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drivers/dma/mmp_tdma.c: use gen_pool_dma_alloc() to allocate descriptor

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Since gen_pool_dma_alloc() is introduced, we implement it to simplify code.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Nicolin Chen 2013-11-12 15:09:55 -08:00 committed by Linus Torvalds
parent 66f119695b
commit a6dd30e2bc
1 changed files with 1 additions and 6 deletions
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7
drivers/dma/mmp_tdma.c
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@ -350,12 +350,7 @@ struct mmp_tdma_desc *mmp_tdma_alloc_descriptor(struct mmp_tdma_chan *tdmac)
if (!gpool)
return NULL;
tdmac->desc_arr = (void *)gen_pool_alloc(gpool, size);
if (!tdmac->desc_arr)
return NULL;
tdmac->desc_arr_phys = gen_pool_virt_to_phys(gpool,
(unsigned long)tdmac->desc_arr);
tdmac->desc_arr = gen_pool_dma_alloc(gpool, size, &tdmac->desc_arr_phys);
return tdmac->desc_arr;
}