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Message-ID: <8cd3158b-ed51-4a1f-a626-fa58c85d4aeb@linaro.org>
Date: Tue, 26 Mar 2024 08:26:54 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Sebastian Reichel <sebastian.reichel@...labora.com>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>, Sebastian Reichel <sre@...nel.org>
Cc: Tony Lindgren <tony@...mide.com>, devicetree@...r.kernel.org,
linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] dt-bindings: hsi: omap-ssi: convert to YAML
On 25/03/2024 22:45, Sebastian Reichel wrote:
> Convert the legacy txt binding to modern YAML.
> No semantic change.
You deprecated a property: ti,hwmods. Also will be one more change:
ti,ssi-cawake-gpio->gpios
>
> Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
> ---
> Documentation/devicetree/bindings/hsi/omap-ssi.txt | 102 -----------
> .../devicetree/bindings/hsi/ti,omap-ssi.yaml | 196 +++++++++++++++++++++
> 2 files changed, 196 insertions(+), 102 deletions(-)
>
..
> diff --git a/Documentation/devicetree/bindings/hsi/ti,omap-ssi.yaml b/Documentation/devicetree/bindings/hsi/ti,omap-ssi.yaml
> new file mode 100644
> index 000000000000..eb82f85c25b6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hsi/ti,omap-ssi.yaml
> @@ -0,0 +1,196 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/hsi/ti,omap-ssi.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: SSI Controller on OMAP SoCs
> +
> +description:
> + OMAP3's Synchronous Serial Interface (SSI) controller implements a
> + legacy variant of MIPI's High Speed Synchronous Serial Interface (HSI),
> + while the controller found inside OMAP4 is supposed to be fully compliant
> + with the HSI standard.
> +
> +maintainers:
> + - Sebastian Reichel <sre@...nel.org>
> +
> +properties:
> + compatible:
> + enum:
> + - ti,omap3-ssi
> + - ti,omap4-hsi
> +
> + reg:
> + items:
> + - description: registers for sys
> + - description: registers for gdd
> +
> + reg-names:
> + items:
> + - const: sys
> + - const: gdd
> +
> + ranges: true
> +
> + "#address-cells":
> + const: 1
> +
> + "#size-cells":
> + const: 1
> +
> + clocks:
> + minItems: 1
> + maxItems: 3
> +
> + clock-names:
> + minItems: 1
> + maxItems: 3
> +
> + interrupts:
> + maxItems: 1
> +
> + interrupt-names:
> + const: gdd_mpu
> +
> + ti,hwmods:
> + const: ssi
> + deprecated: true
> +
> +patternProperties:
> + "[hs]si-port@[0-9a-f]+":
Does anything actually depends on the name? Can these be "port@[0-9a-f]+"?
> + type: object
> +
Drop blank line.
> + additionalProperties: false
> +
> + properties:
> + compatible:
> + enum:
> + - ti,omap3-ssi-port
> + - ti,omap4-hsi-port
> +
> + reg:
> + items:
> + - description: TX registers
> + - description: RX registers
> +
> + reg-names:
> + items:
> + - const: tx
> + - const: rx
> +
> + interrupts:
> + items:
> + - description: MPU interrupt 0
> + - description: MPU interrupt 1
> + minItems: 1
> +
> + ti,ssi-cawake-gpio:
ti,ssi-cawake-gpios
> + description: GPIO signifying CAWAKE events
> + maxItems: 1
> +
> + hsi-client:
> + type: object
On this level, should be explicit: additionalProperties: true
> + $ref: /schemas/hsi/hsi-client.yaml#
> +
> + required:
> + - compatible
> + - reg
> + - reg-names
> + - interrupts
> +
> + allOf:
> + - if:
> + properties:
> + compatible:
> + contains:
> + const: ti,omap3-ssi-port
> + then:
> + properties:
> + $nodename:
> + pattern: "^ssi-port@(.*)?$"
> + interrupts:
> + minItems: 2
> + else:
> + properties:
> + $nodename:
> + pattern: "^hsi-port@(.*)?$"
> + interrupts:
> + maxItems: 1
> +
> +additionalProperties: false
This goes after allOf: block
> +
> +required:
> + - compatible
> + - reg
> + - reg-names
> + - ranges
> + - "#address-cells"
> + - "#size-cells"
> + - clocks
> + - clock-names
> + - interrupts
> + - interrupt-names
> +
> +allOf:
> + - if:
> + properties:
> + compatible:
> + contains:
> + const: ti,omap3-ssi
> + then:
> + properties:
> + clocks:
> + minItems: 3
> + clock-names:
> + items:
> + - const: ssi_ssr_fck
> + - const: ssi_sst_fck
> + - const: ssi_ick
> + else:
> + properties:
> + clocks:
> + maxItems: 1
> + clock-names:
> + items:
> + - const: hsi_fck
> +
> +examples:
> + - |
> + #include <dt-bindings/gpio/gpio.h>
> + ssi-controller@...58000 {
> + compatible = "ti,omap3-ssi";
> + reg = <0x48058000 0x1000>,
> + <0x48059000 0x1000>;
> + reg-names = "sys", "gdd";
> + ranges;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + clocks = <&ssi_ssr_fck>,
> + <&ssi_sst_fck>,
> + <&ssi_ick>;
> + clock-names = "ssi_ssr_fck",
> + "ssi_sst_fck",
> + "ssi_ick";
> + interrupts = <55>;
> + interrupt-names = "gdd_mpu";
> +
> + ssi-port@...5a000 {
> + compatible = "ti,omap3-ssi-port";
Use 4 spaces for example indentation.
> + reg = <0x4805a000 0x800>,
Best regards,
Krzysztof
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