| Date | Wed, 28 Nov 2012 10:32:42 +0800 | From | Shawn Guo <> | Subject | Re: [PATCH 6/6 v6] cpufreq, highbank: add support for highbank cpufreq |
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On Tue, Nov 27, 2012 at 02:04:32PM -0600, Mark Langsdorf wrote: > Highbank processors depend on the external ECME to perform voltage > management based on a requested frequency. Communication between the > A9 cores and the ECME happens over the pl320 IPC channel.
...
> +static int hb_voltage_change(unsigned int freq) > +{ > + int i; > + u32 msg[7]; > + > + msg[0] = HB_CPUFREQ_CHANGE_NOTE; > + msg[1] = freq / 1000; > + for (i = 2; i < 7; i++) > + msg[i] = 0; > + > + return pl320_ipc_transmit(msg);
Is it possible to have this handled inside clk_set_rate() call of cpu clock?
Shawn
> +}
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