aboutsummaryrefslogtreecommitdiff
path: root/drivers/dma/fsl-edma-common.c
diff options
context:
space:
mode:
authorIngo Molnar <[email protected]>2020-02-24 11:36:09 +0100
committerIngo Molnar <[email protected]>2020-02-24 11:36:09 +0100
commit546121b65f47384e11ec1fa2e55449fc9f4846b2 (patch)
tree8f18470ec7c0c77b0f48eb1b2338e591b0b0aaff /drivers/dma/fsl-edma-common.c
parent000619680c3714020ce9db17eef6a4a7ce2dc28b (diff)
parentf8788d86ab28f61f7b46eb6be375f8a726783636 (diff)
Merge tag 'v5.6-rc3' into sched/core, to pick up fixes and dependent patches
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'drivers/dma/fsl-edma-common.c')
-rw-r--r--drivers/dma/fsl-edma-common.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c
index b1a7ca91701a..5697c3622699 100644
--- a/drivers/dma/fsl-edma-common.c
+++ b/drivers/dma/fsl-edma-common.c
@@ -109,10 +109,15 @@ void fsl_edma_chan_mux(struct fsl_edma_chan *fsl_chan,
u32 ch = fsl_chan->vchan.chan.chan_id;
void __iomem *muxaddr;
unsigned int chans_per_mux, ch_off;
+ int endian_diff[4] = {3, 1, -1, -3};
u32 dmamux_nr = fsl_chan->edma->drvdata->dmamuxs;
chans_per_mux = fsl_chan->edma->n_chans / dmamux_nr;
ch_off = fsl_chan->vchan.chan.chan_id % chans_per_mux;
+
+ if (fsl_chan->edma->drvdata->mux_swap)
+ ch_off += endian_diff[ch_off % 4];
+
muxaddr = fsl_chan->edma->muxbase[ch / chans_per_mux];
slot = EDMAMUX_CHCFG_SOURCE(slot);