dma: mv_xor: remove hw_id field from platform_data

There is no need for the platform_data to give this ID, it is simply
the channel number, so we can compute it inside the driver when
registering the channels.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

3 files changed, 3 insertions, 8 deletions

diff --git a/arch/arm/plat-orion/common.c b/arch/arm/plat-orion/common.c
index 31517cef8c4d..09d836060bf4 100644
--- a/arch/arm/plat-orion/common.c
+++ b/arch/arm/plat-orion/common.c
@@ -627,11 +627,9 @@ static struct resource orion_xor0_shared_resources[] = {
 
 static struct mv_xor_channel_data orion_xor0_channels_data[2] = {
         {
-                .hw_id          = 0,
                 .pool_size      = PAGE_SIZE,
         },
         {
-                .hw_id          = 1,
                 .pool_size      = PAGE_SIZE,
         },
 };
@@ -702,11 +700,9 @@ static struct resource orion_xor1_shared_resources[] = {
 
 static struct mv_xor_channel_data orion_xor1_channels_data[2] = {
         {
-                .hw_id          = 0,
                 .pool_size      = PAGE_SIZE,
         },
         {
-                .hw_id          = 1,
                 .pool_size      = PAGE_SIZE,
         },
 };
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index a6a5a28574c4..fc983bf38438 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -1088,7 +1088,7 @@ static int mv_xor_channel_remove(struct mv_xor_chan *mv_chan)
 static struct mv_xor_chan *
 mv_xor_channel_add(struct mv_xor_device *xordev,
                    struct platform_device *pdev,
-                   int hw_id, dma_cap_mask_t cap_mask,
+                   int idx, dma_cap_mask_t cap_mask,
                    size_t pool_size, int irq)
 {
         int ret = 0;
@@ -1101,7 +1101,7 @@ mv_xor_channel_add(struct mv_xor_device *xordev,
                 goto err_free_dma;
         }
 
-        mv_chan->idx = hw_id;
+        mv_chan->idx = idx;
 
         dma_dev = &mv_chan->dmadev;
 
@@ -1295,7 +1295,7 @@ static int mv_xor_probe(struct platform_device *pdev)
                         }
 
                         xordev->channels[i] =
-                                mv_xor_channel_add(xordev, pdev, cd->hw_id,
+                                mv_xor_channel_add(xordev, pdev, i,
                                                    cd->cap_mask,
                                                    cd->pool_size, irq);
                         if (IS_ERR(xordev->channels[i])) {
diff --git a/include/linux/platform_data/dma-mv_xor.h b/include/linux/platform_data/dma-mv_xor.h
index 367bb216c4a7..b18dc2496186 100644
--- a/include/linux/platform_data/dma-mv_xor.h
+++ b/include/linux/platform_data/dma-mv_xor.h
@@ -13,7 +13,6 @@
 #define MV_XOR_NAME     "mv_xor"
 
 struct mv_xor_channel_data {
-        int                             hw_id;
         dma_cap_mask_t                  cap_mask;
         size_t                          pool_size;
 };