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Merge "msm: kgsl: Don't populate the OPP table if it already exists"

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qctecmdr 2020-04-16 01:40:58 -07:00 • committed by Gerrit - the friendly Code Review server
commit 64091379ee
1 changed files with 7 additions and 40 deletions
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47
drivers/gpu/msm/adreno.c
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@ -779,51 +779,18 @@ static const struct of_device_id adreno_match_table[] = {
/* Dynamically build the OPP table for the GPU device */
static void adreno_build_opp_table(struct device *dev, struct kgsl_pwrctrl *pwr)
{
struct dev_pm_opp *opp;
unsigned long freq = 0;
struct opp_table *table;
int i;
/*
* First an annoying step: Some targets have clock drivers that
* "helpfully" builds a OPP table for us but usually it is wrong.
* Go through and filter out unsupported frequencies
*/
for (;;) {
opp = dev_pm_opp_find_freq_ceil(dev, &freq);
if (IS_ERR(opp))
break;
dev_pm_opp_put(opp);
for (i = 0; i < pwr->num_pwrlevels; i++) {
if (freq == pwr->pwrlevels[i].gpu_freq)
break;
}
if (i == pwr->num_pwrlevels)
dev_pm_opp_remove(dev, freq);
freq++;
table = dev_pm_opp_get_opp_table(dev);
if (table) {
dev_pm_opp_put_opp_table(table);
return;
}
/* Now add all of our supported frequencies into the tree */
for (i = 0; i < pwr->num_pwrlevels; i++) {
/*
* When we defer a probe the previous table will still be active
* don't add again to avoid duplicate OPP spam
*/
opp = dev_pm_opp_find_freq_exact(dev,
pwr->pwrlevels[i].gpu_freq, true);
if (!IS_ERR(opp)) {
dev_pm_opp_put(opp);
continue;
}
/* Add all the supported frequencies into the tree */
for (i = 0; i < pwr->num_pwrlevels; i++)
dev_pm_opp_add(dev, pwr->pwrlevels[i].gpu_freq, 0);
}
}
static int adreno_of_parse_pwrlevels(struct adreno_device *adreno_dev,