From mboxrd@z Thu Jan 1 00:00:00 1970 From: Len Brown Subject: [PATCH 09/10] sony-laptop: fingers off backlight if video.ko is serving this functionality Date: Sat, 08 Nov 2008 01:14:28 -0500 Message-ID: <1226124869-1878-10-git-send-email-lenb@kernel.org> References: <1226124869-1878-1-git-send-email-lenb@kernel.org> Return-path: Received: from vms173001pub.verizon.net ([206.46.173.1]:36972 "EHLO vms173001pub.verizon.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751438AbYKHGOn (ORCPT ); Sat, 8 Nov 2008 01:14:43 -0500 Received: from localhost.localdomain ([96.237.168.40]) by vms173001.mailsrvcs.net (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) with ESMTPA id <0KA0009RO40INWF2@vms173001.mailsrvcs.net> for linux-acpi@vger.kernel.org; Sat, 08 Nov 2008 00:14:43 -0600 (CST) In-reply-to: <1226124869-1878-1-git-send-email-lenb@kernel.org> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: linux-acpi@vger.kernel.org Cc: Thomas Renninger , Andi Kleen , Len Brown From: Thomas Renninger Signed-off-by: Thomas Renninger Acked-by: Zhang Rui Signed-off-by: Andi Kleen Signed-off-by: Len Brown --- drivers/misc/sony-laptop.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/drivers/misc/sony-laptop.c b/drivers/misc/sony-laptop.c index 06f07e1..7bcb810 100644 --- a/drivers/misc/sony-laptop.c +++ b/drivers/misc/sony-laptop.c @@ -1038,7 +1038,11 @@ static int sony_nc_add(struct acpi_device *device) goto outinput; } - if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) { + if (!acpi_video_backlight_support()) { + printk(KERN_INFO DRV_PFX "Sony: Brightness ignored, must be " + "controlled by ACPI video driver\n"); + } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", + &handle))) { sony_backlight_device = backlight_device_register("sony", NULL, NULL, &sony_backlight_ops); -- 1.6.0.3.640.g6331a