diff options
| -rw-r--r-- | drivers/cpufreq/sun50i-cpufreq-nvmem.c | 31 | ||||
| -rw-r--r-- | drivers/opp/core.c | 55 | ||||
| -rw-r--r-- | include/linux/pm_opp.h | 23 |
3 files changed, 46 insertions, 63 deletions
diff --git a/drivers/cpufreq/sun50i-cpufreq-nvmem.c b/drivers/cpufreq/sun50i-cpufreq-nvmem.c index 75e1bf3a08f7..a4922580ce06 100644 --- a/drivers/cpufreq/sun50i-cpufreq-nvmem.c +++ b/drivers/cpufreq/sun50i-cpufreq-nvmem.c @@ -86,20 +86,20 @@ static int sun50i_cpufreq_get_efuse(u32 *versions) static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev) { - struct opp_table **opp_tables; + int *opp_tokens; char name[MAX_NAME_LEN]; unsigned int cpu; u32 speed = 0; int ret; - opp_tables = kcalloc(num_possible_cpus(), sizeof(*opp_tables), + opp_tokens = kcalloc(num_possible_cpus(), sizeof(*opp_tokens), GFP_KERNEL); - if (!opp_tables) + if (!opp_tokens) return -ENOMEM; ret = sun50i_cpufreq_get_efuse(&speed); if (ret) { - kfree(opp_tables); + kfree(opp_tokens); return ret; } @@ -113,9 +113,9 @@ static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev) goto free_opp; } - opp_tables[cpu] = dev_pm_opp_set_prop_name(cpu_dev, name); - if (IS_ERR(opp_tables[cpu])) { - ret = PTR_ERR(opp_tables[cpu]); + opp_tokens[cpu] = dev_pm_opp_set_prop_name(cpu_dev, name); + if (opp_tokens[cpu] < 0) { + ret = opp_tokens[cpu]; pr_err("Failed to set prop name\n"); goto free_opp; } @@ -124,7 +124,7 @@ static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev) cpufreq_dt_pdev = platform_device_register_simple("cpufreq-dt", -1, NULL, 0); if (!IS_ERR(cpufreq_dt_pdev)) { - platform_set_drvdata(pdev, opp_tables); + platform_set_drvdata(pdev, opp_tokens); return 0; } @@ -132,27 +132,24 @@ static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev) pr_err("Failed to register platform device\n"); free_opp: - for_each_possible_cpu(cpu) { - if (IS_ERR_OR_NULL(opp_tables[cpu])) - break; - dev_pm_opp_put_prop_name(opp_tables[cpu]); - } - kfree(opp_tables); + for_each_possible_cpu(cpu) + dev_pm_opp_put_prop_name(opp_tokens[cpu]); + kfree(opp_tokens); return ret; } static int sun50i_cpufreq_nvmem_remove(struct platform_device *pdev) { - struct opp_table **opp_tables = platform_get_drvdata(pdev); + int *opp_tokens = platform_get_drvdata(pdev); unsigned int cpu; platform_device_unregister(cpufreq_dt_pdev); for_each_possible_cpu(cpu) - dev_pm_opp_put_prop_name(opp_tables[cpu]); + dev_pm_opp_put_prop_name(opp_tokens[cpu]); - kfree(opp_tables); + kfree(opp_tokens); return 0; } diff --git a/drivers/opp/core.c b/drivers/opp/core.c index 458584994c2b..1745e25c1eaf 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -1997,7 +1997,7 @@ static void _opp_put_supported_hw(struct opp_table *opp_table) } /** - * dev_pm_opp_set_prop_name() - Set prop-extn name + * _opp_set_prop_name() - Set prop-extn name * @dev: Device for which the prop-name has to be set. * @name: name to postfix to properties. * @@ -2006,50 +2006,33 @@ static void _opp_put_supported_hw(struct opp_table *opp_table) * which the extension will apply are opp-microvolt and opp-microamp. OPP core * should postfix the property name with -<name> while looking for them. */ -struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name) +static int _opp_set_prop_name(struct opp_table *opp_table, const char *name) { - struct opp_table *opp_table; - - opp_table = _add_opp_table(dev, false); - if (IS_ERR(opp_table)) - return opp_table; - - /* Make sure there are no concurrent readers while updating opp_table */ - WARN_ON(!list_empty(&opp_table->opp_list)); - /* Another CPU that shares the OPP table has set the property ? */ - if (opp_table->prop_name) - return opp_table; - - opp_table->prop_name = kstrdup(name, GFP_KERNEL); if (!opp_table->prop_name) { - dev_pm_opp_put_opp_table(opp_table); - return ERR_PTR(-ENOMEM); + opp_table->prop_name = kstrdup(name, GFP_KERNEL); + if (!opp_table->prop_name) + return -ENOMEM; } - return opp_table; + return 0; } -EXPORT_SYMBOL_GPL(dev_pm_opp_set_prop_name); /** - * dev_pm_opp_put_prop_name() - Releases resources blocked for prop-name - * @opp_table: OPP table returned by dev_pm_opp_set_prop_name(). + * _opp_put_prop_name() - Releases resources blocked for prop-name + * @opp_table: OPP table returned by _opp_set_prop_name(). * * This is required only for the V2 bindings, and is called for a matching - * dev_pm_opp_set_prop_name(). Until this is called, the opp_table structure + * _opp_set_prop_name(). Until this is called, the opp_table structure * will not be freed. */ -void dev_pm_opp_put_prop_name(struct opp_table *opp_table) +static void _opp_put_prop_name(struct opp_table *opp_table) { - if (unlikely(!opp_table)) - return; - - kfree(opp_table->prop_name); - opp_table->prop_name = NULL; - - dev_pm_opp_put_opp_table(opp_table); + if (opp_table->prop_name) { + kfree(opp_table->prop_name); + opp_table->prop_name = NULL; + } } -EXPORT_SYMBOL_GPL(dev_pm_opp_put_prop_name); /** * _opp_set_regulators() - Set regulator names for the device @@ -2414,7 +2397,7 @@ static void _opp_clear_config(struct opp_config_data *data) if (data->flags & OPP_CONFIG_REGULATOR_HELPER) _opp_unregister_set_opp_helper(data->opp_table); if (data->flags & OPP_CONFIG_PROP_NAME) - dev_pm_opp_put_prop_name(data->opp_table); + _opp_put_prop_name(data->opp_table); if (data->flags & OPP_CONFIG_CLK) _opp_put_clknames(data->opp_table); @@ -2441,7 +2424,7 @@ static void _opp_clear_config(struct opp_config_data *data) */ int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config) { - struct opp_table *opp_table, *err; + struct opp_table *opp_table; struct opp_config_data *data; unsigned int id; int ret; @@ -2476,11 +2459,9 @@ int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config) /* Configure property names */ if (config->prop_name) { - err = dev_pm_opp_set_prop_name(dev, config->prop_name); - if (IS_ERR(err)) { - ret = PTR_ERR(err); + ret = _opp_set_prop_name(opp_table, config->prop_name); + if (ret) goto err; - } data->flags |= OPP_CONFIG_PROP_NAME; } diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 20e1e5060a8a..f995ca1406e8 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -184,8 +184,6 @@ int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config); int devm_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config); void dev_pm_opp_clear_config(int token); -struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name); -void dev_pm_opp_put_prop_name(struct opp_table *opp_table); struct dev_pm_opp *dev_pm_opp_xlate_required_opp(struct opp_table *src_table, struct opp_table *dst_table, struct dev_pm_opp *src_opp); int dev_pm_opp_xlate_performance_state(struct opp_table *src_table, struct opp_table *dst_table, unsigned int pstate); int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq); @@ -357,13 +355,6 @@ static inline int dev_pm_opp_unregister_notifier(struct device *dev, struct noti return -EOPNOTSUPP; } -static inline struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name) -{ - return ERR_PTR(-EOPNOTSUPP); -} - -static inline void dev_pm_opp_put_prop_name(struct opp_table *opp_table) {} - static inline int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config) { return -EOPNOTSUPP; @@ -652,5 +643,19 @@ static inline int devm_pm_opp_attach_genpd(struct device *dev, return devm_pm_opp_set_config(dev, &config); } +/* prop-name helpers */ +static inline int dev_pm_opp_set_prop_name(struct device *dev, const char *name) +{ + struct dev_pm_opp_config config = { + .prop_name = name, + }; + + return dev_pm_opp_set_config(dev, &config); +} + +static inline void dev_pm_opp_put_prop_name(int token) +{ + dev_pm_opp_clear_config(token); +} #endif /* __LINUX_OPP_H__ */ |