linux-kernel - [PATCH v2] RX-51: Add missing max_current to rx51_lp5523_led

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Date:	Mon, 23 Sep 2013 14:50:12 +0200
From:	Pali Rohár <pali.rohar@...il.com>
To:	Tony Lindgren <tony@...mide.com>
Cc:	Russell King <linux@....linux.org.uk>, linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org, joerg@...nmoko.org
Subject: [PATCH v2] RX-51: Add missing max_current to rx51_lp5523_led_config

Hi Tony,

here is new version (v2) of patch which adding max_current values to rx51 board data.
According to joerg safe value for max_current is 100 (10 mA).


RX-51: Add missing max_current to rx51_lp5523_led_config

File drivers/leds/leds-lp55xx-common.c refuse to change led_current sysfs
attribute if value is higher than max_current specified in board file. By default
global C variables are zero, so changing always failed. This patch adding missing
max_current and setting it to max safe value 100 (10 mA).

Signed-off-by: Pali Rohár <pali.rohar@...il.com>
---
 arch/arm/mach-omap2/board-rx51-peripherals.c |    9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index c3270c0..f6fe388 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -167,38 +167,47 @@ static struct lp55xx_led_config rx51_lp5523_led_config[] = {
 		.name		= "lp5523:kb1",
 		.chan_nr	= 0,
 		.led_current	= 50,
+		.max_current	= 100,
 	}, {
 		.name		= "lp5523:kb2",
 		.chan_nr	= 1,
 		.led_current	= 50,
+		.max_current	= 100,
 	}, {
 		.name		= "lp5523:kb3",
 		.chan_nr	= 2,
 		.led_current	= 50,
+		.max_current	= 100,
 	}, {
 		.name		= "lp5523:kb4",
 		.chan_nr	= 3,
 		.led_current	= 50,
+		.max_current	= 100,
 	}, {
 		.name		= "lp5523:b",
 		.chan_nr	= 4,
 		.led_current	= 50,
+		.max_current	= 100,
 	}, {
 		.name		= "lp5523:g",
 		.chan_nr	= 5,
 		.led_current	= 50,
+		.max_current	= 100,
 	}, {
 		.name		= "lp5523:r",
 		.chan_nr	= 6,
 		.led_current	= 50,
+		.max_current	= 100,
 	}, {
 		.name		= "lp5523:kb5",
 		.chan_nr	= 7,
 		.led_current	= 50,
+		.max_current	= 100,
 	}, {
 		.name		= "lp5523:kb6",
 		.chan_nr	= 8,
 		.led_current	= 50,
+		.max_current	= 100,
 	}
 };
 
-- 
1.7.10.4

-- 
Pali Rohár
pali.rohar@...il.com

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