[PATCH 4/5] arm: shmobile: genmai: adapt dts to use native i2c driver
Sergei Shtylyov
sergei.shtylyov at cogentembedded.com
Wed Dec 18 06:41:38 EST 2013
Hello.
On 18-12-2013 1:44, Wolfram Sang wrote:
> From: Wolfram Sang <wsa at sang-engineering.com>
> Switch from the gpio-driver to the shiny new native driver. Tested by
> accessing the eeprom on the genmai board.
> Signed-off-by: Wolfram Sang <wsa at sang-engineering.com>
> Acked-by: Magnus Damm <damm at opensource.se>
> ---
> arch/arm/boot/dts/r7s72100-genmai-reference.dts | 29 ++++++++++---------------
> 1 file changed, 11 insertions(+), 18 deletions(-)
> diff --git a/arch/arm/boot/dts/r7s72100-genmai-reference.dts b/arch/arm/boot/dts/r7s72100-genmai-reference.dts
> index ce5da0b..739448a 100644
> --- a/arch/arm/boot/dts/r7s72100-genmai-reference.dts
> +++ b/arch/arm/boot/dts/r7s72100-genmai-reference.dts
> @@ -39,24 +39,6 @@
> gpios = <&port4 11 GPIO_ACTIVE_LOW>;
> };
> };
> -
> - i2c at 0 {
> - compatible = "i2c-gpio";
> - gpios = <&port1 5 GPIO_ACTIVE_HIGH /* sda */
> - &port1 4 GPIO_ACTIVE_HIGH /* scl */
> - >;
> - i2c-gpio,sda-open-drain;
> - i2c-gpio,scl-open-drain;
> - i2c-gpio,delay-us = <5>; /* ~100 kHz */
> - #address-cells = <1>;
> - #size-cells = <0>;
> -
> - flash at 50 {
> - compatible = "renesas,24c128";
> - reg = <0x50>;
> - pagesize = <64>;
> - };
> - };
> };
>
> &pfc {
> @@ -68,3 +50,14 @@
> renesas,function = "scif2";
> };
> };
> +
> +&i2c2 {
> + status = "okay";
> + clock-frequency = <400000>;
> +
> + eeprom: 24c128 at 50 {
The node was called "flash at 50" for a reason: according to ePAPR spec, for
node names the generic device names should be used, not chip-specific.
> + compatible = "renesas,24c128";
> + reg = <0x50>;
> + pagesize = <64>;
> + };
> +};
WBR, Sergei
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