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Commit af671d8b authored by Aaro Koskinen's avatar Aaro Koskinen Committed by Rafael J. Wysocki
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cpufreq: pmac64: provide cpufreq transition latency for older G5 models 



Currently cpufreq ondemand governor cannot used on older G5 models,
because the transition latency is set to CPUFREQ_ETERNAL. Provide a
value based on a measurement on Xserve G5, which happens to be also the
highest allowed latency.

Signed-off-by: default avatarAaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 45a428eb

drivers/cpufreq/pmac64-cpufreq.c

+3 −1
Original line number Original line Diff line number Diff line
@@ -627,8 +627,10 @@ static int __init g5_pm72_cpufreq_init(struct device_node *cpunode) 
	g5_cpu_freqs[0].frequency = max_freq;

	g5_cpu_freqs[0].frequency = max_freq;

	g5_cpu_freqs[1].frequency = min_freq;

	g5_cpu_freqs[1].frequency = min_freq;





	/* Based on a measurement on Xserve G5, rounded up. */

	transition_latency = 10 * NSEC_PER_MSEC;



	/* Set callbacks */

	/* Set callbacks */

	transition_latency = CPUFREQ_ETERNAL;

	g5_switch_volt = g5_pfunc_switch_volt;

	g5_switch_volt = g5_pfunc_switch_volt;

	g5_switch_freq = g5_pfunc_switch_freq;

	g5_switch_freq = g5_pfunc_switch_freq;

	g5_query_freq = g5_pfunc_query_freq;

	g5_query_freq = g5_pfunc_query_freq;