On 2012-11-22 16:34, Tero Kristo wrote: > I guess you checked that DSS pwrdm is switching between RET and ON in > your setup? Yes: # cat /debug/pm_debug/count |grep dss [ 35.356567] pwrdm state mismatch(l3init_pwrdm) 3 != 1 [ 35.361938] pwrdm state mismatch(cam_pwrdm) 3 != 0 [ 35.366973] pwrdm state mismatch(ivahd_pwrdm) 3 != 1 [ 35.372253] pwrdm state mismatch(tesla_pwrdm) 3 != 1 [ 35.377532] pwrdm state mismatch(abe_pwrdm) 3 != 1 dss_pwrdm (RET),OFF:1,RET:11,INA:0,ON:11,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 l3_dss_clkdm->dss_pwrdm (0) then I load and unload the dss modules, and then: # cat /debug/pm_debug/count |grep dss [ 60.813629] pwrdm state mismatch(l3init_pwrdm) 3 != 1 [ 60.819000] pwrdm state mismatch(cam_pwrdm) 3 != 0 [ 60.824127] pwrdm state mismatch(ivahd_pwrdm) 3 != 1 [ 60.829376] pwrdm state mismatch(tesla_pwrdm) 3 != 1 [ 60.834625] pwrdm state mismatch(abe_pwrdm) 3 != 1 dss_pwrdm (ON),OFF:1,RET:21,INA:0,ON:22,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 l3_dss_clkdm->dss_pwrdm (0) >> Does the pwrdm mistakenly think that in RET state the DSS still keeps >> the register contents? > > This might be the case, however the pwrdm code should be generic and > handle all domains properly. What is the tree / branch / commit you are > using for testing this stuff? I can take a look at this also. arm-soc/for-next Tomi
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