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| author | Dmitry Torokhov <[email protected]> | 2019-01-24 23:28:12 +0000 |
|---|---|---|
| committer | Marcel Holtmann <[email protected]> | 2019-01-25 07:46:26 +0000 |
| commit | b4dfbbd1803d81b51bf2c47b182a7029b476d8e2 (patch) | |
| tree | 6e75049fd000acec7fa6c8c3543412e9f4e4796f /drivers/usb/core/hcd.c | |
| parent | usb: split code locating ACPI companion into port and device (diff) | |
| download | kernel-b4dfbbd1803d81b51bf2c47b182a7029b476d8e2.tar.gz kernel-b4dfbbd1803d81b51bf2c47b182a7029b476d8e2.zip | |
usb: assign ACPI companions for embedded USB devices
USB devices permanently connected to USB ports may be described in ACPI
tables and share ACPI devices with ports they are connected to. See [1]
for details.
This will allow us to describe sideband resources for devices, such as,
for example, hard reset line for BT USB controllers.
[1] https://docs.microsoft.com/en-us/windows-hardware/drivers/bringup/other-acpi-namespace-objects#acpi-namespace-hierarchy-and-adr-for-embedded-usb-devices
Signed-off-by: Dmitry Torokhov <[email protected]>
Signed-off-by: Rajat Jain <[email protected]> (changed how we get the usb_port)
Acked-by: Greg Kroah-Hartman <[email protected]>
Tested-by: Sukumar Ghorai <[email protected]>
Signed-off-by: Marcel Holtmann <[email protected]>
Diffstat (limited to 'drivers/usb/core/hcd.c')
0 files changed, 0 insertions, 0 deletions