Re: [PATCH net-next v4 4/5] ptp: ocp: Add R4006 I2C peripheral topology

> R4006 cards place a PCA9546 mux behind the FPGA I2C controller.
> The mux exposes three LM75B temperature sensors, an SHT3x humidity
> sensor, an ICP10100 pressure sensor, and an IS32FL3207 controller for
> the GNSS and SMA LEDs.
> 
> Describe the per-card topology with software nodes and instantiate
> standard I2C clients after their adapters appear. Keep the mux channel,
> RISET value, and per-output current limit in the board profile, and
> validate every profile index before constructing nodes.
> 
> Select the profile only on supported Time Card PCI devices whose
> fixed-width EEPROM ID contains printable text, valid zero or 0xff
> padding, and an R4006 prefix. Leave erased, malformed, and unknown IDs
> unconfigured without changing the EEPROM data.
> 
> Leave the channel containing the BNO08x empty because no upstream
> driver exists. Serialize topology changes with a private mutex and
> stable device references. Retry transient setup failures, report
> exhaustion once, and continue low-rate recovery so late adapter or
> client availability can still complete setup.
> 
> Signed-off-by: Ahmad Byagowi <[email protected]>

Sashiko has reviewed this patch and found no issues. It looks great!

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Sashiko AI review · https://sashiko.dev/#/patchset/[email protected]?part=4