diff options
author | Russell King <rmk+kernel@armlinux.org.uk> | 2016-11-29 20:06:44 +0000 |
---|---|---|
committer | Russell King <rmk+kernel@armlinux.org.uk> | 2017-01-05 22:57:29 +0000 |
commit | 46d963450400eebf60a8c3568aa6ccaf4516bcff (patch) | |
tree | 021d30c8ffa63b52df874e300dbf3dacdd913519 | |
parent | 4fcc7ed828f73e2954a74393ecadd89063fd9ac7 (diff) |
ARM: dts: armada388-clearfog: increase speed of i2c0 to 400kHz
All the devices on I2C0 support fast mode, so increase the bus speed
to match. The Armada 388 is known to have a timing issue when in
standard mode, which we believe causes the ficticious device at 0x64
to appear.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
-rw-r--r-- | arch/arm/boot/dts/armada-388-clearfog.dtsi | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/arch/arm/boot/dts/armada-388-clearfog.dtsi b/arch/arm/boot/dts/armada-388-clearfog.dtsi index 0f5938bede53..bbed24f616f9 100644 --- a/arch/arm/boot/dts/armada-388-clearfog.dtsi +++ b/arch/arm/boot/dts/armada-388-clearfog.dtsi @@ -143,8 +143,7 @@ }; &i2c0 { - /* Is there anything on this? */ - clock-frequency = <100000>; + clock-frequency = <400000>; pinctrl-0 = <&i2c0_pins>; pinctrl-names = "default"; status = "okay"; @@ -239,13 +238,11 @@ }; }; - /* The MCP3021 is 100kHz clock only */ + /* The MCP3021 supports standard and fast modes */ mikrobus_adc: mcp3021@4c { compatible = "microchip,mcp3021"; reg = <0x4c>; }; - - /* Also something at 0x64 */ }; &i2c1 { |