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lategoodbye / rpi-zero

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raspberry-power: Enable runtime status for USB power domain #38

Closed lategoodbye closed 5 years ago

lategoodbye commented 6 years ago

Currently /sys/kernel/debug/pm_genpd/pm_genpd_summary reports that there is no runtime pm available for USB:

domain                          status          slaves
    /device                                             runtime status
----------------------------------------------------------------------
ARM                             off-0           
CDP                             off-0           
CCP2TX                          off-0           
TRANSPOSER                      off-0           
DSI1                            off-0           
DSI0                            off-0           
CPI                             off-0           
CSI2                            off-0           
CCP2RX                          off-0           
UNICAM1                         off-0           
UNICAM0                         off-0           
ISP                             off-0           
V3D                             on              
    /devices/platform/soc/3fc00000.v3d                  active
H264                            off-0           
JPEG                            off-0           
VEC                             on              
    /devices/platform/soc/3f806000.vec                  suspended
USB                             on              
    /devices/platform/soc/3f980000.usb                  unsupported
HDMI                            on              
    /devices/platform/soc/3f902000.hdmi                 active
VPU1                            off-0           
VIDEO_SCALER                    off-0           
I2C2                            off-0           
I2C1                            off-0           
I2C0                            off-0
lategoodbye commented 5 years ago

Since there is a native Linux driver for power management, i think we should concentrate our efforts on this.