summaryrefslogtreecommitdiff
path: root/drivers/dma/ipu/ipu_idmac.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/dma/ipu/ipu_idmac.c')
-rw-r--r--drivers/dma/ipu/ipu_idmac.c34
1 files changed, 21 insertions, 13 deletions
diff --git a/drivers/dma/ipu/ipu_idmac.c b/drivers/dma/ipu/ipu_idmac.c
index 2a446397c884..cb26ee9773d6 100644
--- a/drivers/dma/ipu/ipu_idmac.c
+++ b/drivers/dma/ipu/ipu_idmac.c
@@ -1472,13 +1472,18 @@ static void idmac_issue_pending(struct dma_chan *chan)
*/
}
-static void __idmac_terminate_all(struct dma_chan *chan)
+static int __idmac_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
+ unsigned long arg)
{
struct idmac_channel *ichan = to_idmac_chan(chan);
struct idmac *idmac = to_idmac(chan->device);
unsigned long flags;
int i;
+ /* Only supports DMA_TERMINATE_ALL */
+ if (cmd != DMA_TERMINATE_ALL)
+ return -ENXIO;
+
ipu_disable_channel(idmac, ichan,
ichan->status >= IPU_CHANNEL_ENABLED);
@@ -1505,17 +1510,23 @@ static void __idmac_terminate_all(struct dma_chan *chan)
tasklet_enable(&to_ipu(idmac)->tasklet);
ichan->status = IPU_CHANNEL_INITIALIZED;
+
+ return 0;
}
-static void idmac_terminate_all(struct dma_chan *chan)
+static int idmac_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
+ unsigned long arg)
{
struct idmac_channel *ichan = to_idmac_chan(chan);
+ int ret;
mutex_lock(&ichan->chan_mutex);
- __idmac_terminate_all(chan);
+ ret = __idmac_control(chan, cmd, arg);
mutex_unlock(&ichan->chan_mutex);
+
+ return ret;
}
#ifdef DEBUG
@@ -1607,7 +1618,7 @@ static void idmac_free_chan_resources(struct dma_chan *chan)
mutex_lock(&ichan->chan_mutex);
- __idmac_terminate_all(chan);
+ __idmac_control(chan, DMA_TERMINATE_ALL, 0);
if (ichan->status > IPU_CHANNEL_FREE) {
#ifdef DEBUG
@@ -1637,15 +1648,12 @@ static void idmac_free_chan_resources(struct dma_chan *chan)
tasklet_schedule(&to_ipu(idmac)->tasklet);
}
-static enum dma_status idmac_is_tx_complete(struct dma_chan *chan,
- dma_cookie_t cookie, dma_cookie_t *done, dma_cookie_t *used)
+static enum dma_status idmac_tx_status(struct dma_chan *chan,
+ dma_cookie_t cookie, struct dma_tx_state *txstate)
{
struct idmac_channel *ichan = to_idmac_chan(chan);
- if (done)
- *done = ichan->completed;
- if (used)
- *used = chan->cookie;
+ dma_set_tx_state(txstate, ichan->completed, chan->cookie, 0);
if (cookie != chan->cookie)
return DMA_ERROR;
return DMA_SUCCESS;
@@ -1664,12 +1672,12 @@ static int __init ipu_idmac_init(struct ipu *ipu)
dma->dev = ipu->dev;
dma->device_alloc_chan_resources = idmac_alloc_chan_resources;
dma->device_free_chan_resources = idmac_free_chan_resources;
- dma->device_is_tx_complete = idmac_is_tx_complete;
+ dma->device_tx_status = idmac_tx_status;
dma->device_issue_pending = idmac_issue_pending;
/* Compulsory for DMA_SLAVE fields */
dma->device_prep_slave_sg = idmac_prep_slave_sg;
- dma->device_terminate_all = idmac_terminate_all;
+ dma->device_control = idmac_control;
INIT_LIST_HEAD(&dma->channels);
for (i = 0; i < IPU_CHANNELS_NUM; i++) {
@@ -1703,7 +1711,7 @@ static void __exit ipu_idmac_exit(struct ipu *ipu)
for (i = 0; i < IPU_CHANNELS_NUM; i++) {
struct idmac_channel *ichan = ipu->channel + i;
- idmac_terminate_all(&ichan->dma_chan);
+ idmac_control(&ichan->dma_chan, DMA_TERMINATE_ALL, 0);
idmac_prep_slave_sg(&ichan->dma_chan, NULL, 0, DMA_NONE, 0);
}