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dmaengine: remove DMA_SG as it is dead code in kernel

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There are no in kernel consumers for DMA_SG op. Removing operation,
dead code, and test code in dmatest.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Gary Hook <gary.hook@amd.com>
Cc: Ludovic Desroches <ludovic.desroches@microchip.com>
Cc: Kedareswara rao Appana <appana.durga.rao@xilinx.com>
Cc: Li Yang <leoyang.li@nxp.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Dave Jiang
2017-08-21 10:23:13 -07:00
committed by Vinod Koul
parent 61b5f54d8c
commit c678fa6634
12 changed files with 5 additions and 786 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/dma/ste_dma40.c
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@@ -2484,19 +2484,6 @@ static struct dma_async_tx_descriptor *d40_prep_memcpy(struct dma_chan *chan,
DMA_MEM_TO_MEM, dma_flags);
}
static struct dma_async_tx_descriptor *
d40_prep_memcpy_sg(struct dma_chan *chan,
struct scatterlist *dst_sg, unsigned int dst_nents,
struct scatterlist *src_sg, unsigned int src_nents,
unsigned long dma_flags)
{
if (dst_nents != src_nents)
return NULL;
return d40_prep_sg(chan, src_sg, dst_sg, src_nents,
DMA_MEM_TO_MEM, dma_flags);
}
static struct dma_async_tx_descriptor *
d40_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
unsigned int sg_len, enum dma_transfer_direction direction,
@@ -2821,9 +2808,6 @@ static void d40_ops_init(struct d40_base *base, struct dma_device *dev)
dev->copy_align = DMAENGINE_ALIGN_4_BYTES;
}
if (dma_has_cap(DMA_SG, dev->cap_mask))
dev->device_prep_dma_sg = d40_prep_memcpy_sg;
if (dma_has_cap(DMA_CYCLIC, dev->cap_mask))
dev->device_prep_dma_cyclic = dma40_prep_dma_cyclic;
@@ -2865,7 +2849,6 @@ static int __init d40_dmaengine_init(struct d40_base *base,
dma_cap_zero(base->dma_memcpy.cap_mask);
dma_cap_set(DMA_MEMCPY, base->dma_memcpy.cap_mask);
dma_cap_set(DMA_SG, base->dma_memcpy.cap_mask);
d40_ops_init(base, &base->dma_memcpy);
@@ -2883,7 +2866,6 @@ static int __init d40_dmaengine_init(struct d40_base *base,
dma_cap_zero(base->dma_both.cap_mask);
dma_cap_set(DMA_SLAVE, base->dma_both.cap_mask);
dma_cap_set(DMA_MEMCPY, base->dma_both.cap_mask);
dma_cap_set(DMA_SG, base->dma_both.cap_mask);
dma_cap_set(DMA_CYCLIC, base->dma_slave.cap_mask);
d40_ops_init(base, &base->dma_both);