pmdomain: mediatek: Add support for RTFF Hardware in MT8196/MT6991

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New generation SoCs use a new RTFF Hardware to save power during
operation of various IPs, other than managing isolation of the
internal buck converters during powerup/down of power domains.

Since some of the power domains need different RTFF handling, add
a new scpys_rtff_type enumeration and hold the value for each
power domain in struct scpsys_domain_data.

If RTFF HW is available, the RTFF additional power sequences are
handled in scpsys_ctl_pwrseq_{on,off}().

Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20250805074746.29457-9-angelogioacchino.delregno@collabora.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

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AngeloGioacchino Del Regno 2025-08-05 09:47:44 +02:00 • committed by Ulf Hansson

parent 16d861d2bc

commit 9d02c94342

2 changed files with 111 additions and 1 deletions

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94

drivers/pmdomain/mediatek/mtk-pm-domains.c

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18

drivers/pmdomain/mediatek/mtk-pm-domains.h

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