mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-26 20:38:12 +00:00
Code Issues Releases Wiki Activity

dmaengine: lgm: Move DT parsing after initialization

Browse source 
commit 96b3bb18f6 upstream.

ldma_cfg_init() will parse DT to retrieve certain configs.
However, that is called before ldma_dma_init_vXX(), which
will make some initialization to channel configs. It will
thus incorrectly overwrite certain configs that are declared
in DT.

To fix that, we move DT parsing after initialization.
Function name is renamed to better represent what it does.

Fixes: 32d31c79a1 ("dmaengine: Add Intel LGM SoC DMA support.")
Signed-off-by: Peter Harliman Liem <pliem@maxlinear.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/afef6fc1ed20098b684e0d53737d69faf63c125f.1672887183.git.pliem@maxlinear.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Harliman Liem 2023-01-05 11:05:51 +08:00 committed by Greg Kroah-Hartman
parent 16b18ee00c
commit 16848cad1a
1 changed files with 5 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
drivers/dma/lgm/lgm-dma.c
View file

@ -914,7 +914,7 @@ static void ldma_dev_init(struct ldma_dev *d)
}
}
static int ldma_cfg_init(struct ldma_dev *d)
static int ldma_parse_dt(struct ldma_dev *d)
{
struct fwnode_handle *fwnode = dev_fwnode(d->dev);
struct ldma_port *p;
@ -1661,10 +1661,6 @@ static int intel_ldma_probe(struct platform_device *pdev)
p->ldev = d;
}
ret = ldma_cfg_init(d);
if (ret)
return ret;
dma_dev->dev = &pdev->dev;
ch_mask = (unsigned long)d->channels_mask;
@ -1675,6 +1671,10 @@ static int intel_ldma_probe(struct platform_device *pdev)
ldma_dma_init_v3X(j, d);
}
ret = ldma_parse_dt(d);
if (ret)
return ret;
dma_dev->device_alloc_chan_resources = ldma_alloc_chan_resources;
dma_dev->device_free_chan_resources = ldma_free_chan_resources;
dma_dev->device_terminate_all = ldma_terminate_all;