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soc: Mediatek: Add SCPSYS power domain driver

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This adds a power domain driver for the Mediatek SCPSYS unit.

The System Control Processor System (SCPSYS) has several power
management related tasks in the system. The tasks include thermal
measurement, dynamic voltage frequency scaling (DVFS), interrupt
filter and lowlevel sleep control. The System Power Manager (SPM)
inside the SCPSYS is for the MTCMOS power domain control.

For now this driver only adds power domain support, the more
advanced features are not yet supported. The driver implements
the generic PM domain device tree bindings, the first user will
most likely be the Mediatek AFE audio driver.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
This commit is contained in:
Sascha Hauer
2015-06-24 08:17:04 +02:00
committed by Matthias Brugger
parent 859e42800b
commit c84e358718
4 changed files with 513 additions and 0 deletions
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15
include/dt-bindings/power/mt8173-power.h Normal file
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#ifndef _DT_BINDINGS_POWER_MT8183_POWER_H
#define _DT_BINDINGS_POWER_MT8183_POWER_H
#define MT8173_POWER_DOMAIN_VDEC 0
#define MT8173_POWER_DOMAIN_VENC 1
#define MT8173_POWER_DOMAIN_ISP 2
#define MT8173_POWER_DOMAIN_MM 3
#define MT8173_POWER_DOMAIN_VENC_LT 4
#define MT8173_POWER_DOMAIN_AUDIO 5
#define MT8173_POWER_DOMAIN_USB 6
#define MT8173_POWER_DOMAIN_MFG_ASYNC 7
#define MT8173_POWER_DOMAIN_MFG_2D 8
#define MT8173_POWER_DOMAIN_MFG 9
#endif /* _DT_BINDINGS_POWER_MT8183_POWER_H */