[PATCH V2 4/7] cpufreq: arm_big_little: don't initialize opp table

Viresh Kumar
2014-05-21T11:10:54Z

OPP tables are already initialized for all CPUs by cpufreq core and so we don't
need to reinitialize them from arm_big_little_dt driver.

Also, as the arm_big_little_dt driver doesn't have a .init_opp_table() callback
anymore, make it optional in arm_big_little driver.

Cc: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
drivers/cpufreq/arm_big_little.c | 12 +++++++-----
drivers/cpufreq/arm_big_little_dt.c | 18 ------------------
2 files changed, 7 insertions(+), 23 deletions(-)

diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 1f4d4e3..561261e 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -325,11 +325,13 @@ static int _get_cluster_clk_and_freq_table(struct device *cpu_dev)
if (freq_table[cluster])
return 0;

- ret = arm_bL_ops->init_opp_table(cpu_dev);
- if (ret) {
- dev_err(cpu_dev, "%s: init_opp_table failed, cpu: %d, err: %d\n",
+ if (arm_bL_ops->init_opp_table) {
+ ret = arm_bL_ops->init_opp_table(cpu_dev);
+ if (ret) {
+ dev_err(cpu_dev, "%s: init_opp_table failed, cpu: %d, err: %d\n",
__func__, cpu_dev->id, ret);
- goto out;
+ goto out;
+ }
}

ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table[cluster]);
@@ -542,7 +544,7 @@ int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops)
return -EBUSY;
}

- if (!ops || !strlen(ops->name) || !ops->init_opp_table) {
+ if (!ops || !strlen(ops->name)) {
pr_err("%s: Invalid arm_bL_ops, exiting\n", __func__);
return -ENODEV;
}
diff --git a/drivers/cpufreq/arm_big_little_dt.c b/drivers/cpufreq/arm_big_little_dt.c
index 8d9d591..502182d 100644
--- a/drivers/cpufreq/arm_big_little_dt.c
+++ b/drivers/cpufreq/arm_big_little_dt.c
@@ -43,23 +43,6 @@ static struct device_node *get_cpu_node_with_valid_op(int cpu)
return np;
}

-static int dt_init_opp_table(struct device *cpu_dev)
-{
- struct device_node *np;
- int ret;
-
- np = of_node_get(cpu_dev->of_node);
- if (!np) {
- pr_err("failed to find cpu%d node\n", cpu_dev->id);
- return -ENOENT;
- }
-
- ret = of_init_opp_table(cpu_dev);
- of_node_put(np);
-
- return ret;
-}
-
static int dt_get_transition_latency(struct device *cpu_dev)
{
struct device_node *np;
@@ -81,7 +64,6 @@ static int dt_get_transition_latency(struct device *cpu_dev)
static struct cpufreq_arm_bL_ops dt_bL_ops = {
.name = "dt-bl",
.get_transition_latency = dt_get_transition_latency,
- .init_opp_table = dt_init_opp_table,
};

static int generic_bL_probe(struct platform_device *pdev)
--
2.0.0.rc2