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2019-11-14usb: dwc2: create debugfs directory under usb rootChunfeng Yun
Now the USB gadget subsystem can use the USB debugfs root directory, so move dwc2's directory from the root of the debugfs filesystem into the root of usb Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/1573541519-28488-7-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-14usb: musb: dsps: create debugfs directory under usb rootChunfeng Yun
Now the USB gadget subsystem can use the USB debugfs root directory, so move dsps's directory from the root of the debugfs filesystem into the root of usb Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/1573541519-28488-6-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-14media: uvcvideo: drop error check of debugfs_create_dir()Chunfeng Yun
No need check the return value of debugfs_create_dir() Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/1573541519-28488-1-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-14usb: dwc3: create debugfs directory under usb rootChunfeng Yun
Now the USB gadget subsystem can use the USB debugfs root directory, so move dwc3's directory from the root of the debugfs filesystem into the root of usb Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/1573541519-28488-4-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-14usb: host: imx21: create debugfs directory under usb rootChunfeng Yun
Move it's directory from the root of the debugfs filesystem into the root of usb Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/1573541519-28488-3-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-14usb: chipidea: debug: create debugfs directory under usb rootChunfeng Yun
Move it's directory from the root of the debugfs filesystem into the root of usb Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/1573541519-28488-2-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-14usb: renesas_usbhs: Use dma_request_chan() directly for channel requestPeter Ujfalusi
dma_request_slave_channel_reason() is: #define dma_request_slave_channel_reason(dev, name) \ dma_request_chan(dev, name) Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Link: https://lore.kernel.org/r/20191113094838.2141-1-peter.ujfalusi@ti.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-13usbip: Fix uninitialized symbol 'nents' in stub_recv_cmd_submit()Suwan Kim
Smatch reported that nents is not initialized and used in stub_recv_cmd_submit(). nents is currently initialized by sgl_alloc() and used to allocate multiple URBs when host controller doesn't support scatter-gather DMA. The use of uninitialized nents means that buf_len is zero and use_sg is true. But buffer length should not be zero when an URB uses scatter-gather DMA. To prevent this situation, add the conditional that checks buf_len and use_sg. And move the use of nents right after the sgl_alloc() to avoid the use of uninitialized nents. If the error occurs, it adds SDEV_EVENT_ERROR_MALLOC and stub_priv will be released by stub event handler and connection will be shut down. Fixes: ea44d190764b ("usbip: Implement SG support to vhci-hcd and stub driver") Reported-by: kbuild test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Suwan Kim <suwan.kim027@gmail.com> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20191111141035.27788-1-suwan.kim027@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-12USBIP: add config dependency for SGL_ALLOCOliver Neukum
USBIP uses lib/scatterlist.h Hence it needs to set CONFIG_SGL_ALLOC Signed-off-by: Oliver Neukum <oneukum@suse.com> Cc: stable <stable@vger.kernel.org> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/20191112154939.21217-1-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-11USB: chaoskey: fix error case of a timeoutOliver Neukum
In case of a timeout or if a signal aborts a read communication with the device needs to be ended lest we overwrite an active URB the next time we do IO to the device, as the URB may still be active. Signed-off-by: Oliver Neukum <oneukum@suse.de> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20191107142856.16774-1-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07appledisplay: fix error handling in the scheduled workOliver Neukum
The work item can operate on 1. stale memory left over from the last transfer the actual length of the data transfered needs to be checked 2. memory already freed the error handling in appledisplay_probe() needs to cancel the work in that case Reported-and-tested-by: syzbot+495dab1f175edc9c2f13@syzkaller.appspotmail.com Signed-off-by: Oliver Neukum <oneukum@suse.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20191106124902.7765-1-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07USB: legousbtower: drop superfluous newlinesJohan Hovold
Drop some superfluous newlines before conditionals which made the code harder to read. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-15-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07USB: legousbtower: drop superfluous bracketsJohan Hovold
Drop superfluous brackets around single-line blocks. Also add missing white space around operators in a for-expression being modified. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-14-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07USB: legousbtower: clean up runaway white spaceJohan Hovold
Drop space between function identifiers and opening parenthesis, which was no longer even used consistently within the driver. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-13-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07USB: legousbtower: drop redundant endianness commentsJohan Hovold
The endianness is already encoded in the type specifier so drop the redundant little-endian comments from the message structs. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-12-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07USB: legousbtower: drop unnecessary packed attributesJohan Hovold
Drop the packed attributes from the two message structs whose fields are naturally aligned and do not have any padding. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-11-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07USB: legousbtower: clean up pointer declarations in driver dataJohan Hovold
Clean up the pointer declarations in the driver data, whose style wasn't even consistent with the rest of the driver. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-10-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07USB: legousbtower: remove tower_abort_transfers()Johan Hovold
Drop the tower_abort_transfers() function which is now only called from release and instead explicitly kill the two URBs. This incidentally also fixes the outdated comment about freeing memory. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-9-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07USB: legousbtower: stop interrupt-out URB unconditionallyJohan Hovold
Stop also the interrupt-out URB unconditionally in tower_abort_transfers() which is called from release() (for connected devices). Calling usb_kill_urb() for an idle URB is perfectly fine. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-8-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07USB: legousbtower: drop redundant interrupt-in running flagJohan Hovold
Drop the redundant interrupt-in-running flag, which tried to keep track of when the interrupt-in URB was in flight. This isn't needed since we can stop the URB unconditionally in tower_abort_transfers() and the URB can not be submitted while usb_kill_urb() is running anyway. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-7-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07USB: legousbtower: drop noisy disconnect messagesJohan Hovold
User space already sees -ENODEV in case it tries to do I/O post disconnect, no need to spam the logs with printk messages that don't even include any device-id information. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-6-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07USB: legousbtower: drop redundant open_count checkJohan Hovold
Drop redundant open_count check in release; the open count is used as a flag and is only set to 0 or 1. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-5-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07USB: legousbtower: zero driver data at allocationJohan Hovold
Zero the driver data at allocation rather than depend on explicit zeroing, which easy to miss. Also drop an unnecessary driver-data pointer initialisation. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-4-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07USB: legousbtower: drop redundant NULL checkJohan Hovold
Drop redundant NULL check from tower_abort_transfers(), which is never called with a NULL argument. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07USB: legousbtower: drop redundant MODULE_LICENSE ifdefJohan Hovold
The MODULE_LICENSE macro is unconditionally defined in module.h, no need to ifdef its use. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105084152.16322-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07USB: idmouse: clean up runaway white spaceJohan Hovold
Drop space between function identifiers and opening parenthesis, which was no longer even used consistently within the driver. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105103638.4929-4-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07USB: idmouse: drop redundant open-count check from releaseJohan Hovold
The open count will always be exactly one when release is called, so drop the redundant sanity check. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105103638.4929-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07USB: idmouse: simplify disconnect handlingJohan Hovold
Since commit d4ead16f50f9 ("USB: prevent char device open/deregister race") core prevents further calls to open() after usb_deregister_dev() returns so there's no need to use the interface data for synchronisation. This effectively reverts commit 54d2bc068fd2 ("USB: fix locking in idmouse") with respect to the open-disconnect race. Note that the driver already uses a present flag to suppress I/O post disconnect (even if all USB I/O take place at open). Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191105103638.4929-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07usb: Allow USB device to be warm reset in suspended stateKai-Heng Feng
On Dell WD15 dock, sometimes USB ethernet cannot be detected after plugging cable to the ethernet port, the hub and roothub get runtime resumed and runtime suspended immediately: ... [ 433.315169] xhci_hcd 0000:3a:00.0: hcd_pci_runtime_resume: 0 [ 433.315204] usb usb4: usb auto-resume [ 433.315226] hub 4-0:1.0: hub_resume [ 433.315239] xhci_hcd 0000:3a:00.0: Get port status 4-1 read: 0x10202e2, return 0x10343 [ 433.315264] usb usb4-port1: status 0343 change 0001 [ 433.315279] xhci_hcd 0000:3a:00.0: clear port1 connect change, portsc: 0x10002e2 [ 433.315293] xhci_hcd 0000:3a:00.0: Get port status 4-2 read: 0x2a0, return 0x2a0 [ 433.317012] xhci_hcd 0000:3a:00.0: xhci_hub_status_data: stopping port polling. [ 433.422282] xhci_hcd 0000:3a:00.0: Get port status 4-1 read: 0x10002e2, return 0x343 [ 433.422307] usb usb4-port1: do warm reset [ 433.422311] usb 4-1: device reset not allowed in state 8 [ 433.422339] hub 4-0:1.0: state 7 ports 2 chg 0002 evt 0000 [ 433.422346] xhci_hcd 0000:3a:00.0: Get port status 4-1 read: 0x10002e2, return 0x343 [ 433.422356] usb usb4-port1: do warm reset [ 433.422358] usb 4-1: device reset not allowed in state 8 [ 433.422428] xhci_hcd 0000:3a:00.0: set port remote wake mask, actual port 0 status = 0xf0002e2 [ 433.422455] xhci_hcd 0000:3a:00.0: set port remote wake mask, actual port 1 status = 0xe0002a0 [ 433.422465] hub 4-0:1.0: hub_suspend [ 433.422475] usb usb4: bus auto-suspend, wakeup 1 [ 433.426161] xhci_hcd 0000:3a:00.0: xhci_hub_status_data: stopping port polling. [ 433.466209] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting [ 433.510204] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting [ 433.554051] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting [ 433.598235] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting [ 433.642154] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting [ 433.686204] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting [ 433.730205] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting [ 433.774203] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting [ 433.818207] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting [ 433.862040] xhci_hcd 0000:3a:00.0: port 0 polling in bus suspend, waiting [ 433.862053] xhci_hcd 0000:3a:00.0: xhci_hub_status_data: stopping port polling. [ 433.862077] xhci_hcd 0000:3a:00.0: xhci_suspend: stopping port polling. [ 433.862096] xhci_hcd 0000:3a:00.0: // Setting command ring address to 0x8578fc001 [ 433.862312] xhci_hcd 0000:3a:00.0: hcd_pci_runtime_suspend: 0 [ 433.862445] xhci_hcd 0000:3a:00.0: PME# enabled [ 433.902376] xhci_hcd 0000:3a:00.0: restoring config space at offset 0xc (was 0x0, writing 0x20) [ 433.902395] xhci_hcd 0000:3a:00.0: restoring config space at offset 0x4 (was 0x100000, writing 0x100403) [ 433.902490] xhci_hcd 0000:3a:00.0: PME# disabled [ 433.902504] xhci_hcd 0000:3a:00.0: enabling bus mastering [ 433.902547] xhci_hcd 0000:3a:00.0: // Setting command ring address to 0x8578fc001 [ 433.902649] pcieport 0000:00:1b.0: PME: Spurious native interrupt! [ 433.902839] xhci_hcd 0000:3a:00.0: Port change event, 4-1, id 3, portsc: 0xb0202e2 [ 433.902842] xhci_hcd 0000:3a:00.0: resume root hub [ 433.902845] xhci_hcd 0000:3a:00.0: handle_port_status: starting port polling. [ 433.902877] xhci_hcd 0000:3a:00.0: xhci_resume: starting port polling. [ 433.902889] xhci_hcd 0000:3a:00.0: xhci_hub_status_data: stopping port polling. [ 433.902891] xhci_hcd 0000:3a:00.0: hcd_pci_runtime_resume: 0 [ 433.902919] usb usb4: usb wakeup-resume [ 433.902942] usb usb4: usb auto-resume [ 433.902966] hub 4-0:1.0: hub_resume ... As Mathias pointed out, the hub enters Cold Attach Status state and requires a warm reset. However usb_reset_device() bails out early when the device is in suspended state, as its callers port_event() and hub_event() don't always resume the device. Since there's nothing wrong to reset a suspended device, allow usb_reset_device() to do so to solve the issue. Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20191106062710.29880-1-kai.heng.feng@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07usb: gadget: pch_udc: fix use after freeGustavo A. R. Silva
Remove pointer dereference after free. pci_pool_free doesn't care about contents of td. It's just a void* for it Addresses-Coverity-ID: 1091173 ("Use after free") Cc: stable@vger.kernel.org Acked-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Link: https://lore.kernel.org/r/20191106202821.GA20347@embeddedor Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: typec: ucsi: Optimise ucsi_unregister()Heikki Krogerus
There is no need to reset the PPM when the interface is unregistered. Quietly silencing the notifications and then unregistering everything is enough. This speeds up ucsi_unregister() a lot. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Tested-by: Ajay Gupta <ajayg@nvidia.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191104142435.29960-19-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: typec: ucsi: New error codesHeikki Krogerus
Adding new error codes to the driver that were introduced in UCSI specification v1.1. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Tested-by: Ajay Gupta <ajayg@nvidia.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191104142435.29960-18-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: typec: ucsi: Remove all bit-fieldsHeikki Krogerus
We can't use bit fields with data that is received or send to/from the device. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Tested-by: Ajay Gupta <ajayg@nvidia.com> Link: https://lore.kernel.org/r/20191104142435.29960-17-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: typec: ucsi: Remove struct ucsi_controlHeikki Krogerus
That data structure was used for constructing the commands before executing them, but it was never really useful. Using the structure just complicated the driver. The commands are 64-bit wide, so it is enough to simply fill a u64 variable. No data structures needed. This simplifies the driver considerable and makes it much easier to for example add support for big endian systems later on. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Tested-by: Ajay Gupta <ajayg@nvidia.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191104142435.29960-16-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: typec: ucsi: Remove the old APIHeikki Krogerus
The drivers now only use the new API, so removing the old one. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Tested-by: Ajay Gupta <ajayg@nvidia.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191104142435.29960-15-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: typec: ucsi: ccg: Move to the new APIHeikki Krogerus
Replacing the old "cmd" and "sync" callbacks with an implementation of struct ucsi_operations. The interrupt handler will from now on read the CCI (Command Status and Connector Change Indication) register, and call ucsi_connector_change() function and/or complete pending command completions based on it. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Tested-by: Ajay Gupta <ajayg@nvidia.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191104142435.29960-14-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: typec: ucsi: acpi: Move to the new APIHeikki Krogerus
Replacing the old "cmd" and "sync" callbacks with an implementation of struct ucsi_operations. The ACPI notification (interrupt) handler will from now on read the CCI (Command Status and Connector Change Indication) register, and call ucsi_connector_change() function and/or complete pending command completions based on it. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191104142435.29960-13-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: typec: ucsi: Simplified registration and I/O APIHeikki Krogerus
Adding more simplified API for interface registration and read and write operations. The registration is split into separate creation and registration phases. That allows the drivers to properly initialize the interface before registering it if necessary. The read and write operations are supplied in a completely separate struct ucsi_operations that is passed to the ucsi_register() function during registration. The new read and write operations will work more traditionally so that the read callback function reads a requested amount of data from an offset, and the write callback functions write the given data to the offset. The drivers will have to support both non-blocking writing and blocking writing. In blocking writing the driver itself is responsible of waiting for the completion event. The new API makes it possible for the drivers to perform tasks also independently of the core ucsi.c, and that should allow for example quirks to be handled completely in the drivers without the need to touch ucsi.c. The old API is kept until all drivers have been converted to the new API. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Tested-by: Ajay Gupta <ajayg@nvidia.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191104142435.29960-12-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: typec: hd3ss3220: Give the connector fwnode to the port deviceHeikki Krogerus
The driver already finds the node in order to get reference to the USB role switch. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Tested-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191104142435.29960-11-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: typec: Remove the callback members from struct typec_capabilityHeikki Krogerus
There are no more users for them. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191104142435.29960-9-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: typec: hd3ss3220: Start using struct typec_operationsHeikki Krogerus
Supplying the operation callbacks as part of a struct typec_operations instead of as part of struct typec_capability during port registration. After this there is not need to keep the capabilities stored anywhere in the driver. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191104142435.29960-8-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: typec: ucsi: Start using struct typec_operationsHeikki Krogerus
Supplying the operation callbacks as part of a struct typec_operations instead of as part of struct typec_capability during port registration. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191104142435.29960-7-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: typec: tps6598x: Start using struct typec_operationsHeikki Krogerus
Supplying the operation callbacks as part of a struct typec_operations instead of as part of struct typec_capability during port registration. After this there is not need to keep the capabilities stored anywhere in the driver. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191104142435.29960-6-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: typec: tcpm: Start using struct typec_operationsHeikki Krogerus
Supplying the operation callbacks as part of a struct typec_operations instead of as part of struct typec_capability during port registration. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191104142435.29960-5-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: typec: Separate the operations vectorHeikki Krogerus
Introducing struct typec_operations which has the same callbacks as struct typec_capability. The old callbacks are kept for now, but after all users have been converted, they will be removed. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191104142435.29960-4-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: typec: Introduce typec_get_drvdata()Heikki Krogerus
Leaving the private driver_data pointer of the port device to the port drivers. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191104142435.29960-3-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: typec: Copy everything from struct typec_capability during registrationHeikki Krogerus
Copying everything from struct typec_capability to struct typec_port during port registration. This will make sure that under no circumstances the driver can change the values in the struct typec_capability that the port uses. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191104142435.29960-2-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04USB: dummy-hcd: use usb_urb_dir_in instead of usb_pipeinAndrey Konovalov
Commit fea3409112a9 ("USB: add direction bit to urb->transfer_flags") has added a usb_urb_dir_in() helper function that can be used to determine the direction of the URB. With that patch USB_DIR_IN control requests with wLength == 0 are considered out requests by real USB HCDs. This patch changes dummy-hcd to use the usb_urb_dir_in() helper to match that behavior. Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Link: https://lore.kernel.org/r/4ae9e68ebca02f08a93ac61fe065057c9a01f0a8.1571667489.git.andreyknvl@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04USB: dummy-hcd: increase max number of devices to 32Andrey Konovalov
When fuzzing the USB subsystem with syzkaller, we currently use 8 testing processes within one VM. To isolate testing processes from one another it is desirable to assign a dedicated USB bus to each of those, which means we need at least 8 Dummy UDC/HCD devices. This patch increases the maximum number of Dummy UDC/HCD devices to 32 (more than 8 in case we need more of them in the future). Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Link: https://lore.kernel.org/r/665578f904484069bb6100fb20283b22a046ad9b.1571667489.git.andreyknvl@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-04usb: host: fotg210: add missed clk_put callsChuhong Yuan
The driver forgets to call clk_put when probe fails and remove. Add the calls to fix it. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Link: https://lore.kernel.org/r/20191102062245.4014-1-hslester96@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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