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path: root/drivers/dma/sh/shdma.c
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Diffstat (limited to 'drivers/dma/sh/shdma.c')
-rw-r--r--drivers/dma/sh/shdma.c24
1 files changed, 10 insertions, 14 deletions
diff --git a/drivers/dma/sh/shdma.c b/drivers/dma/sh/shdma.c
index f06906f281ac..9f0a2e507ac3 100644
--- a/drivers/dma/sh/shdma.c
+++ b/drivers/dma/sh/shdma.c
@@ -291,10 +291,8 @@ static void sh_dmae_setup_xfer(struct shdma_chan *schan,
shdma_chan);
if (sslave) {
- struct sh_dmae_slave *slave = container_of(sslave,
- struct sh_dmae_slave, shdma_slave);
const struct sh_dmae_slave_config *cfg =
- slave->config;
+ sh_chan->config;
dmae_set_dmars(sh_chan, cfg->mid_rid);
dmae_set_chcr(sh_chan, cfg->chcr);
@@ -326,13 +324,11 @@ static int sh_dmae_set_slave(struct shdma_chan *schan,
{
struct sh_dmae_chan *sh_chan = container_of(schan, struct sh_dmae_chan,
shdma_chan);
- struct sh_dmae_slave *slave = container_of(sslave, struct sh_dmae_slave,
- shdma_slave);
const struct sh_dmae_slave_config *cfg = dmae_find_slave(sh_chan, sslave->slave_id);
if (!cfg)
return -ENODEV;
- slave->config = cfg;
+ sh_chan->config = cfg;
return 0;
}
@@ -579,13 +575,12 @@ static int sh_dmae_resume(struct device *dev)
for (i = 0; i < shdev->pdata->channel_num; i++) {
struct sh_dmae_chan *sh_chan = shdev->chan[i];
- struct sh_dmae_slave *param = sh_chan->shdma_chan.dma_chan.private;
if (!sh_chan->shdma_chan.desc_num)
continue;
- if (param) {
- const struct sh_dmae_slave_config *cfg = param->config;
+ if (sh_chan->shdma_chan.slave) {
+ const struct sh_dmae_slave_config *cfg = sh_chan->config;
dmae_set_dmars(sh_chan, cfg->mid_rid);
dmae_set_chcr(sh_chan, cfg->chcr);
} else {
@@ -609,14 +604,15 @@ const struct dev_pm_ops sh_dmae_pm = {
static dma_addr_t sh_dmae_slave_addr(struct shdma_chan *schan)
{
- struct sh_dmae_slave *param = schan->dma_chan.private;
+ struct sh_dmae_chan *sh_chan = container_of(schan,
+ struct sh_dmae_chan, shdma_chan);
/*
- * Implicit BUG_ON(!param)
- * if (param != NULL), this is a successfully requested slave channel,
- * therefore param->config != NULL too.
+ * Implicit BUG_ON(!sh_chan->config)
+ * This is an exclusive slave DMA operation, may only be called after a
+ * successful slave configuration.
*/
- return param->config->addr;
+ return sh_chan->config->addr;
}
static struct shdma_desc *sh_dmae_embedded_desc(void *buf, int i)
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