[PATCH 3/8] dma: mmp_tdma: use gen_pool_dma_alloc() to allocate descriptor

From: Nicolin Chen
Date: Fri Nov 01 2013 - 07:38:44 EST


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

Signed-off-by: Nicolin Chen <b42378@xxxxxxxxxxxxx>
---
drivers/dma/mmp_tdma.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index 2b4026d..3ddacc1 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -378,12 +378,7 @@ 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;
}
--
1.8.4


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