From mboxrd@z Thu Jan 1 00:00:00 1970 From: yegorslists-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org Subject: [PATCH v2 0/3] tty: serial: 8250 introduce mctrl_gpio helpers Date: Mon, 31 Jul 2017 09:13:20 +0200 Message-ID: <1501485203-13185-1-git-send-email-yegorslists@googlemail.com> Return-path: 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, julia.lawall-L2FTfq7BK8M@public.gmane.org, peter-WaGBZJeGNqdsbIuE7sb01tBPR1lH4CV8@public.gmane.org, Yegor Yefremov List-Id: devicetree@vger.kernel.org From: Yegor Yefremov This patch series aims to reintroduce the mctrl_gpio helpers for 8250 UARTs. There are some UARTs that use GPIO signals as a wakeup-sourse. The first patch addresses this issue and tries to destinguish GPIO usage via searching for "wakeup-sourse" property. Though it must be decided whether this property is secure to use for this purpose. Changes v1 -> v2: - unlock mutex, if mctrl_gpio_init fails (suggested by Julia Lawall) - describe -ENOSYS return value choice (suggested by Andy Shevchenko) Yegor Yefremov (3): serial: mctrl_gpio: restrict MCTRL initialization tty/serial/8250: use mctrl_gpio helpers tty/serial/8250: add DT bindings description for mctrl_gpio helpers Documentation/devicetree/bindings/serial/8250.txt | 26 +++++++++++++++++ drivers/tty/serial/8250/8250.h | 35 ++++++++++++++++++++++- drivers/tty/serial/8250/8250_core.c | 12 ++++++++ drivers/tty/serial/8250/8250_omap.c | 31 +++++++++++--------- drivers/tty/serial/8250/8250_port.c | 7 ++++- drivers/tty/serial/8250/Kconfig | 1 + drivers/tty/serial/serial_mctrl_gpio.c | 4 +++ include/linux/serial_8250.h | 1 + 8 files changed, 102 insertions(+), 15 deletions(-) -- 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