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>

diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index 799ca517c121d97711c2a401ff93363156f720af..41c91f3c7f140802e71b1d354678fc03f14add8b 100644 (file)
--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c
@@ -339,18 +339,6 @@ static int omap_aes_dma_init(struct omap_aes_dev *dd)
                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;
 
 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));
 
        /* 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,
                                     len32, 1, OMAP_DMA_SYNC_PACKET, dd->dma_in,
                                        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);
 
        /* 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,
                                     len32, 1, OMAP_DMA_SYNC_PACKET,
                                        dd->dma_out, OMAP_DMA_SRC_SYNC);