From 049aaf9f7e30731ce030eef3e4fd255cf8b1ae02 Mon Sep 17 00:00:00 2001
From: Grygorii Strashko <grygorii.strashko@ti.com>
Date: Thu, 25 Jun 2015 18:18:11 +0300
Subject: [PATCH] gpio: pcf857x: get rid of slock spinlock

The spinlock 'slock' is used now to protect pcf857x_irq() from itself
which is unnecessary (especially after switching to use threaded
IRQs). Hence, remove it and use mutex to protect device data in IRQ
handler.

Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
Reading git-format-patch failed