[PATCH 2/5 v3] ARM: at91: sam9g20 add i2c DT support
From: Jean-Christophe PLAGNIOL-VILLARD <hidden>
Date: 2012-03-08 08:50:32
Also in:
linux-devicetree
Subsystem:
the rest · Maintainer:
Linus Torvalds
Possibly related (same subject, not in this thread)
- 2012-03-13 · Re: [PATCH 2/5 v3] ARM: at91: sam9g20 add i2c DT support · Jean-Christophe PLAGNIOL-VILLARD <hidden>
- 2012-03-09 · Re: [PATCH 2/5 v3] ARM: at91: sam9g20 add i2c DT support · Rob Herring <hidden>
- 2012-03-09 · Re: [PATCH 2/5 v3] ARM: at91: sam9g20 add i2c DT support · Jean-Christophe PLAGNIOL-VILLARD <hidden>
- 2012-03-09 · Re: [PATCH 2/5 v3] ARM: at91: sam9g20 add i2c DT support · Jean-Christophe PLAGNIOL-VILLARD <hidden>
- 2012-03-09 · Re: [PATCH 2/5 v3] ARM: at91: sam9g20 add i2c DT support · Grant Likely <hidden>
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/at91sam9g20.dtsi | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/at91sam9g20.dtsi b/arch/arm/boot/dts/at91sam9g20.dtsi
index 4b0dc99..072b2da 100644
--- a/arch/arm/boot/dts/at91sam9g20.dtsi
+++ b/arch/arm/boot/dts/at91sam9g20.dtsi@@ -189,4 +189,17 @@ status = "disabled"; }; }; + + i2c-gpio at 0 { + compatible = "i2c-gpio"; + gpios = <&pioA 23 0 /* sda */ + &pioA 24 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"; + }; };
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1.7.7