usb: typec: mux: ps883x: Power the retimer off when not in use

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When there's nothing going through the retimer, there's no reason to
keep it online. Put it in reset when possible to save power.

Also, remove the register cache-compare optimization as it makes little
sense now that the chip resets during almost all transitions and
tracking the validity of that cache becomes a headache.

Suggested-by: Jack Pham <jack.pham@oss.qualcomm.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Anthony Ruhier <aruhier@mailbox.org>
Link: https://patch.msgid.link/20260420-topic-ps883x_unused_reset-v1-1-7aabf7004d2a@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Konrad Dybcio 2026-04-20 13:40:28 +02:00 • committed by Greg Kroah-Hartman

parent e4d7362dc9

commit b38fa168a8

1 changed files with 114 additions and 82 deletions

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drivers/usb/typec/mux/ps883x.c

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