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- From 6e127081e669cf163a818dc04d590790e4ed9527 Mon Sep 17 00:00:00 2001
- From: Russell King <rmk+kernel@armlinux.org.uk>
- 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 <rmk+kernel@armlinux.org.uk>
- ---
- arch/arm/boot/dts/armada-388-clearfog.dtsi | 7 ++-----
- 1 file changed, 2 insertions(+), 5 deletions(-)
- --- 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 {
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