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fsldma: minor codingstyle and consistency fixes 

This fixes some minor violations of the coding style. It also changes
the style of the device_prep_dma_*() function definitions so they are
identical.

Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Ira Snyder 2011-03-03 07:54:57 +00:00 committed by Dan Williams
parent 0ab09c3681
commit 31f4306c83
2 changed files with 15 additions and 18 deletions
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23
drivers/dma/fsldma.c
View File

@ -118,8 +118,7 @@ static void set_desc_next(struct fsldma_chan *chan,
hw->next_ln_addr = CPU_TO_DMA(chan, snoop_bits | next, 64);
}
static void set_ld_eol(struct fsldma_chan *chan,
struct fsl_desc_sw *desc)
static void set_ld_eol(struct fsldma_chan *chan, struct fsl_desc_sw *desc)
{
u64 snoop_bits;
@ -338,8 +337,7 @@ static void fsl_chan_toggle_ext_start(struct fsldma_chan *chan, int enable)
chan->feature &= ~FSL_DMA_CHAN_START_EXT;
}
static void append_ld_queue(struct fsldma_chan *chan,
struct fsl_desc_sw *desc)
static void append_ld_queue(struct fsldma_chan *chan, struct fsl_desc_sw *desc)
{
struct fsl_desc_sw *tail = to_fsl_desc(chan->ld_pending.prev);
@ -380,8 +378,8 @@ static dma_cookie_t fsl_dma_tx_submit(struct dma_async_tx_descriptor *tx)
cookie = chan->common.cookie;
list_for_each_entry(child, &desc->tx_list, node) {
cookie++;
if (cookie < 0)
cookie = 1;
if (cookie < DMA_MIN_COOKIE)
cookie = DMA_MIN_COOKIE;
child->async_tx.cookie = cookie;
}
@ -402,8 +400,7 @@ static dma_cookie_t fsl_dma_tx_submit(struct dma_async_tx_descriptor *tx)
*
* Return - The descriptor allocated. NULL for failed.
*/
static struct fsl_desc_sw *fsl_dma_alloc_descriptor(
struct fsldma_chan *chan)
static struct fsl_desc_sw *fsl_dma_alloc_descriptor(struct fsldma_chan *chan)
{
struct fsl_desc_sw *desc;
dma_addr_t pdesc;
@ -427,7 +424,6 @@ static struct fsl_desc_sw *fsl_dma_alloc_descriptor(
return desc;
}
/**
* fsl_dma_alloc_chan_resources - Allocate resources for DMA channel.
* @chan : Freescale DMA channel
@ -537,14 +533,15 @@ fsl_dma_prep_interrupt(struct dma_chan *dchan, unsigned long flags)
/* Insert the link descriptor to the LD ring */
list_add_tail(&new->node, &new->tx_list);
/* Set End-of-link to the last link descriptor of new list*/
/* Set End-of-link to the last link descriptor of new list */
set_ld_eol(chan, new);
return &new->async_tx;
}
static struct dma_async_tx_descriptor *fsl_dma_prep_memcpy(
struct dma_chan *dchan, dma_addr_t dma_dst, dma_addr_t dma_src,
static struct dma_async_tx_descriptor *
fsl_dma_prep_memcpy(struct dma_chan *dchan,
dma_addr_t dma_dst, dma_addr_t dma_src,
size_t len, unsigned long flags)
{
struct fsldma_chan *chan;
@ -594,7 +591,7 @@ static struct dma_async_tx_descriptor *fsl_dma_prep_memcpy(
new->async_tx.flags = flags; /* client is in control of this ack */
new->async_tx.cookie = -EBUSY;
/* Set End-of-link to the last link descriptor of new list*/
/* Set End-of-link to the last link descriptor of new list */
set_ld_eol(chan, new);
return &first->async_tx;