pinctrl: renesas: rzg2l: Add suspend/resume support for pull up/down

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The Renesas RZ/G3S supports a power-saving mode where power to most of
the SoC components is lost, including the PIN controller.  Save and
restore the pull-up/pull-down register contents to ensure the
functionality is preserved after a suspend/resume cycle.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250205100116.2032765-1-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

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Claudiu Beznea 2025-02-05 12:01:16 +02:00 • committed by Geert Uytterhoeven

parent 2014c95afe

commit b2bd65fbb6

1 changed files with 18 additions and 1 deletions

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drivers/pinctrl/renesas/pinctrl-rzg2l.c

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