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path: root/drivers/usb/cdns3/core.c
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2020-07-29usb: cdns3: convert to devm_platform_ioremap_resource_bynameChunfeng Yun1-2/+1
Use devm_platform_ioremap_resource_byname() to simplify code Cc: Peter Chen <[email protected]> Reviewed-by: Peter Chen <[email protected]> Signed-off-by: Chunfeng Yun <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-07-24usb: cdns3: core: removed overwriting some error codePawel Laszczak1-6/+2
Some error code can be preserved, so we can remove overwriting error code returned by some functions. Signed-off-by: Pawel Laszczak <[email protected]> Reviewed-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-24usb: cdns3: core: removed 'goto not_otg'Pawel Laszczak1-11/+9
Patch removes 'goto not_otg' instruction from cdns3_hw_role_state_machine function. Signed-off-by: Pawel Laszczak <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-24usb: cdns3: drd: removed not needed variables initializationPawel Laszczak1-2/+2
Patch remove some variables initialization from core.c and drd.c file. Reviewed-by: Peter Chen <[email protected]> Signed-off-by: Pawel Laszczak <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-24usb: cdns3: core: removed cdns3_get_current_role_driver functionPawel Laszczak1-7/+0
Function is not used in driver so it can be removed. Signed-off-by: Pawel Laszczak <[email protected]> Reviewed-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-03usb: cdns3: core: Fix incorrect formatting and misspelled function arg docsLee Jones1-4/+4
There are 3 misspellings and 1 incorrect format used in this file's kerneldoc function headers. Fixing them squashes the following W=1 kernel build warnings: drivers/usb/cdns3/gadget.c:653: warning: Function parameter or member 'priv_ep' not described in 'cdns3_wa2_descmissing_packet' drivers/usb/cdns3/gadget.c:653: warning: Excess function parameter 'priv_dev' description in 'cdns3_wa2_descmissing_packet' drivers/usb/cdns3/gadget.c:1088: warning: Function parameter or member 'request' not described in 'cdns3_ep_run_transfer' drivers/usb/cdns3/gadget.c:2574: warning: Function parameter or member 'priv_ep' not described in '__cdns3_gadget_ep_set_halt' drivers/usb/cdns3/gadget.c:2574: warning: Excess function parameter 'ep' description in '__cdns3_gadget_ep_set_halt' drivers/usb/cdns3/gadget.c:2595: warning: Function parameter or member 'priv_ep' not described in '__cdns3_gadget_ep_clear_halt' drivers/usb/cdns3/gadget.c:2595: warning: Excess function parameter 'ep' description in '__cdns3_gadget_ep_clear_halt' drivers/usb/cdns3/gadget.c:2898: warning: Function parameter or member 'priv_dev' not described in 'cdns3_init_eps' drivers/usb/cdns3/gadget.c:2898: warning: Excess function parameter 'cdns3' description in 'cdns3_init_eps' drivers/usb/cdns3/gadget.c:3210: warning: Function parameter or member 'cdns' not described in 'cdns3_gadget_init' Cc: Pawel Laszczak <[email protected]> Cc: Peter Chen <[email protected]> Cc: Roger Quadros <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-04-16usb: cdns3: change "cdsn3" to"cdns3"Peter Chen1-5/+3
And delete cdsn3_hw_role_state_machine declare which doesn't be needed. Signed-off-by: Peter Chen <[email protected]> Reviewed-by: Roger Quadros <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-04-16usb: cdns3: delete role_overridePeter Chen1-37/+0
In short, we have three kinds of role switches: - Based on SoC: ID and VBUS - Based on external connnctor, eg, Type-C or GPIO Connector - Based on user choices through sysfs Since HW handling and usb-role-switch handling are at different places, we do not need role_override any more, and this flag could not judge external connector case well. With role_override deleted, We use cdns3_hw_role_switch for the 1st use case, and usb-role-switch for the 2nd and 3rd cases. Signed-off-by: Peter Chen <[email protected]> Reviewed-by: Roger Quadros <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-04-16usb: cdns3: core: get role switch node from firmwarePeter Chen1-0/+2
After that, the role switch device (eg, Type-C device) could call cdns3_role_set to finish the role switch. Signed-off-by: Peter Chen <[email protected]> Reviewed-by: Roger Quadros <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
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]>
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