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All these files have been updated in the commit given in the Fixes: tag
below.
When the SPDX-License-Identifier: has been added, the corresponding text at
the beginning of the files has not been deleted.
All these texts are about GPL-2.0, with different variation in the wording.
Remove these now useless lines to save some LoC.
Fixes: 5fd54ace4721 ("USB: add SPDX identifiers to all remaining files in drivers/usb/")
Signed-off-by: Christophe JAILLET <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Clean up the USB device-node helper that is used to look up a device
node given a parent hub device and a port number. Also pass in a struct
usb_device as first argument to provide some type checking.
Give the helper the more descriptive name usb_of_get_device_node(),
which matches the new usb_of_get_interface_node() helper that is used to
look up a second type of of child node from a USB device.
Note that the terms "device node" and "interface node" are defined and
used by the OF Recommended Practice for USB.
Signed-off-by: Johan Hovold <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Add OF device-tree support for USB interfaces.
USB "interface nodes" are children of USB "device nodes" and are
identified by an interface number and a configuration value:
&usb1 { /* host controller */
dev1: device@1 { /* device at port 1 */
compatible = "usb1234,5678";
reg = <1>;
#address-cells = <2>;
#size-cells = <0>;
interface@0,2 { /* interface 0 of configuration 2 */
compatible = "usbif1234,5678.config2.0";
reg = <0 2>;
};
};
};
The configuration component is not included in the textual
representation of an interface-node unit address for configuration 1:
&dev1 {
interface@0 { /* interface 0 of configuration 1 */
compatible = "usbif1234,5678.config1.0";
reg = <0 1>;
};
};
When a USB device of class 0 or 9 (hub) has only a single configuration
with a single interface, a special case "combined node" is used instead
of a device node with an interface node:
&usb1 {
device@2 {
compatible = "usb1234,abcd";
reg = <2>;
};
};
Combined nodes are shared by the two device structures representing the
USB device and its interface in the kernel's device model.
Note that, as for device nodes, the compatible strings for interface
nodes are currently not used.
For more details see "Open Firmware Recommended Practice: Universal
Serial Bus Version 1" and the binding documentation.
Signed-off-by: Johan Hovold <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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It's good to have SPDX identifiers in all files to make it easier to
audit the kernel tree for correct licenses.
Update the drivers/usb/ and include/linux/usb* files with the correct
SPDX license identifier based on the license text in the file itself.
The SPDX identifier is a legally binding shorthand, which can be used
instead of the full boiler plate text.
This work is based on a script and data from Thomas Gleixner, Philippe
Ombredanne, and Kate Stewart.
Cc: Thomas Gleixner <[email protected]>
Cc: Kate Stewart <[email protected]>
Cc: Philippe Ombredanne <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Acked-by: Felipe Balbi <[email protected]>
Acked-by: Johan Hovold <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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EHCI controllers will have a companion controller. However, on platform
bus, there was difficult to bind them in previous code. So, this
patch adds helper functions to bind them using a "companion" property.
Signed-off-by: Yoshihiro Shimoda <[email protected]>
Acked-by: Rob Herring <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Some SoCs have a single phy-hw-block with multiple phys, this is
modelled by a single phy dts node, so we end up with multiple
controller nodes with a phys property pointing to the phy-node
of the otg-phy.
Only one of these controllers typically is an otg controller, yet we
were checking the first controller who uses a phy from the block and
then end up looking for a dr_mode property in e.g. the ehci controller.
This commit fixes this by adding an arg0 parameter to
of_usb_get_dr_mode_by_phy and make of_usb_get_dr_mode_by_phy
check that this matches the phandle args[0] value when looking for
the otg controller.
Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
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Although most of USB devices are hot-plug's, there are still some devices
are hard wired on the board, eg, for HSIC and SSIC interface USB devices.
If these kinds of USB devices are multiple functions, and they can supply
other interfaces like i2c, gpios for other devices, we may need to
describe these at device tree.
In this commit, it uses "reg" in dts as physical port number to match
the phyiscal port number decided by USB core, if they are the same,
then the device node is for the device we are creating for USB core.
Signed-off-by: Peter Chen <[email protected]>
Acked-by: Philipp Zabel <[email protected]>
Acked-by: Alan Stern <[email protected]>
Acked-by: Rob Herring <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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If OF is disabled, we will try to define a stub for
of_usb_get_dr_mode_by_phy(), however that missed a
static inline annotation which made us redefine the
stub over and over again. Fix that.
Fixes: 98bfb3946695 ("usb: of: add an api to get
dr_mode by the phy node")
Signed-off-by: Felipe Balbi <[email protected]>
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Some USB phy drivers have different handling for the controller in each
dr_mode. But the phy driver does not have visibility to the dr_mode of
the controller.
This adds an api to return the dr_mode of the controller which
associates the given phy node.
Signed-off-by: Bin Liu <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
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By using the unified device property interface, the function
can be made available for all platforms and not just the
ones using DT.
Signed-off-by: Heikki Krogerus <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
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By using the unified device property interface, the function
can be made available for all platforms and not just the
ones using DT.
Signed-off-by: Heikki Krogerus <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
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Check property of usb hardware to update otg version and disable SRP, HNP
and ADP if its disable flag is present.
Reviewed-by: Roger Quadros <[email protected]>
Signed-off-by: Li Jun <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
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The TPL (Targeted Peripheral List) is used for targeted hosts
(non-PC hosts), and it can be used at USB OTG & EH certification
and some specific products which need white list.
Signed-off-by: Peter Chen <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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commit 052a11d (usb: phy: make PHY driver selection
possible by controller drivers) changed the rules
on how drivers/usb/phy/of.c would be compiled and
failed to update include/linux/usb/of.h accordingly.
Because of that, we can fall into situations where
of_usb_get_phy_mode() is redefined. In order to fix
the error, we update the IS_ENABLED() check in
include/linux/usb/of.h to reflect the condition
where of.c is built.
Reported-by: Stephen Rothwell <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
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this helper will be used for controllers which
want to work at a lower speed even though they
support higher USB transfer rates.
One such case is Texas Instruments' AM437x
SoC where it uses a USB3 controller without
a USB3 PHY, rendering the controller USB2-only.
Signed-off-by: Felipe Balbi <[email protected]>
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on i386:
drivers/built-in.o: In function `ci_hdrc_probe':
core.c:(.text+0x20446b): undefined reference to `of_usb_get_phy_mode'
Signed-off-by: Peter Chen <[email protected]>
Reported-by: Randy Dunlap <[email protected]>
Acked-by: Randy Dunlap <[email protected]>
Acked-by: Alexander Shishkin <[email protected]>
Acked-by: Felipe Balbi <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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This adds two little devicetree helper functions for determining the
dr_mode (host, peripheral, otg) and phy_type (utmi, ulpi,...) from
the devicetree.
Signed-off-by: Michael Grzeschik <[email protected]>
Signed-off-by: Marc Kleine-Budde <[email protected]>
Signed-off-by: Sascha Hauer <[email protected]>
Acked-by: Felipe Balbi <[email protected]>
Signed-off-by: Alexander Shishkin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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