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* [PATCH v2] usb: typec: tcpci: mask event interrupts when remove driver
@ 2020-01-20  5:55 Jun Li
  2020-01-20  6:06 ` Guenter Roeck
  0 siblings, 1 reply; 3+ messages in thread
From: Jun Li @ 2020-01-20  5:55 UTC (permalink / raw)
  To: linux, heikki.krogerus; +Cc: gregkh, linux-usb, dl-linux-imx

This is to prevent any possible events generated while unregister
tpcm port.

Fixes: 74e656d6b0551 ("staging: typec: Type-C Port Controller Interface driver (tcpci)")
Signed-off-by: Li Jun <jun.li@nxp.com>
---
 drivers/usb/typec/tcpm/tcpci.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c
index c1f7073..fb9f2c1 100644
--- a/drivers/usb/typec/tcpm/tcpci.c
+++ b/drivers/usb/typec/tcpm/tcpci.c
@@ -581,6 +581,12 @@ static int tcpci_probe(struct i2c_client *client,
 static int tcpci_remove(struct i2c_client *client)
 {
 	struct tcpci_chip *chip = i2c_get_clientdata(client);
+	int err;
+
+	/* Disable chip interrupts before unregistger port */
+	err = tcpci_write16(chip->tcpci, TCPC_ALERT_MASK, 0);
+	if (err < 0)
+		return err;
 
 	tcpci_unregister_port(chip->tcpci);
 
-- 
2.7.4


^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2020-01-20  6:42 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2020-01-20  5:55 [PATCH v2] usb: typec: tcpci: mask event interrupts when remove driver Jun Li
2020-01-20  6:06 ` Guenter Roeck
2020-01-20  6:42   ` Jun Li

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