lkml.org 
[lkml]   [2012]   [Nov]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 0/4] cpufreq: OMAP: if available, scale the iva coprocessor
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


\
 
 \ /
  Last update: 2012-11-07 16:21    [W:0.049 / U:0.080 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site