! has higher precedence than >= and since neither 0 nor 1 are greater
than 8 the condition is always false.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
For USB CONTROL transaction, when the data length is zero,
the IN package is needed to finish this transaction in status stage.
Signed-off-by: Jerry Huang <r66093@freescale.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch tidyup below smatch complaint
drivers/usb/renesas_usbhs/mod_host.c +447 usbhsh_endpoint_free()
warn: variable dereferenced before check 'uep' (see line 444)
Special thanks to Dan
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
For FSL PPC SoCs USB_ARCH_HAS_EHCI currently on depends on PPC_83xx.
However that excludes support for USB on 85xx & QorIQ devices. Use
FSL_SOC insted which will get us 83xx, 85xx, QorIQ, and 5xxx which all
have the same USB IP on them.
Signed-off-by: Xulei <B33228@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1489) works around a hardware bug in MosChip EHCI
controllers. Evidently when one of these controllers increments the
frame-index register, it changes the three low-order bits (the
microframe counter) before changing the higher order bits (the frame
counter). If the register is read at just the wrong time, the value
obtained is too low by 8.
When the appropriate quirk flag is set, we work around this problem by
reading the frame-index register a second time if the first value's
three low-order bits are all 0. This gives the hardware a chance to
finish updating the register, yielding the correct value.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Jason N Pitt <jpitt@fhcrc.org>
CC: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There is a race, reproduced rarely if you unload the module
when host finishes mass storage device initialization (reading
partition table and so on): fsg_unbind() code first closes
lun files then waits for worker thread to finish its work, as
the result the thread may operate on already closed device
with an oops and backtrace:
[ 484.937225] [<b00e403c>] (touch_atime+0x4/0x140) from [<b00a1498>] (generic_file_aio_read+0x678/0x6f0)
[ 484.946563] [<b00a1498>] (generic_file_aio_read+0x678/0x6f0) from [<b00d08c4>] (do_sync_read+0xb0/0xf4)
[ 484.955963] [<b00d08c4>] (do_sync_read+0xb0/0xf4) from [<b00d1478>] (vfs_read+0xac/0x144)
[ 484.964172] [<b00d1478>] (vfs_read+0xac/0x144) from [<af24c6a8>] (fsg_setup+0x7f4/0x900 [g_file_storage])
[ 484.973785] [<af24c6a8>] (fsg_setup+0x7f4/0x900 [g_file_storage]) from [<af24da14>] (fsg_main_thread+0x85c/0x175c [g_file_storage])
[ 484.985626] [<af24da14>] (fsg_main_thread+0x85c/0x175c [g_file_storage]) from [<b0077c48>] (kthread+0x7c/0x84)
[ 484.995666] [<b0077c48>] (kthread+0x7c/0x84) from [<b002f950>] (kernel_thread_exit+0x0/0x8)
[ 485.004028] Code: eaffffd0 e28dd008 e8bd8df0 e92d40f7 (e591400c)
Change the order in unbind: wait for the thread first, then close
the files.
Signed-off-by: Yauheni Kaliuta <yauheni.kaliuta@nokia.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
To be able to use the driver on other OF-aware architectures, too.
And add necessary OF related #includes to fix compilation error.
Signed-off-by: Joachim Foerster <joachim.foerster@missinglinkelectronics.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Some Stellaris evaluation kits have the JTAG/SWD FTDI chip onboard,
and some, like EK-LM3S9B90, come with a separate In-Circuit Debugger
Interface Board. The ICDI board can also be used stand-alone, for
other boards and chips than the kit it came with. The ICDI has both
old style 20-pin JTAG connector and new style JTAG/SWD 10-pin 1.27mm
pitch connector.
Tested with EK-LM3S9B90, where the BD-ICDI board is included.
Signed-off-by: Peter Stuge <peter@stuge.se>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
At least some OHCI hardware (such as the MCP89) fails to flag any change
in the host status register or the port status registers when receiving
a remote wakeup while in D3 state. This results in the controller being
resumed but no device state change being noticed, at which point the
controller is put back to sleep again. Since there doesn't seem to be any
reliable way to identify the state change, just unconditionally resume the
hub. It'll be put back to sleep in the near future anyway if there are no
active devices attached to it.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: stable <stable@vger.kernel.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
To add USB 3.0 link power management (LPM), we need to know what the U1
and U2 exit latencies are for the xHCI host controller. External USB 3.0
hubs report these values through the SuperSpeed Capabilities descriptor in
the BOS descriptor. Make the USB 3.0 roothub for the xHCI host behave
like an external hub and return the BOS descriptors.
The U1 and U2 exit latencies will vary across each host controller, so we
need to dynamically fill those values in by reading the exit latencies out
of the xHC registers. Make the roothub code in the USB core handle
hub_control() returning the length of the data copied.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This driver provides two functions in one configuration:
a mass storage, and a ACM (serial port) link.
Heavily based on multi.c and cdc2.c
Signed-off-by: Klaus Schwarzkopf <schwarzkopf@sensortherm.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
| drivers/usb/gadget/mv_udc_core.c: In function 'handle_setup_packet':
| drivers/usb/gadget/mv_udc_core.c:1556:6: warning: 'status' may be \
used uninitialized in this function
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch is going to support clock gating when vbus detection is
posible. Clock and phy will be on only when usb gadget is used(vbus valid).
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
use DMA API for status_req's dma address, it is needed by dtd.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The controller will prime failure sometimes when do the iperf test.
Add delay to wait controller release dtd dma before we free it.
Then the issue is gone.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch is going to correct the ep0 state, and the unexpected
ep0 package warning can be removed.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
1: Add parameter check.
2: For controller endpoint, we need to flush in and out directions.
3: delete redundant code, make it more readable.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
According to the comment right above the code, we should use
USB_ENDPOINT_XFER_BULK instead.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The ep enable / disable functions can be called from interrupt
context, and they are not race safe on SMP systems. The critical
data can be modified in more than one routing.
Make them race safe by using IRQ-safe spinlock functions.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
For the code doesn't restrict controller ep must be ep0, so we will go
through all the eps and check if there is a setup package received.
And also we just need to acknowledge the corresponding bit in
ENDPTSETUPSTAT register.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Set next dtd ptr to EP_QUEUE_HEAD_NEXT_TERMINATE for dqh when init ep0.
It means the dQH is empty.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
According to ChipIdea datasheet, there is no toggle flag for ep0.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The max size of data payload is in bit0 - bit10, so we need use 0x7ff
as the bitmask to fetch from usb_endpoint_descriptor.wMaxPacketSize.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Some platforms will use usb to download images, the controller may not
be stopped correctly when start kernel. In some cases, it may have some
pending interrupts, and they will be triggered immediately when we finish
requesting irq in function probe. But we haven't finished the device
initialization at this time. So let's stop udc here to avoid this case
occurred.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Tag the probe function as __devinit.
Tag the remove function as __devexit.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch do the following things:
1. Add header and Copyright for marvell usb driver.
2. Add mv_usb.h in include/linux/platform_data, make the driver
fits all the marvell platform using the same ChipIdea usb ip.
3. Some SOC may has mutiple clock sources, so let me define it
in mv_usb_platform_data and give two helper functions named
udc_clock_enable/udc_clock_disable to deal with the clocks.
4. Different SOCs will have some difference in PHY initialization,
so we will remove file mv_udc_phy.c and add two funtions in
mv_usb_platform_data, let the platform relative driver to realize it.
5. Rewrite probe function according to the modification list above. Find
it will kernel panic when probe failed. The root cause is as follows:
When probe failed, the error handle may call device_unregister()
which in return will call gadget_release.In current code,
gadget_release have two issues:
1: the_controller is a NULL pointer.
2: if we free udc here, then the following code in probe
will access NULL pointer.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
| drivers/usb/renesas_usbhs/fifo.c: In function ‘usbhsf_dma_prepare_push’:
| drivers/usb/renesas_usbhs/fifo.c:823:7: warning: cast from pointer \
to integer of different size [-Wpointer-to-int-cast]
| drivers/usb/renesas_usbhs/fifo.c: In function ‘usbhsf_dma_try_pop’:
| drivers/usb/renesas_usbhs/fifo.c:900:7: warning: cast from pointer \
to integer of different size [-Wpointer-to-int-cast]
Signed-off-by: Felipe Balbi <balbi@ti.com>
In current renesas-usbhs,
there was inconsistency about the style of kernel module or built-in.
This patch solve it.
[ balbi@ti.com : fix compile issue when building modules ]
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
renesas_usbhs has default callback functions and settings.
And it tried overwrite to platform private data
if platform doesn't have them.
So, if renesas_usbhs was compiled as module,
it will be hung-up on 2nd insmod.
This patch fixup it.
Special thanks to Bastian
Reported-by: Bastian Hecht <hechtb@googlemail.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This is mod_host prototype support for renesas_usbhs driver.
It doesn't support USB-Hub, and USB-DMAC for now.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
CCPL setting is needed on only mod_gadget.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
It is enabled to set SOF packet output bit when USBRST bit was set.
And USBRST bit should be set 0 when SOF packet was output.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
some renesas_usbhs device is supporting OTG external device interface.
In that device, it is necessary to control PWEN/EXTLP on DVSTCTR.
This patch support it.
But renesas_usbhs driver doesn't have OTG support for now.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
When data read interrupt happened, the pipe is BUF which means "enable".
then, next un-necessary interrupt/token might be
issued again when all data were popped from fifo.
It will cause un-understandable bug.
This patch decides pipe disable on top of read interrupt.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
renesas_usbhs can manually set DATA0/DATA1.
This patch is prepare for mod_host support
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Automatically packet start by usbhs_pkt_push() was useful.
But the pushed packet will be called twice
if new packet was pushed on usbhs_pkt :: done callback.
(1st is called by usbhs_pkt_push(), 2nd is called by usbhsf_pkt_handler())
This patch disables automatic packet start,
and clarified packet start timing.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
transfer done function was registered in struct struct usbhs_pipe_info.
It was good for mod_gadget, but not good for mod_host.
This function move it to struct usbhs_pkt.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
pipe name is usefull function for mod_xxx
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
device select method will be used on mod_host
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
There was no method to get struct usbhs_priv when
packet transfer done function was called.
This patch allow that callback function receive it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
renesas_usbhs device needs special bit settings
if it was mod_host and dcp pipe.
This patch support it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
it was possible to get usbhs_mod from usbhs_priv.
this patch remove unneeded parameter.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usbhs_usbreq_get/set_val() functions were in pipe.c file,
but it is irrelevant to pipe.
this patch move it to common.c
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Pipe type check macro will be used in other files.
This patch move local macro to global macro.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
current mod_gadget had got usb speed on
usbhsg_irq_dev_state() which is status change interrupt callback function.
And the usb speed data was included in its parameter.
But this style works for mod_gadget,
but doesn't work for mod_host which
isn't interrupted when device status was changed.
This patch add usbhs_bus_get_speed() to solve this issue.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
this patch add DVSTCTR control function for HOST support
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
renesas_usbhs will have register DVSTCTR control function for HOST support.
This patch changes usbhsc_bus_ctrl() to usbsc_set_buswait(),
to remove DVSTCTR access from it,
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
packet handler had moved to struct usbhs_pipe from struct usbhsg_uep.
it is preparation of mod_host support
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Current renesas_usbhs pipe accessed DCPMAXP/PIPEMAXP register
to get own maxpacket size every time.
But maxpacket size isn't changed after pipe start,
and register access is too slow.
This patch adds new maxp variable to keep own maxpacket.
And un-used function are removed.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Current usbhs_pipe_malloc() used usb_endpoint_descriptor to
get necessary information.
It was very good for mod_gadget which allocate pipe in runtime,
but is not good for mod_host which allocate pipe in initial timing.
This patch remove usb_endpoint_descriptor from usbhs_pipe_malloc()
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
There is no longer necessity that USBHSF_PKT_xxx are in fifo.h.
it are used in only fifo.c now.
This patch move it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
this patch adds superspeed descriptors for the
storage gadgets.
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
While being there, change C++ style comments to /* */.
Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: linux-usb@vger.kernel.org
Signed-off-by: Felipe Balbi <balbi@ti.com>
A recent commit obsoleted the is_vbus_present function, so
we must not use it any more.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The Synopsys USB device controller requires all OUT transfer request
lengths to be aligned to max packet size. The mass storage gadgets do
not meet this requirement for Super Speed. The gadgets already have a
function which performs this alignment for CBW packets, so use it for
data packets too.
The alternative would be to implement bounce buffers in the DWC3
driver, but that could have a significant impact on performance.
This version is based upon a more-correct patch written by Alan
Stern.
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The code in the MIDI gadget was already sort of prepared for multi-port
configuration, so the streaming logic itself didn't need much tweaking.
However, the descriptors change when the number of ports do, and so some
rework of the the preparation algorithms were necessary.
Successfully tested on Linux and Max OS X hosts for both input and
output streams.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Make use of the newly added MIDI function in f_midi.c and strip down
the MIDI gadget code radically. Also use the generic framework function
to avoid code duplication and rename some symbols to bring them in sync
with other code in the gadget framework.
[ balbi@ti.com : fix Section mismatch warnings.
rebased on top of usb_speed_string() patch to
avoid conflicts. ]
Signed-off-by: Daniel Mack <zonque@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch adds f_midi.c to implement a USB gadget function that works
with the composite framework, so it can be combined with other USB
functions.
The code for the ALSA/MIDI logic was taken from the midi device gadget,
other parts have been rewritten to benefit from the dynamic descriptor
allocation features.
This was successfully tested on an OMAP3 board.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Move function to fix langwell_udc.c build error:
drivers/usb/gadget/langwell_udc.c: In function 'show_langwell_udc':
drivers/usb/gadget/langwell_udc.c:1693:3: error: implicit declaration of function 'lpm_device_speed'
drivers/usb/gadget/langwell_udc.c: At top level:
drivers/usb/gadget/langwell_udc.c:2637:37: error: conflicting types for 'lpm_device_speed'
drivers/usb/gadget/langwell_udc.c:1693:20: note: previous implicit declaration of 'lpm_device_speed' was here
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Felipe Balbi <balbi@ti.com>
Cc: linux-usb@vger.kernel.org
SH7757 has a USB function with internal DMA controller (SUDMAC).
This patch supports the SUDMAC. The SUDMAC is incompatible with
general-purpose DMAC. So, it doesn't use dmaengine.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch also fix the balance of braces.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
R8A66597 has the pin of WR0 and WR1. So, if one write-pin of CPU
connects to the pins, we have to change the setting of FIFOSEL
register in the controller. If we don't change the setting,
the controller cannot send the data of odd length.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
* pm-runtime:
PM / Tracing: build rpm-traces.c only if CONFIG_PM_RUNTIME is set
PM / Runtime: Replace dev_dbg() with trace_rpm_*()
PM / Runtime: Introduce trace points for tracing rpm_* functions
PM / Runtime: Don't run callbacks under lock for power.irq_safe set
USB: Add wakeup info to debugging messages
PM / Runtime: pm_runtime_idle() can be called in atomic context
PM / Runtime: Add macro to test for runtime PM events
PM / Runtime: Add might_sleep() to runtime PM functions
These files uses the full set of MODULE_ macros and so need to
include module.h directly.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
our parameter structures need to be written to
HW, so instead of assuming little endian, we
convert those into bit shifts.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The dwc3 core has internal clock gating support.
Let's allow that to happen by clearing the disable
bit in GCTL register.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
cache the contents of GHWPARAMS* registers in
our device structure for easy access.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
That structure will hold a copy of readonly
GHWPARAMS* registers for ease accessing by
the driver.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The following patch adds support for streams
to dwc3 driver.
While at that, also fix one small issue on
endpoint disable where we should clear all
flags not only ENABLED.
Reviewied-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We already have the value from gadget drivers,
just need to pass it to our controller.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This makes DWC3_EP_WEDGE do the right thing, which is
prevent DWC3_EP_WEDGE from ever being cleared by a
ClearFeature(HALT) command.
[ balbi@ti.com : allowed set_wedge to send SetHalt command
to controller ]
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
An older version of the databook said to wait for the FIFO to
drain, but that has been removed from the newer databooks.
Waiting for RxFIFO to drain caused problems when testing against
one of the host controllers available in the market.
After talking to one of the RTL engineers, he stated that we
should _not_ wait for RxFIFO to drain.
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
DEPSTARTCFG for non-EP0 EPs must only be sent once per config
[ balbi@ti.com : changed config_start to start_config_issued ]
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Some people think that this line is not compatible with the GPL. The
statement was required due to the Buenos Aires Convention and is now
deprecated. I remove it because it is said that it is pointless nowdays.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use "ep0in" and "ep0out" instead "ep1in" and "ep0out" which is confusing
and not consistent with the remaining output.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
