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Date: Tue, 25 Oct 2022 17:52:48 -0500
From: Rob Herring <robh@...nel.org>
To: Lorenzo Bianconi <lorenzo@...nel.org>
Cc: netdev@...r.kernel.org, nbd@....name, john@...ozen.org,
sean.wang@...iatek.com, Mark-MC.Lee@...iatek.com,
davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
pabeni@...hat.com, matthias.bgg@...il.com,
linux-mediatek@...ts.infradead.org, lorenzo.bianconi@...hat.com,
Bo.Jiao@...iatek.com, sujuan.chen@...iatek.com,
ryder.Lee@...iatek.com, evelyn.tsai@...iatek.com,
devicetree@...r.kernel.org, daniel@...rotopia.org
Subject: Re: [PATCH v2 net-next 2/6] dt-bindings: net: mediatek: add WED RX
binding for MT7986 eth driver
On Sun, Oct 23, 2022 at 08:28:06PM +0200, Lorenzo Bianconi wrote:
> Document the binding for the RX Wireless Ethernet Dispatch core on the
> MT7986 ethernet driver used to offload traffic received by WLAN NIC and
> forwarded to LAN/WAN one.
>
> Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
> ---
> .../arm/mediatek/mediatek,mt7622-wed.yaml | 91 +++++++++++++++++++
> .../arm/mediatek/mediatek,mt7986-wo-boot.yaml | 46 ++++++++++
> .../arm/mediatek/mediatek,mt7986-wo-ccif.yaml | 49 ++++++++++
> .../arm/mediatek/mediatek,mt7986-wo-dlm.yaml | 50 ++++++++++
> 4 files changed, 236 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-boot.yaml
> create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-ccif.yaml
> create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-dlm.yaml
>
> diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml
> index 84fb0a146b6e..8e2905004790 100644
> --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml
> +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml
> @@ -29,6 +29,41 @@ properties:
> interrupts:
> maxItems: 1
>
> + memory-region:
> + minItems: 3
> + maxItems: 3
What is each entry? Need to define them.
> + description:
> + phandles to nodes describing reserved memory used by mt7986-wed firmware
> + (see bindings/reserved-memory/reserved-memory.txt)
What does that document say?
(You don't need generic descriptions/refs of common properties)
> +
> + mediatek,wo-ccif:
> + $ref: /schemas/types.yaml#/definitions/phandle
> + description:
> + Phandle to the mediatek wed-wo controller.
> +
> + mediatek,wo-boot:
> + $ref: /schemas/types.yaml#/definitions/phandle
> + description:
> + Phandle to the mediatek wed-wo boot interface.
> +
> + mediatek,wo-dlm:
> + $ref: /schemas/types.yaml#/definitions/phandle
> + description:
> + Phandle to the mediatek wed-wo rx hw ring.
> +
> +allOf:
> + - if:
> + properties:
> + compatible:
> + contains:
> + const: mediatek,mt7986-wed
> + then:
> + properties:
> + mediatek,wo-boot: true
> + mediatek,wo-ccif: true
> + mediatek,wo-dlm: true
> + memory-region: true
This does nothing. You need the opposite? Disallow these properties for
7622?
> +
> required:
> - compatible
> - reg
> @@ -49,3 +84,59 @@ examples:
> interrupts = <GIC_SPI 214 IRQ_TYPE_LEVEL_LOW>;
> };
> };
> +
> + - |
Why a new example?
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + #include <dt-bindings/interrupt-controller/irq.h>
> + soc {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + reserved-memory {
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + wo_emi: wo-emi@...00000 {
> + reg = <0 0x4fd00000 0 0x40000>;
> + no-map;
> + };
> +
> + wo_data: wo-data@...80000 {
> + reg = <0 0x4fd80000 0 0x240000>;
> + no-map;
> + };
> +
> + wo_ilm: wo-ilm@...e0000 {
> + reg = <0 0x151e0000 0 0x8000>;
> + no-map;
> + };
> + };
Don't need to show /reserved-memory in examples.
> +
> + wo_boot: wo-boot@...94000 {
> + compatible = "mediatek,mt7986-wo-boot","syscon";
> + reg = <0 0x15194000 0 0x1000>;
> + };
> +
> + wo_ccif0: wo-ccif@...a5000 {
> + compatible = "mediatek,mt7986-wo-ccif","syscon";
> + reg = <0 0x151a5000 0 0x1000>;
> + interrupts = <GIC_SPI 211 IRQ_TYPE_LEVEL_HIGH>;
> + };
Don't really need to show these either. You already have them in their
own schemas and we don't need 2 examples.
Didn't I already say this?
> +
> + wo_dlm0: wo-dlm@...e8000 {
> + compatible = "mediatek,mt7986-wo-dlm";
> + reg = <0 0x151e8000 0 0x2000>;
> + resets = <ðsysrst 0>;
> + reset-names = "wocpu_rst";
> + };
> +
> + wed1: wed@...0a000 {
> + compatible = "mediatek,mt7986-wed","syscon";
> + reg = <0 0x15010000 0 0x1000>;
> + interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
> +
> + memory-region = <&wo_emi>, <&wo_data>, <&wo_ilm>;
> + mediatek,wo-ccif = <&wo_ccif0>;
> + mediatek,wo-boot = <&wo_boot>;
> + mediatek,wo-dlm = <&wo_dlm0>;
> + };
> + };
> diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-boot.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-boot.yaml
> new file mode 100644
> index 000000000000..ce9c971e6604
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-boot.yaml
> @@ -0,0 +1,46 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/arm/mediatek/mediatek,mt7986-wo-boot.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title:
> + MediaTek Wireless Ethernet Dispatch WO boot controller interface for MT7986
> +
> +maintainers:
> + - Lorenzo Bianconi <lorenzo@...nel.org>
> + - Felix Fietkau <nbd@....name>
> +
> +description:
> + The mediatek wo-boot provides a configuration interface for WED WO
> + boot controller on MT7986 soc.
> +
> +properties:
> + compatible:
> + items:
> + - enum:
> + - mediatek,mt7986-wo-boot
> + - const: syscon
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + soc {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + wo_boot: wo-boot@...94000 {
> + compatible = "mediatek,mt7986-wo-boot","syscon";
> + reg = <0 0x15194000 0 0x1000>;
> + };
> + };
> diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-ccif.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-ccif.yaml
> new file mode 100644
> index 000000000000..48cb27bcc4cd
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-ccif.yaml
> @@ -0,0 +1,49 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/arm/mediatek/mediatek,mt7986-wo-ccif.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: MediaTek Wireless Ethernet Dispatch WO Controller for MT7986
> +
> +maintainers:
> + - Lorenzo Bianconi <lorenzo@...nel.org>
> + - Felix Fietkau <nbd@....name>
> +
> +description:
> + The mediatek wo-ccif provides a configuration interface for WED WO
> + controller on MT7986 soc.
> +
> +properties:
> + compatible:
> + items:
> + - enum:
> + - mediatek,mt7986-wo-ccif
> + - const: syscon
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + #include <dt-bindings/interrupt-controller/irq.h>
> + soc {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + wo_ccif0: wo-ccif@...a5000 {
> + compatible = "mediatek,mt7986-wo-ccif","syscon";
> + reg = <0 0x151a5000 0 0x1000>;
> + interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
> + };
> + };
> diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-dlm.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-dlm.yaml
> new file mode 100644
> index 000000000000..db9252598a42
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wo-dlm.yaml
> @@ -0,0 +1,50 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/arm/mediatek/mediatek,mt7986-wo-dlm.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: MediaTek Wireless Ethernet Dispatch WO hw rx ring interface for MT7986
> +
> +maintainers:
> + - Lorenzo Bianconi <lorenzo@...nel.org>
> + - Felix Fietkau <nbd@....name>
> +
> +description:
> + The mediatek wo-dlm provides a configuration interface for WED WO
> + rx ring on MT7986 soc.
> +
> +properties:
> + compatible:
> + const: mediatek,mt7986-wo-dlm
> +
> + reg:
> + maxItems: 1
> +
> + resets:
> + maxItems: 1
> +
> + reset-names:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> + - resets
> + - reset-names
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + soc {
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + wo_dlm0: wo-dlm@...e8000 {
> + compatible = "mediatek,mt7986-wo-dlm";
> + reg = <0 0x151e8000 0 0x2000>;
> + resets = <ðsysrst 0>;
> + reset-names = "wocpu_rst";
> + };
> + };
> --
> 2.37.3
>
>
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