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path: root/drivers/usb/dwc2
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2018-03-13usb: dwc2: Change hub-control to allow hibernationVardan Mikayelyan1-3/+13
Affected cases: ClearPortFeature's USB_PORT_FEAT_SUSPEND SetPortFeature's USB_PORT_FEAT_SUSPEND USB_PORT_FEAT_RESET Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Add dwc2_handle_gpwrdn_intr() handlerVardan Mikayelyan3-1/+121
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 <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Artur Petrosyan <[email protected]> Signed-off-by: Minas Harutyunyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Allow entering hibernation from USB_SUSPEND interruptVardan Mikayelyan1-20/+32
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 <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Add dwc2_enter_hibernation(), dwc2_exit_hibernation()Vardan Mikayelyan2-0/+41
These are wrapper functions which are calling device or host enter/exit hibernation functions. Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Add host/device hibernation functionsVardan Mikayelyan4-2/+419
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 <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Artur Petrosyan <[email protected]> Signed-off-by: Minas Harutyunyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Add helper functions for restore routineVardan Mikayelyan2-0/+139
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 <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Artur Petrosyan <[email protected]> Signed-off-by: Minas Harutyunyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Changes in registers backup/restore functionsVardan Mikayelyan3-4/+12
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 <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: gadget: Add remote_wakeup_allowed flagVardan Mikayelyan2-0/+8
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 <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: core: Add hibernated flagVardan Mikayelyan2-0/+3
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 <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: gadget: Fix dwc2_restore_device_registersVardan Mikayelyan3-15/+30
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 <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Artur Petrosyan <[email protected]> Signed-off-by: Minas Harutyunyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: gadget: Moved dtxfsiz backup array placeVardan Mikayelyan3-8/+6
Moved dtxfsiz from dwc2_gregs_backup to dwc2_dregs_backup, because it is device register. Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Add hibernation field into dwc2_hw_paramsVardan Mikayelyan4-5/+47
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 <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Rename hibernation to partial_power_downVardan Mikayelyan7-38/+38
No-op change, only rename. This code was misnamed originally. It was only responsible for partial power down and not for hibernation. Rename core_params->hibernation to core_params->power_down, dwc2_set_param_hibernation() to dwc2_set_param_power_down(). Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Enable LPMJohn Youn1-0/+4
Set 'lpm_capable' flag in the gadget structure so indicating that LPM is supported. Signed-off-by: John Youn <[email protected]> Signed-off-by: Sevak Arakelyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: gadget: Use true and false for boolean valuesGustavo A. R. Silva1-2/+2
Assign true or false to boolean variables instead of an integer value. This issue was detected with the help of Coccinelle. Acked-by: John Youn <[email protected]> Signed-off-by: Gustavo A. R. Silva <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Add core state checkingGrigor Tovmasyan1-2/+2
Added core state checking in dwc2_hsotg_ep_queue() function to make sure that application will submit requests only in L0 state. Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Add call_gadget() function callGrigor Tovmasyan1-0/+6
Added call_gadget() function call when entering to L1 state to inform gadget that core is in L1 state. Did the same thing when exiting from L1 state to inform gadget that core is in L0 state. Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: gadget: Configure the core to enable LPMSevak Arakelyan3-0/+29
Configure core in device mode to support LPM according to programming guide. Device will start giving valid responses for LPM tokens. After this patch device side LPM will start working. Signed-off-by: Sevak Arakelyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Enable LPM Transaction Received interruptSevak Arakelyan3-3/+8
Enable "LPM Transaction Received" interrupt for receive an interrupt when host will send LPM token. Signed-off-by: Sevak Arakelyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: gadget: LPM interrupt handlerSevak Arakelyan1-0/+63
This interrupt indicates that an LPM transaction was received on the USB bus. After getting this interrupt we are going from L0 state to L1 state. Signed-off-by: Sevak Arakelyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: gadget: Add functionality to exit from LPM L1 stateSevak Arakelyan1-0/+52
Add a function which will be called if device is in L1 sleep state and Resume/Remote Wakeup Detected interrupt is asserted. Signed-off-by: Sevak Arakelyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Add core parameters for LPM supportSevak Arakelyan3-0/+38
Add lpm, lpm_clock_gating, besl, hird_threshold_en and hird_threshold core parameters. These will indicate LPM and LPM Errata support as well as chosen L1 sleeping mode for the core and PHY. Signed-off-by: Sevak Arakelyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Rename GLPMCFG... definitionsSevak Arakelyan1-18/+20
Make field names of GLPMCFG register in definitions to be the same with the databook. Signed-off-by: Sevak Arakelyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Backup and restore PCGCCTL1 registerRazmik Karapetyan2-0/+3
Backup PCGCCTL1 register when entering hibernation mode and restore it after exiting from hibernation, to keep active ACG feature. Signed-off-by: Razmik Karapetyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Add ACG support to the driverRazmik Karapetyan6-2/+41
Added function for supporting Active Clock Gating functionality in the driver. PCGCCTL1 (Power and Clock Control) register will be used for controlling the core`s active clock gating feature, and the previously reserved 12th bit in GHWCFG4 now indicates that the controller supports the Dynamic Power Reduction (Active Clock Gating) during no traffic scenarios such as L0, idle, resume and suspend states. dwc2_enable_acg() function sets GATEEN bit in PCGCCTL1 register and enables ACG, if it supported. According to ACG functional specification, enabling of ACG feature in host mode done in host initialization, before turning Vbus on, specifically in dwc2_core_host_init function. Enabling of ACG feature in device mode done in device initialization, before clearing the SftDiscon bit in DCTL. This bit was cleared in dwc2_hsotg_core_connect() function.So dwc2_enable_acg() called before dwc2_core_connect() calls. Signed-off-by: Razmik Karapetyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Print error if unable to set DMA coherent maskStefan Wahren1-1/+3
We better print an error in case probing of dwc2 fails on setting the DMA coherent mask. Signed-off-by: Stefan Wahren <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Fix interval type issueGrigor Tovmasyan1-1/+1
The maximum value that unsigned char can hold is 255, meanwhile the maximum value of interval is 2^(bIntervalMax-1)=2^15. Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: pci: Handle error cleanup in probeVardan Mikayelyan1-3/+3
The probe function doesn't properly handle errors. Fix it so that it properly handles cleanup. Acked-by: John Youn <[email protected]> Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: pci: Move devm_kzalloc() before platform_device_add()Vardan Mikayelyan1-4/+4
After platform_device_add(), if we error out, we must do platform_device_unregister(), which also does the put. So lets move devm_kzalloc() to simplify error handling and avoid calling of platform_device_unregister(). Acked-by: John Youn <[email protected]> Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: pci: Move usb_phy_generic_register()Vardan Mikayelyan1-7/+7
Move usb_phy_generic_register() function call to the top, to simplify error handling. If this fails we can simply return instead of cleaning up. Acked-by: John Youn <[email protected]> Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: pci: Replace kzalloc() with devm_kzalloc()Vardan Mikayelyan1-2/+1
Use devm_kzalloc() and remove the unnecessary kfree(). Acked-by: John Youn <[email protected]> Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: John Youn <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Change TxFIFO and RxFIFO flushing flowMinas Harutyunyan1-0/+10
Before flushing fifos required to check AHB master state and lush when AHB master is in IDLE state. Acked-by: John Youn <[email protected]> Signed-off-by: Minas Harutyunyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: host: Fix transaction errors in host modeMinas Harutyunyan1-1/+13
Added missing GUSBCFG programming in host mode, which fixes transaction errors issue on HiKey and Altera Cyclone V boards. These field even if was programmed in device mode (in function dwc2_hsotg_core_init_disconnected()) will be resetting to POR values after core soft reset applied. So, each time when switching to host mode required to set this field to correct value. Acked-by: John Youn <[email protected]> Signed-off-by: Minas Harutyunyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: hcd: Fix host channel halt flowMinas Harutyunyan1-0/+18
According databook in Buffer and External DMA mode non-split periodic channels can't be halted. Acked-by: John Youn <[email protected]> Signed-off-by: Minas Harutyunyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Remove unnecessary debug printsRazmik Karapetyan1-14/+2
Removed unnecessary debug prints about DMA mode for host side from dwc2_gahbcfg_init() function. Acked-by: John Youn <[email protected]> Signed-off-by: Razmik Karapetyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Delete unused functionalityGrigor Tovmasyan3-144/+0
Deleted dwc2_hcd_dump_frrem() function, because it used undefined parameters from dwc2_hsotg structure. The function body was in #ifdef statement and was never compiled. Also removed that parameters from dwc2_hsotg structure, which were used only in dwc2_hcd_dump_frrem() function. And also delete dwc2_sample_frrem macro, because without dwc2_hcd_dump_frrem() function it's lose its purpose. Acked-by: John Youn <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Rename bit set/clear function namesRazmik Karapetyan1-22/+22
Renamed __orr32 and __bic32 function names to more descriptive dwc2_set_bit and dwc2_clear_bit respectively. Acked-by: John Youn <[email protected]> Signed-off-by: Razmik Karapetyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Update GINTSTS_GOUTNAKEFF interrupt handlingRazmik Karapetyan1-1/+8
Disabled only unmasked endpoints based on DAINTMSK register. This will allow to minimize GINTSTS_GOUTNAKEFF interrupt handling. Acked-by: John Youn <[email protected]> Signed-off-by: Razmik Karapetyan <[email protected]> Signed-off-by: Minas Harutyunyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Update dwc2_handle_incomplete_isoc_out() functionRazmik Karapetyan1-2/+12
In 'for' loop skipped masked and non-ISOC EPs. Also breaked 'for' loop after setting SGOUTNAK in DCTL,when one enabled EP was detected. This will allow to minimize incomplete ISOC OUT interrupt handling. Acked-by: John Youn <[email protected]> Signed-off-by: Razmik Karapetyan <[email protected]> Signed-off-by: Minas Harutyunyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Update dwc2_handle_incomplete_isoc_in() functionRazmik Karapetyan1-1/+8
Disabled only that ISOC endpoints,for which interrupt bit was set in the DAINTMSK register. This will allow to minimize incomplete ISOC IN interrupt handling. Acked-by: John Youn <[email protected]> Signed-off-by: Razmik Karapetyan <[email protected]> Signed-off-by: Minas Harutyunyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Set AHB burst size to INCRRazmik Karapetyan2-2/+2
Changed AHB burst size from INCR4 to INCR by default. With this value driver shows excellent DMA performance. Acked-by: John Youn <[email protected]> Signed-off-by: Razmik Karapetyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Use AHB burst size parameterRazmik Karapetyan1-1/+1
In dwc2_hsotg_core_init_disconnected() function used AHB burst size parameter, instead of calculating already calculated value. Acked-by: John Youn <[email protected]> Signed-off-by: Razmik Karapetyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Update bit polling functionalitySevak Arakelyan4-90/+79
Move dwc2_hsotg_wait_bit_set function to core.c so it can be used anywhere in the code. Added dwc2_hsotg_wait_bit_clear function in core.c. Replace all the parts of register bit polling code with dwc2_hsotg_wait_bit_set or dwc2_hsotg_wait_bit_clear functions calls depends on code logic. Acked-by: John Youn <[email protected]> Signed-off-by: Sevak Arakelyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Remove version check in GSNPSIDGevorg Sahakyan3-6/+11
Only check the ID portion of the GSNPSID register and don’t check the version. This will allow the driver to work with version 4.00a and later of the DWC_hsotg IP. Acked-by: John Youn <[email protected]> Signed-off-by: Gevorg Sahakyan <[email protected]> Signed-off-by: Minas Harutyunyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-09USB: dwc2: Re-use DEFINE_SHOW_ATTRIBUTE() macroAndy Shevchenko1-78/+6
...instead of open coding file operations followed by custom ->open() callbacks per each attribute. Cc: John Youn <[email protected]> Signed-off-by: Andy Shevchenko <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2018-03-08usb: dwc2: eliminate irq parameter from dwc2_gadget_initVardan Mikayelyan3-7/+6
The irq is available in hsotg already, so there's no need to pass it as separate function parameter. Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-08USB: dwc2: Re-use DEFINE_SHOW_ATTRIBUTE() macroAndy Shevchenko1-78/+6
...instead of open coding file operations followed by custom ->open() callbacks per each attribute. Cc: John Youn <[email protected]> Signed-off-by: Andy Shevchenko <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-05usb: dwc2: fix STM32F7 USB OTG HS compatibleAmelie Delaunay1-3/+3
This patch fixes compatible for STM32F7 USB OTG HS and consistently rename dw2_set_params function. The v2 former patch [1] had been acked by Paul Young, but v1 was merged. [1] https://patchwork.kernel.org/patch/9925573/ Fixes: d8fae8b93682 ("usb: dwc2: add support for STM32F7xx USB OTG HS") Signed-off-by: Amelie Delaunay <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-02-12usb: dwc2: Fix dwc2_hsotg_core_init_disconnected()Vardan Mikayelyan1-6/+6
We should call dwc2_hsotg_enqueue_setup() after properly setting lx_state. Because it may cause error-out from dwc2_hsotg_enqueue_setup() due to wrong value in lx_state. Issue can be reproduced by loading driver while connected A-Connector (start in A-HOST mode) then disconnect A-Connector to switch to B-DEVICE. Acked-by: John Youn <[email protected]> Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-02-12usb: dwc2: Add safety check for STSPHSERCVD intrMinas Harutyunyan1-3/+7
STSPHSERCVD (status phase received) interrupt should be handled when EP0 is in DWC2_EP0_DATA_OUT state. Sometimes STSPHSERCVD interrupt asserted , when EP0 is not in DATA_OUT state. Spurios interrupt. Acked-by: John Youn <[email protected]> Signed-off-by: Minas Harutyunyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
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