[PATCH 1/1] drivers: net: davinci_cpdma: acknowledge interrupt properly

[Mugunthan V N]

CPDMA interrupts are not properly acknowledged which leads to interrupt
storm, only cpdma interrupt 0 is acknowledged in Davinci CPDMA driver.
Changed cpdma_ctlr_eoi api to acknowledge 1 and 2 interrupts which are
used for rx and tx respectively.

Reported-by: Pantelis Antoniou <panto at antoniou-consulting.com>
Signed-off-by: Mugunthan V N <mugunthanvnm at ti.com>
---
 drivers/net/ethernet/ti/davinci_cpdma.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c
index f862918..afe14a6 100644
--- a/drivers/net/ethernet/ti/davinci_cpdma.c
+++ b/drivers/net/ethernet/ti/davinci_cpdma.c
@@ -487,6 +487,8 @@ int cpdma_ctlr_int_ctrl(struct cpdma_ctlr *ctlr, bool enable)
 void cpdma_ctlr_eoi(struct cpdma_ctlr *ctlr)
 {
 	dma_reg_write(ctlr, CPDMA_MACEOIVECTOR, 0);
+	dma_reg_write(ctlr, CPDMA_MACEOIVECTOR, 1);
+	dma_reg_write(ctlr, CPDMA_MACEOIVECTOR, 2);
 }
 
 struct cpdma_chan *cpdma_chan_create(struct cpdma_ctlr *ctlr, int chan_num,
-- 
1.7.9.5