From: Peter Korsgaard <jacmet@sunsite.dk>
Date: Wed, 22 Sep 2010 20:29:59 +0000 (+0100)
Subject: ARM: 6406/1: at91sam9g45: fix i2c bus speed
X-Git-Tag: v2.6.36-rc6~11^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1d5b4c0fa9ff79a4f01e5efc1caefd16b190a3dc;p=pandora-kernel.git

ARM: 6406/1: at91sam9g45: fix i2c bus speed

Use a correct udelay value to get bus speed around 100KHz. The udelay
value was most likely copied from the older devices, but the 9g45
is signicantly faster (400MHz, DDR, ..), so a udelay of 2 gives a
bus speed of around 190KHz, which is too fast for some devices.
A udelay value of 5 gives a bus speed of around 90KHz here.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

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