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dmaengine: hidma: In hidma_prep_dma_memset treat value as a single byte

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The value parameter is a single byte, so duplicate it to the 8 byte
range that is used as the pattern.

Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Cc: Sinan Kaya <okaya@kernel.org>
Link: https://lore.kernel.org/r/20220301182551.883474-5-benjamin.walker@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Ben Walker 2022-03-01 11:25:51 -07:00 committed by Vinod Koul
parent 3e0c06964b
commit 643a4a85b0
1 changed files with 12 additions and 1 deletions
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13
drivers/dma/qcom/hidma.c
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@ -431,6 +431,7 @@ hidma_prep_dma_memset(struct dma_chan *dmach, dma_addr_t dest, int value,
struct hidma_desc *mdesc = NULL;
struct hidma_dev *mdma = mchan->dmadev;
unsigned long irqflags;
u64 byte_pattern, fill_pattern;
/* Get free descriptor */
spin_lock_irqsave(&mchan->lock, irqflags);
@ -443,9 +444,19 @@ hidma_prep_dma_memset(struct dma_chan *dmach, dma_addr_t dest, int value,
if (!mdesc)
return NULL;
byte_pattern = (char)value;
fill_pattern = (byte_pattern << 56) |
(byte_pattern << 48) |
(byte_pattern << 40) |
(byte_pattern << 32) |
(byte_pattern << 24) |
(byte_pattern << 16) |
(byte_pattern << 8) |
byte_pattern;
mdesc->desc.flags = flags;
hidma_ll_set_transfer_params(mdma->lldev, mdesc->tre_ch,
value, dest, len, flags,
fill_pattern, dest, len, flags,
HIDMA_TRE_MEMSET);
/* Place descriptor in prepared list */