mlxsw: core_hwmon: Query MTMP before writing to set only relevant fields

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The MTMP register controls various temperature settings on a per-sensor
basis. Subsequent patches are going to alter some of these settings for
sensors found on port modules in response to certain events.

In order to prevent the current callers that write to MTMP from
overriding these settings, have them first query the register and then
change only the relevant register fields.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Amit Cohen 2020-09-27 10:50:09 +03:00 • committed by David S. Miller

parent 02d33b4520

commit fb1292f821

1 changed files with 17 additions and 4 deletions

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drivers/net/ethernet/mellanox/mlxsw/core_hwmon.c

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