Commit graph

161 commits

Author SHA1 Message Date
Roel Kluin
08e6c972da USB: musb: test always evaluates to false
The removed part always evaluates to false.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2010-03-02 14:54:54 -08:00
Cliff Cai
9f445cb299 USB: musb: disable double buffering for older RTL versions
Trying to use double buffer modes in RTL versions <2.0 may result in
infinite hangs or data corruption.  So avoid them with older versions.

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:54:48 -08:00
Cliff Cai
0ded2f146a USB: musb: set version of Blackfin version
All current Blackfin parts are using RTL v1.9, but they don't expose the
hardware registers to probe this dynamically.  So hardcode the version to
v1.9 for now.

Need to move the local hwvers related defines higher up in the header so
that sub-musb headers may utilize them.

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:54:48 -08:00
Felipe Balbi
ab3bbfa1af USB: musb: only print info message if probe() is successful
we were printing the info about musb probe too early where
it was still possible for things to go wrong. Move the
down right before the return 0 statement. While at that
also convert pr_info to dev_info.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:54:45 -08:00
Felipe Balbi
da5108e1a3 USB: musb: unmap base if we can't probe
when probe() fails, we should iounmap() the mapped address.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:54:43 -08:00
Felipe Balbi
3d268645d5 USB: musb: tusb6010: use resource_size
Trivial patch, no functional changes.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:54:42 -08:00
Felipe Balbi
ad517e9ed8 USB: musb: we already tested for dyn_fifo
... and even added a flag to struct musb, so let's
use that.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:54:39 -08:00
Felipe Balbi
8573e6a673 USB: musb: get rid of omap_readl/writel
we have those addresses already ioremaped, so let's
use our __raw_readl/writel wrappers.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:54:38 -08:00
Ajay Kumar Gupta
4f712e010b usb: musb: Add context save and restore support
Adding support for MUSB register save and restore during system
suspend and resume.

Changes:
        - Added musb_save/restore_context() functions
        - Added platform specific musb_platform_save/restore_context()
          to handle platform specific jobs.
        - Maintaining BlackFin compatibility by adding read/write
          functions for registers which are not available in BlackFin

Tested system suspend and resume on OMAP3EVM board.

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:54:38 -08:00
Roel Kluin
94089d56e4 USB: musb: don't dereference NULL tusb_dma in dma_controller_destroy()
Test whether tusb_dma is not NULL before dereferencing

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:54:14 -08:00
Ajay Kumar Gupta
5fc4e77911 usb: musb: Add 'extvbus' in musb_hdrc_platform_data
Some of the board might use external Vbus power supply on musb
interface which would require to program ULPI_BUSCONTROL register.

Adding 'extvbus' flag which can be set from such boards which will
be checked at musb driver files before programming ULPI_BUSCONTROL.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:53:48 -08:00
Ajay Kumar Gupta
51bf0d0e6c usb: musb: save dynfifo in musb struct
Save dynamic FIFO read only information for later uses during
musb_save/restore_context functions.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:53:48 -08:00
Arnaud Mandy
1c25fda4a0 usb: musb: handle irqs in the order dictated by programming guide
MUSB's programming guide dictates how we should handle its
irqs and in which order. Follow that.

Signed-off-by: Arnaud Mandy <ext-arnaud.2.mandy@nokia.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:53:47 -08:00
Bryan Wu
1ca9e9ca31 usb: musb: clean up commit 'workaround Blackfin FIFO anomalies'
The version applied had a few comments which are now
done.

Thanks to Sergei for pointing out.

Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:53:47 -08:00
Swaminathan S
565969237a usb: musb: Fix cppi_channel_abort() function to handle Tx abort correctly
This patch fixes the Tx abort/teardown logic. We now wait for the teardown
completion interrupt and acknowledge the same by setting the tx_complete
register to 0.

This change is needed to ensure that abort processing works on DM365 platform.
Without this change after completion of abort processing the system is
overwhelmed with continuous stream of abort interrupts.

This change has been tested on all CPPI3.x platforms (DM644x, DM646x, DM35x,
DM36x).

Signed-off-by: Swaminathan S <swami.iyer@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:53:46 -08:00
Swaminathan S
5274dab6cb usb: musb: workaround toggle bug when doing bulk transfer after isoc
This patch implements the work around for a Mentor controller related
bug where it's observed a BULK Tx toggle error on the bus when a
BULK IO gets scheduled on an endpoint that was earlier used for
handling ISOC transaction and needed to start on 1 toggle.  When such
a situation arises even if the TXCSR toggle bits are programmed
correctly by the musb driver the data gets transmitted with 0 toggle
which leads to toggle error on the bus and the BULK transaction fails.
In case of MSC write, the device gets reset by the Host.

This Mentor bug is observed on almost all Mentor versions (1.3, 1.5,
1.8).  Confirmed on DM644x, DM355, DM365, OMAPL13x platforms.

Signed-off-by: Swaminathan S <swami.iyer@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:53:45 -08:00
Anand Gadiyar
f933a0c0fe usb: musb: workaround MUSB DMA_INTR sometimes reads zero
MUSB DMA_INTR register may sometimes read zero when infact there
was a pending interrupt. Workaround this by reading the DMA_COUNT
values for all enabled channels when this condition occurs.
Flag these channels as the ones needing to be serviced.

Additionally, the absence of a debug print meant we would never
catch a spurious DMA interrupt in MUSB. So this patch adds a
debug print in the IRQ handler.

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Cc: Ajay Kumar Gupta <ajay.gupta@ti.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:53:42 -08:00
Anand Gadiyar
452f039437 usb: musb: hsdma: add wrapper for reading DMA count
Add a wrapper for reading the DMA count register, analogous
to the one for writing to this register.

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Cc: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:53:41 -08:00
Ajay Kumar Gupta
3b151526ed USB: musb: Add new fifo table for a OMAP3 errata
We have observed MSC data read corruption when USB LAN device is
also connected and it's interface is up.

Silicon team has confirmed an errata where in all the active
transfers should use FIFO space either in first 8K or next 8K.
So far we have observed the issue in above use case scenario.

As a workaround to it, adding a new FIFO config (5) fitting well
within first 8K which can be used for such use cases.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Acked-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:53:41 -08:00
Felipe Balbi
7ed069c12c USB: musb: remove some of the never defined defines
just makes the musb init code a bit cleaner.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:53:29 -08:00
Felipe Balbi
94375751d1 USB: musb: move to sysfs_groups
it's easier to keep up and add more sysfs entries
as necessary.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:53:29 -08:00
Felipe Balbi
b3b1cc3ba6 USB: musb: move two printk to dev_err
trivial cleanup, no functional changes.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:53:29 -08:00
Felipe Balbi
195e9e4691 USB: musb: use resource_size()
it makes ioremap() usage looks cleaner.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-02 14:53:28 -08:00
Bryan Wu
1c4bdc01b8 USB: musb: workaround Blackfin FIFO anomalies
Some of these workarounds are already in place, but labeled as affecting
all BF52x parts.  Since we have official anomaly numbers now, use those
defines.  And since writing to the FIFO has a similar hang issue as reading
from the FIFO, implement the workaround there too when necessary.

Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:34:19 -08:00
Maulik Mankad
0ea52ff44f USB: musb: Fix array index out of bounds issue
This patch fixes the below array index out of bounds issue.

Buffer overflow, array index of 'aInfo' may be out of
bounds. Array 'aInfo' of size 78 may use index value(s) 6..84

The data stored in 'aInfo' array exceeds the array size of 78.

This patch increases the size of this array to hold the string
correctly without any memory corruption.

This issue was reported by Klockwork tool.

Signed-off-by: Maulik Mankad <x0082077@ti.com>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:34:19 -08:00
Maulik Mankad
0abdc36f06 USB: musb: Fix null pointer dereference issue
This patch fixes the following NULL pointer dereference issue.

Pointer 'request' returned from call to function 'next_request'
at line 748 may be NULL and may be dereferenced at line 792.

============
Code Snippet
============

748:  request = next_request(musb_ep);
785: if (dma && (csr & MUSB_RXCSR_DMAENAB)) {
	csr &= ~(MUSB_RXCSR_AUTOCLEAR
			| MUSB_RXCSR_DMAENAB
			| MUSB_RXCSR_DMAMODE);
	musb_writew(epio, MUSB_RXCSR,
		MUSB_RXCSR_P_WZC_BITS | csr);

792:	 request->actual += musb_ep->dma->actual_len;
		

Signed-off-by: Maulik Mankad <x0082077@ti.com>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:34:19 -08:00
Cliff Cai
796a83fa03 USB: musb: correct DMA address for tx
Since a DMA transfer may need to be kicked off several times to complete,
the DMA start must include the length that has already been transferred.

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:34:18 -08:00
Sergei Shtylyov
17be5c5f5e USB: musb: gadget_ep0: avoid SetupEnd interrupt
Gadget stalling a zero-length SETUP request results in this error message:

SetupEnd came in a wrong ep0stage idle

In order to avoid it, always set the CSR0.DataEnd bit after detecting a zero-
length request.  Add the missing '\n' to the error message itself as well...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Acked-by: Anand Gadiyar <gadiyar@ti.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:34:18 -08:00
Swaminathan S
93aa3dab00 USB: musb: fix for crash in DM646x USB when (CPPI)DMA is enabled
Race condition exists between the cppi_interrupt handler and
davinci_interrupt handler w.r.t completing a TX IO.  Since DM646x
has seperate DMA and USB endpoint interrupts cppi_interrupt handler
needs to hold the lock while operating on the endpoint.

Update over previous patch to avoid taking the lock if already
taken.  Tested on DM644x, DM355 and DM646x platforms.

Signed-off-by: Swaminathan S <swami.iyer@ti.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Acked-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:34:17 -08:00
Felipe Balbi
cd42fef0a0 USB: musb: do not work if no gadget driver is loaded
On OTG and gadget-only configurations, we need a gadget driver
in order to work properly, so avoid changing operation modes
when there's no gadget driver loaded.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:34:17 -08:00
Arnaud Mandy
d4c433fe6f USB: musb: gadget: set otg tranceiver to idle when registering gadget
When registering gadget driver, the state of the transceiver
must be set from undefined (no gadget) to b_idle.

Module unload sets the transceiver state to undefined state.
After the first load/unload pair, the reset irq will be lost.

Signed-off-by: Arnaud Mandy <ext-arnaud.2.mandy@nokia.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:34:17 -08:00
Swaminathan S
a2396a32b8 USB: musb: Populate the VBUS GPIO with the correct GPIO number
This fixes a null-pointer dereference bug.

Signed-off-by: Swaminathan S <swami.iyer@ti.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Acked-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:34:13 -08:00
Cliff Cai
f95c4c0186 USB: musb: fix compiling warning with min() macro
Current musb gadget dma code produces the warning:
drivers/usb/musb/musb_gadget.c: In function 'txstate':
drivers/usb/musb/musb_gadget.c:312: warning: comparison of distinct
                                             pointer types lacks a cast

So switch to min_t(size_t, ...).

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:34:13 -08:00
Felipe Balbi
e3060b175c USB: musb: move musb_remove to __exit
probe() already was on __init, so moving remove() to __exit.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:34:13 -08:00
Sergei Shtylyov
95962a773c USB: musb_gadget: fix kernel oops in txstate()
Commit 7723de7e19 (USB: musb_gadget: remove
pointless loop) included uncalled for (and incorrect) optimization that
might cause a kernel oops in txstate() -- undo it.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:34:12 -08:00
Alexey Dobriyan
471452104b const: constify remaining dev_pm_ops
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:25 -08:00
Felipe Balbi
8b4959d6a5 USB: musb: musb_host: fix sparse warning
Fix the following sparse warning:

drivers/usb/musb/musb_host.c:1642:9: warning: symbol 'status' shadows an earlier one

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 11:55:28 -08:00
Felipe Balbi
1b6c3b0fb2 USB: musb: musb_gadget: fix sparse warning
Fix the following sparse warnings:

drivers/usb/musb/musb_gadget.c:1161:5: warning: symbol 'musb_gadget_set_halt' was not declared. Should it be static?

drivers/usb/musb/musb_gadget.c:1244:5: warning: symbol 'musb_gadget_set_wedge' was not declared. Should it be static?

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 11:55:28 -08:00
Felipe Balbi
ff85494b3f USB: musb: omap2430: fix sparse warning
Fix the following sparse warning:

drivers/usb/musb/omap2430.c:314:16: warning: Using plain integer as NULL pointer

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 11:55:28 -08:00
Sergei Shtylyov
7723de7e19 USB: musb_gadget: remove pointless loop
Remove the pointless 'do () while (0)' loop from musb_g_tx() -- it
makes this function symmetric to musb_g_rx()...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 11:55:25 -08:00
Sergei Shtylyov
46034dca51 USB: musb_gadget_ep0: stop abusing musb_gadget_set_halt()
Stop playing with musb->lock and abusing musb_gadget_set_halt() in
the code clearing the endpoint halt feature -- instead, manipulate
the registers directly.

While at it, get rid uf unneeded line breaks and over-indentation in
the code setting the endpoint halt feature.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 11:55:25 -08:00
Sergei Shtylyov
47e9760529 USB: musb_gadget: implement set_wedge() method
Implement the driver's set_wedge() method by adding the 'wedged' flag
to the 'struct musb_ep'.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 11:55:25 -08:00
Sergei Shtylyov
196f1b7a38 USB: musb_gadget_ep0: fix unhandled endpoint 0 IRQs, again
Commit a5073b5283 (musb_gadget: fix
unhandled endpoint 0 IRQs) somehow missed its key change:

"The gadget EP0 code routinely ignores an interrupt at end of
the data phase because of musb_g_ep0_giveback() resetting the
state machine to "idle, waiting for SETUP" phase prematurely."

So, the majority of the cases of unhandled IRQs is still unfixed...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 11:55:25 -08:00
Anand Gadiyar
32c3b94e2b USB: MUSB: save hardware revision at init
MUSB: save hardware revision at init

This can be used later to flag workarounds for issues affecting
particular revisions. Saving this at init avoids having to
read the HWVERS register multiple times in code.

While at it, use macros to extract the version information
instead of using hardcoded values.

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Cc: Ajay Kumar Gupta <ajay.gupta@ti.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 11:55:25 -08:00
Mike Frysinger
32340d3f75 USB: musb: fix printf warning in debug code
The debug code in the DMA ISR uses a %d for a size_t when it should be
using %zu.  Otherwise gcc whines with:

drivers/usb/musb/musbhsdma.c: In function 'dma_controller_irq':
drivers/usb/musb/musbhsdma.c:288: warning: format '%d' expects type 'int',
	but argument 7 has type 'size_t'

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 11:55:25 -08:00
Cliff Cai
8ba63a2296 USB: musb: Blackfin code needs NOP_USB_XCEIV too
Otherwise we get the link failure:
drivers/built-in.o: In function 'musb_platform_init':
drivers/usb/musb/blackfin.c:300: undefined reference to 'usb_nop_xceiv_register'
make: *** [.tmp_vmlinux1] Error 1

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 11:55:24 -08:00
Sonic Zhang
0702794c41 USB: musb: error out when anomaly 05000380 is applicable
Since we can't work around anomaly 05000380, throw a build error up and
instruct the user to use a different mode.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 11:55:24 -08:00
Cliff Cai
6bd03e7b9d USB: musb: clear the Blackfin interrupt pending bits early in the ISR
If we clear the interrupt pending bits at the end, we sometimes return too
fast and have the same interrupt assert itself.  There is no way in a
Blackfin system to force a sync of this state, so the hardware manual
instructs people to clear interrupt flags early in their ISR.

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 11:55:24 -08:00
Bryan Wu
2002e7684d USB: musb: fix musb_platform_set_mode() definition
Update function definition to match latest MUSB framework.

Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 11:55:24 -08:00
Sonic Zhang
9720faec51 USB: musb: add work around for Blackfin anomaly 05000456
Only allow USE_MODE1 when the Blackfin part is not affected by anomaly
05000456 (USB Receive Interrupt Is Not Generated in DMA Mode 1) since we
can't support the mode in that case.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 11:55:24 -08:00