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path: root/drivers/usb/cdns3/core.c
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2020-03-04usb: roles: Provide the switch drivers handle to the switch in the APIHeikki Krogerus1-11/+11
The USB role callback functions had a parameter pointing to the parent device (struct device) of the switch. The assumption was that the switch parent is always the controller. Firstly, that may not be true in every case, and secondly, it prevents us from supporting devices that supply multiple muxes. Changing the first parameter of usb_role_switch_set_t and usb_role_switch_get_t from struct device to struct usb_role_switch. Cc: Peter Chen <[email protected]> Cc: Felipe Balbi <[email protected]> Cc: Chunfeng Yun <[email protected]> Cc: Bin Liu <[email protected]> Signed-off-by: Heikki Krogerus <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-10-18usb: cdns3: Error out if USB_DR_MODE_UNKNOWN in cdns3_core_init_role()Roger Quadros1-1/+3
USB_DR_MODE_UNKNOWN should be treated as error as it is done in cdns3_drd_update_mode(). Fixes: 02ffc26df96b ("usb: cdns3: fix cdns3_core_init_role()") Signed-off-by: Roger Quadros <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-10-10usb: cdns3: fix cdns3_core_init_role()Roger Quadros1-1/+19
At startup we should trigger the HW state machine only if it is OTG mode. Otherwise we should just start the respective role. Initialize idle role by default. If we don't do this then cdns3_idle_role_stop() is not called when switching to host/device role and so lane switch mechanism doesn't work. This results to super-speed device not working in one orientation if it was plugged before driver probe. Signed-off-by: Roger Quadros <[email protected]> Signed-off-by: Sekhar Nori <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-09-03usb: cdns3: Remove redundant dev_err call in cdns3_probe()Wei Yongjun1-3/+1
There is a error message within devm_ioremap_resource already, so remove the dev_err call to avoid redundant error message. Signed-off-by: Wei Yongjun <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-08-29usb: cdns3: Add Cadence USB3 DRD DriverPawel Laszczak1-0/+653
This patch introduce new Cadence USBSS DRD driver to Linux kernel. The Cadence USBSS DRD Controller is a highly configurable IP Core which can be instantiated as Dual-Role Device (DRD), Peripheral Only and Host Only (XHCI)configurations. The current driver has been validated with FPGA platform. We have support for PCIe bus, which is used on FPGA prototyping. The host side of USBSS-DRD controller is compliant with XHCI specification, so it works with standard XHCI Linux driver. Signed-off-by: Pawel Laszczak <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>