Move xen patchset to new version's subdir.

[people/pmueller/ipfire-2.x.git] / src / patches / suse-2.6.27.31 / patches.arch / 0009-thinkpad_acpi-fingers-off-backlight.patch

From: Thomas Renninger <trenn@suse.de>
Subject: [PATCH] thinkpad_acpi: fingers off backlight if video.ko is serving this functionality
Patch-Mainline: queued for .28 in Len's/ak's ACPI tree

commit bcca9a4a97b6e270793003d745d6f9439e1357a8

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
 drivers/misc/thinkpad_acpi.c |   29 +++++++++++++++++++----------
 1 file changed, 19 insertions(+), 10 deletions(-)

--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -4918,16 +4918,25 @@ static int __init brightness_init(struct
 	 */
 	b = tpacpi_check_std_acpi_brightness_support();
 	if (b > 0) {
-		if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) {
-			printk(TPACPI_NOTICE
-			       "Lenovo BIOS switched to ACPI backlight "
-			       "control mode\n");
-		}
-		if (brightness_enable > 1) {
-			printk(TPACPI_NOTICE
-			       "standard ACPI backlight interface "
-			       "available, not loading native one...\n");
-			return 1;
+
+		if (acpi_video_backlight_support()) {
+			if (brightness_enable > 1) {
+				printk(TPACPI_NOTICE
+				       "Standard ACPI backlight interface "
+				       "available, not loading native one.\n");
+				return 1;
+			} else if (brightness_enable == 1) {
+				printk(TPACPI_NOTICE
+				       "Backlight control force, even standard "
+				       "ACPI backlight interface available\n");
+			}
+		} else {
+			if (brightness_enable > 1) {
+				printk(TPACPI_NOTICE
+				       "Standard ACPI backlight interface not "
+				       "available, thinkpad_acpi driver "
+				       "will take over control\n");
+			}
 		}
 	}