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path: root/drivers/usb
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2016-04-26usb: host: xhci: plat: move mvebu init_quirk() to xhci_plat_setup()Felipe Balbi
xhci_plat_setup() is the rightful place for xhci_mvebu_mbus_init_quirk(), so let's move it there in order to make it simpler to get rid of xhci_plat_type_is() later on. Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usb: xhci: plat: add ->plat_start() and ->init_quirk() methodsFelipe Balbi
these two methods will be used to hide platform-specific details so we can get rid of xhci_plat_type_is() in a later patch. Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usb: host: xhci: rcar: retire use of xhci_plat_type_is()Felipe Balbi
We're preparing to remove xhci_plat_type_is() in favor of a better approach where we define function pointers ahead of time. This will let us make assumptions about which platforms we're running on and which platform-specific functions we should call. Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> [delete extra comma in function parameters -Mathias] Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usb: xhci: remove duplicate code of interval checkingAlexandr Ivanov
Move duplicate code from xhci_queue_intr_tx() and xhci_queue_isoc_tx_prepare() to the check_interval() function. Signed-off-by: Alexandr Ivanov <alexandr.sky@gmail.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usb: xhci: remove duplicate function xhci_urb_to_transfer_ringAlexandr Ivanov
Remove duplicate function xhci_urb_to_transfer_ring from xhci.c. We have same function in xhci-ring.c. Signed-off-by: Alexandr Ivanov <alexandr.sky@gmail.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usb: xhci: merge xhci_queue_bulk_tx and queue_bulk_sg_tx functionsAlexandr Ivanov
In drivers/usb/host/xhci-ring.c there are two functions (xhci_queue_bulk_tx and queue_bulk_sg_tx) that are very similar, so a lot of code duplication. This patch merges these functions into to one xhci_queue_bulk_tx. Also counting the needed TRBs is merged and refactored. Signed-off-by: Alexandr Ivanov <alexandr.sky@gmail.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26drivers: usb: core: Minimize irq disabling in usb_sg_cancel()David Mosberger
Restructure usb_sg_cancel() so we don't have to disable interrupts while cancelling the URBs. Suggested-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: David Mosberger <davidm@egauge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26drivers: usb: core: Don't disable irqs in usb_sg_wait() during URB submit.David Mosberger
usb_submit_urb() may take quite long to execute. For example, a single sg list may have 30 or more entries, possibly leading to that many calls to DMA-map pages. This can cause interrupt latency of several hundred micro-seconds. Avoid the problem by releasing the io->lock spinlock and re-enabling interrupts before calling usb_submit_urb(). This opens races with usb_sg_cancel() and sg_complete(). Handle those races by using usb_block_urb() to stop URBs from being submitted after usb_sg_cancel() or sg_complete() with error. Note that usb_unlink_urb() is guaranteed to return -ENODEV if !io->urbs[i]->dev and since the -ENODEV case is already handled, we don't have to check for !io->urbs[i]->dev explicitly. Before this change, reading 512MB from an ext3 filesystem on a USB memory stick showed a throughput of 12 MB/s with about 500 missed deadlines. With this change, reading the same file gave the same throughput but only one or two missed deadlines. Signed-off-by: David Mosberger <davidm@egauge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usbip: vudc: Add vudc to KconfigIgor Kotrasinski
Add the driver to Kconfig to make it visible in menuconfig and allow people to compile it. This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com> Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usbip: vudc: Add SysFS infrastructure for VUDCIgor Kotrasinski
Add sysfs attributes to allow controlling vudc from usbip tools. dev_desc - device descriptor of current gadget. This is required to be consisten with current usbip protocol and allow to list exportable devices on given machine. usbip_sockfd - allows to pass socket to kernel to start usbip transfer. usbip_status - currnent status of device This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com> Signed-off-by: Karol Kosik <karo9@interia.eu> [Various bug fixes, improvements and commit msg update] Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usbip: vudc: Add UDC specific opsIgor Kotrasinski
Add endpoints definitions and ops for both endpoints and gadget. Add also a suitable platform driver and functions for handling usbip events. This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com> Signed-off-by: Karol Kosik <karo9@interia.eu> [Various bug fixes, improvements and commit msg update] Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usbip: vudc: Add vudc_txIgor Kotrasinski
This file contains functions for returning requests to the client. It also has functions that add requests completed in vudc_rx and vudc_transfer to the return queue. This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com> Signed-off-by: Karol Kosik <karo9@interia.eu> Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usbip: vudc: Add vudc_transferIgor Kotrasinski
This file contains a function that simulates USB traffic, based on the one in dummy_hcd. Is also handles udc-directed control requests, and contains functions for setting up and controlling a timer for the emulation. This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com> Signed-off-by: Karol Kosik <karo9@interia.eu> Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usbip: vudc: Add vudc_rxIgor Kotrasinski
Add functions which allows to receive urbs from the client. It receives traffic in a loop in a separate thread. This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com> Signed-off-by: Karol Kosik <karo9@interia.eu> Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usbip: vudc: Add VUDC main fileIgor Kotrasinski
Add main vudc module file. This allows us to register suitable platform device and driver (just like dummy_hcd does). Currently number of vudc instances is determined using module parameter but whole infrastructure is suitable to make vudc creation dynamic (for example via configfs). This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com> Signed-off-by: Karol Kosik <karo9@interia.eu> [Various bug fixes and commit message update] Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usbip: vudc: Make usbip_common vudc-awareIgor Kotrasinski
Add constants for VUDC events in usbip_common.h and make use of them in usbip_common.c. This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com> Signed-off-by: Karol Kosik <karo9@interia.eu> [Small fixes and commit message update] Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usbip: vudc: Add header for USB/IP UDCIgor Kotrasinski
Add header with definitions needed by vudc driver. This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com> Signed-off-by: Karol Kosik <karo9@interia.eu> [Some small improvements] Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usb: storage: fix multi-line comment styleFelipe Balbi
No functional changes here, just making sure our storage driver uses a consistent multi-line comment style. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usb: storage: scsiglue: limit USB3 devices to 2048 sectorsFelipe Balbi
USB3 devices, because they are much newer, have much less chance of having issues with larger transfers. We still keep a limit because anything above 2048 sectors really rendered negligible speed improvements, so we will simply ignore that. Transferring 1MiB should already give us pretty good performance. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usb: storage: scsiglue: further describe our 240 sector limitFelipe Balbi
Just so we have some sort of documentation as to why we limit our Mass Storage transfers to 240 sectors, let's update the comment to make clearer that devices were found that would choke with larger transfers. While at that, also make sure to clarify that other operating systems have similar, albeit different, limits on mass storage transfers. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26hub: admit devices are SS+Oliver Neukum
If a port can do 10 Gb/s the kernel should say so. The corresponding check needs to be added. Signed-off.by: Oliver Neukum <ONeukum@suse.com>> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usb: musb: jz4740: fix error check of usb_get_phy()Vladimir Zapolskiy
The usb_get_phy() function returns either a valid pointer to phy or ERR_PTR() error, check for NULL always fails and may lead to oops on error path, fix this issue. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26Revert "usb: musb: musb_host: Enable HCD_BH flag to handle urb return in ↵Bin Liu
bottom half" This reverts commit 2035772010db634ec8566b658fb1cd87ec47ac77. Commit 20357720 claims throughput improvement for MSC/UVC, but I don't see much improvement. Following are the MSC measurement using dd on AM335x GP EVM. with BCD_BH: read: 14.9MB/s, write: 20.9MB/s without BCD_BH: read: 15.2MB/s, write: 21.2MB/s However with this commit the following regressions have been observed. 1. ASIX usb-ethernet dongle is completely broken on UDP RX. 2. Unpluging a 3G modem, which uses option driver, behind a hub causes console log flooding with the following message. option_instat_callback: error -71 Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-26usb: musb: gadget: nuke endpoint before setting its descriptor to NULLTal Shorer
Some functions, such as f_sourcesink, rely on an endpoint's desc field during their requests' complete() callback, so clear it only _after_ nuking all requests to avoid NULL pointer dereference. Signed-off-by: Tal Shorer <tal.shorer@gmail.com> Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-25Merge 4.6-rc5 into usb-nextGreg Kroah-Hartman
We want the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-25USB: serial: use IS_ENABLED() instead of checking for FOO || FOO_MODULEJavier Martinez Canillas
The IS_ENABLED() macro checks if a Kconfig symbol has been enabled either built-in or as a module, use that macro instead of open coding the same. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Johan Hovold <johan@kernel.org>
2016-04-25USB: serial: ftdi_sio: constify ftdi_sio_quirk structuresJulia Lawall
The ftdi_sio_quirk structures are never modified, so declare them as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Johan Hovold <johan@kernel.org>
2016-04-24USB: serial: cp210x: add Straizona Focusers device idsJasem Mutlaq
Adding VID:PID for Straizona Focusers to cp210x driver. Signed-off-by: Jasem Mutlaq <mutlaqja@ikarustech.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2016-04-24USB: serial: cp210x: add ID for Link ECUMike Manning
The Link ECU is an aftermarket ECU computer for vehicles that provides full tuning abilities as well as datalogging and displaying capabilities via the USB to Serial adapter built into the device. Signed-off-by: Mike Manning <michael@bsch.com.au> Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2016-04-20usb: gadget: f_fs: Fix use-after-freeLars-Peter Clausen
When using asynchronous read or write operations on the USB endpoints the issuer of the IO request is notified by calling the ki_complete() callback of the submitted kiocb when the URB has been completed. Calling this ki_complete() callback will free kiocb. Make sure that the structure is no longer accessed beyond that point, otherwise undefined behaviour might occur. Fixes: 2e4c7553cd6f ("usb: gadget: f_fs: add aio support") Cc: <stable@vger.kernel.org> # v3.15+ Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: dwc3: debugfs: dump out endpoint detailsFelipe Balbi
There's a bunch of information in the debug register set from dwc3 which is useful in some debugging scenarios. Let's dump them out in endpoint-specific directories and designated files. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: dwc3: core: add helper to extract trb typeFelipe Balbi
This helper will be used later to convert trb type into a human-readable string for debugfs. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: dwc3: core: add fifo space helperFelipe Balbi
this helper will be used, initially, to dump space of different queues and fifos in dwc3 to debugfs. Later, it'll be used to issue remote wakeup when we want to start a transfer and there's something in a TX FIFO. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: gadget: pch_udc: don't free devm allocated memoryFelipe Balbi
Coccinelle caught this instance of us kfree()ing devm-allocated memory. The solution is just to not do anything in our gadget_release. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: f_mass_storage: test whether thread is running before starting anotherMichal Nazarewicz
When binding the function to usb_configuration, check whether the thread is running before starting another one. Without that, when function instance is added to multiple configurations, fsg_bing starts multiple threads with all but the latest one being forgotten by the driver. This leads to obvious thread leaks, possible lockups when trying to halt the machine and possible more issues. This fixes issues with legacy/multi¹ gadget as well as configfs gadgets when mass_storage function is added to multiple configurations. This change also simplifies API since the legacy gadgets no longer need to worry about starting the thread by themselves (which was where bug in legacy/multi was in the first place). N.B., this patch doesn’t address adding single mass_storage function instance to a single configuration twice. Thankfully, there’s no legitimate reason for such setup plus, if I’m not mistaken, configfs gadget doesn’t even allow it to be expressed. ¹ I have no example failure though. Conclusion that legacy/multi has a bug is based purely on me reading the code. Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Tested-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: <stable@vger.kernel.org> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: gadget: f_fs: Fix EFAULT generation for async read operationsLars-Peter Clausen
In the current implementation functionfs generates a EFAULT for async read operations if the read buffer size is larger than the URB data size. Since a application does not necessarily know how much data the host side is going to send it typically supplies a buffer larger than the actual data, which will then result in a EFAULT error. This behaviour was introduced while refactoring the code to use iov_iter interface in commit c993c39b8639 ("gadget/function/f_fs.c: use put iov_iter into io_data"). The original code took the minimum over the URB size and the user buffer size and then attempted to copy that many bytes using copy_to_user(). If copy_to_user() could not copy all data a EFAULT error was generated. Restore the original behaviour by only generating a EFAULT error when the number of bytes copied is not the size of the URB and the target buffer has not been fully filled. Commit 342f39a6c8d3 ("usb: gadget: f_fs: fix check in read operation") already fixed the same problem for the synchronous read path. Fixes: c993c39b8639 ("gadget/function/f_fs.c: use put iov_iter into io_data") Acked-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: gadget: r8a66597-udc: Deinline pipe_change, save 2176 bytesDenys Vlasenko
This function compiles to 298 bytes of machine code, has ~10 callsites. This is a USB 2.0 device, USB 2.0 is limited to ~40 MB/s, so should be almost never CPU bound. No need to optimize for speed this agressively. Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> CC: Felipe Balbi <balbi@ti.com> CC: linux-usb@vger.kernel.org CC: linux-kernel@vger.kernel.org Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: renesas_usbhs: use usb_gadget_{un}map_request_by_dev() for IPMMUYoshihiro Shimoda
The previous code could use the first USB-DMAC with IPMMU if iommus property was set into this device node. However, in this case, it could not control the second USB-DMAC with IPMMU because a parameter of IPMMU (micro-TLB id) is different with each USB-DMAC. So, this patch uses the usb_gadget_{un}map_request_by_dev() APIs for IPMMU. (Then, iommus property should be set into USB-DMAC node(s).) Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: renesas_usbhs: change arguments of dma_map_ctrl()Yoshihiro Shimoda
Since usbhsg_dma_map_ctrl() needs DMA device structure in the near future, this patch changes arguments of dma_map_ctrl() to give such data. (This patch is only change the argument.) Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: renesas_usbhs: change function call orfer in usbhsf_dma_prepare_push()Yoshihiro Shimoda
Since usbhsf_dma_{un}map() will use the "fifo" data in the near future, this patch changes function call orfer in usbhsf_dma_prepare_push(). Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: gadget: udc: core: add usb_gadget_{un}map_request_by_dev()Yoshihiro Shimoda
If the following environment, the first argument of DMA API should be set to a DMAC's device structure, not a udc controller's one. - A udc controller needs an external DMAC device (like a DMA Engine). - The external DMAC enables IOMMU. So, this patch add usb_gadget_{un}map_request_by_dev() API to set a DMAC's device structure by a udc controller driver. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: gadget: udc: core: Fix argument of dev_err() in usb_gadget_map_request()Yoshihiro Shimoda
The argument of dev_err() in usb_gadget_map_request() should be dev instead of &gadget->dev. Fixes: 7ace8fc ("usb: gadget: udc: core: Fix argument of dma_map_single for IOMMU") Cc: <stable@vger.kernel.org> # v4.3+ Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
2016-04-19usb: dwc3: make dwc3_debugfs_init return value be voidDu, Changbin
Debugfs init failure is not so important. We can continue our job on this failure. Also no break need for debugfs_create_file call failure. Signed-off-by: Du, Changbin <changbin.du@intel.com> [felipe.balbi@linux.intel.com : - remove out-of-memory message, we get that from OOM. - switch dev_err() to dev_dbg() ] Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: dwc3: omap: get rid of dma_statusRoger Quadros
dma_status bit flag is set but never really used so get rid of it. Reported-by: Felipe Balbi <balbi@kernel.org> Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: dwc3: gadget: don't interrupt when chainedFelipe Balbi
It makes no sense to interrupt in the middle of chained transfer. This patch just makes sure we don't do that. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: dwc3: gadget: remove newline from traceFelipe Balbi
trace already adds a newline character for us, we don't need to do it ourselves. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: dwc3: gadget: use link TRB for all endpoint typesFelipe Balbi
instead of limiting link TRB only to Isoc endpoints, let's use it for all endpoint types, this way we are more likely to transfer more data before a XferComplete event. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: dwc3: gadget: move % operation to increment helpersFelipe Balbi
By moving our % DWC3_NUM_TRB operation to the increment helpers, the rest of the driver can be simplified. It's also a good practice to make sure we will have a single place dealing with details about how to increment our enqueue and dequeue pointers. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: dwc3: gadget: add trb enqueue/dequeue helpersFelipe Balbi
Add three little helpers which will aid in making the code slightly easier to read. One helper increments enqueue pointer, another increments dequeue pointer and the last one tests if we're dealing with the last TRB. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-04-19usb: dwc3: get rid of DWC3_TRB_MASKFelipe Balbi
instead of using a bitwise and, let's rely on the % operator since that's a lot more clear. Also, GCC will optimize % 256 to nothing anyway. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
generated by cgit (git 2.34.1) at 2025-09-12 14:37:34 +0000