summaryrefslogtreecommitdiffstats
path: root/Documentation
diff options
context:
space:
mode:
authorGregory CLEMENT <gregory.clement@free-electrons.com>2013-06-21 15:32:06 +0200
committerWolfram Sang <wsa@the-dreams.de>2013-06-25 23:43:37 +0200
commit4c730a06c19bb83d2fa4308ee4cbb23abc84c9ca (patch)
tree756a378f3e7ec8fae98aed6ab79631bb5bd914a9 /Documentation
parent2f641a8bdb1b808b9bf1d0ca7d169d199aaf6ff4 (diff)
downloadop-kernel-dev-4c730a06c19bb83d2fa4308ee4cbb23abc84c9ca.zip
op-kernel-dev-4c730a06c19bb83d2fa4308ee4cbb23abc84c9ca.tar.gz
i2c: mv64xxx: Set bus frequency to 100kHz if clock-frequency is not provided
This commit adds checking whether clock-frequency property acquisition has succeeded. If not, the frequency is set to 100kHz by default. The Device Tree binding documentation is updated accordingly. Based on the intials 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')
-rw-r--r--Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt6
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt b/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
index f46d928..a1ee681 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
@@ -6,7 +6,11 @@ Required properties :
- reg : Offset and length of the register set for the device
- compatible : Should be "marvell,mv64xxx-i2c"
- interrupts : The interrupt number
- - clock-frequency : Desired I2C bus clock frequency in Hz.
+
+Optional properties :
+
+ - clock-frequency : Desired I2C bus clock frequency in Hz. If not set the
+default frequency is 100kHz
Examples:
OpenPOWER on IntegriCloud