linux-kernel - Re: [PATCH 4/6] dt-bindings: phy: mediatek: tphy: support software efuse load

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Date:   Mon, 22 Nov 2021 09:21:08 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     Chen-Yu Tsai <wenst@...omium.org>, Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...com>
Cc:     Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-phy@...ts.infradead.org,
        Eddie Hung <eddie.hung@...iatek.com>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Yz Wu <yz.wu@...iatek.com>
Subject: Re: [PATCH 4/6] dt-bindings: phy: mediatek: tphy: support software
 efuse load

On 22/11/2021 04:05, Chen-Yu Tsai wrote:
> On Sat, Nov 20, 2021 at 1:19 AM Srinivas Kandagatla
> <srinivas.kandagatla@...aro.org> wrote:
>> On 07/11/2021 07:56, Chunfeng Yun wrote:
>>> Add optional property nvmem-cells and nvmem-cell-names to support
>>> software efuse load, this helps to fix the efuse bit shift issue
>>> on mt8195 etc.
>>>
>>> Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
>>
>> Applied thanks,
> 
> This is a PHY DT binding change. Shouldn't it go in with patch 5, the
> phy driver patch, through the PHY tree instead?

That's true, this is dropped from nvmem tree now!

--srini
> 
> ChenYu
> 
>> --srini
>>
>>> ---
>>>    .../devicetree/bindings/phy/mediatek,tphy.yaml | 18 ++++++++++++++++++
>>>    1 file changed, 18 insertions(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml b/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml
>>> index 9e6c0f43f1c6..05ee274b4b71 100644
>>> --- a/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml
>>> +++ b/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml
>>> @@ -160,6 +160,24 @@ patternProperties:
>>>                    - PHY_TYPE_PCIE
>>>                    - PHY_TYPE_SATA
>>>
>>> +      nvmem-cells:
>>> +        items:
>>> +          - description: internal R efuse for U2 PHY or U3/PCIe PHY
>>> +          - description: rx_imp_sel efuse for U3/PCIe PHY
>>> +          - description: tx_imp_sel efuse for U3/PCIe PHY
>>> +        description: |
>>> +          Phandles to nvmem cell that contains the efuse data;
>>> +          Available only for U2 PHY or U3/PCIe PHY of version 2/3, these
>>> +          three items should be provided at the same time for U3/PCIe PHY,
>>> +          when use software to load efuse;
>>> +          If unspecified, will use hardware auto-load efuse.
>>> +
>>> +      nvmem-cell-names:
>>> +        items:
>>> +          - const: intr
>>> +          - const: rx_imp
>>> +          - const: tx_imp
>>> +
>>>          # The following optional vendor properties are only for debug or HQA test
>>>          mediatek,eye-src:
>>>            description:
>>>
>>
>> _______________________________________________
>> Linux-mediatek mailing list
>> Linux-mediatek@...ts.infradead.org
>> http://lists.infradead.org/mailman/listinfo/linux-mediatek

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