linux-toradex.git/drivers/dma/mpc512x_dma.c, branch v4.9.118 Linux kernel for Apalis and Colibri modules Merge branch 'topic/err_reporting' into for-linus 2016-10-03T03:47:33+00:00 Vinod Koul vinod.koul@intel.com 2016-10-03T03:47:33+00:00 11bfedff5594eef74617e6aa02986cf517526b98 Signed-off-by: Vinod Koul <vinod.koul@intel.com> Conflicts: drivers/dma/cppi41.c 
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

Conflicts:
	drivers/dma/cppi41.c
dmaengine: NO_IRQ removal from powerpc-only drivers 2016-09-14T13:27:38+00:00 Michael Ellerman mpe@ellerman.id.au 2016-09-10T09:56:04+00:00 aa570be6de67f3772cc850a7bfbe659214aa9ee4 We'd like to eventually remove NO_IRQ on powerpc, so remove usages of it from powerpc-only drivers. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Vinod Koul <vinod.koul@intel.com> 
We'd like to eventually remove NO_IRQ on powerpc, so remove usages of it
from powerpc-only drivers.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
dmaengine: mpc512x_dma: convert callback to helper function 2016-08-08T02:41:40+00:00 Dave Jiang dave.jiang@intel.com 2016-07-20T20:12:07+00:00 ad34636885bee29e473bea4e2540fe5fb8efb564 This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com> 
This is in preperation of moving to a callback that provides results to the
callback for the transaction. The conversion will maintain current behavior
and the driver must convert to new callback mechanism at a later time in
order to receive results.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
dmaengine: mpc512x: kill the tasklets upon exit 2016-07-16T14:49:05+00:00 Vinod Koul vinod.koul@intel.com 2016-07-04T10:43:09+00:00 085fedf7ee17a966d3e5b5d8523a18e3017242cf drivers should ensure that tasklets are killed, so that they can't be run after driver remove is executed Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Mario Six <mario.six@gdsys.cc> 
drivers should ensure that tasklets are killed, so that they can't be
run after driver remove is executed

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Cc: Mario Six <mario.six@gdsys.cc>
dmaengine: mpc512x: Fix code style 2016-04-04T16:50:10+00:00 Mario Six mario.six@gdsys.cc 2016-03-18T13:57:21+00:00 77fc397661e714c2bc4f96ae38f6776c15cc85ab Signed-off-by: Mario Six <mario.six@gdsys.cc> Signed-off-by: Vinod Koul <vinod.koul@intel.com> 
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
dmaengine: mpc512x: Implement additional chunk sizes for DMA transfers 2016-04-04T16:50:10+00:00 Mario Six mario.six@gdsys.cc 2016-03-18T13:57:20+00:00 899ed9dd4f2d007dfad66cd074b8ff26a0894ae8 This patch extends the capabilities of the driver to handle DMA transfers to and from devices of 1, 2, 4, 16 (for MPC512x), and 32 byte widths. Signed-off-by: Mario Six <mario.six@gdsys.cc> Signed-off-by: Vinod Koul <vinod.koul@intel.com> 
This patch extends the capabilities of the driver to handle DMA
transfers to and from devices of 1, 2, 4, 16 (for MPC512x), and 32 byte
widths.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
dmaengine: mpc512x: Fix hanging DMA device transfer for MPC8308 2016-04-04T16:50:10+00:00 Mario Six mario.six@gdsys.cc 2016-03-18T13:57:19+00:00 237ec70903bcf50768138b6c663c67ef1f946cc8 Since the MPC8308 has no external request lines to initiate DMA transfers, all transfers must be triggered by software. Because of this, the current implementation of DMA transfers from and to devices on MPC8308 SoCs using major and minor loops is faulty: After the completion of the first major loop, the DMA engine resets the start flag in the channel's TCD, thus halting the transfer. The driver would have to set the start bit again to trigger the next iteration of the major loop; on MPC512x SoCs, this is done via the external request lines, so in this case, the driver doesn't have to interfer in any way. This has the effect that on MPC8308s, every DMA transfer to or from a device hangs after executing the first major loop. The patch fixes this behavior by using just one major loop for the whole DMA transfer on MPC8308s. Signed-off-by: Mario Six <mario.six@gdsys.cc> Signed-off-by: Vinod Koul <vinod.koul@intel.com> 
Since the MPC8308 has no external request lines to initiate DMA transfers,
all transfers must be triggered by software.

Because of this, the current implementation of DMA transfers from and to
devices on MPC8308 SoCs using major and minor loops is faulty: After the
completion of the first major loop, the DMA engine resets the start flag in
the channel's TCD, thus halting the transfer. The driver would have to set
the start bit again to trigger the next iteration of the major loop; on
MPC512x SoCs, this is done via the external request lines, so in this case,
the driver doesn't have to interfer in any way.

This has the effect that on MPC8308s, every DMA transfer to or from a
device hangs after executing the first major loop.

The patch fixes this behavior by using just one major loop for the whole
DMA transfer on MPC8308s.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
dmaengine: mpc512x: Fix module autoload for OF platform driver 2015-10-01T02:04:31+00:00 Luis de Bethencourt luis@debethencourt.com 2015-09-16T20:58:22+00:00 9ace300c98fd0b7280968195caaa7e7bbebefad1 This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> 
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
dmaengine: constify of_device_id array 2015-03-18T16:43:14+00:00 Fabian Frederick fabf@skynet.be 2015-03-16T19:17:14+00:00 57c0342239b028db54741209a051a4d5f7c857e7 of_device_id is always used as const. (See driver.of_match_table and open firmware functions) Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Vinod Koul <vinod.koul@intel.com> 
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
dmaengine: Remove FSF mailing addresses 2015-03-16T16:58:15+00:00 Jarkko Nikula jarkko.nikula@linux.intel.com 2015-03-16T07:37:24+00:00 3b62286d0ef785815994e2558e8cfb686597b0cd Free Software Foundation mailing address has been moved in the past and some of the addresses here are outdated. Remove them from file headers since the COPYING file in the kernel sources includes it. Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> 
Free Software Foundation mailing address has been moved in the past and some
of the addresses here are outdated. Remove them from file headers since the
COPYING file in the kernel sources includes it.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>