@@ -101,7 +101,8 @@ static bool musb_is_tx_fifo_empty(struct musb_hw_ep *hw_ep)
return true;
}
-static void cppi41_dma_callback(void *private_data);
+static void cppi41_dma_callback(void *private_data,
+ const struct dmaengine_result *result);
static void cppi41_trans_done(struct cppi41_dma_channel *cppi41_channel)
{
@@ -156,7 +157,7 @@ static void cppi41_trans_done(struct cppi41_dma_channel *cppi41_channel)
if (WARN_ON(!dma_desc))
return;
- dma_desc->callback = cppi41_dma_callback;
+ dma_desc->callback_result = cppi41_dma_callback;
dma_desc->callback_param = &cppi41_channel->channel;
cppi41_channel->cookie = dma_desc->tx_submit(dma_desc);
trace_musb_cppi41_cont(cppi41_channel);
@@ -206,7 +207,8 @@ static enum hrtimer_restart cppi41_recheck_tx_req(struct hrtimer *timer)
return ret;
}
-static void cppi41_dma_callback(void *private_data)
+static void cppi41_dma_callback(void *private_data,
+ const struct dmaengine_result *result)
{
struct dma_channel *channel = private_data;
struct cppi41_dma_channel *cppi41_channel = channel->private_data;
@@ -223,6 +225,9 @@ static void cppi41_dma_callback(void *private_data)
if (controller->dma_callback)
controller->dma_callback(musb);
+ if (result->result == DMA_TRANS_ABORTED)
+ return;
+
spin_lock_irqsave(&musb->lock, flags);
dmaengine_tx_status(cppi41_channel->dc, cppi41_channel->cookie,
@@ -415,7 +420,7 @@ static bool cppi41_configure_channel(struct dma_channel *channel,
if (!dma_desc)
return false;
- dma_desc->callback = cppi41_dma_callback;
+ dma_desc->callback_result = cppi41_dma_callback;
dma_desc->callback_param = channel;
cppi41_channel->cookie = dma_desc->tx_submit(dma_desc);
cppi41_channel->channel.rx_packet_done = false;
Update cppi41_dma_callback() to detect an aborted transfer. This is required to acknowledge the interrupt that may be fired during a teardown.. Signed-off-by: Alexandre Bailon <abailon@baylibre.com> --- drivers/usb/musb/musb_cppi41.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-)