Commit 681a02e9 authored by Roger Lu's avatar Roger Lu Committed by Matthias Brugger
Browse files

soc: mediatek: SVS: introduce MTK SVS engine 



The Smart Voltage Scaling(SVS) engine is a piece of hardware
which calculates suitable SVS bank voltages to OPP voltage table.
Then, DVFS driver could apply those SVS bank voltages to PMIC/Buck
when receiving OPP_EVENT_ADJUST_VOLTAGE.

Signed-off-by: default avatarRoger Lu <roger.lu@mediatek.com>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: default avatarKevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20220516004311.18358-4-roger.lu@mediatek.com


Signed-off-by: default avatarMatthias Brugger <matthias.bgg@gmail.com>
parent d969f217

drivers/soc/mediatek/Kconfig

+10 −0
Original line number Diff line number Diff line
@@ -73,4 +73,14 @@ config MTK_MMSYS 
	  Say yes here to add support for the MediaTek Multimedia

	  Subsystem (MMSYS).



config MTK_SVS

	tristate "MediaTek Smart Voltage Scaling(SVS)"

	depends on MTK_EFUSE && NVMEM

	help

	  The Smart Voltage Scaling(SVS) engine is a piece of hardware

	  which has several controllers(banks) for calculating suitable

	  voltage to different power domains(CPU/GPU/CCI) according to

	  chip process corner, temperatures and other factors. Then DVFS

	  driver could apply SVS bank voltage to PMIC/Buck.



endmenu

drivers/soc/mediatek/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -7,3 +7,4 @@ obj-$(CONFIG_MTK_SCPSYS) += mtk-scpsys.o 
obj-$(CONFIG_MTK_SCPSYS_PM_DOMAINS) += mtk-pm-domains.o

obj-$(CONFIG_MTK_MMSYS) += mtk-mmsys.o

obj-$(CONFIG_MTK_MMSYS) += mtk-mutex.o

obj-$(CONFIG_MTK_SVS) += mtk-svs.o

drivers/soc/mediatek/mtk-svs.c

0 → 100644
+1417 −0

File added.

Preview size limit exceeded, changes collapsed.