The current interrupt handler do some actions specifics to am335x.
These actions should be made by the platform interrupt handler.
Split out the interrupt handler in two:
one for the am335x platform and a generic one.
Signed-off-by: Alexandre Bailon <abailon@xxxxxxxxxxxx>
---
drivers/dma/cppi41.c | 24 +++++++++++++++---------
1 file changed, 15 insertions(+), 9 deletions(-)
diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c
index 25ee71d..42744ed 100644
--- a/drivers/dma/cppi41.c
+++ b/drivers/dma/cppi41.c
@@ -284,18 +284,11 @@ static u32 cppi41_pop_desc(struct cppi41_dd *cdd, unsigned queue_num)
return desc;
}
-static irqreturn_t cppi41_irq(int irq, void *data)
+static irqreturn_t cppi41_irq(struct cppi41_dd *cdd)
{
- struct cppi41_dd *cdd = data;
struct cppi41_channel *c;
- u32 status;
int i;
- status = cppi_readl(cdd->usbss_mem + USBSS_IRQ_STATUS);
- if (!(status & USBSS_IRQ_PD_COMP))
- return IRQ_NONE;
- cppi_writel(status, cdd->usbss_mem + USBSS_IRQ_STATUS);
-
for (i = QMGR_PENDING_SLOT_Q(FIST_COMPLETION_QUEUE); i < QMGR_NUM_PEND;
i++) {
u32 val;
@@ -351,6 +344,19 @@ static irqreturn_t cppi41_irq(int irq, void *data)
return IRQ_HANDLED;
}
+static irqreturn_t am335x_cppi41_irq(int irq, void *data)
+{
+ struct cppi41_dd *cdd = data;
+ u32 status;
+
+ status = cppi_readl(cdd->usbss_mem + USBSS_IRQ_STATUS);
+ if (!(status & USBSS_IRQ_PD_COMP))
+ return IRQ_NONE;
+ cppi_writel(status, cdd->usbss_mem + USBSS_IRQ_STATUS);
+
+ return cppi41_irq(cdd);
+}
+
static dma_cookie_t cppi41_tx_submit(struct dma_async_tx_descriptor *tx)
{
dma_cookie_t cookie;
@@ -949,7 +955,7 @@ static struct dma_chan *cppi41_dma_xlate(struct of_phandle_args *dma_spec,
}
static const struct cppi_glue_infos am335x_usb_infos = {
- .isr = cppi41_irq,
+ .isr = am335x_cppi41_irq,
.queues_rx = am335x_usb_queues_rx,
.queues_tx = am335x_usb_queues_tx,
.td_queue = { .submit = 31, .complete = 0 },
--
2.10.2
--
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