- 20 Sep, 2018 40 commits
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Heikki Krogerus authored
Adding a connection for the DisplayPort alternate mode. PI3USB30532 is used for muxing the port to DisplayPort on CHT platforms. The connection allows the alternate mode device to get handle to the mux, and therefore make it possible to use the USB Type-C connector as DisplayPort. Acked-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Acked-by:
Hans de Goede <hdegoede@redhat.com> Tested-by:
Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Heikki Krogerus authored
We can register all device connection descriptors with a single call to device_connections_add(). Acked-by:
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Heikki Krogerus authored
Introducing helpers for adding and removing multiple device connection descriptions at once. Acked-by:
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Heikki Krogerus authored
The connections create clear dependency on the muxes. fusb302 fails to probe unless we have the mux drivers available. Acked-by:
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Colin Ian King authored
Trivial fix to spelling mistake in dev_dbg message Signed-off-by:
Colin Ian King <colin.king@canonical.com> Acked-by:
Peter Chen <peter.chen@nxp.com> Signed-off-by:
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Linus Walleij authored
There is code in the .remove() hook to handle the drvdata being NULL, for good reasons: it is never set, so it will always be NULL. As I moved code around, static checkers start complaining. Instead of this, make sure to always set it on successful probe so we can always dereference it on the remove path. Use the platform_device_[set|get]_drvdata() since this is a platform device. Fixes: ffa8a31b ("usb: host: fotg2: add silicon clock handling") Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Yoshihiro Shimoda authored
R-Car Gen3 needs to enable clocks of both host and peripheral. Since [eo]hci-platform disables the reset(s) when the drivers are removed, renesas_usbhs driver doesn't work correctly. To fix this issue, this patch adds multiple clocks management on this renesas_usbhs driver. Signed-off-by:
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by:
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Yoshihiro Shimoda authored
R-Car Gen3 needs to enable clocks of both host and peripheral. Otherwise, other side device cannot work correctly. So, this patch adds a property of clock-names for R-Car Gen3 as an optional. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Yoshihiro Shimoda authored
R-Car Gen3 needs to deassert resets of both host and peripheral. Since [eo]hci-platform is possible to assert the reset(s) when the probing failed, renesas_usbhs driver doesn't work correctly regardless of finished probing. To fix this issue, this patch adds reset_control on this renesas_usbhs driver. Signed-off-by:
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Yoshihiro Shimoda authored
This patch adds detailed information of an optional property "clocks" description for R-Car Gen3. Signed-off-by:
Simon Horman <horms+renesas@verge.net.au> Reviewed-by:
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Yoshihiro Shimoda authored
This patch adds detailed information of an optional property "clocks" description for R-Car Gen3. Signed-off-by:
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Saranya Gopal authored
USB audio class 3.0 specification introduced many significant changes like - new power domains, support for LPM/L1 - new cluster descriptor - new high capability and class-specific string descriptors - BADD profiles - ... and many other things (check spec from link below: http://www.usb.org/developers/docs/devclass_docs/USB_Audio_v3.0.zip) Now that UAC3 is supported in linux, choose UAC3 configuration for audio if the device supports it. Selecting this configuration will enable the system to save power by leveraging the new power domains and LPM L1 capability and also support new codec types and data formats for consumer audio applications. Signed-off-by:
Saranya Gopal <saranya.gopal@intel.com> Reviewed-by:
Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by:
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Fabrizio Castro authored
Document RZ/G2M (R8A774A1) SoC bindings. Signed-off-by:
Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by:
Biju Das <biju.das@bp.renesas.com> Reviewed-by:
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Fabrizio Castro authored
Document RZ/G2M (R8A774A1) SoC bindings. Signed-off-by:
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Fabrizio Castro authored
Document RZ/G2M (R8A774A1) SoC bindings. Signed-off-by:
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Lubomir Rintel authored
Signed-off-by:
Lubomir Rintel <lkundrak@v3.sk> Acked-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Lubomir Rintel authored
Add Device tree support. Signed-off-by:
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Lubomir Rintel authored
Use a proper PHY driver, instead of hooks to a board support package. Signed-off-by:
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Lubomir Rintel authored
It's unused. Signed-off-by:
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Lubomir Rintel authored
This is done do that it could be enabled alongside other platform EHCI glue drivers on multiplatform kernels. Signed-off-by:
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Guido Kiener authored
As all the properties of the usbtmc driver can now be controlled on a per file descriptor basis by ioctl functions the sysfs interface is of limited use. We are not aware about applications that are using the sysfs parameter TermChar, TermCharEnabled or auto_abort. Signed-off-by:
Guido Kiener <guido.kiener@rohde-schwarz.com> Reviewed-by:
Steve Bayless <steve_bayless@keysight.com> Signed-off-by:
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Guido Kiener authored
Signed-off-by:
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Guido Kiener authored
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Guido Kiener authored
Remove redundant code and fix debug messages. Signed-off-by:
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Guido Kiener authored
Reserve a suitable range of ioctl numbers for USBTMC driver. Signed-off-by:
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Guido Kiener authored
Add ioctl USBTMC_IOCTL_API_VERSION to get current API version of usbtmc driver. This is to allow an instrument library to determine whether the driver API is compatible with the implementation. The API may change in future versions. Therefore the macro USBTMC_API_VERSION should be incremented when changing tmc.h with new flags, ioctls or when changing a significant behavior of the driver. Signed-off-by:
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Guido Kiener authored
Use common timeout macro USB_CTRL_GET_TIMEOUT (=5s) for all usb_control_msg() function calls. The macro USBTMC_TIMEOUT should only be used as default value for Bulk IN/OUT transfers. Signed-off-by:
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Guido Kiener authored
Add parameter 'tag' to function usbtmc_ioctl_abort_bulk_out_tag() for future versions. Use USBTMC_BUFSIZE (4k) instead of USBTMC_SIZE_IOBUFFER (2k). Using USBTMC_SIZE_IOBUFFER is deprecated. Insert a sleep of 50 ms between subsequent CHECK_ABORT_BULK_OUT_STATUS control requests to avoid stressing the instrument with repeated requests. Use common macro USB_CTRL_GET_TIMEOUT instead of USBTMC_TIMEOUT. Signed-off-by:
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Guido Kiener authored
Add parameter 'tag' to function usbtmc_ioctl_abort_bulk_in_tag() for future versions. Remove calculation of max_size (=wMaxPacketSize) and wrong condition (actual == max_size) in while loop. An abort operation should always flush the complete Bulk-IN until a short packet is received. Return error code ENOMSG when transfer (specified by given tag) is not in progress and device returns code USBTMC_STATUS_TRANSFER_NOT_IN_PROGRESS. Use USBTMC_BUFSIZE (4k) instead of USBTMC_SIZE_IOBUFFER (2k). Using USBTMC_SIZE_IOBUFFER is deprecated. Use common macro USB_CTRL_GET_TIMEOUT instead of USBTMC_TIMEOUT. Check only bit 0 (field bmAbortBulkIn) of the CHECK_ABORT_BULK_IN_STATUS response, since other bits are reserved and can change in future versions. Signed-off-by:
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Guido Kiener authored
Remove calculation of max_size (=wMaxPacketSize) and wrong condition (actual == max_size) in while loop. A device clear should always flush the complete Bulk-IN FIFO. Insert a sleep of 50 ms between subsequent CHECK_CLEAR_STATUS control requests to avoid stressing the instrument with repeated requests. Some instruments need time to cleanup internal I/O buffers. Polling and nonbraked requests slow down the response time of devices. Use USBTMC_BUFSIZE (4k) instead of USBTMC_SIZE_IOBUFFER (2k). Using USBTMC_SIZE_IOBUFFER is deprecated. Check only bit 0 (field bmClear) of the CHECK_CLEAR_STATUS response, since other bits are reserved and can change in future versions. Signed-off-by:
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Guido Kiener authored
Use new usbtmc_generic_read function to maximize bandwidth during long data transfer. Also fix reading of zero length packet (ZLP) or trailing short packet. The maximum input transfer size is limited to INT_MAX (=2GB). Also remove redundant return in send_request_dev_dep_msg_in(). Signed-off-by:
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Guido Kiener authored
Use new usbtmc_generic_write function to maximize bandwidth during long data transfer. The maximum output transfer size is limited to INT_MAX (=2GB). Signed-off-by:
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Guido Kiener authored
Add ioctl USBTMC_IOCTL_AUTO_ABORT to configure auto_abort for each specific file handle. Signed-off-by:
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Guido Kiener authored
add ioctl USBTMC_IOCTL_MSG_IN_ATTR that returns the specific bmTransferAttributes field of the last DEV_DEP_MSG_IN Bulk-IN header. This header is received by the read() function. The meaning of the (u8) bitmap bmTransferAttributes is: Bit 0 = EOM flag is set when the last transfer of a USBTMC message is received. Bit 1 = is set when the last byte is a termchar (e.g. '\n'). Note that this bit is always zero when the device does not support the termchar feature or when termchar detection is not enabled (see ioctl USBTMC_IOCTL_CONFIG_TERMCHAR). Signed-off-by:
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Guido Kiener authored
Wait until an SRQ (service request) is received on the interrupt pipe or until the given period of time is expired. In contrast to the poll() function this ioctl does not return when other (a)synchronous I/O operations fail with EPOLLERR. Signed-off-by:
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Guido Kiener authored
Submitted urbs are not allowed when system is suspended. Thus the submitted urb waiting at interrupt pipe is killed during suspend callback and submitted again when system resumes. Signed-off-by:
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Guido Kiener authored
The ioctl USBTMC_IOCTL_CLEANUP_IO kills all submitted urbs to OUT and IN bulk, and clears all received data from IN bulk. Internal transfer counters and error states are reset. An application should use this ioctl after an asnychronous transfer was canceled and/or error handling has finished. Signed-off-by:
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Guido Kiener authored
ioctl USBTMC_IOCTL_CANCEL_IO stops and kills all flying urbs of last USBTMC_IOCTL_READ and USBTMC_IOCTL_WRITE function calls. A subsequent call to USBTMC_IOCTL_READ or USBTMC_IOCTL_WRITE_RESULT returns -ECANCELED with information about current transferred data. Signed-off-by:
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Guido Kiener authored
The USBTMC_IOCTL_READ call provides for generic synchronous and asynchronous reads on bulk IN to implement vendor specific library routines. Depending on transfer_size the function submits one or more urbs (up to 16) each with a size of up to 4kB. The flag USBTMC_FLAG_IGNORE_TRAILER can be used when the transmission size is already known. Then the function does not truncate the transfer_size to a multiple of 4 kB, but does reserve extra space to receive the final short or zero length packet. Note that the instrument is allowed to send up to wMaxPacketSize - 1 bytes at the end of a message to avoid sending a zero length packet. With flag USBTMC_FLAG_ASYNC the ioctl is non blocking. When no received data is available, the read function submits as many urbs as needed to receive transfer_size bytes. However the number of flying urbs (=4kB) is limited to 16 even with subsequent calls of this ioctl. Returns -EAGAIN when non blocking and no data is received. Signals EPOLLIN | EPOLLRDNORM when asynchronous urbs are ready to be read. In non blocking mode the usbtmc_message.message pointer may be NULL and the ioctl just submits urbs to initiate receiving data. However if data is already available due to a previous non blocking call the ioctl will return -EINVAL when the message pointer is NULL. This ioctl does not support compatibility for 32 bit applications running on 64 bit systems. However all other convenient ioctls of the USBTMC driver can still be used in 32 bit applications as well. Note that 32 bit applications running on 32 bit target systems are not affected by this limitation. Signed-off-by:
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Guido Kiener authored
ioctl USBTMC_IOCTL_WRITE_RESULT copies current out_transfer_size to given __u32 pointer and returns current out_status of the last (asnynchronous) USBTMC_IOCTL_WRITE call. Signed-off-by:
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