linux-toradex.git/drivers/dma/mmp_pdma.c, branch v5.6-rc5

dmaengine: mmp_pdma: add missed of_dma_controller_free

2019-11-22T05:21:30+00:00

The driver calls of_dma_controller_register in probe but does not free
it in remove.
Add the call to fix it.

Signed-off-by: Chuhong Yuan 
Link: https://lore.kernel.org/r/20191115083153.12334-1-hslester96@gmail.com
Signed-off-by: Vinod Koul

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55+00:00

Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Enrico Weigelt 
Reviewed-by: Kate Stewart 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman

dmaengine: mmp_pdma: remove dma_slave_config direction usage

2018-11-05T05:02:46+00:00

dma_slave_config direction was marked as deprecated quite some
time back, remove the usage from this driver so that the field
can be removed

Signed-off-by: Vinod Koul

dmaengine: mmp_pdma: convert callback to helper function

2016-08-08T02:41:39+00:00

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 
Reviewed-by: Lars-Peter Clausen 
Signed-off-by: Vinod Koul

dmaengine: mmp_pdma: explicitly freeup irq

2016-07-16T14:49:03+00:00

dmaengine device should explicitly call devm_free_irq() when using
devm_request_irq().

The irq is still ON when devices remove is executed and irq should be
quiesced before remove is completed.

Signed-off-by: Vinod Koul 
Acked-by: Zhangfei Gao

dmaengine: mmp_pdma: Use dma_pool_zalloc

2016-05-03T06:53:11+00:00

Dma_pool_zalloc combines dma_pool_alloc and memset 0.  The semantic patch
that makes this transformation is as follows: (http://coccinelle.lip6.fr/)

// 
@@
expression d,e;
statement S;
@@

        d =
-            dma_pool_alloc
+            dma_pool_zalloc
             (...);
        if (!d) S
-       memset(d, 0, sizeof(*d));
// 

Signed-off-by: Julia Lawall 
Signed-off-by: Vinod Koul

dmaengine: Add an enum for the dmaengine alignment constraints

2015-08-05T05:23:52+00:00

Most drivers need to set constraints on the buffer alignment for async tx
operations. However, even though it is documented, some drivers either use
a defined constant that is not matching what the alignment variable expects
(like DMA_BUSWIDTH_* constants) or fill the alignment in bytes instead of
power of two.

Add a new enum for these alignments that matches what the framework
expects, and convert the drivers to it.

Signed-off-by: Maxime Ripard 
Signed-off-by: Vinod Koul

Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma

2015-04-24T16:49:37+00:00

Pull slave-dmaengine updates from Vinod Koul:

 - new drivers for:
        - Ingenic JZ4780 controller
        - APM X-Gene controller
        - Freescale RaidEngine device
        - Renesas USB Controller

  - remove device_alloc_chan_resources dummy handlers

  - sh driver cleanups for peri peri and related emmc and asoc patches
    as well

  - fixes and enhancements spread over the drivers

* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (59 commits)
  dmaengine: dw: don't prompt for DW_DMAC_CORE
  dmaengine: shdmac: avoid unused variable warnings
  dmaengine: fix platform_no_drv_owner.cocci warnings
  dmaengine: pch_dma: fix memory leak on failure path in pch_dma_probe()
  dmaengine: at_xdmac: unlock spin lock before return
  dmaengine: xgene: devm_ioremap() returns NULL on error
  dmaengine: xgene: buffer overflow in xgene_dma_init_channels()
  dmaengine: usb-dmac: Fix dereferencing freed memory 'desc'
  dmaengine: sa11x0: report slave capabilities to upper layers
  dmaengine: vdma: Fix compilation warnings
  dmaengine: fsl_raid: statify fsl_re_chan_probe
  dmaengine: Driver support for FSL RaidEngine device.
  dmaengine: xgene_dma_init_ring_mngr() can be static
  Documentation: dma: Add documentation for the APM X-Gene SoC DMA device DTS binding
  arm64: dts: Add APM X-Gene SoC DMA device and DMA clock DTS nodes
  dmaengine: Add support for APM X-Gene SoC DMA engine driver
  dmaengine: usb-dmac: Add Renesas USB DMA Controller (USB-DMAC) driver
  dmaengine: renesas,usb-dmac: Add device tree bindings documentation
  dmaengine: edma: fixed wrongly initialized data parameter to the edma callback
  dmaengine: ste_dma40: fix implicit conversion
  ...

dmaengine: constify of_device_id array

2015-03-18T16:43:14+00:00

of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)

Signed-off-by: Fabian Frederick 
Signed-off-by: Vinod Koul

dmaengine: mmp_pdma: fix warning about slave caps

2015-03-05T16:45:35+00:00

Fix the dmaengine complaint about missing slave caps :
 - declare the available bus widths
 - declare the available transfer types
 - declare the residue calculation type

Signed-off-by: Robert Jarzmik 
Signed-off-by: Vinod Koul