linux/drivers/usb/host, branch v2.6.36

USB: EHCI: Disable langwell/penwell LPM capability

2010-09-20T23:04:59Z

We have to do so due to HW limitation. Signed-off-by: Alek Du Signed-off-by: Alan Cox Cc: stable Signed-off-by: Greg Kroah-Hartman

USB: ehci-ppc-of: problems in unwind

2010-09-04T00:33:40Z

The iounmap(ehci->ohci_hcctrl_reg); should be the first thing we do because the ioremap() was the last thing we did. Also if we hit any of the goto statements in the original code then it would have led to a NULL dereference of "ehci". This bug was introduced in: 796bcae7361c "USB: powerpc: Workaround for the PPC440EPX USBH_23 errata [take 3]" I modified the few lines in front a little so that my code didn't obscure the return success code path. Signed-off-by: Dan Carpenter Reviewed-by: Grant Likely Cc: stable Signed-off-by: Greg Kroah-Hartman

USB: xHCI: update ring dequeue pointer when process missed tds

2010-08-24T03:50:16Z

This patch fixes a isoc transfer bug reported by Sander Eikelenboom. When ep->skip is set, endpoint ring dequeue pointer should be updated when processed every missed td. Although ring dequeue pointer will also be updated when ep->skip is clear, leave it intact during missed tds processing may cause two issues: 1). If the very next valid transfer following missed tds is a short transfer, its actual_length will be miscalculated; 2). If there are too many missed tds during transfer, new inserted tds may found the transfer ring full and urb enqueue fails. Reported-by: Sander Eikelenboom Tested-by: Sander Eikelenboom Signed-off-by: Andiry Xu Signed-off-by: Sarah Sharp Signed-off-by: Greg Kroah-Hartman

USB: xhci: Remove buggy assignment in next_trb()

2010-08-24T03:50:16Z

The code to increment the TRB pointer has a slight ambiguity that could lead to a bug on different compilers. The ANSI C specification does not specify the precedence of the assignment operator over the postfix operator. gcc 4.4 produced the correct code (increment the pointer and assign the value), but a MIPS compiler that one of John's clients used assigned the old (unincremented) value. Remove the unnecessary assignment to make all compilers produce the correct assembly. Signed-off-by: John Youn Signed-off-by: Sarah Sharp Cc: stable Signed-off-by: Greg Kroah-Hartman

USB: isp1760: use a write barrier to ensure proper ndelay timing

2010-08-24T03:50:15Z

The ISP1760 has some timing requirements where it has to delay a short period after a write to a register has started. However, this delay is from the time the write hits the USB chip (the ISP1760), not from the time where the processor started processing the write. So on a quick enough processor, it is sometimes possible for the write to not hit the device before we start delaying, and we then violate the part's timing requirements, so things stop working. To avoid all this, insert a write barrier after the register write and before the timing delay/register read so we can guarantee we only start counting time after the write has hit the device. Signed-off-by: Michael Hennerich Signed-off-by: Mike Frysinger Signed-off-by: Greg Kroah-Hartman

Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging

2010-08-12T17:06:29Z

* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: i2c: I2C bus multiplexer driver pca954x i2c: Multiplexed I2C bus core support i2c: Use a separate mutex for userspace client lists i2c: Make i2c_default_probe self-sufficient i2c: Drop dummy variable i2c: Move adapter locking helpers to i2c-core V4L/DVB: Use custom I2C probing function mechanism i2c: Add support for custom probe function i2c-dev: Use memdup_user i2c-dev: Remove unnecessary kmalloc casts

Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6

2010-08-12T16:11:31Z

* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: mmc_spi: Fix unterminated of_match_table of/sparc: fix build regression from of_device changes of/device: Replace struct of_device with struct platform_device

i2c: Add support for custom probe function

2010-08-11T16:20:56Z

The probe method used by i2c_new_probed_device() may not be suitable for all cases. Let the caller provide its own, optional probe function. Signed-off-by: Jean Delvare Acked-by: Mauro Carvalho Chehab

USB: remove fake "address-of" expressions

2010-08-10T21:35:45Z

Fake "address-of" expressions that evaluate to NULL generally confuse readers and can provoke compiler warnings. This patch (as1412) removes three such fake expressions, using "#ifdef"s in their place. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman

USB: xhci: Set DMA mask for host.

2010-08-10T21:35:45Z

Tell the USB core that we can do DMA directly (instead of needing it to memory-map the buffers for PIO). If the xHCI host supports 64-bit addresses, set the DMA mask accordingly. Otherwise indicate the host can handle 32-bit DMA addresses. This improves performance because the USB core doesn't have to spend time remapping buffers in high memory into the 32-bit address range. Signed-off-by: Sarah Sharp Signed-off-by: Greg Kroah-Hartman