On Mon, May 28, 2018 at 11:14:07PM +0300, Sergei Shtylyov wrote:
> Define the Condor board dependent part of the I2C0 device node.
>
> The I2C0 bus is populated by 2 ON Semiconductor PCA9654 I/O expanders
> and Analog Devices ADV7511W HDMI transmitter (but we're only describing
> the former chips now).
>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>
>
> ---
> arch/arm64/boot/dts/renesas/r8a77980-condor.dts | 27 ++++++++++++++++++++++++
> 1 file changed, 27 insertions(+)
>
> Index: renesas/arch/arm64/boot/dts/renesas/r8a77980-condor.dts
> ===================================================================
> --- renesas.orig/arch/arm64/boot/dts/renesas/r8a77980-condor.dts
> +++ renesas/arch/arm64/boot/dts/renesas/r8a77980-condor.dts
> @@ -80,6 +80,28 @@
> clock-frequency = <32768>;
> };
>
> +&i2c0 {
> + pinctrl-0 = <&i2c0_pins>;
> + pinctrl-names = "default";
> +
> + status = "okay";
> + clock-frequency = <400000>;
> +
> + io_expander0: gpio@20 {
Hi Sergei,
I'm a little confused about where 0x20 and 0x21 are derived from.
Could you explain a little?
> + compatible = "onnn,pca9654";
> + reg = <0x20>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + };
> +
> + io_expander1: gpio@21 {
> + compatible = "onnn,pca9654";
> + reg = <0x21>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + };
> +};
> +
> &mmc0 {
> pinctrl-0 = <&mmc_pins>;
> pinctrl-1 = <&mmc_pins_uhs>;
> @@ -104,6 +126,11 @@
> function = "canfd0";
> };
>
> + i2c0_pins: i2c0 {
> + groups = "i2c0";
> + function = "i2c0";
> + };
> +
> mmc_pins: mmc {
> groups = "mmc_data8", "mmc_ctrl", "mmc_ds";
> function = "mmc";
>
