cpufreq: tegra194: get consistent cpuinfo_cur_freq

Browse source

Frequency returned by 'cpuinfo_cur_freq' using counters is not fixed
and keeps changing slightly. This change returns a consistent value
from freq_table. If the reconstructed frequency has acceptable delta
from the last written value, then return the frequency corresponding
to the last written ndiv value from freq_table. Otherwise, print a
warning and return the reconstructed freq.

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

...

This commit is contained in:

Sumit Gupta 2020-10-14 15:06:11 +05:30 • committed by Viresh Kumar

parent 75118c8ef9

commit 68b9cd7270

1 changed files with 53 additions and 9 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

62

drivers/cpufreq/tegra194-cpufreq.c

View file