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crypto: omap-aes - DMA initialization fixes for OMAP off mode

DMA parameters for constant data were initialized during driver probe().
It seems that those settings sometimes are lost when devices goes to off mode.
This patch makes DMA initialization just before use.
It solves off mode problems.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Dmitry Kasatkin 14 năm trước cách đây
mục cha
commit
3bd2e2216b
1 tập tin đã thay đổi với 12 bổ sung12 xóa
  1. 12 12
      drivers/crypto/omap-aes.c

+ 12 - 12
drivers/crypto/omap-aes.c

@@ -339,18 +339,6 @@ static int omap_aes_dma_init(struct omap_aes_dev *dd)
 		goto err_dma_out;
 		goto err_dma_out;
 	}
 	}
 
 
-	omap_set_dma_dest_params(dd->dma_lch_in, 0, OMAP_DMA_AMODE_CONSTANT,
-				 dd->phys_base + AES_REG_DATA, 0, 4);
-
-	omap_set_dma_dest_burst_mode(dd->dma_lch_in, OMAP_DMA_DATA_BURST_4);
-	omap_set_dma_src_burst_mode(dd->dma_lch_in, OMAP_DMA_DATA_BURST_4);
-
-	omap_set_dma_src_params(dd->dma_lch_out, 0, OMAP_DMA_AMODE_CONSTANT,
-				dd->phys_base + AES_REG_DATA, 0, 4);
-
-	omap_set_dma_src_burst_mode(dd->dma_lch_out, OMAP_DMA_DATA_BURST_4);
-	omap_set_dma_dest_burst_mode(dd->dma_lch_out, OMAP_DMA_DATA_BURST_4);
-
 	return 0;
 	return 0;
 
 
 err_dma_out:
 err_dma_out:
@@ -443,6 +431,12 @@ static int omap_aes_crypt_dma(struct crypto_tfm *tfm, dma_addr_t dma_addr_in,
 	len32 = DIV_ROUND_UP(length, sizeof(u32));
 	len32 = DIV_ROUND_UP(length, sizeof(u32));
 
 
 	/* IN */
 	/* IN */
+	omap_set_dma_dest_params(dd->dma_lch_in, 0, OMAP_DMA_AMODE_CONSTANT,
+				 dd->phys_base + AES_REG_DATA, 0, 4);
+
+	omap_set_dma_dest_burst_mode(dd->dma_lch_in, OMAP_DMA_DATA_BURST_4);
+	omap_set_dma_src_burst_mode(dd->dma_lch_in, OMAP_DMA_DATA_BURST_4);
+
 	omap_set_dma_transfer_params(dd->dma_lch_in, OMAP_DMA_DATA_TYPE_S32,
 	omap_set_dma_transfer_params(dd->dma_lch_in, OMAP_DMA_DATA_TYPE_S32,
 				     len32, 1, OMAP_DMA_SYNC_PACKET, dd->dma_in,
 				     len32, 1, OMAP_DMA_SYNC_PACKET, dd->dma_in,
 					OMAP_DMA_DST_SYNC);
 					OMAP_DMA_DST_SYNC);
@@ -451,6 +445,12 @@ static int omap_aes_crypt_dma(struct crypto_tfm *tfm, dma_addr_t dma_addr_in,
 				dma_addr_in, 0, 0);
 				dma_addr_in, 0, 0);
 
 
 	/* OUT */
 	/* OUT */
+	omap_set_dma_src_params(dd->dma_lch_out, 0, OMAP_DMA_AMODE_CONSTANT,
+				dd->phys_base + AES_REG_DATA, 0, 4);
+
+	omap_set_dma_src_burst_mode(dd->dma_lch_out, OMAP_DMA_DATA_BURST_4);
+	omap_set_dma_dest_burst_mode(dd->dma_lch_out, OMAP_DMA_DATA_BURST_4);
+
 	omap_set_dma_transfer_params(dd->dma_lch_out, OMAP_DMA_DATA_TYPE_S32,
 	omap_set_dma_transfer_params(dd->dma_lch_out, OMAP_DMA_DATA_TYPE_S32,
 				     len32, 1, OMAP_DMA_SYNC_PACKET,
 				     len32, 1, OMAP_DMA_SYNC_PACKET,
 					dd->dma_out, OMAP_DMA_SRC_SYNC);
 					dd->dma_out, OMAP_DMA_SRC_SYNC);