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Diffstat (limited to 'arch/sh/drivers/dma/dma-api.c')
-rw-r--r--arch/sh/drivers/dma/dma-api.c143
1 files changed, 0 insertions, 143 deletions
diff --git a/arch/sh/drivers/dma/dma-api.c b/arch/sh/drivers/dma/dma-api.c
index 89cd4a3b4c..87e5a89288 100644
--- a/arch/sh/drivers/dma/dma-api.c
+++ b/arch/sh/drivers/dma/dma-api.c
@@ -41,21 +41,6 @@ struct dma_info *get_dma_info(unsigned int chan)
}
EXPORT_SYMBOL(get_dma_info);
-struct dma_info *get_dma_info_by_name(const char *dmac_name)
-{
- struct dma_info *info;
-
- list_for_each_entry(info, &registered_dmac_list, list) {
- if (dmac_name && (strcmp(dmac_name, info->name) != 0))
- continue;
- else
- return info;
- }
-
- return NULL;
-}
-EXPORT_SYMBOL(get_dma_info_by_name);
-
static unsigned int get_nr_channels(void)
{
struct dma_info *info;
@@ -101,93 +86,6 @@ int get_dma_residue(unsigned int chan)
}
EXPORT_SYMBOL(get_dma_residue);
-static int search_cap(const char **haystack, const char *needle)
-{
- const char **p;
-
- for (p = haystack; *p; p++)
- if (strcmp(*p, needle) == 0)
- return 1;
-
- return 0;
-}
-
-/**
- * request_dma_bycap - Allocate a DMA channel based on its capabilities
- * @dmac: List of DMA controllers to search
- * @caps: List of capabilities
- *
- * Search all channels of all DMA controllers to find a channel which
- * matches the requested capabilities. The result is the channel
- * number if a match is found, or %-ENODEV if no match is found.
- *
- * Note that not all DMA controllers export capabilities, in which
- * case they can never be allocated using this API, and so
- * request_dma() must be used specifying the channel number.
- */
-int request_dma_bycap(const char **dmac, const char **caps, const char *dev_id)
-{
- unsigned int found = 0;
- struct dma_info *info;
- const char **p;
- int i;
-
- BUG_ON(!dmac || !caps);
-
- list_for_each_entry(info, &registered_dmac_list, list)
- if (strcmp(*dmac, info->name) == 0) {
- found = 1;
- break;
- }
-
- if (!found)
- return -ENODEV;
-
- for (i = 0; i < info->nr_channels; i++) {
- struct dma_channel *channel = &info->channels[i];
-
- if (unlikely(!channel->caps))
- continue;
-
- for (p = caps; *p; p++) {
- if (!search_cap(channel->caps, *p))
- break;
- if (request_dma(channel->chan, dev_id) == 0)
- return channel->chan;
- }
- }
-
- return -EINVAL;
-}
-EXPORT_SYMBOL(request_dma_bycap);
-
-int dmac_search_free_channel(const char *dev_id)
-{
- struct dma_channel *channel = { 0 };
- struct dma_info *info = get_dma_info(0);
- int i;
-
- for (i = 0; i < info->nr_channels; i++) {
- channel = &info->channels[i];
- if (unlikely(!channel))
- return -ENODEV;
-
- if (atomic_read(&channel->busy) == 0)
- break;
- }
-
- if (info->ops->request) {
- int result = info->ops->request(channel);
- if (result)
- return result;
-
- atomic_set(&channel->busy, 1);
- return channel->chan;
- }
-
- return -ENOSYS;
-}
-
int request_dma(unsigned int chan, const char *dev_id)
{
struct dma_channel *channel = { 0 };
@@ -240,35 +138,6 @@ void dma_wait_for_completion(unsigned int chan)
}
EXPORT_SYMBOL(dma_wait_for_completion);
-int register_chan_caps(const char *dmac, struct dma_chan_caps *caps)
-{
- struct dma_info *info;
- unsigned int found = 0;
- int i;
-
- list_for_each_entry(info, &registered_dmac_list, list)
- if (strcmp(dmac, info->name) == 0) {
- found = 1;
- break;
- }
-
- if (unlikely(!found))
- return -ENODEV;
-
- for (i = 0; i < info->nr_channels; i++, caps++) {
- struct dma_channel *channel;
-
- if ((info->first_channel_nr + i) != caps->ch_num)
- return -EINVAL;
-
- channel = &info->channels[i];
- channel->caps = caps->caplist;
- }
-
- return 0;
-}
-EXPORT_SYMBOL(register_chan_caps);
-
void dma_configure_channel(unsigned int chan, unsigned long flags)
{
struct dma_info *info = get_dma_info(chan);
@@ -294,18 +163,6 @@ int dma_xfer(unsigned int chan, unsigned long from,
}
EXPORT_SYMBOL(dma_xfer);
-int dma_extend(unsigned int chan, unsigned long op, void *param)
-{
- struct dma_info *info = get_dma_info(chan);
- struct dma_channel *channel = get_dma_channel(chan);
-
- if (info->ops->extend)
- return info->ops->extend(channel, op, param);
-
- return -ENOSYS;
-}
-EXPORT_SYMBOL(dma_extend);
-
static int dma_proc_show(struct seq_file *m, void *v)
{
struct dma_info *info = v;