Thread (14 messages) 14 messages, 2 authors, 2025-09-03

RE: [PATCH v4 1/6] dt-bindings: phy: ti,tcan104x-can: Document NXP TJA105X/1048

From: Peng Fan <peng.fan@nxp.com>
Date: 2025-09-03 06:49:51
Also in: imx, linux-arm-kernel, linux-can, linux-devicetree, lkml

Subject: RE: [PATCH v4 1/6] dt-bindings: phy: ti,tcan104x-can:
Document NXP TJA105X/1048
...
Thanks again for the detailed reading into datasheet.

Yes. But I would like to only keep one compatible "nxp,tja1051" from a
board design level, EN could be always tied to high for TJA1051T/E. So
to dt-binding, EN it is optional for all TJA1051 variants.

I am thinking to use below compatible in V4 for the devices added in
this patch. Does this look good to you?

      - items:
          - const: nxp,tja1057
          - const: nxp,tja1051
      - enum:
          ....
          - nxp,tja1048
          - nxp,tja1051
Considering TJA1057 does not have EN, I may need to use:
      - enum:                                                                                       
          ....
          - nxp,tja1048                                                                             
          - nxp,tja1051                                                                             
          - nxp,tja1057                                                                             
         ....

Thanks,
Peng.
          ....
quoted
quoted
If we need to handle differently, I need to add a new optional
property

silent-gpios:
  description:
    gpio node to toggle silent signal on transceiver
  minItems: 1
Ye, I think so. And probably add some if/then to use it instead of
standby on the relevant chips.
Yes. Agree.

Thanks,
Peng.

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