dpaa2-switch: request all interrupts sources on the DPSW

Request all interrupt sources to be read and then cleared on the DPSW
object. In the next patches we'll also add support for treating other
interrupts.
Signed-off-by: NIoana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c

@@ -1433,20 +1433,13 @@ static irqreturn_t dpaa2_switch_irq0_handler_thread(int irq_num, void *arg)
 {
 	struct device *dev = (struct device *)arg;
 	struct ethsw_core *ethsw = dev_get_drvdata(dev);
-
-	/* Mask the events and the if_id reserved bits to be cleared on read */
-	u32 status = DPSW_IRQ_EVENT_LINK_CHANGED | 0xFFFF0000;
+	u32 status = ~0;
 	int err;
 
 	err = dpsw_get_irq_status(ethsw->mc_io, 0, ethsw->dpsw_handle,
 				  DPSW_IRQ_INDEX_IF, &status);
 	if (err) {
 		dev_err(dev, "Can't get irq status (err %d)\n", err);
-
-		err = dpsw_clear_irq_status(ethsw->mc_io, 0, ethsw->dpsw_handle,
-					    DPSW_IRQ_INDEX_IF, 0xFFFFFFFF);
-		if (err)
-			dev_err(dev, "Can't clear irq status (err %d)\n", err);
 		goto out;
 	}
 
@@ -1454,6 +1447,11 @@ static irqreturn_t dpaa2_switch_irq0_handler_thread(int irq_num, void *arg)
 		dpaa2_switch_links_state_update(ethsw);
 
 out:
+	err = dpsw_clear_irq_status(ethsw->mc_io, 0, ethsw->dpsw_handle,
+				    DPSW_IRQ_INDEX_IF, status);
+	if (err)
+		dev_err(dev, "Can't clear irq status (err %d)\n", err);
+
 	return IRQ_HANDLED;
 }