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staging: comedi: mite: rename mite_ring member 'descriptors_dma_addr'

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Rename this member of struct mite_ring to 'dma_addr' to help shorten the
long lines.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2016-05-02 10:11:37 -07:00 committed by Greg Kroah-Hartman
parent 19d9212ef9
commit a8b559275e
2 changed files with 9 additions and 9 deletions
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16
drivers/staging/comedi/drivers/mite.c
View File

@ -369,7 +369,7 @@ struct mite_ring *mite_alloc_ring(struct mite *mite)
}
ring->n_links = 0;
ring->descriptors = NULL;
ring->descriptors_dma_addr = 0;
ring->dma_addr = 0;
return ring;
};
EXPORT_SYMBOL_GPL(mite_alloc_ring);
@ -382,7 +382,7 @@ void mite_free_ring(struct mite_ring *ring)
ring->n_links *
sizeof(struct mite_dma_desc),
ring->descriptors,
ring->descriptors_dma_addr);
ring->dma_addr);
}
put_device(ring->hw_dev);
kfree(ring);
@ -478,10 +478,10 @@ int mite_buf_change(struct mite_ring *ring,
ring->n_links *
sizeof(struct mite_dma_desc),
ring->descriptors,
ring->descriptors_dma_addr);
ring->dma_addr);
}
ring->descriptors = NULL;
ring->descriptors_dma_addr = 0;
ring->dma_addr = 0;
ring->n_links = 0;
if (async->prealloc_bufsz == 0)
@ -492,7 +492,7 @@ int mite_buf_change(struct mite_ring *ring,
ring->descriptors =
dma_alloc_coherent(ring->hw_dev,
n_links * sizeof(struct mite_dma_desc),
&ring->descriptors_dma_addr, GFP_KERNEL);
&ring->dma_addr, GFP_KERNEL);
if (!ring->descriptors) {
dev_err(s->device->class_dev,
"mite: ring buffer allocation failed\n");
@ -535,7 +535,7 @@ int mite_init_ring_descriptors(struct mite_ring *ring,
ring->descriptors[i].addr =
cpu_to_le32(async->buf_map->page_list[i].dma_addr);
ring->descriptors[i].next =
cpu_to_le32(ring->descriptors_dma_addr +
cpu_to_le32(ring->dma_addr +
(i + 1) * sizeof(struct mite_dma_desc));
}
@ -550,7 +550,7 @@ int mite_init_ring_descriptors(struct mite_ring *ring,
}
/* Assign the last link->next to point back to the head of the list. */
ring->descriptors[i - 1].next = cpu_to_le32(ring->descriptors_dma_addr);
ring->descriptors[i - 1].next = cpu_to_le32(ring->dma_addr);
/*
* barrier is meant to insure that all the writes to the dma descriptors
@ -641,7 +641,7 @@ void mite_prep_dma(struct mite_channel *mite_chan,
writel(lkcr, mite->mite_io_addr + MITE_LKCR(mite_chan->channel));
/* starting address for link chaining */
writel(mite_chan->ring->descriptors_dma_addr,
writel(mite_chan->ring->dma_addr,
mite->mite_io_addr + MITE_LKAR(mite_chan->channel));
}
EXPORT_SYMBOL_GPL(mite_prep_dma);

2
drivers/staging/comedi/drivers/mite.h
View File

@ -39,7 +39,7 @@ struct mite_ring {
struct device *hw_dev;
unsigned int n_links;
struct mite_dma_desc *descriptors;
dma_addr_t descriptors_dma_addr;
dma_addr_t dma_addr;
};
struct mite_channel {