linux-kernel - [PATCH 0/2] convert to use generic irq handler

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Date:	Fri, 25 Sep 2015 12:28:01 -0700
From:	Grygorii Strashko <grygorii.strashko@...com>
To:	Linus Walleij <linus.walleij@...aro.org>,
	Alexandre Courbot <gnurou@...il.com>, <ssantosh@...nel.org>,
	<tony@...mide.com>
CC:	<linux-omap@...r.kernel.org>,
	Austin Schuh <austin@...oton-tech.com>,
	<philipp@...oton-tech.com>, <linux-rt-users@...r.kernel.org>,
	<linux-gpio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Grygorii Strashko <grygorii.strashko@...com>
Subject: [PATCH 0/2] convert to use generic irq handler

This patch series contains patches which fixes wrong APIs usage in atomic
context on RT-kernel. The final goal is to make TI OMAP GPIO driver
compatible with -RT kernel as much as possible.

Patch 1: required to be compatible with -RT kernel, because PM runtime's
irq_safe mode is incompatible with -RT.
Patch 2: This patch converts TI OMAP GPIO driver to use generic irq
 handler instead of chained IRQ handler. This way OMAP GPIO driver will be
 compatible with RT-kernel where it will be forced thread IRQ handler
 while in non-RT kernel it still will be executed in HW IRQ context.

Boot, basic gpio functionality tested on:
 dra7-evm, BeagleBone(white), am43xx-gpevm, am437x-sk
Manually tested on dra7-evm including suspend/resume and wakeup.

Links on RFC:
 https://lkml.org/lkml/2015/8/18/161
 https://lkml.org/lkml/2015/8/18/162

Grygorii Strashko (2):
  gpio: omap: move pm runtime in irq_chip.irq_bus_lock/sync_unlock
  gpio: omap: convert to use generic irq handler

 drivers/gpio/gpio-omap.c | 80 +++++++++++++++++++++++++-----------------------
 1 file changed, 42 insertions(+), 38 deletions(-)

-- 
2.5.1

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