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authorViresh Kumar <viresh.kumar@linaro.org>2019-03-12 07:57:18 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2019-03-12 11:45:56 +0300
commitfaef080f6db5320011862f7baf1aa66d0851559f (patch)
treeb86f9f2c93fefe73d4cb7690bf8b0630bf27d390 /drivers/opp
parent55286a29389a1a30fb2ccc83ef9315809946b365 (diff)
downloadlinux-faef080f6db5320011862f7baf1aa66d0851559f.tar.xz
PM / OPP: Update performance state when freq == old_freq
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 <stable@vger.kernel.org> # v5.0 Reported-by: Niklas Cassel <niklas.cassel@linaro.org> Tested-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/opp')
-rw-r--r--drivers/opp/core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index d7f97167cac3..0420f7e8ad5b 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -760,7 +760,7 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
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;