diff options
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/at_hdmac.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index 30ae36124b1d..5a50423b7378 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -942,6 +942,7 @@ atc_prep_dma_memset(struct dma_chan *chan, dma_addr_t dest, int value, struct at_desc *desc; void __iomem *vaddr; dma_addr_t paddr; + char fill_pattern; dev_vdbg(chan2dev(chan), "%s: d%pad v0x%x l0x%zx f0x%lx\n", __func__, &dest, value, len, flags); @@ -963,7 +964,14 @@ atc_prep_dma_memset(struct dma_chan *chan, dma_addr_t dest, int value, __func__); return NULL; } - *(u32*)vaddr = value; + + /* Only the first byte of value is to be used according to dmaengine */ + fill_pattern = (char)value; + + *(u32*)vaddr = (fill_pattern << 24) | + (fill_pattern << 16) | + (fill_pattern << 8) | + fill_pattern; desc = atc_create_memset_desc(chan, paddr, dest, len); if (!desc) { |