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a046d6fc54
No check for actually present hardware is being performed in the probe function of the mxl-gsw1xx switch driver. So even if the switch isn't present at the configured MDIO bus address the driver wrongly tells the user that a "GSWIP version 0 mod 0" was found, outputting errors about PHY capabilities not matching. Read and validate the chip MANU_ID and PNUM_ID registers and output information while probing, but return an error and abort probing in case the hardware is not actually present. Signed-off-by: Daniel Golle <daniel@makrotopia.org> Link: https://patch.msgid.link/3194d3d3bb0b51f08755d392e1fdf7bb6dc49608.1769916962.git.daniel@makrotopia.org Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>