b43legacy: replace the ssb_dma API with the generic DMA API

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stefano Brivio <stefano.brivio@polimi.it>
Cc: John W. Linville <linville@tuxdriver.com>
Acked-by: Michael Buesch <mb@bu3sch.de>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/b43legacy/dma.c b/drivers/net/wireless/b43legacy/dma.c
index e91520d..e03e01d 100644 (file)
--- a/drivers/net/wireless/b43legacy/dma.c
+++ b/drivers/net/wireless/b43legacy/dma.c
@@ -394,11 +394,11 @@ dma_addr_t map_descbuffer(struct b43legacy_dmaring *ring,
        dma_addr_t dmaaddr;
 
        if (tx)
-               dmaaddr = ssb_dma_map_single(ring->dev->dev,
+               dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
                                             buf, len,
                                             DMA_TO_DEVICE);
        else
-               dmaaddr = ssb_dma_map_single(ring->dev->dev,
+               dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
                                             buf, len,
                                             DMA_FROM_DEVICE);
 
@@ -412,11 +412,11 @@ void unmap_descbuffer(struct b43legacy_dmaring *ring,
                      int tx)
 {
        if (tx)
-               ssb_dma_unmap_single(ring->dev->dev,
+               dma_unmap_single(ring->dev->dev->dma_dev,
                                     addr, len,
                                     DMA_TO_DEVICE);
        else
-               ssb_dma_unmap_single(ring->dev->dev,
+               dma_unmap_single(ring->dev->dev->dma_dev,
                                     addr, len,
                                     DMA_FROM_DEVICE);
 }
@@ -428,8 +428,8 @@ void sync_descbuffer_for_cpu(struct b43legacy_dmaring *ring,
 {
        B43legacy_WARN_ON(ring->tx);
 
-       ssb_dma_sync_single_for_cpu(ring->dev->dev,
-                                   addr, len, DMA_FROM_DEVICE);
+       dma_sync_single_for_cpu(ring->dev->dev->dma_dev,
+                               addr, len, DMA_FROM_DEVICE);
 }
 
 static inline
@@ -439,8 +439,8 @@ void sync_descbuffer_for_device(struct b43legacy_dmaring *ring,
 {
        B43legacy_WARN_ON(ring->tx);
 
-       ssb_dma_sync_single_for_device(ring->dev->dev,
-                                      addr, len, DMA_FROM_DEVICE);
+       dma_sync_single_for_device(ring->dev->dev->dma_dev,
+                                  addr, len, DMA_FROM_DEVICE);
 }
 
 static inline
@@ -460,10 +460,10 @@ void free_descriptor_buffer(struct b43legacy_dmaring *ring,
 static int alloc_ringmemory(struct b43legacy_dmaring *ring)
 {
        /* GFP flags must match the flags in free_ringmemory()! */
-       ring->descbase = ssb_dma_alloc_consistent(ring->dev->dev,
-                                                 B43legacy_DMA_RINGMEMSIZE,
-                                                 &(ring->dmabase),
-                                                 GFP_KERNEL);
+       ring->descbase = dma_alloc_coherent(ring->dev->dev->dma_dev,
+                                           B43legacy_DMA_RINGMEMSIZE,
+                                           &(ring->dmabase),
+                                           GFP_KERNEL);
        if (!ring->descbase) {
                b43legacyerr(ring->dev->wl, "DMA ringmemory allocation"
                             " failed\n");
@@ -476,8 +476,8 @@ static int alloc_ringmemory(struct b43legacy_dmaring *ring)
 
 static void free_ringmemory(struct b43legacy_dmaring *ring)
 {
-       ssb_dma_free_consistent(ring->dev->dev, B43legacy_DMA_RINGMEMSIZE,
-                               ring->descbase, ring->dmabase, GFP_KERNEL);
+       dma_free_coherent(ring->dev->dev->dma_dev, B43legacy_DMA_RINGMEMSIZE,
+                         ring->descbase, ring->dmabase);
 }
 
 /* Reset the RX DMA channel */
@@ -589,7 +589,7 @@ static bool b43legacy_dma_mapping_error(struct b43legacy_dmaring *ring,
                                         size_t buffersize,
                                         bool dma_to_device)
 {
-       if (unlikely(ssb_dma_mapping_error(ring->dev->dev, addr)))
+       if (unlikely(dma_mapping_error(ring->dev->dev->dma_dev, addr)))
                return 1;
 
        switch (ring->type) {
@@ -906,7 +906,7 @@ struct b43legacy_dmaring *b43legacy_setup_dmaring(struct b43legacy_wldev *dev,
                        goto err_kfree_meta;
 
                /* test for ability to dma to txhdr_cache */
-               dma_test = ssb_dma_map_single(dev->dev, ring->txhdr_cache,
+               dma_test = dma_map_single(dev->dev->dma_dev, ring->txhdr_cache,
                                              sizeof(struct b43legacy_txhdr_fw3),
                                              DMA_TO_DEVICE);
 
@@ -920,7 +920,7 @@ struct b43legacy_dmaring *b43legacy_setup_dmaring(struct b43legacy_wldev *dev,
                        if (!ring->txhdr_cache)
                                goto err_kfree_meta;
 
-                       dma_test = ssb_dma_map_single(dev->dev,
+                       dma_test = dma_map_single(dev->dev->dma_dev,
                                        ring->txhdr_cache,
                                        sizeof(struct b43legacy_txhdr_fw3),
                                        DMA_TO_DEVICE);
@@ -930,9 +930,9 @@ struct b43legacy_dmaring *b43legacy_setup_dmaring(struct b43legacy_wldev *dev,
                                goto err_kfree_txhdr_cache;
                }
 
-               ssb_dma_unmap_single(dev->dev, dma_test,
-                                    sizeof(struct b43legacy_txhdr_fw3),
-                                    DMA_TO_DEVICE);
+               dma_unmap_single(dev->dev->dma_dev, dma_test,
+                                sizeof(struct b43legacy_txhdr_fw3),
+                                DMA_TO_DEVICE);
        }
 
        ring->nr_slots = nr_slots;
@@ -1040,9 +1040,12 @@ static int b43legacy_dma_set_mask(struct b43legacy_wldev *dev, u64 mask)
        /* Try to set the DMA mask. If it fails, try falling back to a
         * lower mask, as we can always also support a lower one. */
        while (1) {
-               err = ssb_dma_set_mask(dev->dev, mask);
-               if (!err)
-                       break;
+               err = dma_set_mask(dev->dev->dma_dev, mask);
+               if (!err) {
+                       err = dma_set_coherent_mask(dev->dev->dma_dev, mask);
+                       if (!err)
+                               break;
+               }
                if (mask == DMA_BIT_MASK(64)) {
                        mask = DMA_BIT_MASK(32);
                        fallback = 1;