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2018-03-22usb: dwc3: Add DWC_usb31 GTXTHRCFG reg fieldsThinh Nguyen1-0/+10
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 <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-22usb: dwc3: gadget: Check IP revision for GRXTHRCFGThinh Nguyen1-1/+5
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 <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-22usb: dwc3: Add DWC_usb31 GRXTHRCFG bit fieldsThinh Nguyen1-0/+10
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 <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-22usb: dwc3: Check IP revision for GTXFIFOSIZThinh Nguyen1-1/+4
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 <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-22usb: dwc3: Update DWC_usb31 GTXFIFOSIZ reg fieldsThinh Nguyen1-0/+2
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 <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-22usb: dwc3: Add SoftReset PHY synchonization delayThinh Nguyen1-1/+12
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 <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-22usb: dwc3: pci: Properly cleanup resourceThinh Nguyen1-1/+1
Platform device is allocated before adding resources. Make sure to properly cleanup on error case. Cc: <[email protected]> Fixes: f1c7e7108109 ("usb: dwc3: convert to pcim_enable_device()") Signed-off-by: Thinh Nguyen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-22usb: dwc3: Makefile: fix link error on randconfigFelipe Balbi1-1/+1
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 <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-19usb: dwc3: ep0: remove redundant assignmentHeinrich Schuchardt1-1/+1
In dwc3_request *r = NULL; r = A; the first assignment has no effect. Remove it. Signed-off-by: Heinrich Schuchardt <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-14usb: dwc2: fix spelling mistake: "genereted" -> "generated"Colin Ian King1-1/+1
Trivial fix to spelling mistake in dev_warn warning message text. Signed-off-by: Colin Ian King <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc3: Prevent indefinite sleep in _dwc3_set_mode during suspend/resumeRoger Quadros1-3/+20
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 <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Make dwc2_force_mode() staticGrigor Tovmasyan1-1/+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 <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: add support for host mode external vbus supplyAmelie Delaunay2-0/+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 <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc2: Force mode optimizationsVardan Mikayelyan5-65/+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 <[email protected]> Signed-off-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]>
2018-03-13usb: dwc2: Enable power downJohn Youn1-1/+15
Enable the power down option based on the core capability. Signed-off-by: John Youn <[email protected]> Signed-off-by: Vardan Mikayelyan <[email protected]> Signed-off-by: Artur Petrosyan <[email protected]> Signed-off-by: Grigor Tovmasyan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
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: dwc3: add dual role support using OTG blockRoger Quadros3-28/+557
This is useful on platforms (e.g. TI AM437x) that don't have ID available on a GPIO but do have the OTG block. We can obtain the ID state via the OTG block and use it for dual-role switching. Signed-off-by: Roger Quadros <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: phy: tegra: Increase PHY clock stabilization timeoutDmitry Osipenko1-9/+5
This fixes "utmi_phy_clk_enable: timeout waiting for phy to stabilize" error message. Signed-off-by: Dmitry Osipenko <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: phy-generic: Use gpiod_set_value_cansleepMike Looijmans1-3/+3
The nop_reset and shutdown methods are called in a context that can sleep, so use gpiod_set_value_cansleep instead of gpiod_set_value. If you've connected the reset line to a GPIO expander, you'd get a kernel "slowpath" warning with gpiod_set_value. Signed-off-by: Mike Looijmans <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: gadget: udc: Use scnprintf() instead of snprintf()Jaejoong Kim2-3/+3
The show() method should use scnprintf() not snprintf() because snprintf() may returns a value that exceeds its second argument. Signed-off-by: Jaejoong Kim <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc3: prevent setting PRTCAP to OTG from debugfsRoger Quadros1-0/+3
We don't support PRTCAP == OTG yet, so prevent user from setting it via debugfs. Fixes: 41ce1456e1db ("usb: dwc3: core: make dwc3_set_mode() work properly") Cc: <[email protected]> # v4.12+ Signed-off-by: Roger Quadros <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc3: core.h: add some register definitionsRoger Quadros1-0/+82
Add OTG and GHWPARAMS6 register definitions Signed-off-by: Roger Quadros <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc3: of-simple: add support for the Amlogic Meson GXL and AXG SoCsMartin Blumenstingl1-0/+8
Amlogic Meson GXL and AXG SoCs come with a (host-only) dwc3 USB controller. To use this controller a clock has to be enabled and a reset line has to be pulsed. Enabling the clock works identical to other SoCs. However, the reset line has to be pulsed (using reset_control_reset) instead of using a level reset (reset_control_{assert,deassert}). Signed-off-by: Martin Blumenstingl <[email protected]> Tested-by: Yixun Lan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13usb: dwc3: of-simple: add support for shared and pulsed reset linesMartin Blumenstingl1-6/+17
Some SoCs (such as Amlogic Meson GXL for example) share the reset line with other components (in case of the Meson GXL example there's a shared reset line between the USB2 PHYs, USB3 PHYs and the dwc3 controller). Additionally SoC implementations may prefer a reset pulse over level resets. For now this falls back to the old defaults, which are: - reset lines are exclusive - level resets are being used Signed-off-by: Martin Blumenstingl <[email protected]> Tested-by: Yixun Lan <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2018-03-13dt-bindings: usb: add support for dwc3 controller on Amlogic Meson GXMartin Blumenstingl1-0/+42
Amlogic Meson GX SoCs (GXL and AXG) come with a (host-only) dwc3 USB controller. This requires a clock to be enabled and a reset line to be pulsed to get the hardware into a known state. Add the documentation for this IP block, similar to "qcom,dwc3.txt". Signed-off-by: Martin Blumenstingl <[email protected]> Reviewed-by: Rob Herring <[email protected]> Tested-by: Yixun Lan <[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]>
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