Re: [PATCH 10/13] dt-bindings: spi: add bindings for microchip mpfs spi

Geert Uytterhoeven
2021-11-09T08:46:02Z

Hi Conor,

On Mon, Nov 8, 2021 at 4:07 PM <conor.dooley@microchip.com> wrote:
> From: Conor Dooley <conor.dooley@microchip.com>
>
> Add device tree bindings for the {q,}spi controller on
> the Microchip PolarFire SoC.
>
> Signed-off-by: Conor Dooley <conor.dooley@microchip.com>

Thanks for your patch!

> --- /dev/null
> +++ b/Documentation/devicetree/bindings/spi/microchip,mpfs-spi.yaml
> @@ -0,0 +1,72 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/spi/microchip,mpfs-spi.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Microchip MPFS {Q,}SPI Controller Device Tree Bindings
> +
> +maintainers:
> + - Conor Dooley <conor.dooley@microchip.com>
> +
> +description: |
> + This {Q,}SPI controller is found on the Microchip PolarFire SoC.
> +
> +allOf:
> + - $ref: "spi-controller.yaml#"
> +
> +properties:
> + compatible:
> + enum:
> + - microchip,mpfs-spi
> + - microsemi,ms-pf-mss-spi
> + - microchip,mpfs-qspi
> + - microsemi,ms-pf-mss-qspi

Same comment as before: what are the ms-pf-mss entries?

> +examples:
> + - |
> + #include "dt-bindings/clock/microchip,mpfs-clock.h"
> + #include "dt-bindings/interrupt-controller/microchip,mpfs-plic.h"
> + soc {
> + #address-cells = <2>;
> + #size-cells = <2>;

Please drop these two...

> + spi0: spi@20108000 {
> + compatible = "microchip,mpfs-spi";
> + reg = <0x0 0x20108000 0x0 0x1000>;

... and the zeros here.

> + clocks = <&clkcfg CLK_SPI0>;
> + interrupt-parent = <&plic>;
> + interrupts = <PLIC_INT_SPI0>;
> + spi-max-frequency = <25000000>;
> + num-cs = <8>;
> + status = "disabled";

Please drop this.

> + };
> + };
> +...

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds