[PATCH 2/5 v3] ARM: at91: sam9g20 add i2c DT support
Rob Herring
robherring2 at gmail.com
Fri Mar 9 04:08:11 EST 2012
On 03/08/2012 02:50 AM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> For now on use i2c-gpio driver on the same pin as the hardware IP.
>
> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
> Cc: Nicolas Ferre <nicolas.ferre at atmel.com>
> 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 {
You updated the example, but not all the actual uses to i2c at 0.
Rob
> + 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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