linux/drivers/usb/dwc2/core.c, branch v5.2

usb: dwc2: gadget: Move gadget phy init into core phy init

2019-05-03T06:13:48Z

Most of the phy initialization is shared between host and gadget, this adds the turnaround configuration only used by gadgets to the global phy init. Acked-by: Minas Harutyunyan Signed-off-by: Jules Maselbas Signed-off-by: Felipe Balbi

usb: dwc2: Move phy init into core

2019-05-03T06:13:48Z

As the phy initialization is almost the same in host and gadget mode. This only move the phy initialization functions into core.c for now, the goal is to share theses functions between the two modes. Acked-by: Minas Harutyunyan Signed-off-by: Jules Maselbas Signed-off-by: Felipe Balbi

usb: dwc2: Modify dwc2_readl/writel functions prototype

2018-07-30T07:39:16Z

Added hsotg argument to dwc2_readl/writel function prototype, and also instead of address pass offset of register. hsotg will contain flag field for endianness. Also customized dwc2_set_bit and dwc2_clear_bit function for dwc2_readl/writel functions. Signed-off-by: Gevorg Sahakyan Signed-off-by: Felipe Balbi

usb: dwc2: Fix kernel doc's warnings.

2018-05-21T07:02:13Z

Added descriptions for all not described parameters. Fix all kernel doc's warnings. Acked-by: Minas Harutyunyan Signed-off-by: Grigor Tovmasyan Signed-off-by: Felipe Balbi

usb: dwc2: Make dwc2_force_mode() static

2018-03-13T08:47:58Z

Declared dwc2_force_mode() function as static, because it was used only in core.c file, for fixing sparse error. Acked-by: John Youn Signed-off-by: Grigor Tovmasyan Signed-off-by: Felipe Balbi

usb: dwc2: Force mode optimizations

2018-03-13T08:47:58Z

If the dr_mode is USB_DR_MODE_OTG, forcing the mode is needed during driver probe to get the host and device specific HW parameters. Then we clear the force mode bits so that the core operates in OTG mode. The force mode bits should not be touched at any other time during the driver lifetime and they should be preserved whenever the GUSBCFG register is written to. The force mode bit values will persist across soft resets of the core. If the dr_mode is either USB_DR_MODE_HOST or USB_DR_MODE_PERIPHERAL, the force mode is set just once at probe to configure the core as either a host or peripheral. Given the above, we no longer need any other reset delays, force delays, or any forced modes anywhere else in the driver. So replace all calls to dwc2_core_reset_and_force_dr_mode() with dwc2_core_reset() and remove all other unnecessary delays. Also remove the dwc2_force_mode_if_needed() function since the "if needed" part is already taken care of by the polling in dwc2_force_mode(). Finally, remove all other calls to dwc2_clear_force_mode(). Tested-by: Stefan Wahren Signed-off-by: John Youn Signed-off-by: Vardan Mikayelyan Signed-off-by: Grigor Tovmasyan Signed-off-by: Felipe Balbi

usb: dwc2: Add dwc2_enter_hibernation(), dwc2_exit_hibernation()

2018-03-13T08:47:56Z

These are wrapper functions which are calling device or host enter/exit hibernation functions. Signed-off-by: Vardan Mikayelyan Signed-off-by: John Youn Signed-off-by: Grigor Tovmasyan Signed-off-by: Felipe Balbi

usb: dwc2: Add host/device hibernation functions

2018-03-13T08:47:56Z

Add host/device hibernation functions which must be wrapped by core's dwc2_enter_hibernation()/dwc2_exit_hibernation() functions. Make dwc2_backup_global_registers dwc2_restore_global_register non-static to use them in both host/gadget sides. Added function names: dwc2_gadget_enter_hibernation() dwc2_gadget_exit_hibernation() dwc2_host_enter_hibernation() dwc2_host_exit_hibernation() Signed-off-by: Vardan Mikayelyan Signed-off-by: John Youn Signed-off-by: Artur Petrosyan Signed-off-by: Minas Harutyunyan Signed-off-by: Grigor Tovmasyan Signed-off-by: Felipe Balbi

usb: dwc2: Add helper functions for restore routine

2018-03-13T08:47:55Z

Add common (host/device) helper functions, which will be called while exiting from hibernation, from both sides. dwc2_restore_essential_regs() dwc2_hib_restore_common() Signed-off-by: Vardan Mikayelyan Signed-off-by: John Youn Signed-off-by: Artur Petrosyan Signed-off-by: Minas Harutyunyan Signed-off-by: Grigor Tovmasyan Signed-off-by: Felipe Balbi

usb: dwc2: Changes in registers backup/restore functions

2018-03-13T08:47:55Z

Move hptxfsiz to host register's backup/restore functions, not needed to have it in global register's backup/restore functions. Add backup for glpmcfg, and read/write for gi2cctl and pcgcctl. As requires programming guide. Affected functions: dwc2_backup_host_registers() dwc2_restore_host_registers() dwc2_backup_global_registers() dwc2_restore_global_registers() Signed-off-by: Vardan Mikayelyan Signed-off-by: John Youn Signed-off-by: Grigor Tovmasyan Signed-off-by: Felipe Balbi