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path: root/drivers/usb/dwc3/dwc3-msm.c (follow)
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| * | USB:dwc3-msm: Don't schedule work if pm_qos_latency is zeroVijayavardhan Vennapusa2017-05-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently driver is scheduling pm_qos_work again even though pm_qos_latency is not passed from dts file. Add a check for pm_qos_latency and don't schedule work if pm_qos_latency value is zero. Also remove use of static variable for last_irq_count and add the variable for the same in dwc3 structure for the case where multi DWC3 usages are used. Change-Id: I55e1e3a7d48fbea0a421802aae176ac57a48869f Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
* | | power: qcom: smb2: Add REAL_TYPE property for usb power_supplyFenglin Wu2017-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add POWER_SUPPLY_PROP_REAL_TYPE property for usb_psy to present its real charger type. POWER_SUPPLY_PROP_TYPE in usb_psy is always set to POWER_SUPPLY_TYPE_USB_PD for healthd to recognize it as an AC charger. Also add usb_port_psy with POWER_SUPPLY_TYPE_USB type is added for healthd to recognize it as an USB host. Their ONLINE properties will be updated according to the VBUS status, type-c mode and real charger type. With this type being set statically, update the usb phy and pd policy engine code to look at real type. Change-Id: I90aa69325cc82b09dfb513c0eeecbc61e092a57f Signed-off-by: Fenglin Wu <fenglinw@codeaurora.org> Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
* | | USB: dwc3: msm: Fix error handling with dwc3_msm_ep_queue()Mayank Rana2017-04-27
|/ / | | | | | | | | | | | | | | | | | | | | | | If __dwc3_msm_ep_queue() fails, then req_complete is freed but it is not being removed from mdwc->request_list. This may result into list_add corruption issue on next USB cable connect when USB endless request is queued. Fix this issue by deleting req_complete from mdwc->req_complete_list. CRs-Fixed: 1007571 Change-Id: I00300bc529db75593939a13fbea33acefa717da5 Signed-off-by: Mayank Rana <mrana@codeaurora.org>
* / usb: dwc3: Use high priority worker as bottom half handlerMayank Rana2017-03-31
|/ | | | | | | | | | | | Latency involved in handling dwc3 interrupt in real time threaded interrupt is sometimes resulting into RT throttling. Hence queue bottom half work from dwc3 hard irq handler to a high priority workqueue. Also, update the corresponding irq flag in host controller platform driver. Change-Id: If65a522efb6d792eea7fa7afc4c5e4dcd1cb6fb8 Signed-off-by: Hemant Kumar <hemantk@codeaurora.org> Signed-off-by: Mayank Rana <mrana@codeaurora.org>
* usb: dwc3: Set core clk rate to default upon device remove notificationHemant Kumar2017-02-07
| | | | | | | | | | | | commit 1eec2157d84dcb ("usb: dwc3: Update core clock rate based on USB port speed.") only sets clk rate for HS/FS/LS device add notification. In case super speed device is plugged in after LS/FS/HS device unplug in absence of runtime suspend, core clk rate remains at high speed core clk rate. Fix this issue by setting the core clk rate back to default when a device is being removed from root hub. Change-Id: I0ac37b7ff08a9a297441304eb2cfaff398d44bb9 Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
* USB: dwc3-msm: Add sysfs entry to manually set speedVamsi Krishna Samavedam2017-02-01
| | | | | | | | | | | In some cases it is useful to manually force the controller to run at certain speeds (USB 2.0 or USB 3.0 speeds). For example, EUD (Emebedded USB Debug) can only work when controller is operating in USB 2.0 speeds. User can force USB 2.0 if EUD is required. Change-Id: Id022f372014a9218537bd1b5477d4555aff4578c Signed-off-by: Vamsi Krishna Samavedam <vskrishn@codeaurora.org>
* usb: dwc3: Add maximum hw supported speed flagVamsi Krishna Samavedam2017-01-31
| | | | | | | | | | Maximum hardware supported speed flag limits the maximum speed of the usb controller to high or super. Adding this additional flag as maximum_speed flag can be changed from different sources such as power delivery stack. Change-Id: I18f414e822b5525fe848a48384fac102cdae7b03 Signed-off-by: Vamsi Krishna Samavedam <vskrishn@codeaurora.org>
* Merge "ARM: dts: msm: Add usb master clock rate in high speed mode for msm8998"Linux Build Service Account2017-01-30
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| * usb: dwc3: Update core clock rate based on USB port speed.Hemant Kumar2017-01-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Core clock rate can be reduced or increased based on operating speeds. Controller starts in Super Speed mode (higher core clock rate) and it will operate in super or high or full or low speed upon device connection. Update the core clock rate based on bus speed to allows system to operate in better low power state (such as SVS1/SVS2 based on system configuration). High Speed rate for core clock is programmed from dtsi. Super Speed rate will be used if High speed core clock rate is not provided for backward compatibility. Change-Id: I265149d34de19ab50bd7f106a670a7112bfae384 Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
* | usb: dwc3: Reset and initiate lpm while booting up with no usb cableHemant Kumar2017-01-26
|/ | | | | | | | | Reset and initiate controller and phy low power mode to bring them to known good state during boot up. This will avoid any leakage and makes sure that DP/DM lines are in high-z state. Change-Id: I55dbe8d42ce9e56046bd7c99e17c2ec6f368c9a6 Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
* Merge "USB: dwc3-msm: Set speed as high speed if no speed information"Linux Build Service Account2017-01-16
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| * USB: dwc3-msm: Set speed as high speed if no speed informationVijayavardhan Vennapusa2017-01-16
| | | | | | | | | | | | | | | | | | Speed is not notified in case of platforms having micro USB connector instead of USB type C connector. In this case, set speed as High speed only as by default only high speed is supported over micro USB ports. Change-Id: I6f29914ca9e2345157330651464b7a0c151f1f97 Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
* | usb: dwc3: replace %p with %pKVamsi Krishna Samavedam2017-01-05
|/ | | | | | | | | | | | | Format specifier %p can leak kernel addresses while not valuing the kptr_restrict system settings. When kptr_restrict is set to (1), kernel pointers printed using the %pK format specifier will be replaced with 0's. Debugging Note : &pK prints only Zeros as address. If you need actual address information, write 0 to kptr_restrict. echo 0 > /proc/sys/kernel/kptr_restrict Change-Id: Ib1f9a151e3cb186763541dc86cb5b67a7d739ece Signed-off-by: Vamsi Krishna Samavedam <vskrishn@codeaurora.org>
* Merge "ARM: dts: msm: Allow only wfi based on USB irq load for msmfalcon"Linux Build Service Account2016-12-21
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| * USB: dwc3-msm: Add support for voting for PM_QOS_LATENCYVijayavardhan Vennapusa2016-12-21
| | | | | | | | | | | | | | | | Add required changes to enable to vote for PM_QOS_LATENCY based on number of interrupts fired during certain duration. Change-Id: I92ace85ee7fd40c3f33f1b9f7bdd32469d990d84 Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
* | Merge "USB: dwc3-msm: Perform DBM config/unconfig under spinlock protection"Linux Build Service Account2016-12-20
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| * | USB: dwc3-msm: Perform DBM config/unconfig under spinlock protectionVijayavardhan Vennapusa2016-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a possibility of dwc3_msm_ep_queue() and msm_ep_unconfig() racing each other if suspend happens right after configured. This scenario will result in NOC error if start_xfer command gets queued after msm_ep_unconfig(). Hence fix the issue by adding spinlock protection for DBM endpoint configuration and unconfiguration. Change-Id: I3fd007647370250017c97faebffadb35afb7fc4d Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org> Signed-off-by: Chandana Kishori Chiluveru <cchiluve@codeaurora.org>
* | | Merge "USB: dwc3-msm: Disable DBM endpoint in msm_ep_unconfig if no req queued"Linux Build Service Account2016-12-20
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| * USB: dwc3-msm: Disable DBM endpoint in msm_ep_unconfig if no req queuedVijayavardhan Vennapusa2016-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | There is a chance that error might occur in connect_work before endless request is queued to USB controller and bails out. In this case, DBM endpoint will not be disabled and results in setendpoint config command timeouts after next connect and could cause usb endpoint enable fails. Fix this by disabling DBM endpoint corresponding to USB endpoint in msm_ep_unconfig() if there are no requests queued to USB endpoint. Change-Id: I5601d76c58263150a3ad5b026a8f2b10da087ba5 Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org> Signed-off-by: Chandana Kishori Chiluveru <cchiluve@codeaurora.org>
* | Merge "USB: dwc3-msm: Perform HW reinitialization on HC died error"Linux Build Service Account2016-12-20
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| * | USB: dwc3-msm: Perform HW reinitialization on HC died errorManu Gautam2016-12-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | USB core provides atomic notifier that can be used by platform drivers to perform hardware reset/recovery on HC died error. This error is fatal and requires complete hardware re-initialization. This will remove and add hcd again. CRs-fixed: 1048766 Change-Id: Ic889ef002717a8fa33e9b7c27fab14a8778bba89 Signed-off-by: Manu Gautam <mgautam@codeaurora.org> Signed-off-by: Chandana Kishori Chiluveru <cchiluve@codeaurora.org> Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
* | | Merge "ARM: dts: msm: Update MPM pin mappings for USB for msmfalcon"Linux Build Service Account2016-12-20
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| * | | Revert "USB: dwc3-msm: Enable power event irq in case of host bus suspend"Vijayavardhan Vennapusa2016-12-13
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 3dd2172dfecc ("USB: dwc3-msm: Enable power event irq in case of host bus suspend") is added to enable power_event_irq during host bus suspend. This is to map MPM pin for DM to power_event_irq to wakeup during system suspend in host mode. Currently MPM driver has support for mapping multiple MPM pins to single IRQ. Hence it is not required to enable power_event_irq during host bus suspend. Change-Id: I5c7d6b4d43baa0b387342a8bd261361a5c07fe23 Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
* | | Merge "USB: dwc3-msm: Disable Update xfer for DBM on ep disable or dequeue"Linux Build Service Account2016-12-19
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| * | USB: dwc3-msm: Disable Update xfer for DBM on ep disable or dequeueVijayavardhan Vennapusa2016-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable update xfer for DBM while configuring dbm endpoint and also clear update xfer before queueing end xfer command as part of endpoint disable as hardware programming guide. CRs-Fixed: 965207 Change-Id: Ib5ec650884ad06394280416ccf877c1ccce1eaaf Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org> Signed-off-by: Chandana Kishori Chiluveru <cchiluve@codeaurora.org>
* | | Merge "USB: dwc3: msm: Fail probe if core-clk-rate is not passed from dts"Linux Build Service Account2016-12-13
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| * | | USB: dwc3: msm: Fail probe if core-clk-rate is not passed from dtsVijayavardhan Vennapusa2016-12-12
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently USB driver is not failing probe if USB core-clk-rate property is not exist. This leads to USB enumeration failures across connect/ disconnect. Hence make core-clk-rate property mandatory and if in case not defined, fail the probe. Also Fail probe if extcon property not defined in case of OTG mode. Also return error if dwc3_core_pre_init() fails during dwc3-msm_resume() due to phy init fails and don't go ahead with setting up event buffers as event buffers allocation is done. Change-Id: I3927ad2f670e45acd10f8568857cf9f3434df657 Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
* | | Merge "USB: dwc3-msm: Check endpoint status and request queued or not first"Linux Build Service Account2016-12-13
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| * | USB: dwc3-msm: Check endpoint status and request queued or not firstVijayavardhan Vennapusa2016-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When function driver calls dwc3_msm_ep_queue() to queue endless request, first check endpoint status and whether any request already queued or not. If that is the case, return error. Else go ahead with queuing request to USB HW. This helps in resolving the crash seen when request is being queued again. Change-Id: I3d6a603c693d1df36719f57684ffad409e1a0e78 Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org> Signed-off-by: Chandana Kishori Chiluveru <cchiluve@codeaurora.org>
* | | Merge "USB: dwc3-msm: Initialize DBM ep before BAM pipe reset"Linux Build Service Account2016-12-13
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| * | USB: dwc3-msm: Initialize DBM ep before BAM pipe resetVijayavardhan Vennapusa2016-12-12
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | On new platforms, endpoint clock gating is added for dbm endpoints with Synopsys USB3.0 controller. This hardware feature requires initialization of DBM endpoint before BAM pipe reset for bam2bam mode data transfers working. Hence change sequence such that do DBM endpoint initialization first followed by BAM pipe reset and do start transfer as last operation. CRs-Fixed: 965207 Change-Id: Ib5bfd1a7d258fe336a4c9924850fc9223c1c81f6 Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org> Signed-off-by: Chandana Kishori Chiluveru <cchiluve@codeaurora.org>
* / usb: dwc3-msm: Set PROP_BOOST_CURRENT for direct attach devicesJack Pham2016-12-12
|/ | | | | | | | | | | | | | If PMIC provides boost power for VBUS in host mode, it may need to know the amount of current of an attached device in order to optimize for overall power consumption. We can pass the bMaxPower obtained from a device's configuration descriptor when it is attached. This only affects devices (including hubs) directly attached to the root port, as any device downstream of a hub will either consume part of the hub's budget or has external power. Change-Id: I1ad2cfecb7a2f6bdeaced29a1753cdc1bf3849db Signed-off-by: Jack Pham <jackp@codeaurora.org>
* USB: dwc3: msm: Add support for vote/devote aggre2_snoc_axi_clkVijayavardhan Vennapusa2016-12-02
| | | | | | | | | | It is required to put/get vote for aggre2_snoc_axi_clk before turning ON USB core clock for read/write transactions to be successful over NOC from USB->DDR. Hence add support for voting aggre2_snoc_axi_clk before enabling USB core clock as part of exiting low power mode. Change-Id: Icb17d65fbbe49d93971905948c3dc9ab17de152a Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
* Merge "USB: dwc3-msm: clear in_restart flag always in restart work"Linux Build Service Account2016-11-28
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| * USB: dwc3-msm: clear in_restart flag always in restart workVijayavardhan Vennapusa2016-11-25
| | | | | | | | | | | | | | | | | | | | | | | | Currenlty driver is clearing mdwc->inrestart flag only if vbus_active is high only after making sure USB entered low power mode. There is a chance cable is disconnected during execution of restart work and endup not clearing mdwc->in_restart flag if disconnect happens. Hence fix this by clearing mdwc->in_restart flag always irrespective of vbus_active set or cleared. Change-Id: I15fa1893c798946c7514bf8cb23773b5784e671e Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
* | Merge "USB: dwc3-msm: Fix issue related to error recovery for ERRATIC ERROR"Linux Build Service Account2016-11-28
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| * | USB: dwc3-msm: Fix issue related to error recovery for ERRATIC ERRORVijayavardhan Vennapusa2016-11-25
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | If ERRATIC event irq is triggered by USB controller, it requires to perform block reset USB controller as recovery mechanism as per SNPS data book. Error recovery happens through allowing USB entering low power mode and exit low power mode. We might see recovery failing as check for P3 state is true as part of suspend and results in USB not entering low power mode. Fix this issue by allowing USB enter low power mode in case of recovery flag mdwc->in_restart set. CRs-Fixed: 1060831 Change-Id: I41f935da3d4af1dd04eb4b3299e36a0f528633da Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
* / usb: dwc3-msm: Fix restart usb work functionalityAzhar Shaikh2016-11-24
|/ | | | | | | | | | | | | Commit 18cd808986ba101d ("usb: dwc3-msm: Make power collapse and power-on-reset mandatory") removed the device tree properties for power-collapse due to which the dwc3_restart_usb_work() which was supposed to do a full POR sequence by simulating a cable disconnection-reconnection sequence now only does a dbm reset. Fix this, so that dwc3_restart_usb_work(), does a full POR. CRs-Fixed: 975249 Change-Id: Iaabe9283ec80954a2e504a55f2b4cdf93ca8ae46 Signed-off-by: Azhar Shaikh <azhars@codeaurora.org>
* Merge "usb: dwc3: Turn on memory core and periphery upon resume"Linux Build Service Account2016-10-31
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| * usb: dwc3: Turn on memory core and periphery upon resumeHemant Kumar2016-10-27
| | | | | | | | | | | | | | | | | | | | | | Memory core and memory peripheral blocks should remain on upon host bus suspend otherwise XHCI controller fails to respond to XHCI commands upon host bus resume. These memory blocks will be turned off only upon stopping host mode or vbus off in device mode. Change-Id: I1f53c9536b6896111707b77954d2b6cf4d227db8 Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
* | USB: dwc3-msm: Disable pipe clock requirement for HS/FS only modeVijayavardhan Vennapusa2016-10-25
|/ | | | | | | | | | | | USB3 core expects pipe clock input for USB connection establishment and functionality working. In case of maximum speed of USB3 core set to HS/FS mode, it is required to disable pipe clock requirement and instead use UTMI clock from HS PHY as clock input. Hence disable this pipe clock requirement for the case, where maximum speed is set to FS as well. Change-Id: Ife9d6a16e1607b40c71eb1897947bf4645ac9561 Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
* dwc3-msm: Acquire lock for USB GSI endpoint related operationsMayank Rana2016-10-05
| | | | | | | | | | There is possibility where any control request for USB GSI endpint e.g. CLEAR_FEATURE racing against USB GSI endpoint operation. Hence acquire lock for USB GSI endpoint related operations which involves sending required USB commands for the endpoint operation. Change-Id: If14af809c443e12bd64e54910602c4aeeca4f0df Signed-off-by: Mayank Rana <mrana@codeaurora.org>
* Merge "usb: pd: Add support to set the maximum speed via extcon"Linux Build Service Account2016-09-30
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| * usb: dwc3: Add support to select maximum speed via extcon notificationHemant Kumar2016-09-19
| | | | | | | | | | | | | | | | | | | | | | Use extcon notification to select the maximum speed for host as well as for peripheral mode. Notification handler sets maximum speed based on the extcon cable state flag. This provides an option to start host or peripheral in high speed only mode and leave ss phy suspended. Change-Id: Ic48c661e68a293822d30cbd491e0fe6e46d385c9 Signed-off-by: Hemant Kumar <hemantk@codeaurora.org> Signed-off-by: Jack Pham <jackp@codeaurora.org>
* | usb: dwc3: fix overriding core clock rate to default maxVamsi Krishna Samavedam2016-09-28
|/ | | | | | | | | Fix the bug introduced by commit 82d4ec97786d ("usb: Add support for reset controller framework") which overrides the core clock rate from device tree. Change-Id: Ic3ef2229fa8552301e09dfb912e79e044a81324f Signed-off-by: Vamsi Krishna Samavedam <vskrishn@codeaurora.org>
* Merge "usb: dwc3-msm: Only set vbus_draw for SDP type"Linux Build Service Account2016-09-10
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| * usb: dwc3-msm: Only set vbus_draw for SDP typeJack Pham2016-08-19
| | | | | | | | | | | | | | | | | | | | | | | | | | When gadget driver sets VBUS current draw, this should only be applicable if the charger type is SDP. For other downstream types, such as CDP, it can draw up up to the maximum (1.5A) without having to follow the rules of configured/suspended current limits. Further, with Power Delivery role swap supported, it's possible the gadget (UFP) is a power source, so vbus_draw() should be no-op'ed. Change-Id: If7f8233a0eb2644e5534a51a4a4f65212d448382 Signed-off-by: Jack Pham <jackp@codeaurora.org>
* | usb: Add support for reset controller frameworkAmit Nischal2016-09-07
| | | | | | | | | | | | | | | | | | | | The current api which performs the clock reset is moved to use the reset framework, so support the changes in USB driver for the same. The reset framework requires to get reset handle and perform assert/deassert of the resets. Change-Id: Ifcde1c6af624294cbd1944eaa9b526dd6dcc51de Signed-off-by: Amit Nischal <anischal@codeaurora.org>
* | usb: dwc3: restart usb upon endpoint cmd timeoutHemant Kumar2016-08-26
|/ | | | | | | | | | | | Sometime endpoint command timeout happening after usb device enumeration. Controller stops responding to any endpoint commands afterwards. To recover from this condition restart usb by simulating vbus off and on except for end transfer command. Also increase the command timeout from 1500us to 3000us. Change-Id: I7c1833d844fd432b33158686361e24e66a2fd92c Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
* Merge "usb: dwc3: Use clock API to control the memory power states"Linux Build Service Account2016-08-13
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