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path: root/drivers/usb/cdns3
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2020-10-02usb: cdns3: gadget: using correct sg operationsPeter Chen1-7/+15
It needs to use request->num_mapped_sgs to indicate mapped sg number, the request->num_sgs is the sg number before the mapping. These two entries have different values for the platforms which iommu or swiotlb is used. Besides, it needs to use correct sg APIs for mapped sg list for TRB assignment. Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-10-02usb: cdns3: gadget: fix possible memory leakPeter Chen1-5/+15
If cdns3_gadget_start is failed, it never frees cdns3_device structure. Meanwhile, there is no release function for gadget device, it causes there is no sync with driver core. To fix this, we add release function for gadget device, and free cdns3_device structure at there. Meanwhile, With the new UDC core APIs, we could work with driver core better to handle memory leak issue. Reviewed-by: Greg Kroah-Hartman <[email protected]> Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-10-02usb: cdns3: gadget: fix some endian issuesPeter Chen1-30/+30
It is found by sparse. Reported-by: kbuild test robot <[email protected]> Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-10-02usb: cdns3: gadget: move wait configuration operationPeter Chen2-6/+9
After commit f4cfe5ce607d ("usb: cdns3: gadget: improve the set_configuration handling"), the software will inform the hardware the request has finished at cdns3_ep0_complete_setup. The configuration set bit is only set after request has finished, so it needs to move waiting operation after that. Meanwhile, if it is timeout, it will show warning message and return error. Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-10-02usb: cdns3: drd: call PHY .set_mode accordinglyPeter Chen1-0/+5
Some PHYs may need to enter related mode, and do some settings. Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-10-02usb: cdns3: gadget: clear the interrupt status when disconnect the hostPeter Chen1-2/+5
It is meaningless to handle any interrupts after disconnecting with host Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-10-02usb: cdns3: gadget: set fast access bitPeter Chen1-0/+3
Below is the recommendation from Cadence designer: Using this bit to be sure that PHY clock is keeping up in active state. It's good to keep Fast Access bit enabled as long as there is any access to USB register. It is used to fix the potential ARM core hang when visit controller register after DEVDS (.pullup is cleared) is set, the threaded irq may be scheduled at that time. Cc: Pawel Laszczak <[email protected]> Reviewed-by: Jun Li <[email protected]> Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-10-02usb: cdns3: core: quit if it uses role switch classPeter Chen1-0/+4
If the board uses role switch class for switching the role, it should not depends on SoC OTG hardware siginal any more, so quit early. Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-10-02usb: cdns3: Enable workaround for USB2.0 PHY Rx compliance test PHY lockupPawel Laszczak4-1/+19
USB2.0 PHY hangs in Rx Compliance test when the incoming packet amplitude is varied below and above the Squelch Level of Receiver during the active packet multiple times. Version 1 of the controller allows PHY to be reset when RX fail condition is detected to work around the above issue. This feature is disabled by default and needs to be enabled using a bit from the newly added PHYRST_CFG register. This patch enables the workaround. There is no way to know controller version before device controller is started and the workaround needs to be applied for both host and device modes, so we rely on a DT property do decide when to apply the workaround. Signed-off-by: Pawel Laszczak <[email protected]> Signed-off-by: Roger Quadros <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-10-02usb: cdns3: imx: add glue layer runtime pm implementationPeter Chen1-5/+186
Add imx glue layer runtime pm implementation, and the runtime pm is default off. Reviewed-by: Pawel Laszczak <[email protected]> Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-10-02usb: cdns3: add runtime PM supportPeter Chen5-17/+166
Introduce runtime PM and wakeup interrupt handler for cdns3, the runtime PM is default off since other cdns3 may not implement glue layer support for runtime PM. One typical wakeup event use case is xHCI runtime suspend will clear USBCMD.RS bit, after that the xHCI will not trigger any interrupts, so its parent (cdns core device) needs to resume xHCI device when any (wakeup) events occurs at host port. When the controller is in low power mode, the lpm flag will be set. The interrupt triggered later than lpm flag is set considers as wakeup interrupt and handled at cdns_wakeup_irq. Once the wakeup occurs, it first disables interrupt to avoid later interrupt occurrence since the controller is in low power mode at that time, and access registers may be invalid at that time. At wakeup handler, it will call pm_request_resume to wakeup xHCI device, and at runtime resume handler, it will enable interrupt again. The API platform_suspend is introduced for glue layer to implement platform specific PM sequence. Reviewed-by: Pawel Laszczak <[email protected]> Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-10-02usb: cdns3: introduce set_phy_power_on{off} APIsPeter Chen1-15/+28
Since we have both USB2 and USB3 PHYs for cdns3 controller, it is better we have unity APIs to handle both USB2 and USB3's power, it could simplify code for error handling and further power management implementation. Reviewed-by: Pawel Laszczak <[email protected]> Reviewed-by: Jun Li <[email protected]> Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-09-24usb: cdns3: gadget: free interrupt after gadget has deletedPeter Chen1-1/+1
The interrupt may occur during the gadget deletion, it fixes the below oops. [ 2394.974604] configfs-gadget gadget: suspend [ 2395.042578] configfs-gadget 5b130000.usb: unregistering UDC driver [g1] [ 2395.382562] irq 229: nobody cared (try booting with the "irqpoll" option) [ 2395.389362] CPU: 0 PID: 301 Comm: kworker/u12:6 Not tainted 5.8.0-rc3-next-20200703-00060-g2f13b83cbf30-dirty #456 [ 2395.399712] Hardware name: Freescale i.MX8QM MEK (DT) [ 2395.404782] Workqueue: 2-0051 tcpm_state_machine_work [ 2395.409832] Call trace: [ 2395.412289] dump_backtrace+0x0/0x1d0 [ 2395.415950] show_stack+0x1c/0x28 [ 2395.419271] dump_stack+0xbc/0x118 [ 2395.422678] __report_bad_irq+0x50/0xe0 [ 2395.426513] note_interrupt+0x2cc/0x38c [ 2395.430355] handle_irq_event_percpu+0x88/0x90 [ 2395.434800] handle_irq_event+0x4c/0xe8 [ 2395.438640] handle_fasteoi_irq+0xbc/0x168 [ 2395.442740] generic_handle_irq+0x34/0x48 [ 2395.446752] __handle_domain_irq+0x68/0xc0 [ 2395.450846] gic_handle_irq+0x64/0x150 [ 2395.454596] el1_irq+0xb8/0x180 [ 2395.457733] __do_softirq+0xac/0x3b8 [ 2395.461310] irq_exit+0xc0/0xe0 [ 2395.464448] __handle_domain_irq+0x6c/0xc0 [ 2395.468540] gic_handle_irq+0x64/0x150 [ 2395.472295] el1_irq+0xb8/0x180 [ 2395.475436] _raw_spin_unlock_irqrestore+0x14/0x48 [ 2395.480232] usb_gadget_disconnect+0x120/0x140 [ 2395.484678] usb_gadget_remove_driver+0xb4/0xd0 [ 2395.489208] usb_del_gadget+0x6c/0xc8 [ 2395.492872] cdns3_gadget_exit+0x5c/0x120 [ 2395.496882] cdns3_role_stop+0x60/0x90 [ 2395.500634] cdns3_role_set+0x64/0xd8 [ 2395.504301] usb_role_switch_set_role.part.0+0x3c/0x90 [ 2395.509444] usb_role_switch_set_role+0x20/0x30 [ 2395.513978] tcpm_mux_set+0x60/0xf8 [ 2395.517470] tcpm_reset_port+0xa4/0xf0 [ 2395.521222] tcpm_detach.part.0+0x44/0x50 [ 2395.525227] tcpm_state_machine_work+0x8b0/0x2360 [ 2395.529932] process_one_work+0x1c8/0x470 [ 2395.533939] worker_thread+0x50/0x420 [ 2395.537603] kthread+0x148/0x168 [ 2395.540830] ret_from_fork+0x10/0x18 [ 2395.544399] handlers: [ 2395.546671] [<000000008dea28da>] cdns3_wakeup_irq [ 2395.551375] [<000000009fee5c61>] cdns3_drd_irq threaded [<000000005148eaec>] cdns3_drd_thread_irq [ 2395.560255] Disabling IRQ #229 [ 2395.563454] configfs-gadget gadget: unbind function 'Mass Storage Function'/000000000132f835 [ 2395.563657] configfs-gadget gadget: unbind [ 2395.563917] udc 5b130000.usb: releasing '5b130000.usb' Fixes: 7733f6c32e36 ("usb: cdns3: Add Cadence USB3 DRD Driver") Cc: <[email protected]> Acked-by: Roger Quadros <[email protected]> Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-29usb: cdns3: convert to devm_platform_ioremap_resource_bynameChunfeng Yun1-2/+1
Use devm_platform_ioremap_resource_byname() to simplify code Cc: Peter Chen <[email protected]> Reviewed-by: Peter Chen <[email protected]> Signed-off-by: Chunfeng Yun <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-07-24usb: cdns3: drd: simplify *switch_gadet and *switch_hostPawel Laszczak4-62/+76
Patch split function cdns3_drd_switch_gadget and cdns3_drd_switch_host into: - cdns3_drd_host_on - cdns3_drd_host_off - cdns3_drd_gadget_on - cdns3_drd_gadgett_off These functions don't have any shared code so it's better to have smaller, faster and easier functions. Signed-off-by: Pawel Laszczak <[email protected]> Reviewed-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-24usb: cdns3: core: removed overwriting some error codePawel Laszczak1-6/+2
Some error code can be preserved, so we can remove overwriting error code returned by some functions. Signed-off-by: Pawel Laszczak <[email protected]> Reviewed-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-24usb: cdns3: core: removed 'goto not_otg'Pawel Laszczak1-11/+9
Patch removes 'goto not_otg' instruction from cdns3_hw_role_state_machine function. Signed-off-by: Pawel Laszczak <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-24usb: cdns3: Added CDNS3_ID_PERIPHERAL and CDNS3_ID_HOSTPawel Laszczak2-2/+5
Patch adds 2 definitions that make it easier to understand the code. Reviewed-by: Peter Chen <[email protected]> Signed-off-by: Pawel Laszczak <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-24usb: cdns3: drd: changed return type from int to boolPawel Laszczak2-10/+10
Patch changes return type from int to bool for cdns3_is_host and cdns3_is_device functions. Reviewed-by: Peter Chen <[email protected]> Signed-off-by: Pawel Laszczak <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-24usb: cdns3: drd: return IRQ_NONE explicitly.Pawel Laszczak1-2/+2
IRQ_NONE can be returned indirect. Reviewed-by: Peter Chen <[email protected]> Signed-off-by: Pawel Laszczak <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-24usb: cnds3: drd: deleted !=Pawel Laszczak1-1/+1
Patch deletes unnecessary != from condition statement in cdns3_drd_init function. Reviewed-by: Peter Chen <[email protected]> Signed-off-by: Pawel Laszczak <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-24usb: cdns3: drd: removed not needed variables initializationPawel Laszczak2-12/+11
Patch remove some variables initialization from core.c and drd.c file. Reviewed-by: Peter Chen <[email protected]> Signed-off-by: Pawel Laszczak <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-24usb: cdns3: core: removed cdns3_get_current_role_driver functionPawel Laszczak1-7/+0
Function is not used in driver so it can be removed. Signed-off-by: Pawel Laszczak <[email protected]> Reviewed-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-24usb: cdns3: gadget: always zeroed TRB buffer when enable endpointPeter Chen1-1/+2
During the endpoint dequeue operation, it changes dequeued TRB as link TRB, when the endpoint is disabled and re-enabled, the DMA fetches the TRB before the link TRB, after it handles current TRB, the DMA pointer will advance to the TRB after link TRB, but enqueue and dequene variables don't know it due to no hardware interrupt at the time, when the next TRB is added to link TRB position, the DMA will not handle this TRB due to its pointer is already at the next TRB. See the trace log like below: file-storage-675 [001] d..1 86.585657: usb_ep_queue: ep0: req 00000000df9b3a4f length 0/0 sgs 0/0 stream 0 zsI status 0 --> 0 file-storage-675 [001] d..1 86.585663: cdns3_ep_queue: ep1out: req: 000000002ebce364, req buff 00000000f5bc96b4, length: 0/1024 zsi, status: -115, trb: [start:0, end:0: virt addr (null)], flags:0 SID: 0 file-storage-675 [001] d..1 86.585671: cdns3_prepare_trb: ep1out: trb 000000007f770303, dma buf: 0xbd195800, size: 1024, burst: 128 ctrl: 0x00000425 (C=1, T=0, ISP, IOC, Normal) SID:0 LAST_SID:0 file-storage-675 [001] d..1 86.585676: cdns3_ring: Ring contents for ep1out: Ring deq index: 0, trb: 000000007f770303 (virt), 0xc4003000 (dma) Ring enq index: 1, trb: 0000000049c1ba21 (virt), 0xc400300c (dma) free trbs: 38, CCS=1, PCS=1 @0x00000000c4003000 bd195800 80020400 00000425 @0x00000000c400300c c4003018 80020400 00001811 @0x00000000c4003018 bcfcc000 0000001f 00000426 @0x00000000c4003024 bcfce800 0000001f 00000426 ... irq/144-5b13000-698 [000] d... 87.619286: usb_gadget_giveback_request: ep1in: req 0000000031b832eb length 13/13 sgs 0/0 stream 0 zsI status 0 --> 0 file-storage-675 [001] d..1 87.619287: cdns3_ep_queue: ep1out: req: 000000002ebce364, req buff 00000000f5bc96b4, length: 0/1024 zsi, status: -115, trb: [start:0, end:0: virt addr 0x80020400c400300c], flags:0 SID: 0 file-storage-675 [001] d..1 87.619294: cdns3_prepare_trb: ep1out: trb 0000000049c1ba21, dma buf: 0xbd198000, size: 1024, burst: 128 ctrl: 0x00000425 (C=1, T=0, ISP, IOC, Normal) SID:0 LAST_SID:0 file-storage-675 [001] d..1 87.619297: cdns3_ring: Ring contents for ep1out: Ring deq index: 1, trb: 0000000049c1ba21 (virt), 0xc400300c (dma) Ring enq index: 2, trb: 0000000059b34b67 (virt), 0xc4003018 (dma) free trbs: 38, CCS=1, PCS=1 @0x00000000c4003000 bd195800 0000001f 00000427 @0x00000000c400300c bd198000 80020400 00000425 @0x00000000c4003018 bcfcc000 0000001f 00000426 @0x00000000c4003024 bcfce800 0000001f 00000426 ... file-storage-675 [001] d..1 87.619305: cdns3_doorbell_epx: ep1out, ep_trbaddr c4003018 file-storage-675 [001] .... 87.619308: usb_ep_queue: ep1out: req 000000002ebce364 length 0/1024 sgs 0/0 stream 0 zsI status -115 --> 0 irq/144-5b13000-698 [000] d..1 87.619315: cdns3_epx_irq: IRQ for ep1out: 01000c80 TRBERR , ep_traddr: c4003018 ep_last_sid: 00000000 use_streams: 0 irq/144-5b13000-698 [000] d..1 87.619395: cdns3_usb_irq: IRQ 00000008 = Hot Reset Fixes: f616c3bda47e ("usb: cdns3: Fix dequeue implementation") Cc: stable <[email protected]> Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-24usb: cdns3: ep0: delete the unnecessary operationPeter Chen1-3/+0
It doesn't need to enable/disable L1 on the fly for EP0 transfer, we only need to enable L1 after SET_CONFIGURATION. This code may be introduced by careless. Cc: Pawel Laszczak <[email protected]> Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-24usb: cdns3: gadget: improve the set_configuration handlingPeter Chen2-13/+5
- Delete the duplicated EP_CMD_ERDY and EP_CMD_REQ_CMPL setting - Prepare the next setup before setting EP_CMD_ERDY and EP_CMD_REQ_CMPL, it could avoid a bug that DMA hang at EP0 OUT for DEV_VER_NXP_V1 - Delete the duplicated cdns3_set_hw_configuration calling at cdns3_req_ep0_set_configuration, the composite.c will handle this request, and call .ep0_queue back, and at .ep_queue it will call cdns3_set_hw_configuration. - Move cdns3_allow_enable_l1 into cdns3_set_hw_configuration since it is part of this function. Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-21USB: Replace HTTP links with HTTPS onesAlexander A. Klimov1-1/+1
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-07-20Merge 5.8-rc6 into usb-nextGreg Kroah-Hartman2-18/+18
We need the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-07-10usb: Use fallthrough pseudo-keywordGustavo A. R. Silva1-2/+2
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <[email protected]> Link: https://lore.kernel.org/r/20200707195607.GA4198@embeddedor Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-07-09usb: cdns3: trace: fix some endian issuesPeter Chen1-3/+3
It is found by sparse. Reported-by: kbuild test robot <[email protected]> Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-09usb: cdns3: ep0: fix some endian issuesPeter Chen1-15/+15
It is found by sparse. Reported-by: kbuild test robot <[email protected]> Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-07-03usb: cdns3: ep0: Move 'zlp' description to appropriate function headerLee Jones1-1/+1
'zlp' was documented, but in the wrong place. Fixes the following W=1 kernel build warning(s): drivers/usb/cdns3/ep0.c:36: warning: Function parameter or member 'zlp' not described in 'cdns3_ep0_run_transfer' drivers/usb/cdns3/ep0.c:705: warning: Excess function parameter 'zlp' description in 'cdns3_gadget_ep0_queue' Cc: Pawel Laszczak <[email protected]> Cc: Pawel Jez <[email protected]> Cc: Peter Chen <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-07-03usb: cdns3: gadget: Fix a bunch of kernel doc issuesLee Jones1-5/+6
Mainline misspelled function argument descriptions. Also one formatting issue with a missing '@' identifier. Fixes the following W=1 build warnings: drivers/usb/cdns3/gadget.c:653: warning: Function parameter or member 'priv_ep' not described in 'cdns3_wa2_descmissing_packet' drivers/usb/cdns3/gadget.c:653: warning: Excess function parameter 'priv_dev' description in 'cdns3_wa2_descmissing_packet' drivers/usb/cdns3/gadget.c:1088: warning: Function parameter or member 'request' not described in 'cdns3_ep_run_transfer' drivers/usb/cdns3/gadget.c:2574: warning: Function parameter or member 'priv_ep' not described in '__cdns3_gadget_ep_set_halt' drivers/usb/cdns3/gadget.c:2574: warning: Excess function parameter 'ep' description in '__cdns3_gadget_ep_set_halt' drivers/usb/cdns3/gadget.c:2595: warning: Function parameter or member 'priv_ep' not described in '__cdns3_gadget_ep_clear_halt' drivers/usb/cdns3/gadget.c:2595: warning: Excess function parameter 'ep' description in '__cdns3_gadget_ep_clear_halt' drivers/usb/cdns3/gadget.c:2898: warning: Function parameter or member 'priv_dev' not described in 'cdns3_init_eps' drivers/usb/cdns3/gadget.c:2898: warning: Excess function parameter 'cdns3' description in 'cdns3_init_eps' drivers/usb/cdns3/gadget.c:3210: warning: Function parameter or member 'cdns' not described in 'cdns3_gadget_init' Cc: Pawel Laszczak <[email protected]> Cc: Pawel Jez <[email protected]> Cc: Peter Chen <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-07-03usb: cdns3: ep0: Fix a bunch of kerneldoc issuesLee Jones1-3/+9
Add some missing function argument descriptions for 'ep', 'desc' and 'zlp', and correct spelling/bitrot issues surrounding the correct spelling of present args. Fixes the following W=1 warnings: drivers/usb/cdns3/ep0.c:36: warning: Function parameter or member 'zlp' not described in 'cdns3_ep0_run_transfer' drivers/usb/cdns3/ep0.c:236: warning: Function parameter or member 'ctrl' not described in 'cdns3_req_ep0_get_status' drivers/usb/cdns3/ep0.c:236: warning: Excess function parameter 'ctrl_req' description in 'cdns3_req_ep0_get_status' drivers/usb/cdns3/ep0.c:411: warning: Function parameter or member 'ctrl' not described in 'cdns3_req_ep0_handle_feature' drivers/usb/cdns3/ep0.c:411: warning: Excess function parameter 'ctrl_req' description in 'cdns3_req_ep0_handle_feature' drivers/usb/cdns3/ep0.c:661: warning: Function parameter or member 'ep' not described in 'cdns3_gadget_ep0_enable' drivers/usb/cdns3/ep0.c:661: warning: Function parameter or member 'desc' not described in 'cdns3_gadget_ep0_enable' drivers/usb/cdns3/ep0.c:671: warning: Function parameter or member 'ep' not described in 'cdns3_gadget_ep0_disable' drivers/usb/cdns3/ep0.c:867: warning: Function parameter or member 'priv_ep' not described in 'cdns3_init_ep0' drivers/usb/cdns3/ep0.c:867: warning: Excess function parameter 'ep_priv' description in 'cdns3_init_ep0' Cc: Pawel Laszczak <[email protected]> Cc: Pawel Jez <[email protected]> Cc: Peter Chen <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-07-03usb: cdns3: core: Fix incorrect formatting and misspelled function arg docsLee Jones1-4/+4
There are 3 misspellings and 1 incorrect format used in this file's kerneldoc function headers. Fixing them squashes the following W=1 kernel build warnings: drivers/usb/cdns3/gadget.c:653: warning: Function parameter or member 'priv_ep' not described in 'cdns3_wa2_descmissing_packet' drivers/usb/cdns3/gadget.c:653: warning: Excess function parameter 'priv_dev' description in 'cdns3_wa2_descmissing_packet' drivers/usb/cdns3/gadget.c:1088: warning: Function parameter or member 'request' not described in 'cdns3_ep_run_transfer' drivers/usb/cdns3/gadget.c:2574: warning: Function parameter or member 'priv_ep' not described in '__cdns3_gadget_ep_set_halt' drivers/usb/cdns3/gadget.c:2574: warning: Excess function parameter 'ep' description in '__cdns3_gadget_ep_set_halt' drivers/usb/cdns3/gadget.c:2595: warning: Function parameter or member 'priv_ep' not described in '__cdns3_gadget_ep_clear_halt' drivers/usb/cdns3/gadget.c:2595: warning: Excess function parameter 'ep' description in '__cdns3_gadget_ep_clear_halt' drivers/usb/cdns3/gadget.c:2898: warning: Function parameter or member 'priv_dev' not described in 'cdns3_init_eps' drivers/usb/cdns3/gadget.c:2898: warning: Excess function parameter 'cdns3' description in 'cdns3_init_eps' drivers/usb/cdns3/gadget.c:3210: warning: Function parameter or member 'cdns' not described in 'cdns3_gadget_init' Cc: Pawel Laszczak <[email protected]> Cc: Peter Chen <[email protected]> Cc: Roger Quadros <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-07-01usb: cdns3: gadget: use unsigned int for 32-bit numberPeter Chen1-1/+1
If it is 'int', it can't stands for the highest bit for 32-bit number, since the largest 'int' is 0x7fffffff. Reviewed-by: Jun Li <[email protected]> Signed-off-by: Peter Chen <[email protected]> Acked-by: Roger Quadros <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-07-01usb: cdns3: gadget: unsigned int is dereferenced as a wider unsigned longPeter Chen1-2/+2
It is reported by Coverity scan, and fixed it by declare the reg as unsigned long. Reviewed-by: Jun Li <[email protected]> Signed-off-by: Peter Chen <[email protected]> Acked-by: Roger Quadros <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-07-01usb: cdns3: ep0: delete the duplicate codePeter Chen1-1/+1
The value '0' is duplicated with USB_DIR_OUT Signed-off-by: Peter Chen <[email protected]> Acked-by: Roger Quadros <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-06-29Merge 5.8-rc3 into usb-nextGreg Kroah-Hartman2-5/+7
We want the USB fixes in here, and this resolves a merge issue found in linux-next. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-06-27usb: cdns3: gadget: Replace trace_printk by dev_dbgNicolas Boichat1-1/+1
trace_printk should not be used in production code, replace it call with dev_dbg. Signed-off-by: Nicolas Boichat <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-06-24usb: cdns3: ep0: add spinlock for cdns3_check_new_setupPeter Chen1-3/+4
The other thread may access other endpoints when the cdns3_check_new_setup is handling, add spinlock to protect it. Fixes: 7733f6c32e36 ("usb: cdns3: Add Cadence USB3 DRD Driver") Cc: <[email protected]> Reviewed-by: Pawel Laszczak <[email protected]> Signed-off-by: Peter Chen <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-06-24usb: cdns3: trace: using correct dir valuePeter Chen1-1/+1
It should use the correct direction value from register, not depends on previous software setting. It fixed the EP number wrong issue at trace when the TRBERR interrupt occurs for EP0IN. When the EP0IN IOC has finished, software prepares the setup packet request, the expected direction is OUT, but at that time, the TRBERR for EP0IN may occur since it is DMULT mode, the DMA does not stop until TRBERR has met. Fixes: 7733f6c32e36 ("usb: cdns3: Add Cadence USB3 DRD Driver") Cc: <[email protected]> Reviewed-by: Pawel Laszczak <[email protected]> Signed-off-by: Peter Chen <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-06-24usb: cdns3: ep0: fix the test mode set incorrectlyPeter Chen1-1/+2
The 'tmode' is ctrl->wIndex, changing it as the real test mode value for register assignment. Fixes: 7733f6c32e36 ("usb: cdns3: Add Cadence USB3 DRD Driver") Cc: <[email protected]> Reviewed-by: Jun Li <[email protected]> Reviewed-by: Pawel Laszczak <[email protected]> Signed-off-by: Peter Chen <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-06-24USB: ch9: add "USB_" prefix in front of TEST definesGreg Kroah-Hartman1-4/+4
For some reason, the TEST_ defines in the usb/ch9.h files did not have the USB_ prefix on it, making it a bit confusing when reading the file, as well as not the nicest thing to do in a uapi file. So fix that up and add the USB_ prefix on to them, and fix up all in-kernel usages. This included deleting the duplicate copy in the net2272.h file. Cc: Felipe Balbi <[email protected]> Cc: Michal Simek <[email protected]> Cc: Mathias Nyman <[email protected]> Cc: Pawel Laszczak <[email protected]> Cc: YueHaibing <[email protected]> Cc: Nathan Chancellor <[email protected]> Cc: Jason Yan <[email protected]> Cc: Jia-Ju Bai <[email protected]> Cc: Stephen Boyd <[email protected]> Cc: Christophe JAILLET <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Jules Irenge <[email protected]> Cc: Alan Stern <[email protected]> Cc: Thinh Nguyen <[email protected]> Cc: Rob Gill <[email protected]> Cc: Macpaul Lin <[email protected]> Acked-by: Minas Harutyunyan <[email protected]> Acked-by: Bin Liu <[email protected]> Acked-by: Chunfeng Yun <[email protected]> Acked-by: Peter Chen <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-05-25Merge tag 'usb-for-v5.8' of ↵Greg Kroah-Hartman3-15/+8
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next Felipe writes: USB: changes for v5.8 merge window Rather busy cycle. We have a total 99 non-merge commits going into v5.8 merge window. The majority of the changes are in dwc3 this around (31.7% of all changes). It's composed mostly Thinh's recent updates to get dwc3 to behave correctly with stream transfers. We have also have Roger's for Keystone platforms and Neil's updates for the meson glue layer. Apart from those, we have the usual set of non-critical fixes, new device IDs, spelling fixes all over the place. Signed-off-by: Felipe Balbi <[email protected]> * tag 'usb-for-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb: (99 commits) usb: dwc3: keystone: Turn on USB3 PHY before controller dt-bindings: usb: ti,keystone-dwc3.yaml: Add USB3.0 PHY property dt-bindings: usb: convert keystone-usb.txt to YAML usb: dwc3: gadget: Check for prepared TRBs usb: gadget: Fix issue with config_ep_by_speed function usb: cdns3: ep0: delete the redundant status stage usb: dwc2: Update Core Reset programming flow. usb: gadget: fsl: Fix a wrong judgment in fsl_udc_probe() usb: gadget: fix potential double-free in m66592_probe. usb: cdns3: Fix runtime PM imbalance on error usb: gadget: lpc32xx_udc: don't dereference ep pointer before null check usb: dwc3: Increase timeout for CmdAct cleared by device controller USB: dummy-hcd: use configurable endpoint naming scheme usb: cdns3: gadget: assign interrupt number to USB gadget structure usb: gadget: core: sync interrupt before unbind the udc arm64: dts: qcom: sc7180: Add interconnect properties for USB arm64: dts: qcom: sdm845: Add interconnect properties for USB dt-bindings: usb: qcom,dwc3: Introduce interconnect properties for Qualcomm DWC3 driver ARM: dts: at91: Remove the USB EP child node dt-bindings: usb: atmel: Mark EP child node as deprecated ...
2020-05-25usb: cdns3: ep0: delete the redundant status stagePeter Chen1-7/+0
Each setup stage will prepare status stage at cdns3_ep0_setup_phase, it doesn't need to add extra status stage for test mode handling, otherwise, the controller can't enter the test mode. Through the Lecroy bus analyzer log, the controller will always wait status stage even it is prepared by software later than the test mode is set by software. If we comment out the status stage at cdns3_ep0_setup_phase, the controller will not enter test mode even the test mode is set beforehand. Reviewed-by: Pawel Laszczak <[email protected]> Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-05-25usb: cdns3: Fix runtime PM imbalance on errorDinghao Liu1-2/+1
pm_runtime_get_sync() increments the runtime PM usage counter even when it returns an error code. Thus a pairing decrement is needed on the error handling path to keep the counter balanced. Reviewed-by: Peter Chen <[email protected]> Signed-off-by: Dinghao Liu <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-05-25usb: cdns3: gadget: assign interrupt number to USB gadget structurePeter Chen1-0/+1
Assign interrupt number to USB gadget structure. Reviewed-by: Jun Li <[email protected]> Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-05-25usb: cdns3: change dev_info to dev_dbg for debug messagePeter Chen2-3/+3
During device mode initialization, lots of device information are printed to console, see below. Change them as debug message. cdns-usb3 5b130000.cdns3: Initialized ep0 support: cdns-usb3 5b130000.cdns3: Initialized ep1out support: BULK, INT ISO cdns-usb3 5b130000.cdns3: Initialized ep2out support: BULK, INT ISO cdns-usb3 5b130000.cdns3: Initialized ep3out support: BULK, INT ISO cdns-usb3 5b130000.cdns3: Initialized ep4out support: BULK, INT ISO cdns-usb3 5b130000.cdns3: Initialized ep5out support: BULK, INT ISO cdns-usb3 5b130000.cdns3: Initialized ep6out support: BULK, INT ISO cdns-usb3 5b130000.cdns3: Initialized ep7out support: BULK, INT ISO cdns-usb3 5b130000.cdns3: Initialized ep1in support: BULK, INT ISO cdns-usb3 5b130000.cdns3: Initialized ep2in support: BULK, INT ISO cdns-usb3 5b130000.cdns3: Initialized ep3in support: BULK, INT ISO cdns-usb3 5b130000.cdns3: Initialized ep4in support: BULK, INT ISO cdns-usb3 5b130000.cdns3: Initialized ep5in support: BULK, INT ISO cdns-usb3 5b130000.cdns3: Initialized ep6in support: BULK, INT ISO cdns-usb3 5b130000.cdns3: Initialized ep7in support: BULK, INT ISO Reviewed-by: Roger Quadros <[email protected]> Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
2020-05-25usb: cdns3: change "cdsn3" to"cdns3"Peter Chen1-5/+3
And delete cdsn3_hw_role_state_machine declare which doesn't be needed. Reviewed-by: Roger Quadros <[email protected]> Signed-off-by: Peter Chen <[email protected]> Signed-off-by: Felipe Balbi <[email protected]>
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