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| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2017-01-02 11:07:37 +0100 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2017-01-03 04:40:15 +0100 |
| commit | 836c3ce2566fb8c1754f8d7c9534cad9bc8a6879 (patch) | |
| tree | 39bfba211de861967ec4aac060cfda19c016335f /drivers/base | |
| parent | dmaengine: ti-dma-crossbar: Add some 'of_node_put()' in error path. (diff) | |
| download | linux-836c3ce2566fb8c1754f8d7c9534cad9bc8a6879.tar.xz linux-836c3ce2566fb8c1754f8d7c9534cad9bc8a6879.zip | |
dmaengine: omap-dma: Fix dynamic lch_map allocation
The original patch did not done what it was supposed to be doing and even
worst it broke legacy boot (OMAP1).
The lch_map size should be the number of available logical channels in sDMA
and the od->dma_requests should store the number of available DMA request
lines usable in sDMA.
In legacy mode we do not have a way to get the DMA request count, in that
case we use OMAP_SDMA_REQUESTS (127), despite the fact that OMAP1510 have
only 31 DMA request line.
Fixes: 2d1a9a946fae ("dmaengine: omap-dma: Dynamically allocate memory for lch_map")
Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: stable@vger.kernel.org # v4.9
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/base')
0 files changed, 0 insertions, 0 deletions