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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