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* Merge tag 'usb-for-v4.17' of ↵Greg Kroah-Hartman2018-03-2311-481/+1443
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-testing Felipe writes: usb: changes for v4.17 merge window Quite a lot happened in this cycle, with a total of 95 non-merge commits. The most interesting parts are listed below: Synopsys has been adding better support for USB 3.1 to dwc3. The same series also sets g_mass_storage's max speed to SSP. Roger Quadros (TI) added support for dual-role using the OTG block available in some dwc3 implementations, this makes sure that AM437x can swap roles in runtime. We have a new SoC supported in dwc3 now - Amlogic Meson GX - thanks to the work of Martin Blumenstingl. We also have a ton of changes in dwc2 (51% of all changes, in fact). The most interesting part there is the support for Hibernation (a Synopsys PM feature). Apart from these, we have our regular set of non-critical fixes all over the place.
| * usb: dwc2: fix spelling mistake: "genereted" -> "generated"Colin Ian King2018-03-141-1/+1
| | | | | | | | | | | | | | 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>
| * usb: dwc2: Make dwc2_force_mode() staticGrigor Tovmasyan2018-03-131-1/+1
| | | | | | | | | | | | | | | | | | 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>
| * usb: dwc2: add support for host mode external vbus supplyAmelie Delaunay2018-03-132-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * usb: dwc2: Force mode optimizationsVardan Mikayelyan2018-03-135-65/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * usb: dwc2: Enable power downJohn Youn2018-03-131-1/+15
| | | | | | | | | | | | | | | | | | | | 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>
| * usb: dwc2: Change hub-control to allow hibernationVardan Mikayelyan2018-03-131-3/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Affected cases: ClearPortFeature's USB_PORT_FEAT_SUSPEND SetPortFeature's USB_PORT_FEAT_SUSPEND USB_PORT_FEAT_RESET Signed-off-by: Vardan Mikayelyan <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>
| * usb: dwc2: Add dwc2_handle_gpwrdn_intr() handlerVardan Mikayelyan2018-03-133-1/+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 <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>
| * usb: dwc2: Allow entering hibernation from USB_SUSPEND interruptVardan Mikayelyan2018-03-131-20/+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 <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>
| * usb: dwc2: Add dwc2_enter_hibernation(), dwc2_exit_hibernation()Vardan Mikayelyan2018-03-132-0/+41
| | | | | | | | | | | | | | | | | | | | 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>
| * usb: dwc2: Add host/device hibernation functionsVardan Mikayelyan2018-03-134-2/+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 <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>
| * usb: dwc2: Add helper functions for restore routineVardan Mikayelyan2018-03-132-0/+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 <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>
| * usb: dwc2: Changes in registers backup/restore functionsVardan Mikayelyan2018-03-133-4/+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 <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>
| * usb: dwc2: gadget: Add remote_wakeup_allowed flagVardan Mikayelyan2018-03-132-0/+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 <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>
| * usb: dwc2: core: Add hibernated flagVardan Mikayelyan2018-03-132-0/+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 <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>
| * usb: dwc2: gadget: Fix dwc2_restore_device_registersVardan Mikayelyan2018-03-133-15/+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 <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>
| * usb: dwc2: gadget: Moved dtxfsiz backup array placeVardan Mikayelyan2018-03-133-8/+6
| | | | | | | | | | | | | | | | | | | | 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>
| * usb: dwc2: Add hibernation field into dwc2_hw_paramsVardan Mikayelyan2018-03-134-5/+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 <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>
| * usb: dwc2: Rename hibernation to partial_power_downVardan Mikayelyan2018-03-137-38/+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 <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>
| * usb: dwc2: Enable LPMJohn Youn2018-03-131-0/+4
| | | | | | | | | | | | | | | | | | | | Set 'lpm_capable' flag in the gadget structure so indicating that LPM is supported. Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Sevak Arakelyan <sevaka@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: gadget: Use true and false for boolean valuesGustavo A. R. Silva2018-03-131-2/+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 <johnyoun@synopsys.com> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: Add core state checkingGrigor Tovmasyan2018-03-131-2/+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 <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: Add call_gadget() function callGrigor Tovmasyan2018-03-131-0/+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 <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: gadget: Configure the core to enable LPMSevak Arakelyan2018-03-133-0/+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 <sevaka@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: Enable LPM Transaction Received interruptSevak Arakelyan2018-03-133-3/+8
| | | | | | | | | | | | | | | | | | Enable "LPM Transaction Received" interrupt for receive an interrupt when host will send LPM token. Signed-off-by: Sevak Arakelyan <sevaka@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: gadget: LPM interrupt handlerSevak Arakelyan2018-03-131-0/+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 <sevaka@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: gadget: Add functionality to exit from LPM L1 stateSevak Arakelyan2018-03-131-0/+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 <sevaka@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: Add core parameters for LPM supportSevak Arakelyan2018-03-133-0/+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 <sevaka@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: Rename GLPMCFG... definitionsSevak Arakelyan2018-03-131-18/+20
| | | | | | | | | | | | | | | | | | Make field names of GLPMCFG register in definitions to be the same with the databook. Signed-off-by: Sevak Arakelyan <sevaka@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: Backup and restore PCGCCTL1 registerRazmik Karapetyan2018-03-132-0/+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 <razmik@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: Add ACG support to the driverRazmik Karapetyan2018-03-136-2/+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 <razmik@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: Print error if unable to set DMA coherent maskStefan Wahren2018-03-131-1/+3
| | | | | | | | | | | | | | | | We better print an error in case probing of dwc2 fails on setting the DMA coherent mask. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: Fix interval type issueGrigor Tovmasyan2018-03-131-1/+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 <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: pci: Handle error cleanup in probeVardan Mikayelyan2018-03-131-3/+3
| | | | | | | | | | | | | | | | | | | | | | The probe function doesn't properly handle errors. Fix it so that it properly handles cleanup. Acked-by: John Youn <johnyoun@synopsys.com> 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>
| * usb: dwc2: pci: Move devm_kzalloc() before platform_device_add()Vardan Mikayelyan2018-03-131-4/+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 <johnyoun@synopsys.com> 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>
| * usb: dwc2: pci: Move usb_phy_generic_register()Vardan Mikayelyan2018-03-131-7/+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 <johnyoun@synopsys.com> 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>
| * usb: dwc2: pci: Replace kzalloc() with devm_kzalloc()Vardan Mikayelyan2018-03-131-2/+1
| | | | | | | | | | | | | | | | | | | | Use devm_kzalloc() and remove the unnecessary kfree(). Acked-by: John Youn <johnyoun@synopsys.com> 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>
| * usb: dwc2: Change TxFIFO and RxFIFO flushing flowMinas Harutyunyan2018-03-131-0/+10
| | | | | | | | | | | | | | | | | | | | Before flushing fifos required to check AHB master state and lush when AHB master is in IDLE state. Acked-by: John Youn <johnyoun@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>
| * usb: dwc2: host: Fix transaction errors in host modeMinas Harutyunyan2018-03-131-1/+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 <johnyoun@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>
| * usb: dwc2: hcd: Fix host channel halt flowMinas Harutyunyan2018-03-131-0/+18
| | | | | | | | | | | | | | | | | | | | According databook in Buffer and External DMA mode non-split periodic channels can't be halted. Acked-by: John Youn <johnyoun@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>
| * usb: dwc2: Remove unnecessary debug printsRazmik Karapetyan2018-03-131-14/+2
| | | | | | | | | | | | | | | | | | | | Removed unnecessary debug prints about DMA mode for host side from dwc2_gahbcfg_init() function. Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Razmik Karapetyan <razmik@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: Delete unused functionalityGrigor Tovmasyan2018-03-133-144/+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 <johnyoun@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: Rename bit set/clear function namesRazmik Karapetyan2018-03-131-22/+22
| | | | | | | | | | | | | | | | | | | | Renamed __orr32 and __bic32 function names to more descriptive dwc2_set_bit and dwc2_clear_bit respectively. Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Razmik Karapetyan <razmik@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: Update GINTSTS_GOUTNAKEFF interrupt handlingRazmik Karapetyan2018-03-131-1/+8
| | | | | | | | | | | | | | | | | | | | | | Disabled only unmasked endpoints based on DAINTMSK register. This will allow to minimize GINTSTS_GOUTNAKEFF interrupt handling. Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Razmik Karapetyan <razmik@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>
| * usb: dwc2: Update dwc2_handle_incomplete_isoc_out() functionRazmik Karapetyan2018-03-131-2/+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 <johnyoun@synopsys.com> Signed-off-by: Razmik Karapetyan <razmik@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>
| * usb: dwc2: Update dwc2_handle_incomplete_isoc_in() functionRazmik Karapetyan2018-03-131-1/+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 <johnyoun@synopsys.com> Signed-off-by: Razmik Karapetyan <razmik@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>
| * usb: dwc2: Set AHB burst size to INCRRazmik Karapetyan2018-03-132-2/+2
| | | | | | | | | | | | | | | | | | | | Changed AHB burst size from INCR4 to INCR by default. With this value driver shows excellent DMA performance. Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Razmik Karapetyan <razmik@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: Use AHB burst size parameterRazmik Karapetyan2018-03-131-1/+1
| | | | | | | | | | | | | | | | | | | | In dwc2_hsotg_core_init_disconnected() function used AHB burst size parameter, instead of calculating already calculated value. Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Razmik Karapetyan <razmik@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: Update bit polling functionalitySevak Arakelyan2018-03-134-90/+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 <johnyoun@synopsys.com> Signed-off-by: Sevak Arakelyan <sevaka@synopsys.com> Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| * usb: dwc2: Remove version check in GSNPSIDGevorg Sahakyan2018-03-133-6/+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 <johnyoun@synopsys.com> Signed-off-by: Gevorg Sahakyan <sahakyan@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>
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-11 02:53:46 +0000