linux-kernel - Re: [PATCH v3 13/25] leds: lm3692x: Use generic support for composing LED names

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Date:   Thu, 11 Apr 2019 10:29:35 -0500
From:   Dan Murphy <dmurphy@...com>
To:     Jacek Anaszewski <jacek.anaszewski@...il.com>,
        <linux-leds@...r.kernel.org>
CC:     <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <pavel@....cz>, <robh@...nel.org>
Subject: Re: [PATCH v3 13/25] leds: lm3692x: Use generic support for composing
 LED names

Jacek

On 3/31/19 12:54 PM, Jacek Anaszewski wrote:
> Switch to using generic LED support for composing LED class
> device name.
>
> At this occassion remove initialization of struct led_classdev's
> dev->of_node property in the driver, since now it will be taken from
> fwnode assigned to struct led_init_data and passed to the new
> devm_led_classdev_register_ext() API.
>
> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@...il.com>
> Cc: Dan Murphy <dmurphy@...com>
> ---
>  drivers/leds/leds-lm3692x.c | 22 ++++++----------------
>  1 file changed, 6 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/leds/leds-lm3692x.c b/drivers/leds/leds-lm3692x.c
> index 4f413a7c5f05..d2b30074d87a 100644
> --- a/drivers/leds/leds-lm3692x.c
> +++ b/drivers/leds/leds-lm3692x.c
> @@ -13,7 +13,6 @@
>  #include <linux/regmap.h>
>  #include <linux/regulator/consumer.h>
>  #include <linux/slab.h>
> -#include <uapi/linux/uleds.h>
>  
>  #define LM36922_MODEL	0
>  #define LM36923_MODEL	1
> @@ -103,7 +102,6 @@
>   * @regmap - Devices register map
>   * @enable_gpio - VDDIO/EN gpio to enable communication interface
>   * @regulator - LED supply regulator pointer
> - * @label - LED label
>   * @led_enable - LED sync to be enabled
>   * @model_id - Current device model ID enumerated
>   */
> @@ -114,7 +112,6 @@ struct lm3692x_led {
>  	struct regmap *regmap;
>  	struct gpio_desc *enable_gpio;
>  	struct regulator *regulator;
> -	char label[LED_MAX_NAME_SIZE];
>  	int led_enable;
>  	int model_id;
>  };
> @@ -325,7 +322,7 @@ static int lm3692x_init(struct lm3692x_led *led)
>  static int lm3692x_probe_dt(struct lm3692x_led *led)
>  {
>  	struct fwnode_handle *child = NULL;
> -	const char *name;
> +	struct led_init_data init_data;
>  	int ret;
>  
>  	led->enable_gpio = devm_gpiod_get_optional(&led->client->dev,
> @@ -350,30 +347,23 @@ static int lm3692x_probe_dt(struct lm3692x_led *led)
>  	fwnode_property_read_string(child, "linux,default-trigger",
>  				    &led->led_dev.default_trigger);
>  
> -	ret = fwnode_property_read_string(child, "label", &name);
> -	if (ret)
> -		snprintf(led->label, sizeof(led->label),
> -			"%s::", led->client->name);
> -	else
> -		snprintf(led->label, sizeof(led->label),
> -			 "%s:%s", led->client->name, name);
> -
>  	ret = fwnode_property_read_u32(child, "reg", &led->led_enable);
>  	if (ret) {
>  		dev_err(&led->client->dev, "reg DT property missing\n");
>  		return ret;
>  	}
>  
> -	led->led_dev.name = led->label;
> +	init_data.fwnode = child;
> +	init_data.led_hw_name = led->client->name;
> +	init_data.default_label = ":";
>  
> -	ret = devm_led_classdev_register(&led->client->dev, &led->led_dev);
> +	ret = devm_led_classdev_register_ext(&led->client->dev, &led->led_dev,
> +					     &init_data);
>  	if (ret) {
>  		dev_err(&led->client->dev, "led register err: %d\n", ret);
>  		return ret;
>  	}
>  
> -	led->led_dev.dev->of_node = to_of_node(child);
> -
>  	return 0;
>  }
>  

Tested-by: Dan Murphy <dmurphy@...com>