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authorViresh Kumar <viresh.kumar@linaro.org>2022-07-04 12:27:06 +0300
committerViresh Kumar <viresh.kumar@linaro.org>2022-07-08 08:57:50 +0300
commit1f378c6ead5c69decf36e8e61de2e50377c76ab8 (patch)
treecc1c0b54f145c902f4633e4f6cf3c6fcdfe738b6 /drivers/opp
parent6baee034cb55d53b74165d31c2371f0736c432e8 (diff)
downloadlinux-1f378c6ead5c69decf36e8e61de2e50377c76ab8.tar.xz
OPP: Remove custom OPP helper support
The only user of the custom helper is migrated to use dev_pm_opp_set_config_regulators() interface. Remove the now unused custom OPP helper support. This cleans up _set_opp() and leaves a single code path to be used by all users. Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/opp')
-rw-r--r--drivers/opp/core.c132
-rw-r--r--drivers/opp/opp.h7
2 files changed, 2 insertions, 137 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 3a794bff2ba1..e74bdc134c5a 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -979,36 +979,6 @@ static int _set_opp_bw(const struct opp_table *opp_table,
return 0;
}
-static int _set_opp_custom(const struct opp_table *opp_table,
- struct device *dev, struct dev_pm_opp *opp,
- unsigned long freq)
-{
- struct dev_pm_set_opp_data *data = opp_table->set_opp_data;
- struct dev_pm_opp *old_opp = opp_table->current_opp;
- int size;
-
- /*
- * We support this only if dev_pm_opp_set_config() was called
- * earlier to set regulators.
- */
- if (opp_table->sod_supplies) {
- size = sizeof(*old_opp->supplies) * opp_table->regulator_count;
- memcpy(data->old_opp.supplies, old_opp->supplies, size);
- memcpy(data->new_opp.supplies, opp->supplies, size);
- data->regulator_count = opp_table->regulator_count;
- } else {
- data->regulator_count = 0;
- }
-
- data->regulators = opp_table->regulators;
- data->clk = opp_table->clk;
- data->dev = dev;
- data->old_opp.rate = old_opp->rate;
- data->new_opp.rate = freq;
-
- return opp_table->set_opp(data);
-}
-
static int _set_required_opp(struct device *dev, struct device *pd_dev,
struct dev_pm_opp *opp, int i)
{
@@ -1195,13 +1165,7 @@ static int _set_opp(struct device *dev, struct opp_table *opp_table,
}
}
- if (opp_table->set_opp) {
- ret = _set_opp_custom(opp_table, dev, opp, freq);
- } else {
- /* Only frequency scaling */
- ret = _generic_set_opp_clk_only(dev, opp_table->clk, freq);
- }
-
+ ret = _generic_set_opp_clk_only(dev, opp_table->clk, freq);
if (ret)
return ret;
@@ -2065,7 +2029,6 @@ static void _opp_put_prop_name(struct opp_table *opp_table)
static int _opp_set_regulators(struct opp_table *opp_table, struct device *dev,
const char * const names[])
{
- struct dev_pm_opp_supply *supplies;
const char * const *temp = names;
struct regulator *reg;
int count = 0, ret, i;
@@ -2101,20 +2064,6 @@ static int _opp_set_regulators(struct opp_table *opp_table, struct device *dev,
opp_table->regulator_count = count;
- supplies = kmalloc_array(count * 2, sizeof(*supplies), GFP_KERNEL);
- if (!supplies) {
- ret = -ENOMEM;
- goto free_regulators;
- }
-
- mutex_lock(&opp_table->lock);
- opp_table->sod_supplies = supplies;
- if (opp_table->set_opp_data) {
- opp_table->set_opp_data->old_opp.supplies = supplies;
- opp_table->set_opp_data->new_opp.supplies = supplies + count;
- }
- mutex_unlock(&opp_table->lock);
-
/* Set generic config_regulators() for single regulators here */
if (count == 1)
opp_table->config_regulators = _opp_config_regulator_single;
@@ -2151,16 +2100,6 @@ static void _opp_put_regulators(struct opp_table *opp_table)
for (i = opp_table->regulator_count - 1; i >= 0; i--)
regulator_put(opp_table->regulators[i]);
- mutex_lock(&opp_table->lock);
- if (opp_table->set_opp_data) {
- opp_table->set_opp_data->old_opp.supplies = NULL;
- opp_table->set_opp_data->new_opp.supplies = NULL;
- }
-
- kfree(opp_table->sod_supplies);
- opp_table->sod_supplies = NULL;
- mutex_unlock(&opp_table->lock);
-
kfree(opp_table->regulators);
opp_table->regulators = NULL;
opp_table->regulator_count = -1;
@@ -2234,61 +2173,6 @@ static void _opp_put_clknames(struct opp_table *opp_table)
}
/**
- * _opp_register_set_opp_helper() - Register custom set OPP helper
- * @dev: Device for which the helper is getting registered.
- * @set_opp: Custom set OPP helper.
- *
- * This is useful to support complex platforms (like platforms with multiple
- * regulators per device), instead of the generic OPP set rate helper.
- *
- * This must be called before any OPPs are initialized for the device.
- */
-static int _opp_register_set_opp_helper(struct opp_table *opp_table,
- struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data))
-{
- struct dev_pm_set_opp_data *data;
-
- /* Another CPU that shares the OPP table has set the helper ? */
- if (opp_table->set_opp)
- return 0;
-
- data = kzalloc(sizeof(*data), GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- mutex_lock(&opp_table->lock);
- opp_table->set_opp_data = data;
- if (opp_table->sod_supplies) {
- data->old_opp.supplies = opp_table->sod_supplies;
- data->new_opp.supplies = opp_table->sod_supplies +
- opp_table->regulator_count;
- }
- mutex_unlock(&opp_table->lock);
-
- opp_table->set_opp = set_opp;
-
- return 0;
-}
-
-/**
- * _opp_unregister_set_opp_helper() - Releases resources blocked for set_opp helper
- * @opp_table: OPP table returned from _opp_register_set_opp_helper().
- *
- * Release resources blocked for platform specific set_opp helper.
- */
-static void _opp_unregister_set_opp_helper(struct opp_table *opp_table)
-{
- if (opp_table->set_opp) {
- opp_table->set_opp = NULL;
-
- mutex_lock(&opp_table->lock);
- kfree(opp_table->set_opp_data);
- opp_table->set_opp_data = NULL;
- mutex_unlock(&opp_table->lock);
- }
-}
-
-/**
* _opp_set_config_regulators_helper() - Register custom set regulator helper.
* @dev: Device for which the helper is getting registered.
* @config_regulators: Custom set regulator helper.
@@ -2446,10 +2330,8 @@ static void _opp_clear_config(struct opp_config_data *data)
_opp_put_regulators(data->opp_table);
if (data->flags & OPP_CONFIG_SUPPORTED_HW)
_opp_put_supported_hw(data->opp_table);
- if (data->flags & OPP_CONFIG_REGULATOR_HELPER) {
+ if (data->flags & OPP_CONFIG_REGULATOR_HELPER)
_opp_put_config_regulators_helper(data->opp_table);
- _opp_unregister_set_opp_helper(data->opp_table);
- }
if (data->flags & OPP_CONFIG_PROP_NAME)
_opp_put_prop_name(data->opp_table);
if (data->flags & OPP_CONFIG_CLK)
@@ -2520,16 +2402,6 @@ int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config)
data->flags |= OPP_CONFIG_PROP_NAME;
}
- /* Configure opp helper */
- if (config->set_opp) {
- ret = _opp_register_set_opp_helper(opp_table, dev,
- config->set_opp);
- if (ret)
- goto err;
-
- data->flags |= OPP_CONFIG_REGULATOR_HELPER;
- }
-
/* Configure config_regulators helper */
if (config->config_regulators) {
ret = _opp_set_config_regulators_helper(opp_table, dev,
diff --git a/drivers/opp/opp.h b/drivers/opp/opp.h
index 45fd40737159..13abe991e811 100644
--- a/drivers/opp/opp.h
+++ b/drivers/opp/opp.h
@@ -182,9 +182,6 @@ enum opp_table_access {
* @enabled: Set to true if the device's resources are enabled/configured.
* @genpd_performance_state: Device's power domain support performance state.
* @is_genpd: Marks if the OPP table belongs to a genpd.
- * @set_opp: Platform specific set_opp callback
- * @sod_supplies: Set opp data supplies
- * @set_opp_data: Data to be passed to set_opp callback
* @dentry: debugfs dentry pointer of the real device directory (not links).
* @dentry_name: Name of the real dentry.
*
@@ -234,10 +231,6 @@ struct opp_table {
bool genpd_performance_state;
bool is_genpd;
- int (*set_opp)(struct dev_pm_set_opp_data *data);
- struct dev_pm_opp_supply *sod_supplies;
- struct dev_pm_set_opp_data *set_opp_data;
-
#ifdef CONFIG_DEBUG_FS
struct dentry *dentry;
char dentry_name[NAME_MAX];