On 19-08-15, 10:05, Pi-Cheng Chen wrote: > Mediatek MT8173 is an ARMv8 based quad-core (2*Cortex-A53 and > 2*Cortex-A72) SoC with duall clusters. For each cluster, two voltage > inputs, Vproc and Vsram are supplied by two regulators. For the big > cluster, two regulators come from different PMICs. In this case, when > scaling voltage inputs of the cluster, the voltages of two regulator > inputs need to be controlled by software explicitly under the SoC > specific limitation: > > 100mV < Vsram - Vproc < 200mV > > which is called 'voltage tracking' mechanism. And when scaling the > frequency of cluster clock input, the input MUX need to be parented to > another "intermediate" stable PLL first and reparented to the original > PLL once the original PLL is stable at the target frequency. This patch > implements those mechanisms to enable CPU DVFS support for Mediatek > MT8173 SoC. > > Signed-off-by: Pi-Cheng Chen <pi-cheng.chen@xxxxxxxxxx> > Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx> > --- > > Changes in v7: > - add of_machine_is_compatible() check to be multiplatform friendly Looks fine, thanks. -- viresh -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
