DMAENGINE: generic channel status v2

[net-next-2.6.git] / drivers / dma / ppc4xx / adma.c

diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
index 0a3478e910f055aca4bdc22bacdfb221ccd5ee40..d9a54c01865242cebb70fdbd6541f63b35f688f6 100644 (file)
--- a/drivers/dma/ppc4xx/adma.c
+++ b/drivers/dma/ppc4xx/adma.c
@@ -3934,12 +3934,13 @@ static void ppc440spe_adma_free_chan_resources(struct dma_chan *chan)
 }
 
 /**
- * ppc440spe_adma_is_complete - poll the status of an ADMA transaction
+ * ppc440spe_adma_tx_status - poll the status of an ADMA transaction
  * @chan: ADMA channel handle
  * @cookie: ADMA transaction identifier
+ * @txstate: a holder for the current state of the channel
  */
-static enum dma_status ppc440spe_adma_is_complete(struct dma_chan *chan,
-       dma_cookie_t cookie, dma_cookie_t *done, dma_cookie_t *used)
+static enum dma_status ppc440spe_adma_tx_status(struct dma_chan *chan,
+                       dma_cookie_t cookie, struct dma_tx_state *txstate)
 {
        struct ppc440spe_adma_chan *ppc440spe_chan;
        dma_cookie_t last_used;
@@ -3950,10 +3951,11 @@ static enum dma_status ppc440spe_adma_is_complete(struct dma_chan *chan,
        last_used = chan->cookie;
        last_complete = ppc440spe_chan->completed_cookie;
 
-       if (done)
-               *done = last_complete;
-       if (used)
-               *used = last_used;
+       if (txstate) {
+               txstate->last = last_complete;
+               txstate->used = last_used;
+               txstate->residue = 0;
+       }
 
        ret = dma_async_is_complete(cookie, last_complete, last_used);
        if (ret == DMA_SUCCESS)
@@ -3964,10 +3966,11 @@ static enum dma_status ppc440spe_adma_is_complete(struct dma_chan *chan,
        last_used = chan->cookie;
        last_complete = ppc440spe_chan->completed_cookie;
 
-       if (done)
-               *done = last_complete;
-       if (used)
-               *used = last_used;
+       if (txstate) {
+               txstate->last = last_complete;
+               txstate->used = last_used;
+               txstate->residue = 0;
+       }
 
        return dma_async_is_complete(cookie, last_complete, last_used);
 }
@@ -4179,7 +4182,7 @@ static void ppc440spe_adma_init_capabilities(struct ppc440spe_adma_device *adev)
                                ppc440spe_adma_alloc_chan_resources;
        adev->common.device_free_chan_resources =
                                ppc440spe_adma_free_chan_resources;
-       adev->common.device_is_tx_complete = ppc440spe_adma_is_complete;
+       adev->common.device_tx_status = ppc440spe_adma_tx_status;
        adev->common.device_issue_pending = ppc440spe_adma_issue_pending;
 
        /* Set prep routines based on capability */
@@ -4940,7 +4943,7 @@ out_free:
        return ret;
 }
 
-static struct of_device_id __devinitdata ppc440spe_adma_of_match[] = {
+static const struct of_device_id ppc440spe_adma_of_match[] __devinitconst = {
        { .compatible   = "ibm,dma-440spe", },
        { .compatible   = "amcc,xor-accelerator", },
        {},