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Commit 63f0edfc authored by Alexey Starikovskiy's avatar Alexey Starikovskiy Committed by Len Brown
Browse files

ACPI: VIDEO: Adjust current level to closest available one. 



Signed-off-by: default avatarAlexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 4500ca8e

drivers/acpi/video.c

+12 −1
Original line number Diff line number Diff line
@@ -1636,9 +1636,20 @@ static int 
acpi_video_get_next_level(struct acpi_video_device *device,

			  u32 level_current, u32 event)

{

	int min, max, min_above, max_below, i, l;

	int min, max, min_above, max_below, i, l, delta = 255;

	max = max_below = 0;

	min = min_above = 255;

	/* Find closest level to level_current */

	for (i = 0; i < device->brightness->count; i++) {

		l = device->brightness->levels[i];

		if (abs(l - level_current) < abs(delta)) {

			delta = l - level_current;

			if (!delta)

				break;

		}

	}

	/* Ajust level_current to closest available level */

	level_current += delta;

	for (i = 0; i < device->brightness->count; i++) {

		l = device->brightness->levels[i];

		if (l < min)