diff options
Diffstat (limited to 'drivers/dma/shdma.c')
-rw-r--r-- | drivers/dma/shdma.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c index 323afef77802..a1727522343e 100644 --- a/drivers/dma/shdma.c +++ b/drivers/dma/shdma.c | |||
@@ -597,12 +597,17 @@ static struct dma_async_tx_descriptor *sh_dmae_prep_slave_sg( | |||
597 | direction, flags); | 597 | direction, flags); |
598 | } | 598 | } |
599 | 599 | ||
600 | static void sh_dmae_terminate_all(struct dma_chan *chan) | 600 | static int sh_dmae_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, |
601 | unsigned long arg) | ||
601 | { | 602 | { |
602 | struct sh_dmae_chan *sh_chan = to_sh_chan(chan); | 603 | struct sh_dmae_chan *sh_chan = to_sh_chan(chan); |
603 | 604 | ||
605 | /* Only supports DMA_TERMINATE_ALL */ | ||
606 | if (cmd != DMA_TERMINATE_ALL) | ||
607 | return -ENXIO; | ||
608 | |||
604 | if (!chan) | 609 | if (!chan) |
605 | return; | 610 | return -EINVAL; |
606 | 611 | ||
607 | dmae_halt(sh_chan); | 612 | dmae_halt(sh_chan); |
608 | 613 | ||
@@ -618,6 +623,8 @@ static void sh_dmae_terminate_all(struct dma_chan *chan) | |||
618 | spin_unlock_bh(&sh_chan->desc_lock); | 623 | spin_unlock_bh(&sh_chan->desc_lock); |
619 | 624 | ||
620 | sh_dmae_chan_ld_cleanup(sh_chan, true); | 625 | sh_dmae_chan_ld_cleanup(sh_chan, true); |
626 | |||
627 | return 0; | ||
621 | } | 628 | } |
622 | 629 | ||
623 | static dma_async_tx_callback __ld_cleanup(struct sh_dmae_chan *sh_chan, bool all) | 630 | static dma_async_tx_callback __ld_cleanup(struct sh_dmae_chan *sh_chan, bool all) |
@@ -749,10 +756,9 @@ static void sh_dmae_memcpy_issue_pending(struct dma_chan *chan) | |||
749 | sh_chan_xfer_ld_queue(sh_chan); | 756 | sh_chan_xfer_ld_queue(sh_chan); |
750 | } | 757 | } |
751 | 758 | ||
752 | static enum dma_status sh_dmae_is_complete(struct dma_chan *chan, | 759 | static enum dma_status sh_dmae_tx_status(struct dma_chan *chan, |
753 | dma_cookie_t cookie, | 760 | dma_cookie_t cookie, |
754 | dma_cookie_t *done, | 761 | struct dma_tx_state *txstate) |
755 | dma_cookie_t *used) | ||
756 | { | 762 | { |
757 | struct sh_dmae_chan *sh_chan = to_sh_chan(chan); | 763 | struct sh_dmae_chan *sh_chan = to_sh_chan(chan); |
758 | dma_cookie_t last_used; | 764 | dma_cookie_t last_used; |
@@ -764,12 +770,7 @@ static enum dma_status sh_dmae_is_complete(struct dma_chan *chan, | |||
764 | last_used = chan->cookie; | 770 | last_used = chan->cookie; |
765 | last_complete = sh_chan->completed_cookie; | 771 | last_complete = sh_chan->completed_cookie; |
766 | BUG_ON(last_complete < 0); | 772 | BUG_ON(last_complete < 0); |
767 | 773 | dma_set_tx_state(txstate, last_complete, last_used, 0); | |
768 | if (done) | ||
769 | *done = last_complete; | ||
770 | |||
771 | if (used) | ||
772 | *used = last_used; | ||
773 | 774 | ||
774 | spin_lock_bh(&sh_chan->desc_lock); | 775 | spin_lock_bh(&sh_chan->desc_lock); |
775 | 776 | ||
@@ -1041,12 +1042,12 @@ static int __init sh_dmae_probe(struct platform_device *pdev) | |||
1041 | = sh_dmae_alloc_chan_resources; | 1042 | = sh_dmae_alloc_chan_resources; |
1042 | shdev->common.device_free_chan_resources = sh_dmae_free_chan_resources; | 1043 | shdev->common.device_free_chan_resources = sh_dmae_free_chan_resources; |
1043 | shdev->common.device_prep_dma_memcpy = sh_dmae_prep_memcpy; | 1044 | shdev->common.device_prep_dma_memcpy = sh_dmae_prep_memcpy; |
1044 | shdev->common.device_is_tx_complete = sh_dmae_is_complete; | 1045 | shdev->common.device_tx_status = sh_dmae_tx_status; |
1045 | shdev->common.device_issue_pending = sh_dmae_memcpy_issue_pending; | 1046 | shdev->common.device_issue_pending = sh_dmae_memcpy_issue_pending; |
1046 | 1047 | ||
1047 | /* Compulsory for DMA_SLAVE fields */ | 1048 | /* Compulsory for DMA_SLAVE fields */ |
1048 | shdev->common.device_prep_slave_sg = sh_dmae_prep_slave_sg; | 1049 | shdev->common.device_prep_slave_sg = sh_dmae_prep_slave_sg; |
1049 | shdev->common.device_terminate_all = sh_dmae_terminate_all; | 1050 | shdev->common.device_control = sh_dmae_control; |
1050 | 1051 | ||
1051 | shdev->common.dev = &pdev->dev; | 1052 | shdev->common.dev = &pdev->dev; |
1052 | /* Default transfer size of 32 bytes requires 32-byte alignment */ | 1053 | /* Default transfer size of 32 bytes requires 32-byte alignment */ |