leds: da903x: (da9030 only) led brightness reversed.
authorJonathan Cameron <Jonathan.Cameron@gmail.com>
Thu, 30 Oct 2008 11:05:00 +0000 (11:05 +0000)
committerEric Miao <eric.miao@marvell.com>
Thu, 30 Oct 2008 14:14:10 +0000 (22:14 +0800)
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@cam.ac.uk>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
drivers/leds/leds-da903x.c

index 2768c69257f645750adc49af10ac8f4f5c4f2b66..1f3cc512eff898af0bc3b74c878d8b862c3cbad0 100644 (file)
@@ -58,7 +58,7 @@ 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: