diff options
Diffstat (limited to 'target/linux/ipq806x/patches-6.1/113-v5.19-01-PM-devfreq-Fix-cpufreq-passive-unregister-errorin.patch')
-rw-r--r-- | target/linux/ipq806x/patches-6.1/113-v5.19-01-PM-devfreq-Fix-cpufreq-passive-unregister-errorin.patch | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/target/linux/ipq806x/patches-6.1/113-v5.19-01-PM-devfreq-Fix-cpufreq-passive-unregister-errorin.patch b/target/linux/ipq806x/patches-6.1/113-v5.19-01-PM-devfreq-Fix-cpufreq-passive-unregister-errorin.patch deleted file mode 100644 index 0883424548..0000000000 --- a/target/linux/ipq806x/patches-6.1/113-v5.19-01-PM-devfreq-Fix-cpufreq-passive-unregister-errorin.patch +++ /dev/null @@ -1,85 +0,0 @@ -From 8953603eb5447be52f6fc3d8fcae1b3ce9899189 Mon Sep 17 00:00:00 2001 -From: Christian 'Ansuel' Marangi <ansuelsmth@gmail.com> -Date: Mon, 6 Jun 2022 11:58:49 +0200 -Subject: [PATCH v4 1/4] PM / devfreq: Fix cpufreq passive unregister erroring - on PROBE_DEFER - -With the passive governor, the cpu based scaling can PROBE_DEFER due to -the fact that CPU policy are not ready. -The cpufreq passive unregister notifier is called both from the -GOV_START errors and for the GOV_STOP and assume the notifier is -successfully registred every time. With GOV_START failing it's wrong to -loop over each possible CPU since the register path has failed for -some CPU policy not ready. Change the logic and unregister the notifer -based on the current allocated parent_cpu_data list to correctly handle -errors and the governor unregister path. - -Fixes: a03dacb0316f ("PM / devfreq: Add cpu based scaling support to passive governor") -Signed-off-by: Christian 'Ansuel' Marangi <ansuelsmth@gmail.com> ---- - drivers/devfreq/governor_passive.c | 39 +++++++++++++----------------- - 1 file changed, 17 insertions(+), 22 deletions(-) - ---- a/drivers/devfreq/governor_passive.c -+++ b/drivers/devfreq/governor_passive.c -@@ -34,6 +34,20 @@ get_parent_cpu_data(struct devfreq_passi - return NULL; - } - -+static void delete_parent_cpu_data(struct devfreq_passive_data *p_data) -+{ -+ struct devfreq_cpu_data *parent_cpu_data, *tmp; -+ -+ list_for_each_entry_safe(parent_cpu_data, tmp, &p_data->cpu_data_list, node) { -+ list_del(&parent_cpu_data->node); -+ -+ if (parent_cpu_data->opp_table) -+ dev_pm_opp_put_opp_table(parent_cpu_data->opp_table); -+ -+ kfree(parent_cpu_data); -+ } -+} -+ - static unsigned long get_target_freq_by_required_opp(struct device *p_dev, - struct opp_table *p_opp_table, - struct opp_table *opp_table, -@@ -222,8 +236,7 @@ static int cpufreq_passive_unregister_no - { - struct devfreq_passive_data *p_data - = (struct devfreq_passive_data *)devfreq->data; -- struct devfreq_cpu_data *parent_cpu_data; -- int cpu, ret = 0; -+ int ret; - - if (p_data->nb.notifier_call) { - ret = cpufreq_unregister_notifier(&p_data->nb, -@@ -232,27 +245,9 @@ static int cpufreq_passive_unregister_no - return ret; - } - -- for_each_possible_cpu(cpu) { -- struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); -- if (!policy) { -- ret = -EINVAL; -- continue; -- } -- -- parent_cpu_data = get_parent_cpu_data(p_data, policy); -- if (!parent_cpu_data) { -- cpufreq_cpu_put(policy); -- continue; -- } -- -- list_del(&parent_cpu_data->node); -- if (parent_cpu_data->opp_table) -- dev_pm_opp_put_opp_table(parent_cpu_data->opp_table); -- kfree(parent_cpu_data); -- cpufreq_cpu_put(policy); -- } -+ delete_parent_cpu_data(p_data); - -- return ret; -+ return 0; - } - - static int cpufreq_passive_register_notifier(struct devfreq *devfreq) |