On 22:26 Thu 08 Mar , Grant Likely wrote: > On Thu, 8 Mar 2012 09:50:32 +0100, Jean-Christophe PLAGNIOL-VILLARD > <[email protected]> wrote: > > For now on use i2c-gpio driver on the same pin as the hardware IP. > > > > Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <[email protected]> > > Cc: Nicolas Ferre <[email protected]> > > Cc: [email protected] > > --- > > 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@0 { > > i2c@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"; > > + }; > > gpio-driven i2c busses are inherently board-specific. Why is this > in the SoC include file? because they use the hw pin and all board will use the same as on some soc (old) we can not use the hw IP > > Otherwise I think this patch series looks okay.
Best Regards, J. _______________________________________________ devicetree-discuss mailing list [email protected] https://lists.ozlabs.org/listinfo/devicetree-discuss
