From 8f1e12512e9f1276b68c8b14a60961658c73336f Mon Sep 17 00:00:00 2001
From: Markus Franke <markus.franke@s2002.tu-chemnitz.de>
Date: Thu, 12 Apr 2012 00:42:03 +0200
Subject: [PATCH] w1: Disable irqs during 1-wire bus operations, extend 1-wire
 reset pulse

This patch offers the possibility to disables irqs during w1_write_bit()
and w1_reset_bus() operations as timing requirements are very strict for
the 1-wire bus protocol. Per default interrupts are enabled but can be
disabled via the module parameter "w1_disable_irqs".

Extend 1-wire reset pulse length from 480us to 500us as 480us is the
minimum requirement for the 1-wire reset/presence pulse.

Signed-off-by: Markus Franke <franm@hrz.tu-chemnitz.de>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
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