diff options
| -rw-r--r-- | drivers/devfreq/devfreq-event.c | 14 | ||||
| -rw-r--r-- | drivers/devfreq/exynos-bus.c | 5 | ||||
| -rw-r--r-- | drivers/devfreq/rk3399_dmc.c | 2 | ||||
| -rw-r--r-- | drivers/memory/samsung/exynos5422-dmc.c | 6 | ||||
| -rw-r--r-- | include/linux/devfreq-event.h | 14 |
5 files changed, 26 insertions, 15 deletions
diff --git a/drivers/devfreq/devfreq-event.c b/drivers/devfreq/devfreq-event.c index 56efbeb7851e..6765c03334bc 100644 --- a/drivers/devfreq/devfreq-event.c +++ b/drivers/devfreq/devfreq-event.c @@ -213,20 +213,21 @@ EXPORT_SYMBOL_GPL(devfreq_event_reset_event); * devfreq_event_get_edev_by_phandle() - Get the devfreq-event dev from * devicetree. * @dev : the pointer to the given device + * @phandle_name: name of property holding a phandle value * @index : the index into list of devfreq-event device * * Note that this function return the pointer of devfreq-event device. */ struct devfreq_event_dev *devfreq_event_get_edev_by_phandle(struct device *dev, - int index) + const char *phandle_name, int index) { struct device_node *node; struct devfreq_event_dev *edev; - if (!dev->of_node) + if (!dev->of_node || !phandle_name) return ERR_PTR(-EINVAL); - node = of_parse_phandle(dev->of_node, "devfreq-events", index); + node = of_parse_phandle(dev->of_node, phandle_name, index); if (!node) return ERR_PTR(-ENODEV); @@ -258,19 +259,20 @@ EXPORT_SYMBOL_GPL(devfreq_event_get_edev_by_phandle); /** * devfreq_event_get_edev_count() - Get the count of devfreq-event dev * @dev : the pointer to the given device + * @phandle_name: name of property holding a phandle value * * Note that this function return the count of devfreq-event devices. */ -int devfreq_event_get_edev_count(struct device *dev) +int devfreq_event_get_edev_count(struct device *dev, const char *phandle_name) { int count; - if (!dev->of_node) { + if (!dev->of_node || !phandle_name) { dev_err(dev, "device does not have a device node entry\n"); return -EINVAL; } - count = of_property_count_elems_of_size(dev->of_node, "devfreq-events", + count = of_property_count_elems_of_size(dev->of_node, phandle_name, sizeof(u32)); if (count < 0) { dev_err(dev, diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c index 58dbf51f0983..1e684a448c9e 100644 --- a/drivers/devfreq/exynos-bus.c +++ b/drivers/devfreq/exynos-bus.c @@ -193,7 +193,7 @@ static int exynos_bus_parent_parse_of(struct device_node *np, * Get the devfreq-event devices to get the current utilization of * buses. This raw data will be used in devfreq ondemand governor. */ - count = devfreq_event_get_edev_count(dev); + count = devfreq_event_get_edev_count(dev, "devfreq-events"); if (count < 0) { dev_err(dev, "failed to get the count of devfreq-event dev\n"); ret = count; @@ -209,7 +209,8 @@ static int exynos_bus_parent_parse_of(struct device_node *np, } for (i = 0; i < count; i++) { - bus->edev[i] = devfreq_event_get_edev_by_phandle(dev, i); + bus->edev[i] = devfreq_event_get_edev_by_phandle(dev, + "devfreq-events", i); if (IS_ERR(bus->edev[i])) { ret = -EPROBE_DEFER; goto err_regulator; diff --git a/drivers/devfreq/rk3399_dmc.c b/drivers/devfreq/rk3399_dmc.c index 027769e39f9b..2e912166a993 100644 --- a/drivers/devfreq/rk3399_dmc.c +++ b/drivers/devfreq/rk3399_dmc.c @@ -341,7 +341,7 @@ static int rk3399_dmcfreq_probe(struct platform_device *pdev) return PTR_ERR(data->dmc_clk); } - data->edev = devfreq_event_get_edev_by_phandle(dev, 0); + data->edev = devfreq_event_get_edev_by_phandle(dev, "devfreq-events", 0); if (IS_ERR(data->edev)) return -EPROBE_DEFER; diff --git a/drivers/memory/samsung/exynos5422-dmc.c b/drivers/memory/samsung/exynos5422-dmc.c index b9c7956e5031..714d1f6f077c 100644 --- a/drivers/memory/samsung/exynos5422-dmc.c +++ b/drivers/memory/samsung/exynos5422-dmc.c @@ -1293,7 +1293,8 @@ static int exynos5_performance_counters_init(struct exynos5_dmc *dmc) int counters_size; int ret, i; - dmc->num_counters = devfreq_event_get_edev_count(dmc->dev); + dmc->num_counters = devfreq_event_get_edev_count(dmc->dev, + "devfreq-events"); if (dmc->num_counters < 0) { dev_err(dmc->dev, "could not get devfreq-event counters\n"); return dmc->num_counters; @@ -1306,7 +1307,8 @@ static int exynos5_performance_counters_init(struct exynos5_dmc *dmc) for (i = 0; i < dmc->num_counters; i++) { dmc->counter[i] = - devfreq_event_get_edev_by_phandle(dmc->dev, i); + devfreq_event_get_edev_by_phandle(dmc->dev, + "devfreq-events", i); if (IS_ERR_OR_NULL(dmc->counter[i])) return -EPROBE_DEFER; } diff --git a/include/linux/devfreq-event.h b/include/linux/devfreq-event.h index f14f17f8cb7f..4a50a5c71a5f 100644 --- a/include/linux/devfreq-event.h +++ b/include/linux/devfreq-event.h @@ -106,8 +106,11 @@ extern int devfreq_event_get_event(struct devfreq_event_dev *edev, struct devfreq_event_data *edata); extern int devfreq_event_reset_event(struct devfreq_event_dev *edev); extern struct devfreq_event_dev *devfreq_event_get_edev_by_phandle( - struct device *dev, int index); -extern int devfreq_event_get_edev_count(struct device *dev); + struct device *dev, + const char *phandle_name, + int index); +extern int devfreq_event_get_edev_count(struct device *dev, + const char *phandle_name); extern struct devfreq_event_dev *devfreq_event_add_edev(struct device *dev, struct devfreq_event_desc *desc); extern int devfreq_event_remove_edev(struct devfreq_event_dev *edev); @@ -152,12 +155,15 @@ static inline int devfreq_event_reset_event(struct devfreq_event_dev *edev) } static inline struct devfreq_event_dev *devfreq_event_get_edev_by_phandle( - struct device *dev, int index) + struct device *dev, + const char *phandle_name, + int index) { return ERR_PTR(-EINVAL); } -static inline int devfreq_event_get_edev_count(struct device *dev) +static inline int devfreq_event_get_edev_count(struct device *dev, + const char *phandle_name) { return -EINVAL; } |