From: Grygorii Strashko <grygorii.strashko@ti.com>
Date: Thu, 25 Jun 2015 15:18:11 +0000 (+0300)
Subject: gpio: pcf857x: get rid of slock spinlock
X-Git-Tag: omap-for-v4.3/fixes-rc1~96^2~46
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=049aaf9f7e30731ce030eef3e4fd255cf8b1ae02;p=pandora-kernel.git

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>
---

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