usb: typec: tcpci_rt1711h: avoid screaming irq causing boot hangs
authorLi Jun <jun.li@nxp.com>
Thu, 4 Jun 2020 11:21:18 +0000 (19:21 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 18 Jun 2020 08:42:53 +0000 (10:42 +0200)
commit302c570bf36e997d55ad0d60628a2feec76954a4
tree69013053fb183d28f0a68fb6cf406e702cf1cb0a
parent07c112fb09c86c0231f6ff0061a000ffe91c8eb9
usb: typec: tcpci_rt1711h: avoid screaming irq causing boot hangs

John reported screaming irq caused by rt1711h when system boot[1],
this is because irq request is done before tcpci_register_port(),
so the chip->tcpci has not been setup, irq handler is entered but
can't do anything, this patch is to address this by moving the irq
request after tcpci_register_port().

[1] https://lore.kernel.org/linux-usb/20200530040157.31038-1-john.stultz@linaro.org

Fixes: ce08eaeb6388 ("staging: typec: rt1711h typec chip driver")
Cc: stable <stable@vger.kernel.org> # v4.18+
Cc: John Stultz <john.stultz@linaro.org>
Reported-and-tested-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Li Jun <jun.li@nxp.com>
Link: https://lore.kernel.org/r/20200604112118.38062-1-jun.li@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/typec/tcpm/tcpci_rt1711h.c