Re: [PATCH 2/2] ARM: dts: TS-7970: add basic device tree

[Fabio Estevam]

Hi Sebastien,

On Mon, Nov 20, 2017 at 7:15 PM, Sebastien Bourdelin
<sebastien.bourdelin@xxxxxxxxxxxxxxxxxxxx> wrote:

> +&ecspi2 {
> +       cs-gpios = <
> +               &gpio5 31 GPIO_ACTIVE_HIGH
> +               &gpio7 12 GPIO_ACTIVE_HIGH
> +               &gpio5 18 GPIO_ACTIVE_HIGH
> +       >;
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&pinctrl_ecspi2>;
> +       status = "okay";
> +
> +       spidevfpga: spi@1 {
> +               compatible = "spidev";
> +               reg = <1>;
> +               spi-max-frequency = <1000000>;

According to drivers/spi/spidev.c:

/*
* spidev should never be referenced in DT without a specific
* compatible string, it is a Linux implementation thing
* rather than a description of the hardware.
*/