From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
To: Jun Li <jun.li@nxp.com>
Cc: "linux@roeck-us.net" <linux@roeck-us.net>,
"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
dl-linux-imx <linux-imx@nxp.com>
Subject: Re: [PATCH v3] usb: typec: tcpci: mask event interrupts when remove driver
Date: Mon, 20 Jan 2020 11:27:42 +0200 [thread overview]
Message-ID: <20200120092742.GA32175@kuha.fi.intel.com> (raw)
In-Reply-To: <1579502333-4145-1-git-send-email-jun.li@nxp.com>
On Mon, Jan 20, 2020 at 06:43:19AM +0000, Jun Li wrote:
> 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>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.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..dfae41f 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 unregistering port */
> + err = tcpci_write16(chip->tcpci, TCPC_ALERT_MASK, 0);
> + if (err < 0)
> + return err;
>
> tcpci_unregister_port(chip->tcpci);
>
> --
> 2.7.4
--
heikki
prev parent reply other threads:[~2020-01-20 9:27 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-20 6:43 [PATCH v3] usb: typec: tcpci: mask event interrupts when remove driver Jun Li
2020-01-20 7:18 ` Guenter Roeck
2020-01-20 9:27 ` Heikki Krogerus [this message]
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