linux-kernel - [PATCH 0/2] gpio: of: Support cascaded GPIO

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Message-Id: <1464985616-11821-1-git-send-email-pantelis.antoniou@konsulko.com>
Date:	Fri,  3 Jun 2016 23:26:54 +0300
From:	Pantelis Antoniou <pantelis.antoniou@...sulko.com>
To:	Linus Walleij <linus.walleij@...aro.org>
Cc:	Alexandre Courbot <gnurou@...il.com>,
	Rob Herring <robherring2@...il.com>,
	Frank Rowand <frowand.list@...il.com>,
	Matt Porter <mporter@...sulko.com>,
	Koen Kooi <koen@...inion.thruhere.net>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Guenter Roeck <linux@...ck-us.net>,
	Marek Vasut <marex@...x.de>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
	Pantelis Antoniou <pantelis.antoniou@...sulko.com>,
	Pantelis Antoniou <panto@...oniou-consulting.com>
Subject: [PATCH 0/2] gpio: of: Support cascaded GPIO

These two patches enable GPIO cascades where a match may be
retried until the finalr real GPIO is located.

The first patch removes the const specifier from gpiospec at of_xlate(),
while the second introduces the new method of_gpiochip_find() that
performs the cascade operation.

Pantelis Antoniou (2):
  gpio: Remove const from gpiospec in of_xlate
  gpio: Support cascaded GPIO chip lookup for OF

 drivers/gpio/gpio-brcmstb.c |  2 +-
 drivers/gpio/gpio-davinci.c |  2 +-
 drivers/gpio/gpio-etraxfs.c |  2 +-
 drivers/gpio/gpio-lpc32xx.c |  2 +-
 drivers/gpio/gpio-pxa.c     |  2 +-
 drivers/gpio/gpiolib-of.c   | 18 +++++----------
 drivers/gpio/gpiolib.c      | 54 +++++++++++++++++++++++++++++++++++++++++++++
 drivers/gpio/gpiolib.h      | 14 ++++++++++++
 include/linux/gpio/driver.h |  2 +-
 include/linux/of_gpio.h     |  2 +-
 10 files changed, 80 insertions(+), 20 deletions(-)

-- 
1.7.12