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path: root/drivers/usb
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2018-03-22usb: dwc3: Check controller type before setting speedThinh Nguyen
DWC_usb3 speed can only be set up to SuperSpeed. Limit the setting to SuperSpeed only should the value be higher. Otherwise, the controller will read an invalid speed value and set the device to an incorrect speed. Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-22usb: dwc3: Dump LSP and BMU debug infoThinh Nguyen
Dump LSP and BMU debug info. Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-22usb: dwc3: Check for ESS TX/RX threshold configThinh Nguyen
Check and configure TX/RX threshold for DWC_usb31. Update dwc3 structure with new fields to store these threshold configurations. Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-22usb: dwc3: Add DWC_usb31 GTXTHRCFG reg fieldsThinh Nguyen
Add new GTXTHRCFG bit field macros for DWC_usb31. The GTXTHRCFG register fields for DWC_usb31 is as follows: +-------+--------------------------+-----------------------------------+ | BITS | Name | Description | +=======+==========================+===================================+ | 31:27 | reserved | | | 26 | UsbTxPktCntSel | Async ESS transmit packet | | | | threshold enable | | 25:21 | UsbTxPktCnt | Async ESS transmit packet | | | | threshold count | | 20:16 | UsbMaxTxBurstSize | Async ESS Max transmit burst size | | 15 | UsbTxThrNumPktSel_HS_Prd | HS high bandwidth periodic | | | | transmit packet threshold enable | | 14:13 | UsbTxThrNumPkt_HS_Prd | HS high bandwidth periodic | | | | transmit packet threshold count | | 12:11 | reserved | | | 10 | UsbTxThrNumPktSel_Prd | Periodic ESS transmit packet | | | | threshold enable | | 9:5 | UsbTxThrNumPkt_Prd | Periodic ESS transmit packet | | | | threshold count | | 4:0 | UsbMaxTxBurstSize_Prd | Max periodic ESS TX burst size | +-------+--------------------------+-----------------------------------+ Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-22usb: dwc3: gadget: Check IP revision for GRXTHRCFGThinh Nguyen
DWC_usb31 controller has a different UsbRxPktCnt bit fields from GRXTHRCFG register. Check for DWC_usb31 IP revision to read the appropriate value. Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-22usb: dwc3: Add DWC_usb31 GRXTHRCFG bit fieldsThinh Nguyen
Add new GRXTHRCFG bit field macros for DWC_usb31. The GRXTHRCFG register fields for DWC_usb31 is as follows: +-------+--------------------------+----------------------------------+ | BITS | Name | Description | +=======+==========================+==================================+ | 31:27 | reserved | | | 26 | UsbRxPktCntSel | Async ESS receive packet | | | | threshold enable | | 25:21 | UsbRxPktCnt | Async ESS receive packet | | | | threshold count | | 20:16 | UsbMaxRxBurstSize | Async ESS Max receive burst size | | 15 | UsbRxThrNumPktSel_HS_Prd | HS high bandwidth periodic | | | | receive packet threshold enable | | 14:13 | UsbRxThrNumPkt_HS_Prd | HS high bandwidth periodic | | | | receive packet threshold count | | 12:11 | reserved | | | 10 | UsbRxThrNumPktSel_Prd | Periodic ESS receive packet | | | | threshold enable | | 9:5 | UsbRxThrNumPkt_Prd | Periodic ESS receive packet | | | | threshold count | | 4:0 | UsbMaxRxBurstSize_Prd | Max periodic ESS RX burst size | +-------+--------------------------+----------------------------------+ Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-22usb: dwc3: Check IP revision for GTXFIFOSIZThinh Nguyen
DWC_usb31 controller has different GTXFIFOSIZE bit field for TXFDEF. Check for DWC_usb31 IP revision to read the appropriate bit fields. Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-22usb: dwc3: Update DWC_usb31 GTXFIFOSIZ reg fieldsThinh Nguyen
Update two GTXFIFOSIZ bit fields for the DWC_usb31 controller. TXFDEP is a 15-bit value instead of 16-bit value, and bit 15 is TXFRAMNUM. The GTXFIFOSIZ register for DWC_usb31 is as follows: +-------+-----------+----------------------------------+ | BITS | Name | Description | +=======+===========+==================================+ | 31:16 | TXFSTADDR | Transmit FIFOn RAM Start Address | | 15 | TXFRAMNUM | Asynchronous/Periodic TXFIFO | | 14:0 | TXFDEP | TXFIFO Depth | +-------+-----------+----------------------------------+ Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-22usb: dwc3: Add SoftReset PHY synchonization delayThinh Nguyen
From DWC_usb31 programming guide section 1.3.2, once DWC3_DCTL_CSFTRST bit is cleared, we must wait at least 50ms before accessing the PHY domain (synchronization delay). Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-22usb: dwc3: pci: Properly cleanup resourceThinh Nguyen
Platform device is allocated before adding resources. Make sure to properly cleanup on error case. Cc: <stable@vger.kernel.org> Fixes: f1c7e7108109 ("usb: dwc3: convert to pcim_enable_device()") Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-22usb: dwc3: Makefile: fix link error on randconfigFelipe Balbi
If building a kernel without FTRACE but with TRACING, dwc3.ko fails to link due to missing trace events. Fix this by using the correct Kconfig symbol on Makefile. Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-20USB: misc: uss720: more vendor/product ID'sDaniel Gimpelevich
Reporting two more VID/PID pairs that work with this driver, having used an informational webpage <http://reboots.g-cipher.net/lcd/> as a buying guide now. The page listed additional working VID/PID pairs but did not include these two. None were upstreamed. Also taking this opportunity to sort the pairs numerically. Of the two such cables now in my possession, one is white, bearing the In-System Design ISD-103 label on one side, sold as an Epson CAEUL0002 "USB to Parallel Smart Cable For Apple Macintosh Computers" (04b8:0002), and the other is black, bearing the In-System Design ISD-101 label on one side, sold as an early Belkin F5U002 (05ab:0002). Signed-off-by: Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-20Merge 4.16-rc6 into tty-nextGreg Kroah-Hartman
We want the serial/tty fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-20usb: core: Add "quirks" parameter for usbcoreKai-Heng Feng
Trying quirks in usbcore needs to rebuild the driver or the entire kernel if it's builtin. It can save a lot of time if usbcore has similar ability like "usbhid.quirks=" and "usb-storage.quirks=". Rename the original quirk detection function to "static" as we introduce this new "dynamic" function. Now users can use "usbcore.quirks=" as short term workaround before the next kernel release. Also, the quirk parameter can XOR the builtin quirks for debugging purpose. This is inspired by usbhid and usb-storage. Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-20usb: core: urb: Check SSP isoc ep comp descriptorThinh Nguyen
The maximum bytes per interval for USB SuperSpeed Plus can be set by isoc endpoint companion descriptor when it is above 48K. If the descriptor is provided, then use its value. USB 3.1 spec 9.6.8 Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-20Merge branch 4.16-rc6 into usb-nextGreg Kroah-Hartman
We want the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-19USB: serial: option: use mass-storage class defineJohan Hovold
Use the USB class define rather than a magic number when refusing to bind to mass-storage interfaces. Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2018-03-19USB: serial: option: drop redundant interface-class testJohan Hovold
Drop redundant interface-class test for Samsung GT-B3730 modems for which we only match and probe the CDC data interface. Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2018-03-19USB: serial: option: reimplement interface maskingJohan Hovold
Reimplement interface masking using device flags stored directly in the device-id table. This will make it easier to add and maintain device-id entries by using a more compact and readable notation compared to the current implementation (which manages pairs of masks in separate blacklist structs). Two convenience macros are used to flag an interface as either reserved or as not supporting modem-control requests: { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910_DUAL_MODEM), .driver_info = NCTRL(0) | RSVD(3) }, For now, we limit the highest maskable interface number to seven, which allows for (up to 16) additional device flags to be added later should need arise. Note that this will likely need to be backported to stable in order to make future device-id backports more manageable. Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2018-03-19usb: dwc3: ep0: remove redundant assignmentHeinrich Schuchardt
In dwc3_request *r = NULL; r = A; the first assignment has no effect. Remove it. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-16USB: wusbcore: crypto: Remove VLA usageGustavo A. R. Silva
In preparation to enabling -Wvla, remove VLA and replace it with dynamic memory allocation instead. The use of stack Variable Length Arrays needs to be avoided, as they can be a vector for stack exhaustion, which can be both a runtime bug or a security flaw. Also, in general, as code evolves it is easy to lose track of how big a VLA can get. Thus, we can end up having runtime failures that are hard to debug. Also, fixed as part of the directive to remove all VLAs from the kernel: https://lkml.org/lkml/2018/3/7/621 Notice that in this particular case, an alternative to kzalloc is kcalloc, in which case the code would look as follows instead: iv = kcalloc(crypto_skcipher_ivsize(tfm_cbc), sizeof(*iv), GFP_KERNEL); but if the data type of _iv_ never changes, or the type size is always one byte, kzalloc is good enough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-16USB: host: sl811: Re-use DEFINE_SHOW_ATTRIBUTE() macroAndy Shevchenko
...instead of open coding file operations followed by custom ->open() callbacks per each attribute. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-16xhci: Show what USB release number the xHC supports from protocol capablityMathias Nyman
xhci driver displays the supported xHC USB revision in a message during driver load: "Host supports USB 3.1 Enhanced SuperSpeed" Get the USB minor revision number from the xhci protocol capability. This will show the correct supported revisions for new USB 3.2 and later hosts Don't rely on the SBRN (serial bus revision number) register, it's often showing 0x30 (USB3.0) for hosts that support USB 3.1 Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-16xhci: Clear the host side toggle manually when endpoint is soft resetMathias Nyman
Some devices use a clear endpoint halt request as a soft reset, even if the endpoint is not halted. This will clear the toggle and sequence on the device side. xHCI however refuses to reset a non-halted endpoint, so instead we need to issue a configure endpoint command on xHCI to clear its host side toggle and sequence, and get it in sync with the device side. This is a respin of a old patch that was reverted as it had a stale endpoint context dequeue value which caused regression. commit 27082e2654dc ("xhci: Clear the host side toggle manually when endpoint is 'soft reset'") Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-16xhci: refactor xhci_urb_enqueue a bit with minor changesMathias Nyman
make the local ep_state variable a pointer to the actual ring ep_state. This allows us to read fresh ep_state values every time, will be useful later. Also move the streams check out from bulk only case. Even if only bulk tranfers can use streams we shouldn't continue if those flags are set. Main reason for this change is really code readability and grouping functionality Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-16xhci: Don't always run the default stop endpoint command completion handlerMathias Nyman
The default stop endpoint completion handler will give back cancelled URBs, and clean, or move past those canceller TRBs on the ring. This is not always the preferred action. If the stop endpoint command issuer is waiting for a completion skip the default handler and just call the completion. Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-16xhci: zero usb device slot_id member when disabling and freeing a xhci slotMathias Nyman
set udev->slot_id to zero when disabling and freeing the xhci slot. Prevents usb core from calling xhci with a stale slot id. xHC controller may be reset during resume to recover from some error. All slots are unusable as they are disabled and freed. xhci driver starts slot enumeration again from 1 in the order they are enabled. In the worst case a stale udev->slot_id for one device matches a newly enabled slot_id for a different device, causing us to perform a action on the wrong device. Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-16usb: xhci: Remove ep_trb from finish_td()Lu Baolu
Function argument ep_trb for finish_td() isn't needed anymore. Cleanup it. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-16usb: xhci: Remove ep_trb from xhci_cleanup_halted_endpoint()Lu Baolu
Function argument ep_trb for xhci_cleanup_halted_endpoint() isn't needed anymore. Cleanup it. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-16usb: xhci: Clean up error code in xhci_dbc_tty_register_device()Dan Carpenter
tty_port_register_device() returns error pointers on error, never NULL. The IS_ERR_OR_NULL() function returns either 1 or 0 so it means we return 1 on error instead of a proper error code. The caller only checks for zero vs non-zero so this doesn't affect runtime. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-15net: drivers/net: Remove unnecessary skb_copy_expand OOM messagesJoe Perches
skb_copy_expand without __GFP_NOWARN already does a dump_stack on OOM so these messages are redundant. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-14usb: dwc2: fix spelling mistake: "genereted" -> "generated"Colin Ian King
Trivial fix to spelling mistake in dev_warn warning message text. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-13usb: musb: Fix external abort in musb_remove on omap2430Merlijn Wajer
This fixes an oops on unbind / module unload (on the musb omap2430 platform). musb_remove function now calls musb_platform_exit before disabling runtime pm. Signed-off-by: Merlijn Wajer <merlijn@wizzup.org> Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-13usb: dwc3: Prevent indefinite sleep in _dwc3_set_mode during suspend/resumeRoger Quadros
In the following test we get stuck by sleeping forever in _dwc3_set_mode() after which dual-role switching doesn't work. On dra7-evm's dual-role port, - Load g_zero gadget driver and enumerate to host - suspend to mem - disconnect USB cable to host and connect otg cable with Pen drive in it. - resume system - we sleep indefinitely in _dwc3_set_mode due to. dwc3_gadget_exit()->usb_del_gadget_udc()->udc_stop()-> dwc3_gadget_stop()->wait_event_lock_irq() To fix this instead of waiting indefinitely with wait_event_lock_irq() we use wait_event_interruptible_lock_irq_timeout() and print and error message if there was a timeout. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-13usb: dwc2: Make dwc2_force_mode() staticGrigor Tovmasyan
Declared dwc2_force_mode() function as static, because it was used only in core.c file, for fixing sparse error. Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-13usb: dwc2: add support for host mode external vbus supplyAmelie Delaunay
This patch adds a way to enable an external vbus supply in host mode, when dwc2 drvvbus signal is not used. This patch is very similar to the one done in U-Boot dwc2 driver [1]. It also adds dynamic vbus supply management depending on the role and state of the core. [1] https://lists.denx.de/pipermail/u-boot/2017-March/283434.html Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-13usb: dwc2: Force mode optimizationsVardan Mikayelyan
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 <stefan.wahren@i2se.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-13usb: dwc2: Enable power downJohn Youn
Enable the power down option based on the core capability. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: Artur Petrosyan <arturp@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-13usb: dwc2: Change hub-control to allow hibernationVardan Mikayelyan
Affected cases: ClearPortFeature's USB_PORT_FEAT_SUSPEND SetPortFeature's USB_PORT_FEAT_SUSPEND USB_PORT_FEAT_RESET Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-13usb: dwc2: Add dwc2_handle_gpwrdn_intr() handlerVardan Mikayelyan
The GPWRDN interrupts are those that occur in both Host and Device mode while core is in hibernated state. Export dwc2_core_init to be able to use it in GPWRDN_IDSTS interrupt handler. Here we have duplicated init functions in host and gadget sides so I have left things as it was(used corresponing functions for host and gadget), maybe in the future we'll resolve this problem and will use dwc2_core_init for both sides. Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Artur Petrosyan <arturp@synopsys.com> Signed-off-by: Minas Harutyunyan <hminas@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-13usb: dwc2: Allow entering hibernation from USB_SUSPEND interruptVardan Mikayelyan
Do changes to allow entering hibernated state from USB_SUSPEND interrupt. All code is added under if conditions and mustn't impact existing functionality. Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-13usb: dwc2: Add dwc2_enter_hibernation(), dwc2_exit_hibernation()Vardan Mikayelyan
These are wrapper functions which are calling device or host enter/exit hibernation functions. Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-13usb: dwc2: Add host/device hibernation functionsVardan Mikayelyan
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 <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Artur Petrosyan <arturp@synopsys.com> Signed-off-by: Minas Harutyunyan <hminas@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-13usb: dwc2: Add helper functions for restore routineVardan Mikayelyan
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 <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Artur Petrosyan <arturp@synopsys.com> Signed-off-by: Minas Harutyunyan <hminas@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-13usb: dwc2: Changes in registers backup/restore functionsVardan Mikayelyan
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 <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-13usb: dwc2: gadget: Add remote_wakeup_allowed flagVardan Mikayelyan
It will be set once corresponding set_feature command comes. True if device is allowed to wake-up host by remote-wakeup signalling. This is preparation for remote wake-up support implementation, it will not be implemented until gadget stack provide interface for bringing remote wake-up signalling. Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-13usb: dwc2: core: Add hibernated flagVardan Mikayelyan
Added a flag to indicate that core is in hibernation, it is used to determine the hibernation state of the core. Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-13usb: dwc2: gadget: Fix dwc2_restore_device_registersVardan Mikayelyan
Add parameter remote_wakeup to dwc2_restore_device_registers() to be able to restore device registers according to programming guide for dwc-otg. It says that in case of rem_wakeup DCTL must not be restored here. Remove setting of DCTL_PWRONPRGDONE from this function, because it will be done in function responsible for exiting from hibernation. WA for enabled EPx's IN and OUT in DDMA mode. On entering to hibernation wrong value read and saved from DIEPDMAx, as result BNA interrupt asserted on hibernation exit by restoring from saved area. Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Artur Petrosyan <arturp@synopsys.com> Signed-off-by: Minas Harutyunyan <hminas@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-13usb: dwc2: gadget: Moved dtxfsiz backup array placeVardan Mikayelyan
Moved dtxfsiz from dwc2_gregs_backup to dwc2_dregs_backup, because it is device register. Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-03-13usb: dwc2: Add hibernation field into dwc2_hw_paramsVardan Mikayelyan
Add parameter and it's initialization, needed for hibernation. Reimplement dwc2_set_param_power_down() to support hibernation too. Now 'power_down' parameter can be initialized with 0, 1 or 2. 0 - No 1 - Partial power down 2 - Hibernation Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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