ravb: Provide dev parameter to DMA API

This patch is in preparation for using this driver on arm64 where the
implementation of __dma_alloc_coherent fails if a device parameter is not
provided.

Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Masaru Nagai <masaru.nagai.vx@renesas.com>
[horms: squashed into a single patch]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 450899e..4ca093d 100644 (file)
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -201,7 +201,7 @@ static void ravb_ring_free(struct net_device *ndev, int q)
        if (priv->rx_ring[q]) {
                ring_size = sizeof(struct ravb_ex_rx_desc) *
                            (priv->num_rx_ring[q] + 1);
-               dma_free_coherent(NULL, ring_size, priv->rx_ring[q],
+               dma_free_coherent(ndev->dev.parent, ring_size, priv->rx_ring[q],
                                  priv->rx_desc_dma[q]);
                priv->rx_ring[q] = NULL;
        }
@@ -209,7 +209,7 @@ static void ravb_ring_free(struct net_device *ndev, int q)
        if (priv->tx_ring[q]) {
                ring_size = sizeof(struct ravb_tx_desc) *
                            (priv->num_tx_ring[q] * NUM_TX_DESC + 1);
-               dma_free_coherent(NULL, ring_size, priv->tx_ring[q],
+               dma_free_coherent(ndev->dev.parent, ring_size, priv->tx_ring[q],
                                  priv->tx_desc_dma[q]);
                priv->tx_ring[q] = NULL;
        }
@@ -240,13 +240,13 @@ static void ravb_ring_format(struct net_device *ndev, int q)
                rx_desc = &priv->rx_ring[q][i];
                /* The size of the buffer should be on 16-byte boundary. */
                rx_desc->ds_cc = cpu_to_le16(ALIGN(PKT_BUF_SZ, 16));
-               dma_addr = dma_map_single(&ndev->dev, priv->rx_skb[q][i]->data,
+               dma_addr = dma_map_single(ndev->dev.parent, priv->rx_skb[q][i]->data,
                                          ALIGN(PKT_BUF_SZ, 16),
                                          DMA_FROM_DEVICE);
                /* We just set the data size to 0 for a failed mapping which
                 * should prevent DMA from happening...
                 */
-               if (dma_mapping_error(&ndev->dev, dma_addr))
+               if (dma_mapping_error(ndev->dev.parent, dma_addr))
                        rx_desc->ds_cc = cpu_to_le16(0);
                rx_desc->dptr = cpu_to_le32(dma_addr);
                rx_desc->die_dt = DT_FEMPTY;
@@ -309,7 +309,7 @@ static int ravb_ring_init(struct net_device *ndev, int q)
 
        /* Allocate all RX descriptors. */
        ring_size = sizeof(struct ravb_ex_rx_desc) * (priv->num_rx_ring[q] + 1);
-       priv->rx_ring[q] = dma_alloc_coherent(NULL, ring_size,
+       priv->rx_ring[q] = dma_alloc_coherent(ndev->dev.parent, ring_size,
                                              &priv->rx_desc_dma[q],
                                              GFP_KERNEL);
        if (!priv->rx_ring[q])
@@ -320,7 +320,7 @@ static int ravb_ring_init(struct net_device *ndev, int q)
        /* Allocate all TX descriptors. */
        ring_size = sizeof(struct ravb_tx_desc) *
                    (priv->num_tx_ring[q] * NUM_TX_DESC + 1);
-       priv->tx_ring[q] = dma_alloc_coherent(NULL, ring_size,
+       priv->tx_ring[q] = dma_alloc_coherent(ndev->dev.parent, ring_size,
                                              &priv->tx_desc_dma[q],
                                              GFP_KERNEL);
        if (!priv->tx_ring[q])
@@ -443,7 +443,7 @@ static int ravb_tx_free(struct net_device *ndev, int q)
                size = le16_to_cpu(desc->ds_tagl) & TX_DS;
                /* Free the original skb. */
                if (priv->tx_skb[q][entry / NUM_TX_DESC]) {
-                       dma_unmap_single(&ndev->dev, le32_to_cpu(desc->dptr),
+                       dma_unmap_single(ndev->dev.parent, le32_to_cpu(desc->dptr),
                                         size, DMA_TO_DEVICE);
                        /* Last packet descriptor? */
                        if (entry % NUM_TX_DESC == NUM_TX_DESC - 1) {
@@ -546,7 +546,7 @@ static bool ravb_rx(struct net_device *ndev, int *quota, int q)
 
                        skb = priv->rx_skb[q][entry];
                        priv->rx_skb[q][entry] = NULL;
-                       dma_unmap_single(&ndev->dev, le32_to_cpu(desc->dptr),
+                       dma_unmap_single(ndev->dev.parent, le32_to_cpu(desc->dptr),
                                         ALIGN(PKT_BUF_SZ, 16),
                                         DMA_FROM_DEVICE);
                        get_ts &= (q == RAVB_NC) ?
@@ -586,14 +586,14 @@ static bool ravb_rx(struct net_device *ndev, int *quota, int q)
                        if (!skb)
                                break;  /* Better luck next round. */
                        ravb_set_buffer_align(skb);
-                       dma_addr = dma_map_single(&ndev->dev, skb->data,
+                       dma_addr = dma_map_single(ndev->dev.parent, skb->data,
                                                  le16_to_cpu(desc->ds_cc),
                                                  DMA_FROM_DEVICE);
                        skb_checksum_none_assert(skb);
                        /* We just set the data size to 0 for a failed mapping
                         * which should prevent DMA  from happening...
                         */
-                       if (dma_mapping_error(&ndev->dev, dma_addr))
+                       if (dma_mapping_error(ndev->dev.parent, dma_addr))
                                desc->ds_cc = cpu_to_le16(0);
                        desc->dptr = cpu_to_le32(dma_addr);
                        priv->rx_skb[q][entry] = skb;
@@ -1300,8 +1300,8 @@ static netdev_tx_t ravb_start_xmit(struct sk_buff *skb, struct net_device *ndev)
                 entry / NUM_TX_DESC * DPTR_ALIGN;
        len = PTR_ALIGN(skb->data, DPTR_ALIGN) - skb->data;
        memcpy(buffer, skb->data, len);
-       dma_addr = dma_map_single(&ndev->dev, buffer, len, DMA_TO_DEVICE);
-       if (dma_mapping_error(&ndev->dev, dma_addr))
+       dma_addr = dma_map_single(ndev->dev.parent, buffer, len, DMA_TO_DEVICE);
+       if (dma_mapping_error(ndev->dev.parent, dma_addr))
                goto drop;
 
        desc = &priv->tx_ring[q][entry];
@@ -1310,8 +1310,8 @@ static netdev_tx_t ravb_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 
        buffer = skb->data + len;
        len = skb->len - len;
-       dma_addr = dma_map_single(&ndev->dev, buffer, len, DMA_TO_DEVICE);
-       if (dma_mapping_error(&ndev->dev, dma_addr))
+       dma_addr = dma_map_single(ndev->dev.parent, buffer, len, DMA_TO_DEVICE);
+       if (dma_mapping_error(ndev->dev.parent, dma_addr))
                goto unmap;
 
        desc++;
@@ -1323,7 +1323,7 @@ static netdev_tx_t ravb_start_xmit(struct sk_buff *skb, struct net_device *ndev)
                ts_skb = kmalloc(sizeof(*ts_skb), GFP_ATOMIC);
                if (!ts_skb) {
                        desc--;
-                       dma_unmap_single(&ndev->dev, dma_addr, len,
+                       dma_unmap_single(ndev->dev.parent, dma_addr, len,
                                         DMA_TO_DEVICE);
                        goto unmap;
                }
@@ -1358,7 +1358,7 @@ exit:
        return NETDEV_TX_OK;
 
 unmap:
-       dma_unmap_single(&ndev->dev, le32_to_cpu(desc->dptr),
+       dma_unmap_single(ndev->dev.parent, le32_to_cpu(desc->dptr),
                         le16_to_cpu(desc->ds_tagl), DMA_TO_DEVICE);
 drop:
        dev_kfree_skb_any(skb);
@@ -1708,7 +1708,7 @@ static int ravb_probe(struct platform_device *pdev)
 
        /* Allocate descriptor base address table */
        priv->desc_bat_size = sizeof(struct ravb_desc) * DBAT_ENTRY_NUM;
-       priv->desc_bat = dma_alloc_coherent(NULL, priv->desc_bat_size,
+       priv->desc_bat = dma_alloc_coherent(ndev->dev.parent, priv->desc_bat_size,
                                            &priv->desc_bat_dma, GFP_KERNEL);
        if (!priv->desc_bat) {
                dev_err(&ndev->dev,
@@ -1763,7 +1763,7 @@ out_napi_del:
        netif_napi_del(&priv->napi[RAVB_BE]);
        ravb_mdio_release(priv);
 out_dma_free:
-       dma_free_coherent(NULL, priv->desc_bat_size, priv->desc_bat,
+       dma_free_coherent(ndev->dev.parent, priv->desc_bat_size, priv->desc_bat,
                          priv->desc_bat_dma);
 out_release:
        if (ndev)
@@ -1779,7 +1779,7 @@ static int ravb_remove(struct platform_device *pdev)
        struct net_device *ndev = platform_get_drvdata(pdev);
        struct ravb_private *priv = netdev_priv(ndev);
 
-       dma_free_coherent(NULL, priv->desc_bat_size, priv->desc_bat,
+       dma_free_coherent(ndev->dev.parent, priv->desc_bat_size, priv->desc_bat,
                          priv->desc_bat_dma);
        /* Set reset mode */
        ravb_write(ndev, CCC_OPC_RESET, CCC);