drivers/usb/gadget/udc/mv_u3d_core.c: In function ‘mv_u3d_process_ep_req’:
drivers/usb/gadget/udc/mv_u3d_core.c:124:6: warning: variable ‘trb_complete’ set but not used [-Wunused-but-set-variable]
int trb_complete, actual, remaining_length = 0;
^
drivers/usb/gadget/udc/mv_u3d_core.c:123:28: warning: variable ‘curr_ep_context’ set but not used [-Wunused-but-set-variable]
struct mv_u3d_ep_context *curr_ep_context;
^
drivers/usb/gadget/udc/mv_u3d_core.c:122:13: warning: variable ‘cur_deq_lo’ set but not used [-Wunused-but-set-variable]
dma_addr_t cur_deq_lo;
^
drivers/usb/gadget/udc/mv_u3d_core.c: In function ‘mv_u3d_ep_enable’:
drivers/usb/gadget/udc/mv_u3d_core.c:530:28: warning: variable ‘ep_context’ set but not used [-Wunused-but-set-variable]
struct mv_u3d_ep_context *ep_context;
^
drivers/usb/gadget/udc/mv_u3d_core.c: In function ‘mv_u3d_ep_disable’:
drivers/usb/gadget/udc/mv_u3d_core.c:636:28: warning: variable ‘ep_context’ set but not used [-Wunused-but-set-variable]
struct mv_u3d_ep_context *ep_context;
^
In doing so, it removes calls to ioread32 function which does I/O with
the device, but I hope the reads don’t have any side effects that are
needed.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
drivers/usb/gadget/udc/r8a66597-udc.c: In function ‘r8a66597_irq’:
drivers/usb/gadget/udc/r8a66597-udc.c:1468:15: warning: variable ‘nrdyenb’ set but not used [-Wunused-but-set-variable]
u16 brdyenb, nrdyenb, bempenb;
^
drivers/usb/gadget/udc/r8a66597-udc.c:1467:15: warning: variable ‘nrdysts’ set but not used [-Wunused-but-set-variable]
u16 brdysts, nrdysts, bempsts;
^
In doing so, it removes calls to r8a66597_read function which does I/O
with the device, but I hope the reads don’t have any side effects that
are needed.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
drivers/usb/gadget/udc/m66592-udc.c: In function ‘m66592_irq’:
drivers/usb/gadget/udc/m66592-udc.c:1203:15: warning: variable ‘nrdyenb’ set but not used [-Wunused-but-set-variable]
u16 brdyenb, nrdyenb, bempenb;
^
drivers/usb/gadget/udc/m66592-udc.c:1202:15: warning: variable ‘nrdysts’ set but not used [-Wunused-but-set-variable]
u16 brdysts, nrdysts, bempsts;
^
In doing so, it removes calls to m66592_read function which does I/O
with the device, but I hope the reads don’t have any side effects that
are needed.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Maintain backward compatibility for a single named
interrupt ("dwc3_usb3") for all interrupts as well as
unnamed interrupt at index 0 for all interrupts.
As platform_get_irq() variants are used, tackle
the -EPROBE_DEFER case as well.
Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Hans de Goede [Fri, 10 Jun 2016 09:46:25 +0000 (11:46 +0200)]
USB: Fix of_usb_get_dr_mode_by_phy with a shared phy block
Some SoCs have a single phy-hw-block with multiple phys, this is
modelled by a single phy dts node, so we end up with multiple
controller nodes with a phys property pointing to the phy-node
of the otg-phy.
Only one of these controllers typically is an otg controller, yet we
were checking the first controller who uses a phy from the block and
then end up looking for a dr_mode property in e.g. the ehci controller.
This commit fixes this by adding an arg0 parameter to
of_usb_get_dr_mode_by_phy and make of_usb_get_dr_mode_by_phy
check that this matches the phandle args[0] value when looking for
the otg controller.
Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Done fixes and tested hsotg gadget's BDMA mode. Tested Control,
Bulk, Isoc, Inter transfers. Added code for isoc transfers,
removed unusable code, done minor fixes. Affected functions
and IRQ handlers:
- dwc2_hsotg_start_req(),
- dwc2_hsotg_ep_enable(),
- dwc2_hsotg_ep_queue(),
- dwc2_hsotg_handle_outdone(),
- GINTSTS_GOUTNAKEFF handler,
Removed 'has_correct_parity' flag from 'dwc2_hsotg_ep' struct.
Before this patch series, to set the data pid the DWC2 gadget
driver was toggling the even/odd until it match, then were
leaving it set. But now I have added mechanism to set pid and
excluded all code where this flag was set.
Tested-by: John Keeping <john@metanate.com> Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
usb: dwc2: gadget: Add EP disabled interrupt handler
Reimplemented EP disabled interrupt handler and moved to
corresponding function.
This interrupt indicates that the endpoint has been disabled per
the application's request.
For IN endpoints flushes txfifo, in case of BULK clears DCTL_CGNPINNAK,
in case of ISOC completes current request.
For ISOC-OUT endpoints completes expired requests. If there is
remaining request starts it. This is the part of ISOC-OUT transfer
drop flow. When ISOC-OUT transfer expired we must disable ep to drop
ongoing transfer.
Tested-by: John Keeping <john@metanate.com> Reviewed-by: Vahram Aharonyan <vahrama@synopsys.com> Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
usb: dwc2: gadget: Add Incomplete ISO IN/OUT Interrupt handlers
Incomplete ISO IN interrupt indicates one of the following conditions
occurred while transmitting an ISOC transaction.
- Corrupted IN Token for ISOC EP.
- Packet not complete in FIFO.
Incomplete ISO OUT indicates that there is at least one isochronous OUT
endpoint on which the transfer is not completed in the current
microframe.
The following actions will be taken:
In case of EP-IN
- Determine the EP
- Disable EP directly from this handler; when "Endpoint Disabled"
interrupt is received flush FIFO
In case of EP-OUT
- Determine the EP
- If target frame elapsed set DCTL_SGOUTNAK, unmask GOUTNAKEFF and
proceed as described in section 7.5.1 of DWC-HSOTG Programming Guide
Also added dwc2_gadget_target_frame_elapsed() helper function which
will be used in Incomplete ISO IN/OUT Interrupt handlers.
Tested-by: John Keeping <john@metanate.com> Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
usb: dwc2: gadget: Add OUTTKNEPDIS and NAKINTRPT handlers
NAKINTRPT interrupt is starting point for isoc-in transfer,
synchronization done with first in token received from host,
core asserts this interrupt when responds with 0 length data
to in token, received from host.
The first IN token is asynchronous for device - device does not
know when first one token will arrive from host. On first token
arrival HW generates 2 interrupts: 'in token received while FIFO
empty' and 'NAK'. NAK interrupt for ISOC in means that token has
arrived and ZLP was sent in response to that as there was no data
in FIFO. SW is basing on this interrupt to obtain frame in which
token has come and then based on the interval calculates next
frame for transfer.
OUTTKNEPDIS interrupt is starting point for isoc-out transfer,
synchronization done with first out token received from host
while corresponding ep is disabled.
For OUTs the reason is same - device does not know initial frame
in which out token will come. For this HW generates OUTTKNEPDIS
- out token is received while EP is disabled. Upon getting this
interrupt SW starts calculation for next transfer frame.
Tested-by: John Keeping <john@metanate.com> Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Increases and checks targeted frame number of current ep
if overrun happened, sets flag and masks with DSTS_SOFFN_LIMIT
Added following fields to struct dwc2_hsotg_ep
-target_frame: Targeted frame num to setup next ISOC transfer
-frame_overrun: Indicates SOF number overrun in DSTS
Tested-by: John Keeping <john@metanate.com> Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
usb: dwc2: gadget: Fix transfer stop programming for out endpoint
According DWC-OTG databook, "GOUTNakEff" is read only and can be
cleared only by "DCTL.CGOUTNak", but here we do not need to clear
it because DWC-OTG programming guide says that before disabling
any OUT endpoint, the application must enable Global OUT NAK mode,
so if this mode is enabled we can continue without this step.
Tested-by: John Keeping <john@metanate.com> Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Arnd Bergmann [Thu, 16 Jun 2016 11:38:25 +0000 (13:38 +0200)]
usb: pxa27x_udc: remove unused function argument
We get a warning for this when building with W=1 because the
argument gets assigned to something else but never read:
drivers/usb/gadget/udc/pxa27x_udc.c: In function 'stop_activity':
drivers/usb/gadget/udc/pxa27x_udc.c:1828:74: error: parameter 'driver' set but not used [-Werror=unused-but-set-parameter]
This remove the argument entirely.
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Baolin Wang [Mon, 20 Jun 2016 08:19:48 +0000 (16:19 +0800)]
usb: dwc3: gadget: Add the suspend state checking when stopping gadget
It will be crash to stop gadget when the dwc3 device had been into suspend
state, thus we need to check if the dwc3 device had been into suspend state
when UDC try to stop gadget.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Tue, 21 Jun 2016 07:32:02 +0000 (10:32 +0300)]
usb: dwc3: gadget: issue ENDTRANSFER conditional on resource_index
Because of recent changes to transfer handling on
DWC3, we will not get XferComplete unless we
completely fill up our TRB ring. This means that we
might get a Reset or Disconnect without getting a
XferComplete first.
In order to correctly release our allocated Transfer
Resource, we must issue ENDTRANSFER command whenever
dep->resource_index is valid.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
it's clear now that when is_on=true, we must loop
until DWC3_DSTS_DEVCTRLHLT clears; while when
is_on=false we must loop until DWC3_DSTS_DEVCTRLHLT
gets set.
Instead of adding actual if() statements, we can
rely on XOR operation to evaluate to true only when
the above conditions apply. Then, we can move the
break condition back to the while() statement
together with our timeout check and the resulting
code is very compact and simpler to read.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Thu, 9 Jun 2016 13:24:08 +0000 (16:24 +0300)]
usb: dwc3: gadget: remove udelay() from run_stop()
testing shows that udelay() is unnecessary as
controller reaches Halted state almost
instantenously as can be seen by our timeout
variable never actually decrementing.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Tue, 7 Jun 2016 09:49:52 +0000 (12:49 +0300)]
usb: dwc3: pci: add dr-mode for Intel dwc3
It's know that Intel's SoCs' dwc3 integration is
peripheral-only since Intel implements its own
portmux for role-swapping. In order to prevent dwc3
from ever registering and XHCI platform_device,
let's just set dr-mode to peripheral-only on Intel
SoCs.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Tue, 31 May 2016 10:39:21 +0000 (13:39 +0300)]
usb: gadget: add tracepoints to the gadget API
This new set of tracepoints will help all gadget
drivers and UDC drivers when problem appears. Note
that, in order to be able to add tracepoints to
udc-core.c we had to rename that to core.c and
statically link it with trace.c to form
udc-core.o. This is to make sure that module name
stays the same.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Tue, 31 May 2016 10:07:47 +0000 (13:07 +0300)]
usb: gadget: move gadget API functions to udc-core
instead of defining all functions as static inlines,
let's move them to udc-core and export them with
EXPORT_SYMBOL_GPL, that way we can make sure that
only GPL drivers will use them.
As a side effect, it'll be nicer to add tracepoints
to the gadget API.
While at that, also fix Kconfig dependencies to
avoid randconfig build failures.
Acked-By: Sebastian Reichel <sre@kernel.org> Acked-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Mon, 30 May 2016 10:41:22 +0000 (13:41 +0300)]
usb: dwc3: gadget: start Bulk endpoints more frequently
Now we can try to issue Update Transfer every time
gadget driver queues a new request. This will make
sure we keep controller's queue busy for as long as
possible.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Mon, 30 May 2016 10:38:32 +0000 (13:38 +0300)]
usb: dwc3: gadget: use allocated/queued reqs for LST bit
Let's only set LST bit when we run out of space in
our TRB ring. For all other cases, we keep LST bit
unset which will prevent constant allocation and
deallocation of endpoint transfer resources.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Heikki Krogerus [Fri, 22 Apr 2016 08:17:40 +0000 (11:17 +0300)]
usb: dwc3: remove handling of platform data
No more users for it.
Tested-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Heikki Krogerus [Fri, 22 Apr 2016 08:17:39 +0000 (11:17 +0300)]
usb: dwc3: pci: use build-in properties instead of platform data
This should allow the core driver to drop handling of
platform data and expect the platform specific details to
always come from properties.
Tested-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Cc: Huang Rui <ray.huang@amd.com> CC: John Youn <John.Youn@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
"Because PIPE powerpresent has a different meaning in host and in device mode,
and because of the redundancy with the UTMI signals, the controller ORes
together the appropriate PIPE and UTMI inputs to create its internal
VBUS status. For that reason, it is recommended to leave field
USBOTGSS_UTMI_OTG_STATUS[9] POWERPRESENT at its default value (=0), and only to
fill in the USB2 VBUS status fields in the same register."
Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
William Wu [Fri, 13 May 2016 10:13:46 +0000 (18:13 +0800)]
usb: dwc3: add DWC3_GUCTL1 reg for debug
GUCTL1 reg has some useful functions which can be
written by user. For rockchip platform, we set
GUCTL1.DEV_FORCE_20_CLK_FOR_30_CLK (bit26, applicable
for the core is programmed to operate in 2.0 device
only) to 1 in bootrom, and after start the kernel,
we want to check whether this bit can be reset to
default 0 after the core reset. Dump GUCTL1 reg from
debugfs is more convenient for us.
Signed-off-by: William Wu <william.wu@rock-chips.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
John Youn [Mon, 23 May 2016 18:32:45 +0000 (11:32 -0700)]
usb: dwc3: gadget: Fix truncated cast issue
From sparse:
warning: cast truncates bits from constant value (100 becomes 0)
The DWC3_TRB_NUM constant is too big for u8. Do the calculation a
slightly different way that should still be optimized out for the case
where DWC3_TRB_NUM == 256.
Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
John Youn [Fri, 20 May 2016 00:26:17 +0000 (17:26 -0700)]
usb: dwc3: gadget: Handle TRB index 0 when full or empty
If the trb->enqueue == trb->dequeue, then it could be full or empty.
This could also happen at TRB index 0, so modify the check to handle
that condition. At index 0, the previous TRB is the one just before the
link TRB.
Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
John Youn [Fri, 20 May 2016 00:26:05 +0000 (17:26 -0700)]
usb: dwc3: gadget: Simplify skipping of link TRBs
Make the skipping of the link TRBS built-in to the increment operation.
This simplifies the code wherever we increment the trb index and ensures
that we never end up pointing to a link trb.
Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Mon, 23 May 2016 08:27:26 +0000 (11:27 +0300)]
usb: dwc3: gadget: no more tracking endpoint type with its name
I really thought this would be useful, but as it
turns out, it creates more problems than fixes. The
amount of times we had to fix this because some
other commit shuffled things around and ended up
regressing this tiny little string manupulation...
Might as well remove it, since it has a negligible
added benefit.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Mon, 16 May 2016 10:14:48 +0000 (13:14 +0300)]
usb: dwc3: implement runtime PM
this patch implements the most basic pm_runtime
support for dwc3. Whenever USB cable is dettached,
then we will allow core to runtime_suspend.
Runtime suspending will involve completely tearing
down event buffers and require a full soft-reset of
the IP.
Note that a further optimization could be
implemented once we decide to support hibernation,
which is to allow runtime_suspend with cable
connected when bus is in U3. That's subject to a
separate patch, however.
Tested-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Wed, 18 May 2016 09:37:21 +0000 (12:37 +0300)]
usb: dwc3: gadget: fix for possible endpoint disable race
when we call dwc3_gadget_giveback(), we end up
releasing our controller's lock. Another thread
could get scheduled and disable the endpoint,
subsequently setting dep->endpoint.desc to NULL.
In that case, we would end up dereferencing a NULL
pointer which would result in a Kernel Oops. Let's
avoid the problem by simply returning early if we
have a NULL descriptor.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
commit f3af36511e60 ("usb: dwc3: gadget: always
enable IOC on bulk/interrupt transfers") ended up
regressing Isochronous endpoints by clearing
DWC3_EP_BUSY flag too early, which resulted in
choppy audio playback over USB.
Fix that by partially reverting original commit and
making sure that we check for isochronous endpoints.
Fixes: f3af36511e60 ("usb: dwc3: gadget: always enable IOC
on bulk/interrupt transfers") Cc: <stable@vger.kernel.org> Signed-off-by: Konrad Leszczynski <konrad.leszczynski@intel.com> Signed-off-by: Rafal Redzimski <rafal.f.redzimski@intel.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Tue, 17 May 2016 11:55:58 +0000 (14:55 +0300)]
usb: dwc3: gadget: only resume USB2 PHY in <=HIGHSPEED
As a micro-power optimization, let's only resume the
USB2 PHY if we're working on <=HIGHSPEED. If we're
gonna work on SUPERSPEED or SUPERSPEED+, there's no
point in resuming the USB2 PHY.
Fixes: 2b0f11df84bb ("usb: dwc3: gadget: clear SUSPHY bit before ep cmds") Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Mon, 16 May 2016 11:17:06 +0000 (14:17 +0300)]
usb: dwc3: gadget: hold gadget IRQ in dwc->irq_gadget
by holding gadget's IRQ number in dwc->irq_gadget,
it'll be simpler to free_irq() and disable the IRQ
in case an IRQ fires while we are runtime suspended.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Mon, 16 May 2016 07:49:01 +0000 (10:49 +0300)]
usb: dwc3: core: re-factor init and exit paths
The idea of this patch is for dwc3_core_init() to
abstract all the details about how to initialize
dwc3 and dwc3_core_exit() to do the same for
teardown.
With this, we can simplify suspend/resume operations
by a large margin and always know that we're going
to start dwc3 from a known starting point.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Tue, 12 Apr 2016 13:53:39 +0000 (16:53 +0300)]
usb: dwc3: gadget: add a pointer to endpoint registers
By adding a pointer to endpoint registers' base
address, we can avoid using our controller-wide
struct dwc3 pointer for everything. At some point
this will allow us to have per-endpoint locks which
will, in turn, let us queue requests to separate
endpoints in parallel.
Because of this change our debugfs interface and io
accessors need to be changed accordingly.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Tue, 12 Apr 2016 13:42:43 +0000 (16:42 +0300)]
usb: dwc3: gadget: pass dep as argument to endpoint command
In all call sites of dwc3_send_gadget_ep_cmd() we
already had a valid dep pointer, so instead of
passing dwc and dep->number, which would be used to
fetch the same pointer we already had, just pass dep
directly.
In other words, we're changing:
struct dwc3_ep *dep = dwc[dep->number];
to just passing struct dwc3_ep *dep as argument.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Fri, 13 May 2016 11:09:59 +0000 (14:09 +0300)]
usb: dwc3: gadget: initialize NUMP based on RxFIFO Size
Instead of using burst size to configure NUMP, we
should be using RxFIFO Size instead. DWC3 is smart
enough to know that it shouldn't burst in case burst
size is 0.
Reported-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Fri, 13 May 2016 07:19:42 +0000 (10:19 +0300)]
usb: dwc3: gadget: return 0 if we try to Wakeup in superspeed
Instead of returning -EINVAL when someone calls
__dwc3_gadget_wakeup() in speeds > highspeed, let's
return 0. There are no problems for the driver for
calling it in superspeed as we cleanly just return.
This avoids an annoying WARN_ONCE() always
triggering during superspeed enumeration with LPM
enabled.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Thu, 12 May 2016 11:08:34 +0000 (14:08 +0300)]
usb: dwc3: gadget: prepare TRBs on update transfers too
If we're updating transfers, we can also prepare as
many TRBs as we can fit in the ring. Let's start
doing that.
This patch 'solves' a limitation of how many TRBs we
can prepare when we're getting close the end of the
ring. Instead driver to prepare only up to end of
the ring, we check if we have space to wrap around
the ring properly.
Note that this only happens when our enqueue and
dequeue pointers are equal (which is the case for
bulk endpoints after an XferComplete event).
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Thu, 12 May 2016 12:02:29 +0000 (15:02 +0300)]
usb: gadget: storage: increase maximum storage num buffers
With a default size of 16kiB and with maximum of 32
buffers, we can transfer up to 512kiB, however Linux
can transfer up to 1MiB in a single mass storage
block transfer to USB3 storage devices.
Because of this, 1MiB block transfers end up being
slower than 512kiB block transfers. Let's increase
maximum number of storage buffers to a ridiculous
amount (256) so that anybody wanting to test maximum
achievable throughput can do so.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Linus Torvalds [Sun, 19 Jun 2016 17:05:14 +0000 (07:05 -1000)]
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull UDF fixes and a reiserfs fix from Jan Kara:
"A couple of udf fixes (most notably a bug in parsing UDF partitions
which led to inability to mount recent Windows installation media) and
a reiserfs fix for handling kstrdup failure"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
reiserfs: check kstrdup failure
udf: Use correct partition reference number for metadata
udf: Use IS_ERR when loading metadata mirror file entry
udf: Don't BUG on missing metadata partition descriptor
Linus Torvalds [Sun, 19 Jun 2016 06:36:17 +0000 (20:36 -1000)]
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Another batch of fixes for ARM SoC platforms. Most are smaller fixes.
Two areas that are worth pointing out are:
- OMAP had a handful of changes to voltage specs that caused a bit of
churn, most of volume of change in this branch is due to this.
- There are a couple of _rcuidle fixes from Paul that touch common
code and came in through the OMAP tree since they were the ones who
saw the problems.
The rest is smaller changes across a handful of platforms"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (36 commits)
ARM: dts: STi: stih407-family: Disable reserved-memory co-processor nodes
ARM: dts: am437x-sk-evm: Reduce i2c0 bus speed for tps65218
ARM: OMAP2+: timer: add probe for clocksources
ARM: OMAP1: fix ams-delta FIQ handler to work with sparse IRQ
memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing
arm: Use _rcuidle for smp_cross_call() tracepoints
MAINTAINERS: Add myself as reviewer of ARM FSL/NXP
ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_mem_ret
ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_logic_ret
ARM: OMAP: DRA7: powerdomain data: Set L3init and L4per to ON
ARM: imx6ul: Fix Micrel PHY mask
ARM: OMAP2+: Select OMAP_INTERCONNECT for SOC_AM43XX
ARM: dts: DRA74x: fix DSS PLL2 addresses
ARM: OMAP2: Enable Errata 430973 for OMAP3
ARM: dts: socfpga: Add missing PHY phandle
ARM: dts: exynos: Fix port nodes names for Exynos5420 Peach Pit board
ARM: dts: exynos: Fix port nodes names for Exynos5250 Snow board
ARM: dts: sun6i: yones-toptech-bs1078-v2: Drop constraints on dc1sw regulator
ARM: dts: sun6i: primo81: Drop constraints on dc1sw regulator
ARM: dts: sunxi: Add OLinuXino Lime2 eMMC to the Makefile
...
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