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SubjectRe: [PATCH 2/2] ARM: dts: TS-7970: add basic device tree
Hi Sebastien,

On Mon, Nov 20, 2017 at 7:15 PM, Sebastien Bourdelin
<sebastien.bourdelin@savoirfairelinux.com> 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.
*/

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