Hi Lina, On Friday 08 August 2014 09:35 AM, Lina Iyer wrote: > Qualcomm chipsets use an separate h/w block to control the logic around > the processor cores (cpu and L2). The SPM h/w block regulates power to > the cores and controls the power when the core enter low power modes. > > Each core has its own instance of SPM. The SPM has the following key > functions > - Configure the h/w dependencies when entering low power modes > - Wait for interrupt and wake up on interrupt > - Ensure the dependencies are ready before bringing the core out > of sleep > - Regulating voltage to the core, interfacing with the PMIC. > - Optimize power based on runtime recommendations. > > The driver identifies and configures the SPMs, by reading the nodes and > the register values from the devicetree. The SPMs need to be configured > to allow the processor to be idled in a low power state. 22 30 0f]; <snip> > + }; > diff --git a/drivers/soc/qcom/Makefile b/drivers/soc/qcom/Makefile > index 70d52ed..3de7ed9 100644 > --- a/drivers/soc/qcom/Makefile > +++ b/drivers/soc/qcom/Makefile > @@ -1,3 +1,5 @@ > obj-$(CONFIG_QCOM_GSBI) += qcom_gsbi.o > +obj-$(CONFIG_QCOM_PM) += spm_devices.o spm.o Are we missing a Kconfig entry for CONFIG_QCOM_PM? This won't compile. > + > CFLAGS_scm.o :=$(call as-instr,.arch_extension sec,-DREQUIRES_SEC=1) > obj-$(CONFIG_QCOM_SCM) += scm.o scm-boot.o <snip> > +#endif /* defined (CONFIG_QCOM_PM) */ > +#endif /* __MSM_SPM_H */ > -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
