diff options
| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2019-08-23 15:56:14 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-05 12:27:50 +0200 |
| commit | 77a4084872bb4c0456263cce83f48cb2b41044e6 (patch) | |
| tree | 6a6bb2f00a1c234a6be0645f8847836500a2016b /drivers/dma | |
| parent | b8c11e01be7f7fcbda697e8cf9aa1f4ec65816f6 (diff) | |
dmaengine: ti: edma: Do not reset reserved paRAM slots
[ Upstream commit c5dbe60664b3660f5ac5854e21273ea2e7ff698f ]
Skip resetting paRAM slots marked as reserved as they might be used by
other cores.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20190823125618.8133-2-peter.ujfalusi@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/edma.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index 85674a8d0436..e508c8c5f3fd 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -2218,9 +2218,6 @@ static int edma_probe(struct platform_device *pdev) ecc->default_queue = info->default_queue; - for (i = 0; i < ecc->num_slots; i++) - edma_write_slot(ecc, i, &dummy_paramset); - if (info->rsv) { /* Set the reserved slots in inuse list */ rsv_slots = info->rsv->rsv_slots; @@ -2233,6 +2230,12 @@ static int edma_probe(struct platform_device *pdev) } } + for (i = 0; i < ecc->num_slots; i++) { + /* Reset only unused - not reserved - paRAM slots */ + if (!test_bit(i, ecc->slot_inuse)) + edma_write_slot(ecc, i, &dummy_paramset); + } + /* Clear the xbar mapped channels in unused list */ xbar_chans = info->xbar_chans; if (xbar_chans) { |