Matthew Wilcox [Wed, 15 Dec 2010 20:44:03 +0000 (15:44 -0500)]
USB: uas: Use kzalloc instead of kmalloc
The IUs are not being fully initialised by the driver (due to the reserved
space). Since we should be zeroing reserved fields, use kzalloc to do
it for us.
Matthew Wilcox [Wed, 15 Dec 2010 20:44:02 +0000 (15:44 -0500)]
USB: uas: Fix up the Sense IU
Add a comment to the Sense IU data structure that it's also used for Read
Ready and Write Ready. Remove the 'service response' element since it's
gone from the current draft (04).
Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sergei Shtylyov [Fri, 10 Dec 2010 17:23:06 +0000 (20:23 +0300)]
DA8xx: assign name to MUSB IRQ resource
Commit fcf173e4511193b1efeccb0f22a8c641b464353b (usb: musb: add names for IRQs
in structure resource) forgot to assign name to the DA8xx MUSB IRQ resource.
Because of that MUSB driver fails to load on DA8xx machines.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Yauheni Kaliuta [Wed, 8 Dec 2010 11:12:04 +0000 (13:12 +0200)]
usb: gadget: u_ether: prepare for NCM
NCM is a Network Control Model, subclass of USB CDC class,
specification is available at http://www.usb.org/developers/devclass_docs
This patch makes possible for u_ether to use multiply of wMaxPacketSize
predefined size transfers without ZLP (Zero Length Packet), required
by NCM spec.
Richard Röjfors [Tue, 7 Dec 2010 16:28:33 +0000 (17:28 +0100)]
usb: pch_udc: Fix setup transfers with data out
This patch fixes an issue where the driver does not handle out data in
setup transactions.
The per endpoint cached status register is cleared in the
pch_udc_svc_control_out function. When there is out data available the
function pch_udc_svc_data_out is called which tries to pick it up the
status, which now is cleared to 0. When the status is 0, the function
doesn't start reading the data from the FIFO.
There is a second bug in all this, pch_udc_svc_data_out takes the
endpoint number (0 for EP0), while pch_udc_svc_control_out passes the
endpoint index (1 for EP0). Effectively pch_udc_svc_data_out picks up
the wrong internal ep structure.
This patch makes sure to put back the cached status and pass the
endpoint number rather than index when calling pch_udc_svc_data_out.
Signed-off-by: Richard Röjfors <richard.rojfors@pelagicore.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Richard Röjfors [Tue, 7 Dec 2010 16:28:30 +0000 (17:28 +0100)]
usb: pch_udc: Fix compile error, warnings and checkpatch warnings
Building pch_udc in linux-next fails, this patch fixes the a compile
error:
drivers/usb/gadget/pch_udc.c: In function ‘usb_gadget_register_driver’:
drivers/usb/gadget/pch_udc.c:2645: error: ‘struct usb_gadget_driver’ has no member named ‘bind’
drivers/usb/gadget/pch_udc.c:2664: error: ‘struct usb_gadget_driver’ has no member named ‘bind’
And a couple of compiler warnings and checkpatch warnings.
Signed-off-by: Richard Röjfors <richard.rojfors@pelagicore.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
USB: gadget: Add USB controller driver for MSM SoC
MSM SoC has chipidea USB controller. So use ci13xxx_udc core.
This driver depends on transceiver driver for clock control,
PHY initialization, VBUS detection. Register for notify_event
callback to perform MSM specific quirks after controller is reset
and stopped.
Introduces ci13xxx_udc_driver struct for bus glue drivers to hint
ci13xxx_udc core about their special requirements. The flags include
avoiding hardware register access when controller is not in peripheral
mode, enabling pull-up upon VBUS, disabling streaming mode and dependency
on transceiver driver.
Initialize gadget_ops in udc_probe so that transceiver can notify VBUS
presence even when no gadget driver is bounded.
A notify_event callback is embedded in the same struct. This patch implements
two events called CONTROLLER_RESET_EVENT and CONTROLLER_STOPPED_EVENT to
notify the bus glue driver after resetting and stopping the controller for
performing SoC specific quirks.
dma_alloc_coherent() which is internally called by dma_pool_alloc()
flags a warning if device's coherent DMA mask. Hence initialize
gadget device's coherent DMA mask to it's parent mask.
USB: gadget: Separate out PCI bus code from ci13xxx_udc
Move PCI bus code from ci13xxx_udc to a new file ci13xxx_pci. SoC's
which has MIPS USB core can include the ci13xxx_udc and keep bus glue
code in their respective gadget controller drivers.
Implement runtime and system pm ops to put hardware into low power
mode (LPM). As part of LPM, USB clocks are turned off, PHY is put
into suspend state and PHY comparators are turned off if VBUS/Id
notifications are not required from PHY.
Enable runtime PM and mark no_callbacks flag. OTG device, parent of
HCD takes care of putting hardware into low power mode. Adjust port
power wakeup flags during system suspend and resume.
This patch adds support for EHCI compliant HSUSB Host controller found
on MSM chips. The root hub has a single port and TT is built into it.
This driver depends on OTG driver for PHY initialization, clock
management and powering up VBUS.
This driver implements PHY initialization, clock management, ULPI IO ops
and simple OTG state machine to kick host/peripheral based on Id/VBUS
line status. VBUS/Id lines are tied to a reference voltage on some boards.
Hence provide debugfs interface to select host/peripheral mode.
Alex He [Tue, 7 Dec 2010 02:10:08 +0000 (10:10 +0800)]
USB: EHCI: ASPM quirk of ISOC on AMD SB800
When ASPM PM Feature is enabled on UMI link, devices that use ISOC stream of
data transfer may be exposed to longer latency causing less than optimal per-
formance of the device. The longer latencies are normal and are due to link
wake time coming out of low power state which happens frequently to save
power when the link is not active.
The following code will make exception for certain features of ASPM to be by
passed and keep the logic normal state only when the ISOC device is connected
and active. This change will allow the device to run at optimal performance
yet minimize the impact on overall power savings.
Signed-off-by: Alex He <alex.he@amd.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
USB: otg: fix link breakage, when the NOP USB Xceiver is a module
If the NOP USB OTG transceiver driver is built as a module, the otg.h
header declares external functions, but if they are referenced from the
kernel proper, as, e.g., in the OMAP3 case, where the omap3evm board is
calling the usb_nop_xceiv_register() function, linkage breaks. This patch
fixes this problem.
Commit 06c3859 (usb: gadget/imx-udc: remove usage of deprecated symbol
USBD_INT0) was a bit precipitant because the name used instead didn't
match the usual naming scheme for irqs on arm/imx. I renamed the irq to
the right name in e083000 (ARM: imx: dynamically allocate imx_udc
device) when 06c3859 didn't hit Linus' tree, so I missed to add a
compat #define.
This patch allows compiling imx_udc.c with and without e083000.
Hema HK [Fri, 10 Dec 2010 12:40:51 +0000 (18:10 +0530)]
usb: musb: Adding musb support for OMAP4430
OMAP4430 supports UTMI and ULPI types of transceiver interface.
In UTMI mode: The PHY is embedded within OMAP4430. The transceiver functionality
is split between the twl6030 PMIC chip and OMAP4430. The VBUS, ID pin
sensing and OTG SRP generation part is integrated in TWL6030 and UTMI PHY
functionality is embedded within the OMAP4430.
There is no direct interactions between the MUSB controller and TWL6030
chip to communicate the session-valid, session-end and ID-GND events.
It has to be done through a software by setting/resetting bits in
one of the control module register of OMAP4430 which in turn toggles
the appropriate signals to MUSB controller.
musb driver is register for blocking notifications from the transceiver
driver to get the event notifications for connect/disconnect and ID-GND.
Based on these events call the transceiver init/shutdown function to
configure the transceiver to toggle the VBUS valid, session end and ID_GND
signals to musb and power on/off the internal PHY.
For ID_GND event notifications, toggle the ID_GND signal and then wait for
musb to be configured as "A" device, and then call the transceiver function
to set the VBUS.
In OTG mode and musb as a host, When the Micro A connector used, VBUS is turned on
and session bit set. When the device is connected, enumeration goes through.
When the device disconnected from the other end of the connector(ID is still grounded),
link will detect the disconnect and end the session. When the device is connected back,
there are no events generated in the TWL6030-usb, and link is already down.
So the device is not detected. Removed the session bit disable code which
will recognize the connect of the device.
Limitation: In OTG host mode, if device is connected during boot, it does not get
detected. If disconnect and connect it back or connect after boot only it works.
Fix for this, I will submit seperate patch later.
Signed-off-by: Hema HK <hemahk@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Hema HK [Fri, 10 Dec 2010 12:39:52 +0000 (18:09 +0530)]
mfd: TWL6030: OMAP4: Registering the TWL6030-usb device
Registering the twl6030-usb transceiver device as a child to twl6030 core.
Removed the NOP transceiver init call from board file.
Populated twl4030_usb_data platform data structure with the function
pointers for OMAP4430 internal PHY operation to be used by twl630-usb driver.
Signed-off-by: Hema HK <hemahk@ti.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Hema HK [Fri, 10 Dec 2010 12:28:20 +0000 (17:58 +0530)]
usb: otg: Adding twl6030-usb transceiver driver for OMAP4430
Adding the twl6030-usb transceiver support for OMAP4 musb driver.
OMAP4 supports 2 types of transceiver interface.
1. UTMI: The PHY is embedded within OMAP4. The transceiver functionality
is split between the twl6030 PMIC chip and OMAP4430. The VBUS, ID pin
sensing and OTG SRP generation part is integrated in TWL6030 and UTMI PHY
functionality is embedded within the OMAP4430.
There is no direct interactions between the MUSB controller and TWL6030
chip to communicate the session-valid, session-end and ID-GND events.
It has to be done through a software by setting/resetting bits in
one of the control module register of OMAP4430 which in turn toggles
the appropriate signals to MUSB controller.
The internal transceiver has functional clocks and
powerdown bits to powerdown the PHY for power saving.
Since there is no option available for having 2 transceiver drivers
for one USB controller, internal PHY specific APIs are passed through
plaform_data function pointers to use in the twl6030-usb transceiver
driver.
2. ULPI interface is provided for off-chip transceivers.
Signed-off-by: Hema HK <hemahk@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Felipe Balbi <balbi@ti.com>
Hema HK [Fri, 10 Dec 2010 12:25:37 +0000 (17:55 +0530)]
mfd: TWL6030: USBOTG VBUS event generation on
With TWL6030-usb, VBUS SESS_VLD and SESS_END events are not generated
as expected. When these interrupts are enabled, charger VBUS detection
interrupt does not get generated. So USBOTG has to be dependent on charger
VBUS interrupts.
So added one bit for USBOTG and changed the handler to call the
USBOTG handler whenever there is a charger VBUS interrpt.
VBUS SESS_VLD and SESS_END event generation issue is under debug with
HW team. This fix might not be required once after fixing the issue.
Signed-off-by: Balaji TK <balajitk@ti.com> Signed-off-by: Hema HK <hemahk@ti.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
musb: am35x: fix compile error due to control apis
commit 4814ced5116e3b73dc4f63eec84999739fc8ed11 (OMAP:
control: move plat-omap/control.h to mach-omap2/control.h)
moved <plat/control.h> to another location, preventing
drivers from accessing it, so we need to pass function
pointers from arch code to be able to talk to internal
PHY on AM35x.
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Felipe Balbi [Thu, 2 Dec 2010 11:17:53 +0000 (13:17 +0200)]
usb: musb: drop musb_platform_suspend/resume
all glue layers are now fully moved to the
new setup. We are now using dev_pm_ops to
implement suspend/resume functionality and
thus, musb_platform_suspend/resume has become
deprecated and useless.
This patch drops those function pointers and
its uses.
Felipe Balbi [Thu, 2 Dec 2010 11:13:09 +0000 (13:13 +0200)]
usb: musb: blackfin: usb dev_pm_ops structure
instead of using musb_platform_suspend_resume,
we can use dev_pm_ops and let platform_device
core handle when to call musb_core's suspend and
glue layer's suspend.
Felipe Balbi [Thu, 2 Dec 2010 10:53:22 +0000 (12:53 +0200)]
usb: musb: am35x: usb dev_pm_ops structure
instead of using musb_platform_suspend_resume,
we can use dev_pm_ops and let platform_device
core handle when to call musb_core's suspend and
glue layer's suspend.
Felipe Balbi [Thu, 2 Dec 2010 10:44:40 +0000 (12:44 +0200)]
usb: musb: omap2430: use dev_pm_ops structure
instead of using musb_platform_suspend/resume,
we can use dev_pm_ops and let the platform_device
core handle when to call musb_core's suspend and
glue layer's suspend.
Felipe Balbi [Thu, 2 Dec 2010 07:57:08 +0000 (09:57 +0200)]
usb: musb: move clock handling to glue layer
musb core doesn't need to know about platform
specific details. So start moving clock
handling to platform glue layer and make
musb core agnostic about that.
Felipe Balbi [Thu, 2 Dec 2010 07:42:50 +0000 (09:42 +0200)]
usb: musb: blackfin: give it a context structure
that structure currently only holds a device
pointer to our own platform_device and musb's
platform_device, but soon it will hold pointers
to our clock structures and glue-specific bits
and pieces.
Felipe Balbi [Thu, 2 Dec 2010 07:40:34 +0000 (09:40 +0200)]
usb: musb: da8xx: give it a context structure
that structure currently only holds a device
pointer to our own platform_device and musb's
platform_device, but soon it will hold pointers
to our clock structures and glue-specific bits
and pieces.
Felipe Balbi [Thu, 2 Dec 2010 07:38:12 +0000 (09:38 +0200)]
usb: musb: davinci: give it a context structure
that structure currently only holds a device
pointer to our own platform_device and musb's
platform_device, but soon it will hold pointers
to our clock structures and glue-specific bits
and pieces.
Felipe Balbi [Thu, 2 Dec 2010 07:35:58 +0000 (09:35 +0200)]
usb: musb: tusb6010: give it a context structure
that structure currently only holds a device
pointer to our own platform_device and musb's
platform_device, but soon it will hold pointers
to our clock structures and glue-specific bits
and pieces.
Felipe Balbi [Thu, 2 Dec 2010 07:33:24 +0000 (09:33 +0200)]
usb: musb: am35x: give it a context structure
that structure currently only holds a device
pointer to our own platform_device and musb's
platform_device, but soon it will hold pointers
to our clock structures and glue-specific bits
and pieces.
Felipe Balbi [Thu, 2 Dec 2010 07:27:29 +0000 (09:27 +0200)]
usb: musb: omap2430: give it a context structure
that structure currently only holds a device
pointer to our own platform_device and musb's
platform_device, but soon it will hold pointers
to our clock structures and glue-specific bits
and pieces.
Felipe Balbi [Wed, 1 Dec 2010 12:23:48 +0000 (14:23 +0200)]
usb: musb: add Kconfig options for each glue layer
This will make things simpler when choosing which
glue layer to compile. It avoids a lot of magic
around the "default" Kconfig option and lets the
user choose what exactly s/he wants to compile.
Felipe Balbi [Wed, 1 Dec 2010 11:22:05 +0000 (13:22 +0200)]
usb: musb: make all glue layer export struct musb_platform_ops
preparing to a big refactor on musb code. We need
to be able to compile in all glue layers (or at
least all ARM-based ones) together and have a
working binary.
While preparing for that, we move every glue
layer to export only one symbol, which is
a struct musb_platform_ops, and make all
other functions static.
Later patches will come to allow for compiling
all glue layers together and have a working
binary.
Felipe Balbi [Thu, 21 Oct 2010 10:56:40 +0000 (13:56 +0300)]
usb: musb: introduce struct musb_platform_ops
This will be passed to musb_core by platform glue
layer in order to make it easier to compile support
for several HW glue layers.
Later patches will come using this structure and
also moving HW glue layers to its own platform
driver; the idea is to be able to handle platform
peculiarities in a manner which doesn't affect one
another.
Merge branch 'sh/ehci' of master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6 into work
* 'sh/ehci' of master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Convert to USB_ARCH_HAS_OHCI/EHCI selects.
usb: ehci-sh: Add missing ehci helpers.
usb: ehci-sh: Fix up fault in shutdown path.
sh: Add EHCI support for SH7786.
usb: ehci-hcd: Add support for SuperH EHCI.
usb: ohci-sh: Set IRQ as shared.
Richard Röjfors [Wed, 1 Dec 2010 10:53:00 +0000 (11:53 +0100)]
usb: g_audio: Fix crash at driver removal
If g_audio fails to open the sound control device, it crashes at removal:
Insertion:
[ 4143.836536] g_audio gadget: unable to open sound control device file: /dev/snd/controlC0
[ 4143.836543] g_audio gadget: we need at least one control device
[ 4143.836551] g_audio gadget: Linux USB Audio Gadget, version: Dec 18, 2008
[ 4143.836558] g_audio gadget: g_audio ready
Hema Kalliguddi [Wed, 29 Sep 2010 16:26:39 +0000 (11:26 -0500)]
usb: musb: add names for IRQs in structure resource
Soon resource data will get automatically
populated from a set of autogenerated data
from TI's hardware database for the OMAP
platform.
Such database, might not have resources at
the expected order by the current drivers.
While we could hack in some exceptions to
that tool to generate resources in a specific
order, it seems less fragile to use the
resource name instead. That way, no matter
what order the resources are generated, the
driver still work.
Modified the OMAP, Blackfin and Davinci
architecture files to add the name of the IRQs
in the resource structures and musb driver to
use the platform_get_irq_byname() api to get
the device and dma irq numbers instead of using
the index.
Cc: Tony Lindgren <tony@atomide.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Hema HK <hemahk@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Hema Kalliguddi [Thu, 23 Sep 2010 00:27:40 +0000 (19:27 -0500)]
usb: musb: remove board_data parameter from musb_platform_init()
Removed the board_data parameter being
passed to musb_platform_init function
as board_data can be extracted from
device structure which is already member
of musb structure.
Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Hema HK <hemahk@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
cxie4 [Tue, 30 Nov 2010 05:35:15 +0000 (13:35 +0800)]
USB: pxa: Add USB client support for Marvell PXA9xx/PXA168 chips
This patch add USB client support Marvell PXA9xx/PXA168 chips. The USB
controller in PXA9xx/PXA168 is a High-Speed OTG controller. The available
endpoints is different between PXA9xx and PXA168.
NOTE:
It is the first version of Marvell PXA9xx/PXA168 USB controller driver.
The support for OTG mode will be added in later patch.
PXA9xx and PXA168 has integrated UTMI PHY in the chips. The initialization
for the PHY is a little different between PXA9xx and PXA168.
Paul Mundt [Tue, 30 Nov 2010 08:57:02 +0000 (17:57 +0900)]
usb: Add in missing EHCI helpers.
Several of the EHCI glue drivers either predate or were merged in the
same timeframe as API changes at the USB core level, resulting in some
missing endpoint_reset and clear_tt_buffer_complete callbacks.
This fixes up all of ehci-atmel, mxc, w90x900, and xilinx-of to tie in
the new helpers, which brings them in line with everyone else.
Reported-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Hao Wu [Mon, 29 Nov 2010 07:17:03 +0000 (15:17 +0800)]
usb: composite gadget: set vbus_draw current limitation during suspend
This patch modifies the composite gadget to set vbus_draw current limitation
during suspend state. This current limitation in suspend state shouldn't be
more than 2.5mA
Jarkko Nikula [Tue, 30 Nov 2010 15:58:25 +0000 (17:58 +0200)]
usb: otg: twl4030-usb: Fix unbalanced regulator disables at module removal
Function twl4030_usb_remove can cause unbalanced regulator disables in
twl4030_phy_power if the cable is not connected. Regulator enable/disable
calls are in balance only if the twl4030_phy_resume was called prior the
twl4030_usb_remove, that is, the cable was connected.
Fix this by checking the 'asleep' variable in twl4030_usb_remove since that
variable is used to check state in other functions.
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Cc: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dan Williams [Fri, 19 Nov 2010 22:04:00 +0000 (16:04 -0600)]
usb-wwan: implement TIOCGSERIAL and TIOCSSERIAL to avoid blocking close(2)
Some devices (ex ZTE 2726) simply don't respond at all when data is sent
to some of their USB interfaces. The data gets stuck in the TTYs queue
and sits there until close(2), which them blocks because closing_wait
defaults to 30 seconds (even though the fd is O_NONBLOCK). This is
rarely desired. Implement the standard mechanism to adjust closing_wait
and let applications handle it how they want to.
Jesper Juhl [Mon, 8 Nov 2010 23:10:52 +0000 (00:10 +0100)]
USB: Remove unnecessary casts of void ptr returning alloc function return values
Hi,
The [vk][cmz]alloc(_node) family of functions return void pointers which
it's completely unnecessary/pointless to cast to other pointer types since
that happens implicitly.
Pete Zaitcev [Wed, 17 Nov 2010 04:51:19 +0000 (21:51 -0700)]
usbmon: correct length for isochronous
Usually the usbmon returns the amount of data specified in
urb->transfer_buffer_length for output submissions and urb->actual_length
for input callbacks. However, for Isochronous input transfers, this is
not enough, since the returned data buffer may contain "holes".
One easy way to fix this is to use urb->transfer_buffer_length,
but this often transfers a whole lot of unused data, so we find
how much was actually used instead.
Original patch by Márton Németh. See also kernel bug 22182.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Márton Németh <nm127@freemail.hu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Anand Gadiyar [Sun, 21 Nov 2010 17:53:42 +0000 (23:23 +0530)]
usb: ehci-omap: Add OMAP4 support
Update the ehci-omap glue layer to support the controller in the
OMAP4. Major differences from OMAP3 is that the OMAP4 has per-port
clocking, and supports ULPI output clocking mode. The old input
clocking mode is not supported.
Also, there are only 2 externally available ports as against 3
in the OMAP3. The third port is internally tied off and should
not be used.
Anand Gadiyar [Sun, 21 Nov 2010 17:53:41 +0000 (23:23 +0530)]
usb: ehci-omap: use clkdev aliases for functional clocks
Use the recently updated aliases to get functional clocks needed by
the driver. This allows the driver to acquire OMAP4-specific clocks
without having to use different clock names for OMAP3 and OMAP4.
Introduce the CONFIG_USB_EHCI_HCD_OMAP option to select
EHCI support on OMAP3 and later chips. This scales better
than having a long line of dependencies for each new OMAP
with EHCI support.
Make the TLL channel count a parameter instead of a hardcoded
value. This allows us to be flexible with future OMAP revisions
which could have a different number of channels.
projects / linux-beck.git / log