From 4c6b69db55451aad7133ecefe6215a61c1b01d91 Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 29 Nov 2016 20:06:44 +0000 Subject: 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 --- arch/arm/boot/dts/armada-388-clearfog.dtsi | 7 ++----- 1 file 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 { -- cgit