netdev - [PATCH v2 net-next 3/6] net: dsa: mv88e6xxx: Mask g1 interrupts and free interrupt

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Message-Id: <1479669260-14638-4-git-send-email-andrew@lunn.ch>
Date:   Sun, 20 Nov 2016 20:14:16 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     David Miller <davem@...emloft.net>
Cc:     Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        netdev <netdev@...r.kernel.org>, Andrew Lunn <andrew@...n.ch>
Subject: [PATCH v2 net-next 3/6] net: dsa: mv88e6xxx: Mask g1 interrupts and free interrupt

Fix the g1 interrupt free code such that is masks any further
interrupts, and then releases the interrupt.

Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index b843052d32bd..8fcef7e0d3ba 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -413,6 +413,13 @@ static const struct irq_domain_ops mv88e6xxx_g1_irq_domain_ops = {
 static void mv88e6xxx_g1_irq_free(struct mv88e6xxx_chip *chip)
 {
 	int irq, virq;
+	u16 mask;
+
+	mv88e6xxx_g1_read(chip, GLOBAL_CONTROL, &mask);
+	mask |= GENMASK(chip->g1_irq.nirqs, 0);
+	mv88e6xxx_g1_write(chip, GLOBAL_CONTROL, mask);
+
+	free_irq(chip->irq, chip);
 
 	for (irq = 0; irq < 16; irq++) {
 		virq = irq_find_mapping(chip->g1_irq.domain, irq);
-- 
2.10.2