linux-kernel - [LED bug fix] leds-da903x (da9030 only) led brightness reversed.

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Message-ID: <490994DC.7040409@gmail.com>
Date:	Thu, 30 Oct 2008 11:05:00 +0000
From:	Jonathan Cameron <Jonathan.Cameron@...il.com>
To:	Mike Rapoport <mike@...pulab.co.il>,
	eric miao <eric.y.miao@...il.com>, rpurdie@...ys.net,
	LKML <linux-kernel@...r.kernel.org>
Subject: [LED bug fix] leds-da903x (da9030 only) led brightness reversed.

The brightness control register calculation (for the pwm) is
effectively the reverse of what would be expected.
1 is maximum brightness, 255 minimum.

This patch inverts this.

Signed-off-by: Jonathan Cameron <jic23@....ac.uk>

---
diff --git a/drivers/leds/leds-da903x.c b/drivers/leds/leds-da903x.c
index f1fddb1..ab632e9 100644
--- a/drivers/leds/leds-da903x.c
+++ b/drivers/leds/leds-da903x.c
@@ -57,7 +57,7 @@ static void da903x_led_work(struct work_struct *work)
 		offset = DA9030_LED_OFFSET(led->id);
 		val = led->flags & ~0x87;
 		val |= (led->new_brightness) ? 0x80 : 0; /* EN bit */
-		val |= (led->new_brightness >> 5) & 0x7; /* PWM<2:0> */
+		val |= (0x7 - (led->new_brightness >> 5)) & 0x7; /* PWM<2:0> */
 		da903x_write(led->master, DA9030_LED1_CONTROL + offset, val);
 		break;
 	case DA9030_ID_VIBRA:
--
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