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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-03-25 16:05:00 +0200 |
|---|---|---|
| committer | Jacek Anaszewski <jacek.anaszewski@gmail.com> | 2019-03-31 20:12:30 +0200 |
| commit | 967f69de81478c491f49681d10c71c66b6e7fb96 (patch) | |
| tree | b4a8d5f4f100c6aaf7973f25520ba0fd4f42a66c /drivers/leds | |
| parent | 1c310074ad6cf5197d47b83cc64c272c538d7e1d (diff) | |
| download | linux-967f69de81478c491f49681d10c71c66b6e7fb96.tar.bz2 | |
leds: pca955x: Make use of device property API
Make use of device property API in this driver so that both OF based
system and ACPI based system can use this driver.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/leds-pca955x.c | 35 |
1 files changed, 13 insertions, 22 deletions
diff --git a/drivers/leds/leds-pca955x.c b/drivers/leds/leds-pca955x.c index f023729353b5..a9f5dad55956 100644 --- a/drivers/leds/leds-pca955x.c +++ b/drivers/leds/leds-pca955x.c @@ -47,8 +47,8 @@ #include <linux/i2c.h> #include <linux/leds.h> #include <linux/module.h> -#include <linux/of_device.h> #include <linux/of.h> +#include <linux/property.h> #include <linux/slab.h> #include <linux/string.h> @@ -363,16 +363,14 @@ static int pca955x_gpio_direction_output(struct gpio_chip *gc, } #endif /* CONFIG_LEDS_PCA955X_GPIO */ -#if IS_ENABLED(CONFIG_OF) static struct pca955x_platform_data * -pca955x_pdata_of_init(struct i2c_client *client, struct pca955x_chipdef *chip) +pca955x_get_pdata(struct i2c_client *client, struct pca955x_chipdef *chip) { - struct device_node *np = client->dev.of_node; - struct device_node *child; struct pca955x_platform_data *pdata; + struct fwnode_handle *child; int count; - count = of_get_child_count(np); + count = device_get_child_node_count(&client->dev); if (!count || count > chip->bits) return ERR_PTR(-ENODEV); @@ -386,24 +384,25 @@ pca955x_pdata_of_init(struct i2c_client *client, struct pca955x_chipdef *chip) if (!pdata->leds) return ERR_PTR(-ENOMEM); - for_each_child_of_node(np, child) { + device_for_each_child_node(&client->dev, child) { const char *name; u32 reg; int res; - res = of_property_read_u32(child, "reg", ®); + res = fwnode_property_read_u32(child, "reg", ®); if ((res != 0) || (reg >= chip->bits)) continue; - if (of_property_read_string(child, "label", &name)) - name = child->name; + res = fwnode_property_read_string(child, "label", &name); + if ((res != 0) && is_of_node(child)) + name = to_of_node(child)->name; snprintf(pdata->leds[reg].name, sizeof(pdata->leds[reg].name), "%s", name); pdata->leds[reg].type = PCA955X_TYPE_LED; - of_property_read_u32(child, "type", &pdata->leds[reg].type); - of_property_read_string(child, "linux,default-trigger", + fwnode_property_read_u32(child, "type", &pdata->leds[reg].type); + fwnode_property_read_string(child, "linux,default-trigger", &pdata->leds[reg].default_trigger); } @@ -419,15 +418,7 @@ static const struct of_device_id of_pca955x_match[] = { { .compatible = "nxp,pca9553", .data = (void *)pca9553 }, {}, }; - MODULE_DEVICE_TABLE(of, of_pca955x_match); -#else -static struct pca955x_platform_data * -pca955x_pdata_of_init(struct i2c_client *client, struct pca955x_chipdef *chip) -{ - return ERR_PTR(-ENODEV); -} -#endif static int pca955x_probe(struct i2c_client *client, const struct i2c_device_id *id) @@ -444,7 +435,7 @@ static int pca955x_probe(struct i2c_client *client, adapter = to_i2c_adapter(client->dev.parent); pdata = dev_get_platdata(&client->dev); if (!pdata) { - pdata = pca955x_pdata_of_init(client, chip); + pdata = pca955x_get_pdata(client, chip); if (IS_ERR(pdata)) return PTR_ERR(pdata); } @@ -583,7 +574,7 @@ static int pca955x_probe(struct i2c_client *client, static struct i2c_driver pca955x_driver = { .driver = { .name = "leds-pca955x", - .of_match_table = of_match_ptr(of_pca955x_match), + .of_match_table = of_pca955x_match, }, .probe = pca955x_probe, .id_table = pca955x_id, |