Messages in this thread Patch in this message | | | From | Nicolas Ferre <> | Subject | [PATCH v2 1/3] dmaengine: at_hdmac: set residue as total len in atc_tx_status | Date | Fri, 6 May 2011 19:56:51 +0200 |
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If transfer status is !=DMA_SUCCESS, return total transfer len as residue, instead of zero.
Idea from dw_dmac patch by Viresh Kumar.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> --- drivers/dma/at_hdmac.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index f52c9e3..ba0b5ec 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -1026,7 +1026,12 @@ atc_tx_status(struct dma_chan *chan, spin_unlock_bh(&atchan->lock); - dma_set_tx_state(txstate, last_complete, last_used, 0); + if (ret != DMA_SUCCESS) + dma_set_tx_state(txstate, last_complete, last_used, + atc_first_active(atchan)->len); + else + dma_set_tx_state(txstate, last_complete, last_used, 0); + dev_vdbg(chan2dev(chan), "tx_status: %d (d%d, u%d)\n", cookie, last_complete ? last_complete : 0, last_used ? last_used : 0); -- 1.7.3
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