diff options
| author | Benjamin Bara <benjamin.bara@skidata.com> | 2023-06-23 09:28:13 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-07-30 13:27:32 +0200 |
| commit | b43cd82a1a40daaf4e1dd7098b8b63b4b8dfb094 (patch) | |
| tree | a843d1af35cee52a2a478c4e08022a8948368b54 /drivers/usb/cdns3/drd.c | |
| parent | f26069c9d7b6f83af953060cf05e425ea3cc7eeb (diff) | |
usb: misc: onboard-hub: add support for Cypress HX3 USB 3.0 family
The HX3 comes in different variants (up to 4 USB 3.0 ports; multi-TT),
e.g. CYUSB330x/CYUSB331x/CYUSB332x/CYUSB230x. It operates with two
different power supplies: 1V2 and 3V3.
Add the support for this hub, for controlling the reset pin and the
power supplies.
Reset time is extracted from data sheet, page 24:
"The RESETN pin can be tied to VDD_IO through an external resistor and
to ground (GND) through an external capacitor (minimum 5 ms time
constant)."
V_IH min is given at 0.7 * 3V3 (page 34), therefore use 10ms.
Also add USB PIDs for the USB 2.0 and USB 3.0 root hub.
Acked-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Benjamin Bara <benjamin.bara@skidata.com>
Link: https://lore.kernel.org/r/20230620-hx3-v7-2-f79b4b22a1bf@skidata.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/cdns3/drd.c')
0 files changed, 0 insertions, 0 deletions