(struct usb_phy *x, int suspend)
|
|
|
|
{
|
2013-06-30 12:27:26 +00:00
|
|
|
if (x && x->set_suspend != NULL)
|
2012-09-04 08:55:58 +00:00
|
|
|
return x->set_suspend(x, suspend);
|
|
|
|
else
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2014-02-24 02:21:01 +00:00
|
|
|
static inline int
|
|
|
|
usb_phy_set_wakeup(struct usb_phy *x, bool enabled)
|
|
|
|
{
|
|
|
|
if (x && x->set_wakeup)
|
|
|
|
return x->set_wakeup(x, enabled);
|
|
|
|
else
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-09-04 08:55:58 +00:00
|
|
|
static inline int
|
2012-11-09 01:44:44 +00:00
|
|
|
usb_phy_notify_connect(struct usb_phy *x, enum usb_device_speed speed)
|
2012-09-04 08:55:58 +00:00
|
|
|
{
|
2013-06-30 12:27:26 +00:00
|
|
|
if (x && x->notify_connect)
|
2012-11-09 01:44:44 +00:00
|
|
|
return x->notify_connect(x, speed);
|
2012-09-04 08:55:58 +00:00
|
|
|
else
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline int
|
2012-11-09 01:44:44 +00:00
|
|
|
usb_phy_notify_disconnect(struct usb_phy *x, enum usb_device_speed speed)
|
2012-09-04 08:55:58 +00:00
|
|
|
{
|
2013-06-30 12:27:26 +00:00
|
|
|
if (x && x->notify_disconnect)
|
2012-11-09 01:44:44 +00:00
|
|
|
return x->notify_disconnect(x, speed);
|
2012-09-04 08:55:58 +00:00
|
|
|
else
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* notifiers */
|
|
|
|
static inline int
|
|
|
|
usb_register_notifier(struct usb_phy *x, struct notifier_block *nb)
|
|
|
|
{
|
|
|
|
return atomic_notifier_chain_register(&x->notifier, nb);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void
|
|
|
|
usb_unregister_notifier(struct usb_phy *x, struct notifier_block *nb)
|
|
|
|
{
|
|
|
|
atomic_notifier_chain_unregister(&x->notifier, nb);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline const char *usb_phy_type_string(enum usb_phy_type type)
|
|
|
|
{
|
|
|
|
switch (type) {
|
|
|
|
case USB_PHY_TYPE_USB2:
|
|
|
|
return "USB2 PHY";
|
|
|
|
case USB_PHY_TYPE_USB3:
|
|
|
|
return "USB3 PHY";
|
|
|
|
default:
|
|
|
|
return "UNKNOWN PHY TYPE";
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif /* __LINUX_USB_PHY_H */
|