From 69a9b172adbde580a645767a161bb4cc9dc63d9b Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Tue, 12 Jul 2022 12:08:34 +0200 Subject: [PATCH] leds: is31fl319x: Make use of device properties Convert the module to be property provider agnostic and allow it to be used on non-OF platforms. Add mod_devicetable.h include. Signed-off-by: Andy Shevchenko Signed-off-by: Vincent Knecht Signed-off-by: Pavel Machek --- drivers/leds/Kconfig | 2 +- drivers/leds/leds-is31fl319x.c | 44 +++++++++++++++++++----------------------- 2 files changed, 21 insertions(+), 25 deletions(-) diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index eaba0a8..499d0f2 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -697,7 +697,7 @@ config LEDS_MENF21BMC config LEDS_IS31FL319X tristate "LED Support for ISSI IS31FL319x I2C LED controller family" - depends on LEDS_CLASS && I2C && OF + depends on LEDS_CLASS && I2C select REGMAP_I2C help This option enables support for LEDs connected to ISSI IS31FL319x diff --git a/drivers/leds/leds-is31fl319x.c b/drivers/leds/leds-is31fl319x.c index 056cf3b..b1a0ca3 100644 --- a/drivers/leds/leds-is31fl319x.c +++ b/drivers/leds/leds-is31fl319x.c @@ -11,9 +11,9 @@ #include #include #include +#include #include -#include -#include +#include #include #include #include @@ -362,25 +362,23 @@ static const struct of_device_id of_is31fl319x_match[] = { }; MODULE_DEVICE_TABLE(of, of_is31fl319x_match); -static int is31fl319x_parse_child_dt(const struct device *dev, - const struct device_node *child, +static int is31fl319x_parse_child_fw(const struct device *dev, + const struct fwnode_handle *child, struct is31fl319x_led *led, struct is31fl319x_chip *is31) { struct led_classdev *cdev = &led->cdev; int ret; - if (of_property_read_string(child, "label", &cdev->name)) - cdev->name = child->name; + if (fwnode_property_read_string(child, "label", &cdev->name)) + cdev->name = fwnode_get_name(child); - ret = of_property_read_string(child, "linux,default-trigger", - &cdev->default_trigger); + ret = fwnode_property_read_string(child, "linux,default-trigger", &cdev->default_trigger); if (ret < 0 && ret != -EINVAL) /* is optional */ return ret; led->max_microamp = is31->cdef->current_default; - ret = of_property_read_u32(child, "led-max-microamp", - &led->max_microamp); + ret = fwnode_property_read_u32(child, "led-max-microamp", &led->max_microamp); if (!ret) { if (led->max_microamp < is31->cdef->current_min) return -EINVAL; /* not supported */ @@ -391,16 +389,12 @@ static int is31fl319x_parse_child_dt(const struct device *dev, return 0; } -static int is31fl319x_parse_dt(struct device *dev, - struct is31fl319x_chip *is31) +static int is31fl319x_parse_fw(struct device *dev, struct is31fl319x_chip *is31) { - struct device_node *np = dev_of_node(dev), *child; + struct fwnode_handle *fwnode = dev_fwnode(dev), *child; int count; int ret; - if (!np) - return -ENODEV; - is31->shutdown_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH); if (IS_ERR(is31->shutdown_gpio)) { ret = PTR_ERR(is31->shutdown_gpio); @@ -410,7 +404,9 @@ static int is31fl319x_parse_dt(struct device *dev, is31->cdef = device_get_match_data(dev); - count = of_get_available_child_count(np); + count = 0; + fwnode_for_each_available_child_node(fwnode, child) + count++; dev_dbg(dev, "probing with %d leds defined in DT\n", count); @@ -420,11 +416,11 @@ static int is31fl319x_parse_dt(struct device *dev, return -ENODEV; } - for_each_available_child_of_node(np, child) { + fwnode_for_each_available_child_node(fwnode, child) { struct is31fl319x_led *led; u32 reg; - ret = of_property_read_u32(child, "reg", ®); + ret = fwnode_property_read_u32(child, "reg", ®); if (ret) { dev_err(dev, "Failed to read led 'reg' property\n"); goto put_child_node; @@ -444,7 +440,7 @@ static int is31fl319x_parse_dt(struct device *dev, goto put_child_node; } - ret = is31fl319x_parse_child_dt(dev, child, led, is31); + ret = is31fl319x_parse_child_fw(dev, child, led, is31); if (ret) { dev_err(dev, "led %u DT parsing failed\n", reg); goto put_child_node; @@ -455,7 +451,7 @@ static int is31fl319x_parse_dt(struct device *dev, is31->audio_gain_db = 0; if (is31->cdef->is_3196or3199) { - ret = of_property_read_u32(np, "audio-gain-db", &is31->audio_gain_db); + ret = fwnode_property_read_u32(fwnode, "audio-gain-db", &is31->audio_gain_db); if (!ret) is31->audio_gain_db = min(is31->audio_gain_db, IS31FL3196_AUDIO_GAIN_DB_MAX); @@ -464,7 +460,7 @@ static int is31fl319x_parse_dt(struct device *dev, return 0; put_child_node: - of_node_put(child); + fwnode_handle_put(child); return ret; } @@ -521,7 +517,7 @@ static int is31fl319x_probe(struct i2c_client *client, mutex_init(&is31->lock); - err = is31fl319x_parse_dt(&client->dev, is31); + err = is31fl319x_parse_fw(&client->dev, is31); if (err) goto free_mutex; @@ -619,7 +615,7 @@ MODULE_DEVICE_TABLE(i2c, is31fl319x_id); static struct i2c_driver is31fl319x_driver = { .driver = { .name = "leds-is31fl319x", - .of_match_table = of_match_ptr(of_is31fl319x_match), + .of_match_table = of_is31fl319x_match, }, .probe = is31fl319x_probe, .remove = is31fl319x_remove, -- 2.7.4