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The ehci_w90x900_probe function is not doing anything other than
calling usb_w90x900_probe function so ehci_w90x900_probe function
is unuseful that is why removed ehci_w90x900_probe functions and
renamed usb_w90x900_probe function to ehci_w90x900_probe for proper
naming.
The ehci_w90x900_remove function is also not doing anything other
than calling usb_w90x900_remove that is why removed ehci_w90x900_remove
function and renamed usb_w90x900_remove to ehci_w90x900_remove for proper
naming.
This also removes warning of checkpatch.pl script.
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: linux-usb@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Allows configuring Samsung's s3c2410 USB OHCI controller using a
devicetree.
Signed-off-by: Sergio Prado <sergio.prado@e-labworks.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The da8xx ohci controller is not working after suspend and resume.
This is because only the root hub is being resumed.
Balance the ohci_suspend of the suspend path with an ohci_resume
in the resume path so that we resume the entire controller, and not
just the root hub.
Also, while we are here, remove setting device power_state,
as this is no longer needed and scheduled for removal
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This adds the compatible string to the ohci driver
to be able to probe from DT
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using a regulator to handle VBUS will eliminate the need for
platform data and callbacks, and make the driver more generic
allowing different types of regulators to handle VBUS.
The regulator equivalents to the platform callbacks are:
set_power -> regulator_enable/regulator_disable
get_power -> regulator_is_enabled
get_oci -> regulator_get_error_flags
ocic_notify -> regulator event notification
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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To migrate to a DT based boot, we will remove the use of platform
callbacks, in favor of using the regulator framework to handle
vbus and over current.
In preparation to use a regulator instead of callbacks, move the platform
data callbacks into separate functions. This provides well defined place
to for the regulator API to coexist with the platform callbacks before
all users are converted.
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Instead of global variables, use the extra_priv_size of
the ohci driver.
We cannot yet move the ocic mask because this is used on
the interrupt handler which is registered through platform
data and does not have an hcd pointer. This will be moved
on a later patch.
Tested-by: David Lechner <david@lechnology.com>
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This driver is for Fintek F81532/F81534 USB to Serial Ports IC.
F81532 spec:
https://drive.google.com/file/d/0B8vRwwYO7aMFOTRRMmhWQVNvajQ/view?usp=
sharing
F81534 spec:
https://drive.google.com/file/d/0B8vRwwYO7aMFV29pQWJqbVBNc00/view?usp=
sharing
Features:
1. F81532 is 1-to-2 & F81534 is 1-to-4 serial ports IC
2. Support Baudrate from B50 to B115200.
Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next
Peter writes:
- Adding ULPI PHY support for imx53
- Properly mark little endian descriptors for udc
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We want the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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udplite conflict is resolved by taking what 'net-next' did
which removed the backlog receive method assignment, since
it is no longer necessary.
Two entries were added to the non-priv ethtool operations
switch statement, one in 'net' and one in 'net-next, so
simple overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
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The davinci ohci driver name (currently "ohci") is too generic.
To be consistent with other usb dirvers, append the "-da8xx" postfix
to the name.
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The DA8xx OTG PHY has some issues when it is forced in host or
peripheral mode. Actually, most of the time, OTG is the best mode
because host or peripheral mode are only required for hardware that
miss some circuitry.
Init the PHY mode OTG mode by default.
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The first attempt to read a register may fail because the clock may not
be enabled, and then the probe of musb driver will fail.
Call clk_prepare_enable() before the first register read.
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This adds DT support for TI DA8xx/OMAP-L1x/AM17xx/AM18xx MUSB driver
Signed-off-by: Petr Kulhavy <petr@barix.com>
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Tested-by: David Lechner <david@lechnology.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This adds the function musb_get_mode() to get the DT property "dr_mode"
Signed-off-by: Petr Kulhavy <petr@barix.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Tested-by: David Lechner <david@lechnology.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There is no point having this complaint to be dev_err as it is just adding
noise to bootlog.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Replace pr_err with dev_err to print also device name.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Don't complain on -EPROBE_DEFER when initializing controller,
the driver probe will be retried later.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The sunxi musb has a bug where sometimes it will generate a babble
error on device disconnect instead of a disconnect irq. When this
happens the musb-controller switches from host mode to device mode
(it clears MUSB_DEVCTL_SESSION and sets MUSB_DEVCTL_BDEVICE) and
gets stuck in this state.
Clearing this requires reporting Vbus low for 200 or more ms, but
on some devices Vbus is simply always high (host-only mode, no Vbus
control).
This commit adds a sunxi_musb_recover() callback which makes
sunxi_musb_work call phy_set_mode with the current mode, which
will force end the current session.
This fixes the musb controller getting stuck in this state on systems
without Vbus control; and also fixes the need to unplug the usb-b ->
usb-a cable to get out of this state on systems with Vbus control.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The musb core already handles babble interrupts, so the sunxi glue
having its own custom handling is redundant.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove comments about resume signalling being stopped from
GetPortStatus, something which is no longer the case.
Fixes: 8ed1fb790ea2 ("usb: musb: finish suspend/reset work...")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We should use new API dma_pool_zalloc instead of dma_pool_alloc/memset.
Signed-off-by: Shashi Bhusan <shashibhushan4u123@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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On sparc32, tcflag_t is unsigned long, unlike all other architectures:
drivers/usb/serial/cp210x.c: In function 'cp210x_get_termios':
drivers/usb/serial/cp210x.c:717:3: warning: passing argument 2 of 'cp210x_get_termios_port' from incompatible pointer type
cp210x_get_termios_port(tty->driver_data,
^
drivers/usb/serial/cp210x.c:35:13: note: expected 'unsigned int *' but argument is of type 'tcflag_t *'
static void cp210x_get_termios_port(struct usb_serial_port *port,
^
Consistently use tcflag_t to fix this.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
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Read urbs are submitted back only on success, causing read pipe
running out of urbs after few errors. No more characters can
be read from tty device then until it is reopened and no errors
are reported.
Fix that by always submitting urbs back and clearing stall on
-EPIPE.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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is_int_ep is used only in acm_probe, no need to store it in device data.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Clearing stall needs pipe descriptor, store it in acm structure.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Move urb killing code into separate function and use it
instead of copying that code pattern over.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Pointer to usb_device is already stored in acm structure.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use only one tab to indent dev_{(v)dbg,err} parameters.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes:
usb: patches for v4.10 merge window
One big merge this time with a total of 166 non-merge commits.
Most of the work, by far, is on dwc2 this time (68.2%) with dwc3 a far
second (22.5%). The remaining 9.3% are scattered on gadget drivers.
The most important changes for dwc2 are the peripheral side DMA support
implemented by Synopsys folks and support for the new IOT dwc2
compatible core from Synopsys.
In dwc3 land we have support for high-bandwidth, high-speed isochronous
endpoints and some non-critical fixes for large scatter lists.
Apart from these, we have our usual set of cleanups, non-critical fixes,
etc.
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git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
USB-serial fixes for v4.9-rc6
Here are a couple of new device ids.
Signed-off-by: Johan Hovold <johan@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
Felipe writes:
usb: fixes for v4.9-rc5
One single fix for FunctionFS to make sure we're checking
ffs_func_req_match()'s return code correctly.
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Add check for NULL before calling kthread_stop().
There were cases in which gserial_console_exit() was called, but the
console thread was not started. This resulted in an invalid
kthread_stop(NULL) call.
Without this, the following Oops may occur:
BUG: unable to handle kernel
NULL pointer dereference at 0000000000000018
IP: [<ffffffffb3ca1166>] kthread_stop+0x16/0x110
...
CPU: 2 PID: 853 Comm: rmmod Not tainted 4.9.0-rc5 #3
Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z77 Extreme3, BIOS P1.50 07/11/2013
task: ffff880419f6a100 task.stack: ffffc90002e8c000
RIP: 0010:[<ffffffffb3ca1166>] [<ffffffffb3ca1166>] kthread_stop+0x16/0x110
RSP: 0018:ffffc90002e8fdb0 EFLAGS: 00010286
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000246 RDI: 0000000000000000
RBP: ffffc90002e8fdc8 R08: 0000000000000000 R09: 0000000000000001
R10: 000000000000019d R11: 000000000000001f R12: 0000000000000000
R13: ffff88041b8d8400 R14: 0000000000000001 R15: 000055fd59f5a1e0
FS: 00007f82500be700(0000) GS:ffff88042f280000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000018 CR3: 000000041bee2000 CR4: 00000000001406e0
Stack:
0000000000000000 ffffffffc0b8e720 ffff88041b8d8400 ffffc90002e8fdf0
ffffffffc0b8bb52 ffff88041a106300 0000000000000001 ffff880419fc2ea8
ffffc90002e8fe08 ffffffffc0aed749 ffffffffc0aef600 ffffc90002e8fe20
Call Trace:
[<ffffffffc0b8bb52>] gserial_free_line+0x72/0xb0 [u_serial]
[<ffffffffc0aed749>] acm_free_instance+0x19/0x30 [usb_f_acm]
[<ffffffffc0b01b40>] usb_put_function_instance+0x20/0x30 [libcomposite]
[<ffffffffc04a603b>] gs_unbind+0x3b/0x70 [g_serial]
[<ffffffffc0b018d1>] __composite_unbind+0x61/0xb0 [libcomposite]
[<ffffffffc0b01933>] composite_unbind+0x13/0x20 [libcomposite]
[<ffffffffc08ef1ad>] usb_gadget_remove_driver+0x3d/0x90 [udc_core]
[<ffffffffc08ef26e>] usb_gadget_unregister_driver+0x6e/0xc0 [udc_core]
[<ffffffffc0aff6d2>] usb_composite_unregister+0x12/0x20 [libcomposite]
[<ffffffffc04a6268>] cleanup+0x10/0xda8 [g_serial]
[<ffffffffb3d0c0c2>] SyS_delete_module+0x192/0x270
[<ffffffffb3c032a0>] ? exit_to_usermode_loop+0x90/0xb0
[<ffffffffb4228a3b>] entry_SYSCALL_64_fastpath+0x1e/0xad
Code: 89 c6 e8 6e ff ff ff 48 89 df e8 06 bd fd ff 5b 5d c3 0f 1f 00 0f 1f 44 00 00 55 48 89 e5 41 55 41 54 49 89 fc 53 0f 1f 44 00 00 <f0> 41 ff 44 24 18 4c 89 e7 e8 bc f1 ff ff 48 85 c0 48 89 c3 74
RIP [<ffffffffb3ca1166>] kthread_stop+0x16/0x110
RSP <ffffc90002e8fdb0>
CR2: 0000000000000018
---[ end trace 5b3336a407e1698c ]---
Signed-off-by: Felix Hädicke <felixhaedicke@web.de>
Tested-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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The dma mask is correctly set up by the DT probe function, no
need to override it any more.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sriram Dash <sriram.dash@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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The dma ops for dwc3 devices are not set properly. So, use a
physical device sysdev, which will be inherited from parent,
to set the hardware / firmware parameters like dma.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sriram Dash <sriram.dash@nxp.com>
Tested-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Building with W=1, we get a warning about harmless empty statements:
drivers/usb/dwc3/ep0.c: In function 'dwc3_ep0_handle_intf':
drivers/usb/dwc3/ep0.c:491:4: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
Instead of adding empty braces which would introduce checkpatch.pl
warnings, we're just removing the code which doesn't do anything and
making sure we return 0 so USBCV tool is happy.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Removed extern specifier from dwc2_host_start(), dwc2_host_disconnect()
and dwc2_host_hub_info() functions. Moved those functions from header
to source. Then make them static.
Signed-off-by: Razmik Karapetyan <razmik@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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NPTXFIFO's start address is showing 0x03000000 instead of 0x00000800.
Replaced val & FIFOSIZE_DEPTH_MASK by val & FIFOSIZE_STARTADDR_MASK in
fifo_show() function.
Signed-off-by: Razmik Karapetyan <razmik@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Remove request length checking from dwc2_hsotg_unmap_dma() and
dwc2_hsotg_map_dma(). That checking is done in functions called from
those functions, usb_gadget_unmap_request_by_dev() and
usb_gadget_map_request_by_dev() respectively, so it's unnecessary.
Signed-off-by: Razmik Karapetyan <razmik@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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While sending zlp for DWC2_EP0_STATUS_IN EP direction was changed to IN.
Change it back to complete OUT transfer request.
This affects only on DMA mode, because DMA buffer map/unmap function is
direction sensitive.
Signed-off-by: Razmik Karapetyan <razmik@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Check the request length in dwc2_hsotg_start_req() function. If
length == 0, do not write DMA address to control register.
Signed-off-by: Razmik Karapetyan <razmik@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Stop sending complete split requests in case of ISOC IN split transfers
after getting data with PID0. Otherwise we will get a NYET for each
additional IN token.
Signed-off-by: Sevak Arakelyan <sevaka@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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dwc3_pci_dsm() is only needed if (PM || PM_SLEEP),
we should make sure it's not defined if neither of
those is defined.
This fixes a randconfig build warning.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This is a workaround for STAR 9000961433 which affects only version
3.00a of the DWC_usb3 core. This prevents the controller interrupt from
being masked while handling events. Enabling interrupt moderation allows
us to work around this issue because once the GEVNTCOUNT.count is
written the IRQ is immediately deasserted and won't be asserted again
until GEVNTCOUNT.EHB is cleared.
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Implement interrupt moderation which allows the interrupt rate to be
throttled. To enable this feature the dwc->imod_interval must be set to
1 or greater. This value specifies the minimum inter-interrupt interval,
in 250 ns increments. A value of 0 disables interrupt moderation.
This applies for DWC_usb3 version 3.00a and higher and for DWC_usb31
version 1.20a and higher.
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This patch adds support for the "amcc,usb-otg" device
which is found in the PowerPC Canyonlands' dts.
The device definition was added by:
commit c89b3458d8cc ("powerpc/44x: Add USB DWC DTS entry to Canyonlands
board")
but without any driver support as the dwc2 driver wasn't available at
that time.
Note: The system can't use the generic "snps,dwc2" compatible
because of the special ahbcfg configuration. The default
GAHBCFG_HBSTLEN_INCR4 of snps,dwc2 can cause a system hang
when the USB and SATA is used concurrently.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This patch moves the the host_dma initialization
before dwc2_set_param_dma_desc_enable() and
dwc2_set_param_dma_desc_fs_enable(). The reason being
that both function need it.
Fixes: 1205489cee75bf39 ("usb: dwc2: Get host DMA device properties")
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Added new core param for low speed, which can be used only when SNPSID
is equal to DWC2_CORE_FS_IOT. When LS mode is enabled, we are
restricting ep types and providing to upper layer only INTR and CTRL
endpoints.
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>
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When device is enumerated in LS we should program ep0_mps accordingly.
USB2 spec says that in LS mode, control ep mps must be 8.
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>
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