cpufreq: Add Tegra194 cpufreq driver

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Add support for CPU frequency scaling on Tegra194. The frequency
of each core can be adjusted by writing a clock divisor value to
a MSR on the core. The range of valid divisors is queried from
the BPMP.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

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Sumit Gupta 2020-07-16 14:00:01 +05:30 • committed by Viresh Kumar

parent 9b25d3f425

commit df320f8935

3 changed files with 398 additions and 0 deletions

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7

drivers/cpufreq/Kconfig.arm

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1

drivers/cpufreq/Makefile

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390

drivers/cpufreq/tegra194-cpufreq.c

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