From mboxrd@z Thu Jan 1 00:00:00 1970 From: yegorslists-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org Subject: [PATCH 1/3] serial: mctrl_gpio: restrict MCTRL initialization Date: Thu, 27 Jul 2017 15:17:34 +0200 Message-ID: <1501161456-13367-2-git-send-email-yegorslists@googlemail.com> References: <1501161456-13367-1-git-send-email-yegorslists@googlemail.com> Return-path: In-Reply-To: <1501161456-13367-1-git-send-email-yegorslists-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-serial-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org, andriy.shevchenko-VuQAYsv1563Yd54FQh9/CA@public.gmane.org, jslaby-IBi9RG/b67k@public.gmane.org, tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org, robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, mika.westerberg-VuQAYsv1563Yd54FQh9/CA@public.gmane.org, uwe-rXY34ruvC2xidJT2blvkqNi2O/JbrIOy@public.gmane.org, linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Yegor Yefremov List-Id: devicetree@vger.kernel.org From: Yegor Yefremov GPIOs specified for serial port can be used either as GPIO driven MCTRL or as a wakeup-source. Use the latter property to abort the MCTRL initialization. Cc: Andy Shevchenko Signed-off-by: Yegor Yefremov --- drivers/tty/serial/serial_mctrl_gpio.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/tty/serial/serial_mctrl_gpio.c b/drivers/tty/serial/serial_mctrl_gpio.c index d2da6aa..dce661c 100644 --- a/drivers/tty/serial/serial_mctrl_gpio.c +++ b/drivers/tty/serial/serial_mctrl_gpio.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include @@ -118,6 +119,9 @@ struct mctrl_gpios *mctrl_gpio_init_noauto(struct device *dev, unsigned int idx) struct mctrl_gpios *gpios; enum mctrl_gpio_idx i; + if (device_property_present(dev, "wakeup-source")) + return ERR_PTR(-ENOSYS); + gpios = devm_kzalloc(dev, sizeof(*gpios), GFP_KERNEL); if (!gpios) return ERR_PTR(-ENOMEM); -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html