[PATCH 0/3] tty: serial: 8250 introduce mctrl_gpio helpers

[yegorslists-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org]

From: Yegor Yefremov <yegorslists-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>

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.

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               |  9 ++++++
 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, 99 insertions(+), 15 deletions(-)

-- 
2.1.4

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