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Message-Id: <f4341d4672a23a958398b75cb4305e0e680f2e32.1304532833.git.nicolas.ferre@atmel.com> Date: Wed, 4 May 2011 20:14:12 +0200 From: Nicolas Ferre <nicolas.ferre@...el.com> To: vinod.koul@...el.com, dan.j.williams@...el.com, linux-arm-kernel@...ts.infradead.org Cc: linux-kernel@...r.kernel.org, Nicolas Ferre <nicolas.ferre@...el.com> Subject: [PATCH 1/2] dmaengine: at_hdmac: set residue as total len in atc_tx_status 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@...el.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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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