[PATCH net-next v3 2/8] net: dsa: microchip: Decorrelate IRQ domain from port

["Bastien Curutchet (Schneider Electric)" <bastien.curutchet@bootlin.com>]

KSZ8463 has one register holding interrupt bits from both port 1 and 2.
So it has to use one IRQ domain for both of its ports. This conflicts
with the current initialization procedure that ties one IRQ domain to
each port.

Decorrelate IRQ domain from port so a port can use an IRQ domain not
directly related to itself.

Signed-off-by: Bastien Curutchet (Schneider Electric) <bastien.curutchet@bootlin.com>
---
 drivers/net/dsa/microchip/ksz_ptp.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz_ptp.c b/drivers/net/dsa/microchip/ksz_ptp.c
index 4a2cc57a628f97bd51fcb11057bc4effda9205dd..3b0dddf918595e9318c9e9779035d5152dcd9dde 100644
--- a/drivers/net/dsa/microchip/ksz_ptp.c
+++ b/drivers/net/dsa/microchip/ksz_ptp.c
@@ -1099,18 +1099,17 @@ static void ksz_ptp_msg_irq_free(struct ksz_port *port, u8 n)
 	irq_dispose_mapping(ptpmsg_irq->num);
 }
 
-static int ksz_ptp_msg_irq_setup(struct ksz_port *port, u8 n)
+static int ksz_ptp_msg_irq_setup(struct irq_domain *domain, struct ksz_port *port, u8 n)
 {
 	u16 ts_reg[] = {REG_PTP_PORT_PDRESP_TS, REG_PTP_PORT_XDELAY_TS,
 			REG_PTP_PORT_SYNC_TS};
 	static const char * const name[] = {"pdresp-msg", "xdreq-msg",
 					    "sync-msg"};
 	const struct ksz_dev_ops *ops = port->ksz_dev->dev_ops;
-	struct ksz_irq *ptpirq = &port->ptpirq;
 	struct ksz_ptp_irq *ptpmsg_irq;
 
 	ptpmsg_irq = &port->ptpmsg_irq[n];
-	ptpmsg_irq->num = irq_create_mapping(ptpirq->domain, n);
+	ptpmsg_irq->num = irq_create_mapping(domain, n);
 	if (!ptpmsg_irq->num)
 		return -EINVAL;
 
@@ -1162,7 +1161,7 @@ int ksz_ptp_irq_setup(struct dsa_switch *ds, u8 p)
 		goto out;
 
 	for (irq = 0; irq < ptpirq->nirqs; irq++) {
-		ret = ksz_ptp_msg_irq_setup(port, irq);
+		ret = ksz_ptp_msg_irq_setup(ptpirq->domain, port, irq);
 		if (ret)
 			goto out_ptp_msg;
 	}

-- 
2.52.0