This is a patch to the octeon-hcd.c file that fixes
removes dummy label i.e. label followed by return of
void function
Signed-off-by: Nitin Kuppelur <nitinkuppelur@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This is a patch to the octeon-hcd.c file that fixes
checkpatch.pl warning by removing return statement from
void functions.
Signed-off-by: Nitin Kuppelur <nitinkuppelur@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
On data toggle error, we don't know if and how many bytes were
successfully transferred by DMA. We should just fail the transaction
instead of trying a retry.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The driver did not use link_urb_to_ep() / unlink_urb_from_ep(). This
caused odd behaviour in some error recovery situations, all requests
would start to fail after the first failure.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Some lines with more than 80 characters are converted in to multiple lines.
Signed-off-by: Paul Davies C <pauldaviesc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add blank lines after each declarations in drivers/staging/octeon-usb/octeon-hcd.c.
Signed-off-by: Paul Davies C <pauldaviesc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cvmx_usb_pipe fits into a cache-line so additional prefetches are not
really helping anything.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
octeon-hcd will crash the kernel when SLOB is used. This usually happens
after the 18-byte control transfer when a device descriptor is read.
The DMA engine is always transfering full 32-bit words and if the
transfer is shorter, some random garbage appears after the buffer.
The problem is not visible with SLUB since it rounds up the allocations
to word boundary, and the extra bytes will go undetected.
Fix by providing quirk functions for DMA map/unmap that allocate a bigger
temporary buffer when necessary. Tested by booting EdgeRouter Lite
to USB stick root file system with SLAB, SLOB and SLUB kernels.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=72121
Reported-by: Sergey Popov <pinkbyte@gentoo.org>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Individual controller driver has different requirement for wakeup
setting, so move it from core to itself. In order to align with
current etting the default wakeup setting is enabled (except for
chipidea host).
Pass compile test with below commands:
make O=outout/all allmodconfig
make -j$CPU_NUM O=outout/all drivers/usb
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge USBC and USBN register definitions into a single header
file. Although all HW definitions are purely internal to the driver,
it's better to keep them separate due to the large size of the file.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Do the clock setup through p_rtype on all OCTEONs. This enables to get
rid of duplicated register definitions.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add the missing bits to common clk ctl definition, and we can delete
duplicated definitions.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cvmx_usbnx_usbp_ctl_status was multiplied for different OCTEONS and all
those definitions are unused. Delete them.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use ep->hcpriv for pipe handle and urb->hcpriv for submit handle,
instead of packing both into the same field.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Eliminate cvmx_usb_internal_state, just use cvmx_usb_state everywhere.
This also enables to allocate only the needed amount of data for the
USB internal state, instead of always allocating 64 KB.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cvmx-usb module provided Cavium "OS abstraction layer" for USB
functionality. To make this driver a proper Linux driver, we need to
refactor this layer out. By making all the code internal to the HCD
driver makes this task easier.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
