Messages in this thread | | | Date | Wed, 7 Nov 2012 08:42:38 -0600 | From | Santosh Shilimkar <> | Subject | Re: [PATCH 0/4] cpufreq: OMAP: if available, scale the iva coprocessor |
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Hi,
On Tuesday 06 November 2012 07:47 PM, Joshua Emele wrote: > The iva coprocessor, available on some omap platforms, shares a voltage domain > with the mpu. If cpufreq is active and the mpu processor is scaled down, the iva > coprocessor should also be scaled. The goal is to make sure we do not ramp down > the voltage on the domain and affect clocking on the iva coprocessor leading to > a dsp crash. > > I only have access to an omap3evm-ish device, so I do not know what the iva > clock name is for omap24xx and omap44xx. This detail can be added later if the > general approach is approved. > > I have tested a version of this patch against the linux-3.3 kernel, so this my > attempt at a forward port against the current mainline. I have based my patch > series against linux-omap-pm/pm-next. > How about making use of CPUFREQ notifiers to handle it. I don't like this series since it adds multi-media co-processor scaling into the CPUFreq driver.
Regards Santosh
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