diff options
Diffstat (limited to 'drivers/dma/sh/shdma.c')
| -rw-r--r-- | drivers/dma/sh/shdma.c | 24 |
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) |