linux.git/drivers/dma/hsu, branch v4.2 Linux kernel source tree dmaengine: hsu: Fix memory leak when stopping a running transfer 2015-06-02T13:03:08+00:00 Peter Ujfalusi peter.ujfalusi@ti.com 2015-05-26T10:11:28+00:00 429770823d961187c39df490d49683c467b10065 The vd->node is removed from the lists when the transfer started so the vchan_get_all_descriptors() will not find it. This results memory leak. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> [andy: fix the typo to prevent a compilation error] Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> 
The vd->node is removed from the lists when the transfer started so the
vchan_get_all_descriptors() will not find it. This results memory leak.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
[andy: fix the typo to prevent a compilation error]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
dmaengine: hsu: don't prompt for hsu_core part 2015-04-22T16:28:32+00:00 Vinod Koul vinod.koul@intel.com 2015-04-22T06:47:46+00:00 3cfe213756a5c208ab51816d51641bf49f2e67fd HSU_DMA is selected by the HSU_DMA_PCI driver, this should be user selected so remove the user prompt for this Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
HSU_DMA is selected by the HSU_DMA_PCI driver, this should be user selected
so remove the user prompt for this

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
dmaengine: hsu: move memory allocation to GFP_NOWAIT 2015-03-26T22:02:49+00:00 Andy Shevchenko andriy.shevchenko@linux.intel.com 2015-03-16T08:53:58+00:00 ad53b26cd140fbea92d79a449c8ddb8d1a6f5f26 The GFP_ATOMIC is too strict, and DMAEngine documentation make an advice to use GFP_NOWAIT. This patch does the conversion. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
The GFP_ATOMIC is too strict, and DMAEngine documentation make an advice to use
GFP_NOWAIT. This patch does the conversion.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dmaengine: hsu: remove redundant pieces of code 2015-03-26T22:02:48+00:00 Andy Shevchenko andriy.shevchenko@linux.intel.com 2015-03-16T08:53:57+00:00 4bb82458ec76edc6d2a91fd3b2d2daae44561443 There are few places where the implemented pieces of code are not needed, i.e.: - direction can't be wrong in hsu_dma_chan_start() - desc->active set to 0 by kzalloc - DMAEngine is NULL-aware when call ->device_alloc_chan_resources() Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
There are few places where the implemented pieces of code are not needed, i.e.:
- direction can't be wrong in hsu_dma_chan_start()
- desc->active set to 0 by kzalloc
- DMAEngine is NULL-aware when call ->device_alloc_chan_resources()

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dmaengine: hsu: add Intel Tangier PCI ID 2015-03-26T22:01:37+00:00 Andy Shevchenko andriy.shevchenko@linux.intel.com 2015-03-13T15:44:25+00:00 594eb4a4be013b27a4ed28ccf5a3431432723719 Intel Tangier is known to have the HSU DMA IP as PCI device 00:05.0. The patch adds the ID as found on Intel Edison board to the PCI device table. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Intel Tangier is known to have the HSU DMA IP as PCI device 00:05.0. The patch
adds the ID as found on Intel Edison board to the PCI device table.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dmaengine: append hsu DMA driver 2015-03-07T02:23:02+00:00 Andy Shevchenko andriy.shevchenko@linux.intel.com 2015-02-23T14:24:42+00:00 2b49e0c56741fca538176f66ed3c8d16ce4fccd8 The HSU DMA is developed to support High Speed UART controllers found in particular on Intel MID platforms such as Intel Medfield. The existing implementation is tighten to the drivers/tty/serial/mfd.c driver and has a lot of disadvantages. Besides that we would like to get rid of the old HS UART driver in regarding to extending the 8250 which supports generic DMAEngine API. That's why the current driver has been developed. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
The HSU DMA is developed to support High Speed UART controllers found in
particular on Intel MID platforms such as Intel Medfield.

The existing implementation is tighten to the drivers/tty/serial/mfd.c driver
and has a lot of disadvantages. Besides that we would like to get rid of the
old HS UART driver in regarding to extending the 8250 which supports generic
DMAEngine API. That's why the current driver has been developed.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>