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| author |   Gregory CLEMENT <gregory.clement@free-electrons.com> | 2013-08-22 16:19:06 +0200 |
|---|---|---|
| committer |   Wolfram Sang <wsa@the-dreams.de> | 2013-08-23 10:15:51 +0200 |
| commit | c1d15b68aab86f1f3b602fa65e7618c0065d46e6 (patch) | |
| tree | 929537c122d396ce4e763b1e73a199a64eb70663 /Documentation/acpi | |
| parent | i2c: mv64xxx: Add I2C Transaction Generator support (diff) | |
| download | linux-dev-c1d15b68aab86f1f3b602fa65e7618c0065d46e6.tar.xz linux-dev-c1d15b68aab86f1f3b602fa65e7618c0065d46e6.zip | |
i2c: mv64xxx: Fix timing issue on Armada XP (errata FE-8471889)
All the Armada XP (mv78230, mv78260 and mv78460) have a silicon issue
in the I2C controller which violate the i2c repeated start
timing. The I2C standard requires a minimum of 4.7us for the repeated
start condition whereas the I2C controller of the Armada XP this time
is 2.9us.
So this patch adds a 5us delay for the start case only if the
the compatible i2c-mv78230 is set.
Based on the initals patches from Zbigniew Bodek
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Zbigniew Bodek <zbb@semihalf.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'Documentation/acpi')
0 files changed, 0 insertions, 0 deletions