5.0-stable review patch. If anyone has any objections, please let me know.
------------------ From: Viresh Kumar <[email protected]> commit faef080f6db5320011862f7baf1aa66d0851559f upstream. At boot up, CPUFreq core performs a sanity check to see if the system is running at a frequency defined in the frequency table of the CPU. If so, we try to find a valid frequency (lowest frequency greater than the currently programmed frequency) from the table and set it. When the call reaches dev_pm_opp_set_rate(), it calls _find_freq_ceil(opp_table, &old_freq) to find the previously configured OPP and this call also updates the old_freq. This eventually sets the old_freq == freq (new target requested by cpufreq core) and we skip updating the performance state in this case. Fix this by also updating the performance state when the old_freq == freq. Fixes: ca1b5d77b1c6 ("OPP: Configure all required OPPs") Cc: v5.0 <[email protected]> # v5.0 Reported-by: Niklas Cassel <[email protected]> Tested-by: Jorge Ramirez-Ortiz <[email protected]> Signed-off-by: Viresh Kumar <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/opp/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -743,7 +743,7 @@ int dev_pm_opp_set_rate(struct device *d old_freq, freq); /* Scaling up? Configure required OPPs before frequency */ - if (freq > old_freq) { + if (freq >= old_freq) { ret = _set_required_opps(dev, opp_table, opp); if (ret) goto put_opp;
