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Message-ID: <4c849bc5-979f-4f78-bb46-50b93f087d9f@quicinc.com>
Date: Mon, 4 Nov 2024 19:01:30 +0800
From: Lei Wei <quic_leiwei@...cinc.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
CC: "David S. Miller" <davem@...emloft.net>,
Eric Dumazet
<edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni
<pabeni@...hat.com>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski
<krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Andrew Lunn
<andrew@...n.ch>,
Heiner Kallweit <hkallweit1@...il.com>,
Russell King
<linux@...linux.org.uk>, <netdev@...r.kernel.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<quic_kkumarcs@...cinc.com>, <quic_suruchia@...cinc.com>,
<quic_pavir@...cinc.com>, <quic_linchen@...cinc.com>,
<quic_luoj@...cinc.com>, <srinivas.kandagatla@...aro.org>,
<bartosz.golaszewski@...aro.org>, <vsmuthu@....qualcomm.com>,
<john@...ozen.org>
Subject: Re: [PATCH net-next 1/5] dt-bindings: net: pcs: Add Ethernet PCS for
Qualcomm IPQ9574 SoC
On 11/2/2024 9:34 PM, Krzysztof Kozlowski wrote:
> On Fri, Nov 01, 2024 at 06:32:49PM +0800, Lei Wei wrote:
>> The 'UNIPHY' PCS block in the IPQ9574 SoC includes PCS and SerDes
>> functions. It supports different interface modes to enable Ethernet
>> MAC connections to different types of external PHYs/switch. It includes
>> PCS functions for 1Gbps and 2.5Gbps interface modes and XPCS functions
>> for 10Gbps interface modes. There are three UNIPHY (PCS) instances
>> in IPQ9574 SoC which provide PCS/XPCS functions to the six Ethernet
>> ports.
>>
>> Signed-off-by: Lei Wei <quic_leiwei@...cinc.com>
>> ---
>> .../bindings/net/pcs/qcom,ipq9574-pcs.yaml | 230 +++++++++++++++++++++
>> include/dt-bindings/net/pcs-qcom-ipq.h | 15 ++
>> 2 files changed, 245 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/net/pcs/qcom,ipq9574-pcs.yaml b/Documentation/devicetree/bindings/net/pcs/qcom,ipq9574-pcs.yaml
>> new file mode 100644
>> index 000000000000..a33873c7ad73
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/net/pcs/qcom,ipq9574-pcs.yaml
>> @@ -0,0 +1,230 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/net/pcs/qcom,ipq9574-pcs.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Ethernet PCS for Qualcomm IPQ SoC
>
> s/IPQ/IPQ9574/
>
OK, will update.
>> +
>> +maintainers:
>> + - Lei Wei <quic_leiwei@...cinc.com>
>
> ...
>
>> + const: 0
>> +
>> + clocks:
>> + items:
>> + - description: system clock
>> + - description: AHB clock needed for register interface access
>> +
>> + clock-names:
>> + items:
>> + - const: sys
>> + - const: ahb
>> +
>> + '#clock-cells':
>
> Use consistent quotes, either ' or "
>
OK, will use single quotes ' everywhere.
>> + const: 1
>> + description: See include/dt-bindings/net/pcs-qcom-ipq.h for constants
>> +
>> +patternProperties:
>> + "^pcs-mii@[0-4]$":
>> + type: object
>> + description: PCS MII interface.
>> +
>> + properties:
>> + reg:
>> + minimum: 0
>> + maximum: 4
>> + description: MII index
>> +
>> + clocks:
>> + items:
>> + - description: PCS MII RX clock
>> + - description: PCS MII TX clock
>> +
>> + clock-names:
>> + items:
>> + - const: mii_rx
>
> rx
>
OK.
>> + - const: mii_tx
>
> tx
OK.
>
>> +
>> + required:
>> + - reg
>> + - clocks
>> + - clock-names
>> +
>> + additionalProperties: false
>> +
>> +required:
>> + - compatible
>> + - reg
>> + - '#address-cells'
>> + - '#size-cells'
>> + - clocks
>> + - clock-names
>> + - '#clock-cells'
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> + - |
>> + #include <dt-bindings/clock/qcom,ipq9574-gcc.h>
>> +
>> + pcs0: ethernet-pcs@...0000 {
>
> Drop unused labels here and further.
>
OK, will drop the unused labels "pcs0" and "pcs0_miiX".
>> + compatible = "qcom,ipq9574-pcs";
>> + reg = <0x7a00000 0x10000>;
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + clocks = <&gcc GCC_UNIPHY0_SYS_CLK>,
>> + <&gcc GCC_UNIPHY0_AHB_CLK>;
>> + clock-names = "sys",
>> + "ahb";
>> + #clock-cells = <1>;
>> +
>> + pcs0_mii0: pcs-mii@0 {
>> + reg = <0>;
>> + clocks = <&nsscc 116>,
>> + <&nsscc 117>;
>> + clock-names = "mii_rx",
>> + "mii_tx";
>> + };
>> +
>> + pcs0_mii1: pcs-mii@1 {
>> + reg = <1>;
>> + clocks = <&nsscc 118>,
>> + <&nsscc 119>;
>> + clock-names = "mii_rx",
>> + "mii_tx";
>> + };
>> +
>> + pcs0_mii2: pcs-mii@2 {
>> + reg = <2>;
>> + clocks = <&nsscc 120>,
>> + <&nsscc 121>;
>> + clock-names = "mii_rx",
>> + "mii_tx";
>> + };
>> +
>> + pcs0_mii3: pcs-mii@3 {
>> + reg = <3>;
>> + clocks = <&nsscc 122>,
>> + <&nsscc 123>;
>> + clock-names = "mii_rx",
>> + "mii_tx";
>> + };
>> + };
>> +
>> + pcs1: ethernet-pcs@...0000 {
>
> One example is enough, drop the rest.
>
OK.
>> + compatible = "qcom,ipq9574-pcs";
>> + reg = <0x7a10000 0x10000>;
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + clocks = <&gcc GCC_UNIPHY1_SYS_CLK>,
>> + <&gcc GCC_UNIPHY1_AHB_CLK>;
>> + clock-names = "sys",
>> + "ahb";
>> + #clock-cells = <1>;
>> +
>> + pcs1_mii0: pcs-mii@0 {
>> + reg = <0>;
>> + clocks = <&nsscc 124>,
>> + <&nsscc 125>;
>> + clock-names = "mii_rx",
>> + "mii_tx";
>> + };
>> + };
>> +
>> + pcs2: ethernet-pcs@...0000 {
>> + compatible = "qcom,ipq9574-pcs";
>> + reg = <0x7a20000 0x10000>;
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + clocks = <&gcc GCC_UNIPHY2_SYS_CLK>,
>> + <&gcc GCC_UNIPHY2_AHB_CLK>;
>> + clock-names = "sys",
>> + "ahb";
>> + #clock-cells = <1>;
>> +
>> + pcs2_mii0: pcs-mii@0 {
>> + reg = <0>;
>> + clocks = <&nsscc 126>,
>> + <&nsscc 127>;
>> + clock-names = "mii_rx",
>> + "mii_tx";
>> + };
>> + };
>> diff --git a/include/dt-bindings/net/pcs-qcom-ipq.h b/include/dt-bindings/net/pcs-qcom-ipq.h
>> new file mode 100644
>> index 000000000000..8d9124ffd75d
>> --- /dev/null
>> +++ b/include/dt-bindings/net/pcs-qcom-ipq.h
>
> Filename matching exactly binding filename.
>
OK.
> Best regards,
> Krzysztof
>
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