[v1] hwmon: (pmbus/tps53679) Select page 0 for single-page parts

[PATCH 0/2] hwmon: (pmbus/tps53679) Select page 0 for single-page parts

Pradhan, Sanman posted 2 patches 1 week, 1 day ago

Diff against v2
Download series mbox

There is a newer version of this series

drivers/hwmon/pmbus/tps53679.c | 48 ++++++++++++++++++++++++++++++++++
1 file changed, 48 insertions(+)

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[PATCH 0/2] hwmon: (pmbus/tps53679) Select page 0 for single-page parts

Posted by Pradhan, Sanman 1 week, 1 day ago

From: Sanman Pradhan <psanman@juniper.net>

For single-page TPS53676 and TPS536C7 configurations the PAGE register is
never normalised: pmbus_set_page() only writes PAGE when info->pages > 1,
so a page left selected by the boot firmware persists and telemetry is
read from the wrong page. Select page 0 explicitly (with readback) in the
two identify routines.

Patch 1 is a pre-existing TPS53676 fix (Fixes/stable). Patch 2 fixes the
TPS536C7 support and applies on top of the TPS53622/TPS53659/TPS536C7
series already applied to hwmon-next; it is not yet in a released kernel,
so it carries no stable tag.

These two patches apply on top of the TPS536C7 series ("hwmon:
(pmbus/tps53679) Add support for TPS536C7") already in hwmon-next, so
there is no separate base-commit line.

Link: https://lore.kernel.org/linux-hwmon/20260915164823.160977-1-sanman.pradhan@hpe.com/T/#t

Sanman Pradhan (2):
  hwmon: (pmbus/tps53679) Select page 0 for single-page TPS53676
  hwmon: (pmbus/tps53679) Select page 0 for single-page TPS536C7

 drivers/hwmon/pmbus/tps53679.c | 48 ++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

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2.34.1