[PATCH 5/5 v3] ARM: at91: sam9x5 add i2c DT support
From: Jean-Christophe PLAGNIOL-VILLARD <hidden>
Date: 2012-03-08 08:50:35
Also in:
linux-devicetree
Subsystem:
the rest · Maintainer:
Linus Torvalds
For now on use i2c-gpio driver on the same pin as the hardware IP. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <redacted> Cc: Nicolas Ferre <redacted> Cc: devicetree-discuss at lists.ozlabs.org --- v3: update i2c binding (Rob comments) Best Regards, J. arch/arm/boot/dts/at91sam9x5.dtsi | 39 +++++++++++++++++++++++++++++++++++++ 1 files changed, 39 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index c294657..fdd1ac6 100644
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi@@ -188,4 +188,43 @@ status = "disabled"; }; }; + + i2c-gpio at 0 { + compatible = "i2c-gpio"; + gpios = <&pioA 30 0 /* sda */ + &pioA 31 0 /* scl */ + >; + i2c-gpio,sda-open-drain; + i2c-gpio,scl-open-drain; + i2c-gpio,delay-us = <2>; /* ~100 kHz */ + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + + i2c-gpio at 1 { + compatible = "i2c-gpio"; + gpios = <&pioC 0 0 /* sda */ + &pioC 1 0 /* scl */ + >; + i2c-gpio,sda-open-drain; + i2c-gpio,scl-open-drain; + i2c-gpio,delay-us = <2>; /* ~100 kHz */ + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + + i2c-gpio at 2 { + compatible = "i2c-gpio"; + gpios = <&pioB 4 0 /* sda */ + &pioB 5 0 /* scl */ + >; + i2c-gpio,sda-open-drain; + i2c-gpio,scl-open-drain; + i2c-gpio,delay-us = <2>; /* ~100 kHz */ + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; };
--
1.7.7