linux-kernel - [PATCH v6 6/6] leds: as3645a: Update the LED label generation

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Date:   Fri, 1 Dec 2017 10:56:13 -0600
From:   Dan Murphy <dmurphy@...com>
To:     <rpurdie@...ys.net>, <jacek.anaszewski@...il.com>, <pavel@....cz>
CC:     <linux-leds@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Dan Murphy <dmurphy@...com>
Subject: [PATCH v6 6/6] leds: as3645a: Update the LED label generation

Update the LED label creationg to call the
of_led_compose_name api to generate a label.

Signed-off-by: Dan Murphy <dmurphy@...com>
---

v6 - New patch to use the new LED class API

 drivers/leds/leds-as3645a.c | 24 +++++++++---------------
 1 file changed, 9 insertions(+), 15 deletions(-)

diff --git a/drivers/leds/leds-as3645a.c b/drivers/leds/leds-as3645a.c
index 9a257f969300..5a29db115277 100644
--- a/drivers/leds/leds-as3645a.c
+++ b/drivers/leds/leds-as3645a.c
@@ -27,6 +27,7 @@
 #include <linux/mutex.h>
 #include <linux/of.h>
 #include <linux/slab.h>
+#include <uapi/linux/uleds.h>
 
 #include <media/v4l2-flash-led-class.h>
 
@@ -133,8 +134,8 @@ struct as3645a_config {
 };
 
 struct as3645a_names {
-	char flash[32];
-	char indicator[32];
+	char flash[LED_MAX_NAME_SIZE];
+	char indicator[LED_MAX_NAME_SIZE];
 };
 
 struct as3645a {
@@ -496,7 +497,6 @@ static int as3645a_parse_node(struct as3645a *flash,
 {
 	struct as3645a_config *cfg = &flash->cfg;
 	struct device_node *child;
-	const char *name;
 	int rval;
 
 	for_each_child_of_node(node, child) {
@@ -523,12 +523,9 @@ static int as3645a_parse_node(struct as3645a *flash,
 		return -ENODEV;
 	}
 
-	rval = of_property_read_string(flash->flash_node, "label", &name);
-	if (!rval)
-		strlcpy(names->flash, name, sizeof(names->flash));
-	else
-		snprintf(names->flash, sizeof(names->flash),
-			 "%s:flash", node->name);
+	of_led_compose_name(node, flash->flash_node, "flash",
+				sizeof("flash"),
+				names->flash);
 
 	rval = of_property_read_u32(flash->flash_node, "flash-timeout-us",
 				    &cfg->flash_timeout_us);
@@ -567,12 +564,9 @@ static int as3645a_parse_node(struct as3645a *flash,
 		goto out_err;
 	}
 
-	rval = of_property_read_string(flash->indicator_node, "label", &name);
-	if (!rval)
-		strlcpy(names->indicator, name, sizeof(names->indicator));
-	else
-		snprintf(names->indicator, sizeof(names->indicator),
-			 "%s:indicator", node->name);
+	of_led_compose_name(node, flash->indicator_node, "indicator",
+				sizeof("indicator"),
+				names->indicator);
 
 	rval = of_property_read_u32(flash->indicator_node, "led-max-microamp",
 				    &cfg->indicator_max_ua);
-- 
2.15.0.124.g7668cbc60