usb: typec: ps883x: Cache register settings, not Type-C mode

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Certain Type-C mode configurations may result in identical settings of
the PS8830. Check if the latter have changed instead of assuming
there's always a difference.

ps883x_set() is changed to accept a typec_retimer_state in preparation
for more work and the ps883x_sw_set() (which only handles orientation
switching) is changed to use regmap_assign_bits(), which itself does
not perform any writes if the desired value is already set.

Reviewed-by: Jack Pham <jack.pham@oss.qualcomm.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20251014-topic-ps883x_usb4-v1-1-e6adb1a4296e@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Konrad Dybcio 2025-10-14 18:06:45 +02:00 • committed by Greg Kroah-Hartman

parent 26c3af0cd8

commit f83cb615cb

1 changed files with 22 additions and 19 deletions

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drivers/usb/typec/mux/ps883x.c

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