linux-toradex.git/drivers/uio, branch v3.11

uio: use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT

2013-07-03T23:07:26+00:00

(*->vm_end - *->vm_start) >> PAGE_SHIFT operation is implemented
as a inline funcion vma_pages() in linux/mm.h, so using it.

Signed-off-by: Libin 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drivers: uio_pdrv_genirq: Use of_match_ptr() macro

2013-06-26T00:22:30+00:00

This eliminates having an #ifdef returning NULL for the case
when OF is disabled.

Signed-off-by: Sachin Kamat 
Signed-off-by: Greg Kroah-Hartman

UIO: Fix concurrency issue

2013-06-24T23:31:21+00:00

In a SMP case there was a race condition issue between
uio_pdrv_genirq_irqcontrol() running on one CPU and irq handler on
another CPU. Fix it by spin_locking shared resources access inside irq
handler.  Also:
  - Change disable_irq to disable_irq_nosync to avoid deadlock, because
    disable_irq waits for the completion of the irq handler;
  - Change atomic bit-manipulation routines to their non-atomic
    counterparts as we already are guarding the code by spinlock.

Signed-off-by: Vitalii Demianets 
Reviewed-by: Pavel Machek 
Signed-off-by: Greg Kroah-Hartman

drivers: uio_dmem_genirq: Use of_match_ptr() macro

2013-06-24T23:29:59+00:00

This eliminates having an #ifdef returning NULL for the case
when OF is disabled.

Signed-off-by: Sachin Kamat 
Acked-by: Damian Hobson-Garcia 
Signed-off-by: Greg Kroah-Hartman

UIO: fix uio_pdrv_genirq with device tree but no interrupt

2013-06-18T22:44:59+00:00

If device is initialized from device tree, but has no interrupt
assigned, uio will still try to request and interrupt old way,
fails, and fails registration.

This is wrong; don't try initializing irq using platform data if
device tree is available.

Simplified code based on suggestion by Grant Likely.

Fixed memory leak in "irq can not be registered" error path.

Signed-off-by: Pavel Machek 
Reported-by: Detlev Zundel 
Signed-off-by: Greg Kroah-Hartman

UIO: allow binding uio_pdrv_genirq.c to devices using command line option

2013-06-18T22:44:59+00:00

This adds ability to bind uio driver to given open firmware device
using command line option. Thus, userspace driver can be developed and
used without modifying the kernel.

Signed-off-by: Pavel Machek 
Tested-by: Detlev Zundel 
Signed-off-by: Greg Kroah-Hartman

uio: uio_pruss: Fix potential NULL pointer dereference

2013-06-06T19:54:09+00:00

In function pruss_probe we free gdev and try to use
it on the next line. I have moved the dereference to
above the kfree of gdev.

Signed-off-by: Emil Goode 
Signed-off-by: Greg Kroah-Hartman

Merge 3.10-rc3 into char-misc-next

2013-05-27T01:40:19+00:00

We want the changes in here.

Signed-off-by: Greg Kroah-Hartman

uio/uio_pci_generic: Use module_pci_driver to register driver

2013-05-21T20:59:25+00:00

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

It removes a pr_info showing some details about the driver, but
these infos can also be retrieved by using modinfo.

The name of the pci_driver struct had to be changed in order to prevent a
build failure.

Signed-off-by: Peter Huewe 
Signed-off-by: Greg Kroah-Hartman

uio: UIO_DMEM_GENIRQ should depend on HAS_DMA

2013-05-21T17:13:23+00:00

If NO_DMA=y:

drivers/built-in.o: In function `uio_dmem_genirq_release':
drivers/uio/uio_dmem_genirq.c:95: undefined reference to `dma_free_coherent'
drivers/built-in.o: In function `uio_dmem_genirq_open':
drivers/uio/uio_dmem_genirq.c:61: undefined reference to `dma_alloc_coherent'

Signed-off-by: Geert Uytterhoeven 
Cc: Hans J. Koch 
Cc: Greg Kroah-Hartman 
Signed-off-by: Greg Kroah-Hartman