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From: Simon Guinot <simon.guinot-jKBdWWKqtFpg9hUCZPvPmw@public.gmane.org>
To: Jacek Anaszewski
	<j.anaszewski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
	Bryan Wu <cooloney-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Richard Purdie <rpurdie-Fm38FmjxZ/leoWH0uzbU5w@public.gmane.org>
Cc: Jason Cooper <jason-NLaQJdtUoK4Be96aLqz0jA@public.gmane.org>,
	Andrew Lunn <andrew-g2DYL2Zd6BY@public.gmane.org>,
	Gregory Clement
	<gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
	Sebastian Hesselbarth
	<sebastian.hesselbarth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Vincent Donnefort
	<vdonnefort-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Yoann Sculo <yoann-SEL7PEOQfnBQFI55V6+gNQ@public.gmane.org>,
	Linus Walleij
	<linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	Alexandre Courbot
	<gnurou-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	linux-leds-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH v6 5/5] leds: netxbig: set led_classdev max_brightness
Date: Sat, 26 Sep 2015 23:02:38 +0200	[thread overview]
Message-ID: <1443301358-2131-6-git-send-email-simon.guinot@sequanux.org> (raw)
In-Reply-To: <1443301358-2131-1-git-send-email-simon.guinot-jKBdWWKqtFpg9hUCZPvPmw@public.gmane.org>

This patch sets the led_classdev max_brightness to the maximum level
value supported by hardware. This allows to get rid of the brightness
conversion operation (from software [0:LED_FULL] to hardware ranges) in
brightness_set().

Signed-off-by: Simon Guinot <simon.guinot-jKBdWWKqtFpg9hUCZPvPmw@public.gmane.org>
---
 drivers/leds/leds-netxbig.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/leds/leds-netxbig.c b/drivers/leds/leds-netxbig.c
index b166fd9f4186..4b88b93244be 100644
--- a/drivers/leds/leds-netxbig.c
+++ b/drivers/leds/leds-netxbig.c
@@ -116,7 +116,6 @@ struct netxbig_led_data {
 	int			mode_addr;
 	int			*mode_val;
 	int			bright_addr;
-	int			bright_max;
 	struct			netxbig_led_timer *timer;
 	int			num_timer;
 	enum netxbig_led_mode	mode;
@@ -178,7 +177,7 @@ static void netxbig_led_set(struct led_classdev *led_cdev,
 	struct netxbig_led_data *led_dat =
 		container_of(led_cdev, struct netxbig_led_data, cdev);
 	enum netxbig_led_mode mode;
-	int mode_val, bright_val;
+	int mode_val;
 	int set_brightness = 1;
 	unsigned long flags;
 
@@ -204,12 +203,9 @@ static void netxbig_led_set(struct led_classdev *led_cdev,
 	 * SATA LEDs. So, change the brightness setting for a single
 	 * SATA LED will affect all the others.
 	 */
-	if (set_brightness) {
-		bright_val = DIV_ROUND_UP(value * led_dat->bright_max,
-					  LED_FULL);
+	if (set_brightness)
 		gpio_ext_set_value(led_dat->gpio_ext,
-				   led_dat->bright_addr, bright_val);
-	}
+				   led_dat->bright_addr, value);
 
 	spin_unlock_irqrestore(&led_dat->lock, flags);
 }
@@ -306,11 +302,11 @@ static int create_netxbig_led(struct platform_device *pdev,
 	 */
 	led_dat->sata = 0;
 	led_dat->cdev.brightness = LED_OFF;
+	led_dat->cdev.max_brightness = template->bright_max;
 	led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME;
 	led_dat->mode_addr = template->mode_addr;
 	led_dat->mode_val = template->mode_val;
 	led_dat->bright_addr = template->bright_addr;
-	led_dat->bright_max = template->bright_max;
 	led_dat->timer = pdata->timer;
 	led_dat->num_timer = pdata->num_timer;
 	/*
-- 
2.1.4

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  parent reply	other threads:[~2015-09-26 21:02 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-26 21:02 [PATCH v6 0/5] Add DT support for netxbig LEDs Simon Guinot
2015-09-26 21:02 ` [PATCH v6 1/5] leds: netxbig: add device tree binding Simon Guinot
2015-09-26 21:02 ` [PATCH v6 2/5] ARM: Kirkwood: add LED DT entries for netxbig boards Simon Guinot
2015-09-26 21:02 ` [PATCH v6 3/5] ARM: mvebu: remove static LED setup " Simon Guinot
2015-09-26 21:02 ` [PATCH v6 4/5] leds: netxbig: convert to use the devm_ functions Simon Guinot
     [not found] ` <1443301358-2131-1-git-send-email-simon.guinot-jKBdWWKqtFpg9hUCZPvPmw@public.gmane.org>
2015-09-26 21:02   ` Simon Guinot [this message]
2015-09-28  8:02     ` [PATCH v6 5/5] leds: netxbig: set led_classdev max_brightness Jacek Anaszewski
2015-09-28  9:19       ` Simon Guinot
2015-09-28 10:15         ` Jacek Anaszewski
     [not found]           ` <5609133A.3050802-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2015-09-28 11:50             ` Simon Guinot
2015-09-28 12:24               ` Jacek Anaszewski
2015-09-28 13:25                 ` Simon Guinot
2015-09-28 13:43                   ` Jacek Anaszewski
2015-10-09  9:43 ` [PATCH v6 0/5] Add DT support for netxbig LEDs Jacek Anaszewski
2015-10-15  7:16   ` Gregory CLEMENT
2015-10-15  8:11     ` Jacek Anaszewski

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