As a result of setting the frequency scale factor in cpufreq core, after
callbacks that lend themselves to trigger it, remove this functionality
from the driver side.

For these drivers, the CPUFREQ_CUSTOM_SET_FREQ_SCALE flag is also removed,
to enable the use of the generic code on the cpufreq core side.

Signed-off-by: Ionela Voinescu <ionela.voine...@arm.com>
Cc: Rafael J. Wysocki <r...@rjwysocki.net>
Cc: Viresh Kumar <viresh.ku...@linaro.org>
---
 drivers/cpufreq/cpufreq-dt.c      | 13 ++-----------
 drivers/cpufreq/qcom-cpufreq-hw.c | 12 ++----------
 drivers/cpufreq/scmi-cpufreq.c    | 21 ++++++---------------
 drivers/cpufreq/scpi-cpufreq.c    |  6 +-----
 4 files changed, 11 insertions(+), 41 deletions(-)

diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index 8e0571a49d1e..9fd4ce774f12 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -40,16 +40,8 @@ static int set_target(struct cpufreq_policy *policy, 
unsigned int index)
 {
        struct private_data *priv = policy->driver_data;
        unsigned long freq = policy->freq_table[index].frequency;
-       int ret;
-
-       ret = dev_pm_opp_set_rate(priv->cpu_dev, freq * 1000);
 
-       if (!ret) {
-               arch_set_freq_scale(policy->related_cpus, freq,
-                                   policy->cpuinfo.max_freq);
-       }
-
-       return ret;
+       return dev_pm_opp_set_rate(priv->cpu_dev, freq * 1000);
 }
 
 /*
@@ -331,8 +323,7 @@ static int cpufreq_exit(struct cpufreq_policy *policy)
 
 static struct cpufreq_driver dt_cpufreq_driver = {
        .flags = CPUFREQ_STICKY | CPUFREQ_NEED_INITIAL_FREQ_CHECK |
-                CPUFREQ_IS_COOLING_DEV |
-                CPUFREQ_CUSTOM_SET_FREQ_SCALE,
+                CPUFREQ_IS_COOLING_DEV,
        .verify = cpufreq_generic_frequency_table_verify,
        .target_index = set_target,
        .get = cpufreq_generic_get,
diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c 
b/drivers/cpufreq/qcom-cpufreq-hw.c
index e13780beb373..e5d1ee7746a4 100644
--- a/drivers/cpufreq/qcom-cpufreq-hw.c
+++ b/drivers/cpufreq/qcom-cpufreq-hw.c
@@ -85,8 +85,6 @@ static int qcom_cpufreq_hw_target_index(struct cpufreq_policy 
*policy,
        if (icc_scaling_enabled)
                qcom_cpufreq_set_bw(policy, freq);
 
-       arch_set_freq_scale(policy->related_cpus, freq,
-                           policy->cpuinfo.max_freq);
        return 0;
 }
 
@@ -113,7 +111,6 @@ static unsigned int qcom_cpufreq_hw_fast_switch(struct 
cpufreq_policy *policy,
 {
        void __iomem *perf_state_reg = policy->driver_data;
        int index;
-       unsigned long freq;
 
        index = policy->cached_resolved_idx;
        if (index < 0)
@@ -121,11 +118,7 @@ static unsigned int qcom_cpufreq_hw_fast_switch(struct 
cpufreq_policy *policy,
 
        writel_relaxed(index, perf_state_reg);
 
-       freq = policy->freq_table[index].frequency;
-       arch_set_freq_scale(policy->related_cpus, freq,
-                           policy->cpuinfo.max_freq);
-
-       return freq;
+       return policy->freq_table[index].frequency;
 }
 
 static int qcom_cpufreq_hw_read_lut(struct device *cpu_dev,
@@ -337,8 +330,7 @@ static struct freq_attr *qcom_cpufreq_hw_attr[] = {
 static struct cpufreq_driver cpufreq_qcom_hw_driver = {
        .flags          = CPUFREQ_STICKY | CPUFREQ_NEED_INITIAL_FREQ_CHECK |
                          CPUFREQ_HAVE_GOVERNOR_PER_POLICY |
-                         CPUFREQ_IS_COOLING_DEV |
-                         CPUFREQ_CUSTOM_SET_FREQ_SCALE,
+                         CPUFREQ_IS_COOLING_DEV,
        .verify         = cpufreq_generic_frequency_table_verify,
        .target_index   = qcom_cpufreq_hw_target_index,
        .get            = qcom_cpufreq_hw_get,
diff --git a/drivers/cpufreq/scmi-cpufreq.c b/drivers/cpufreq/scmi-cpufreq.c
index 16ab4ecc75e4..a91a45c90274 100644
--- a/drivers/cpufreq/scmi-cpufreq.c
+++ b/drivers/cpufreq/scmi-cpufreq.c
@@ -48,16 +48,11 @@ static unsigned int scmi_cpufreq_get_rate(unsigned int cpu)
 static int
 scmi_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int index)
 {
-       int ret;
        struct scmi_data *priv = policy->driver_data;
        struct scmi_perf_ops *perf_ops = handle->perf_ops;
        u64 freq = policy->freq_table[index].frequency;
 
-       ret = perf_ops->freq_set(handle, priv->domain_id, freq * 1000, false);
-       if (!ret)
-               arch_set_freq_scale(policy->related_cpus, freq,
-                                   policy->cpuinfo.max_freq);
-       return ret;
+       return perf_ops->freq_set(handle, priv->domain_id, freq * 1000, false);
 }
 
 static unsigned int scmi_cpufreq_fast_switch(struct cpufreq_policy *policy,
@@ -66,14 +61,11 @@ static unsigned int scmi_cpufreq_fast_switch(struct 
cpufreq_policy *policy,
        struct scmi_data *priv = policy->driver_data;
        struct scmi_perf_ops *perf_ops = handle->perf_ops;
 
-       if (!perf_ops->freq_set(handle, priv->domain_id,
-                               target_freq * 1000, true)) {
-               arch_set_freq_scale(policy->related_cpus, target_freq,
-                                   policy->cpuinfo.max_freq);
-               return target_freq;
-       }
+       if (perf_ops->freq_set(handle, priv->domain_id,
+                               target_freq * 1000, true))
+               return 0;
 
-       return 0;
+       return target_freq;
 }
 
 static int
@@ -223,8 +215,7 @@ static struct cpufreq_driver scmi_cpufreq_driver = {
        .name   = "scmi",
        .flags  = CPUFREQ_STICKY | CPUFREQ_HAVE_GOVERNOR_PER_POLICY |
                  CPUFREQ_NEED_INITIAL_FREQ_CHECK |
-                 CPUFREQ_IS_COOLING_DEV |
-                 CPUFREQ_CUSTOM_SET_FREQ_SCALE,
+                 CPUFREQ_IS_COOLING_DEV,
        .verify = cpufreq_generic_frequency_table_verify,
        .attr   = cpufreq_generic_attr,
        .target_index   = scmi_cpufreq_set_target,
diff --git a/drivers/cpufreq/scpi-cpufreq.c b/drivers/cpufreq/scpi-cpufreq.c
index 6b5f56dc3ca3..5a399fb847b9 100644
--- a/drivers/cpufreq/scpi-cpufreq.c
+++ b/drivers/cpufreq/scpi-cpufreq.c
@@ -60,9 +60,6 @@ scpi_cpufreq_set_target(struct cpufreq_policy *policy, 
unsigned int index)
        if (clk_get_rate(priv->clk) != rate)
                return -EIO;
 
-       arch_set_freq_scale(policy->related_cpus, freq,
-                           policy->cpuinfo.max_freq);
-
        return 0;
 }
 
@@ -197,8 +194,7 @@ static struct cpufreq_driver scpi_cpufreq_driver = {
        .name   = "scpi-cpufreq",
        .flags  = CPUFREQ_STICKY | CPUFREQ_HAVE_GOVERNOR_PER_POLICY |
                  CPUFREQ_NEED_INITIAL_FREQ_CHECK |
-                 CPUFREQ_IS_COOLING_DEV |
-                 CPUFREQ_CUSTOM_SET_FREQ_SCALE,
+                 CPUFREQ_IS_COOLING_DEV,
        .verify = cpufreq_generic_frequency_table_verify,
        .attr   = cpufreq_generic_attr,
        .get    = scpi_cpufreq_get_rate,
-- 
2.17.1

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