Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030403AbXBZS07 (ORCPT ); Mon, 26 Feb 2007 13:26:59 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030407AbXBZS07 (ORCPT ); Mon, 26 Feb 2007 13:26:59 -0500 Received: from out5.smtp.messagingengine.com ([66.111.4.29]:54028 "EHLO out5.smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030400AbXBZS0q (ORCPT ); Mon, 26 Feb 2007 13:26:46 -0500 X-Sasl-enc: w+OWY547hLPHNZJGiHgKcLF1uUWN/wrrtGQVXtaRwZXO 1172514376 Date: Mon, 26 Feb 2007 15:26:04 -0300 From: Henrique de Moraes Holschuh To: Richard Purdie Cc: Jiri Kosina , linux-kernel@vger.kernel.org Subject: [PATCH] ACPI: ibm-acpi: improve backlight power handling (v2) Message-ID: <20070226182604.GJ2909@khazad-dum.debian.net> References: <1172490091.5824.30.camel@localhost.localdomain> <20070226142157.GA2909@khazad-dum.debian.net> <1172501357.5824.91.camel@localhost.localdomain> <20070226152035.GB2909@khazad-dum.debian.net> <20070226161203.GD2909@khazad-dum.debian.net> <1172507907.5824.105.camel@localhost.localdomain> <20070226181202.GH2909@khazad-dum.debian.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070226181202.GH2909@khazad-dum.debian.net> X-GPG-Fingerprint: 1024D/1CDB0FE3 5422 5C61 F6B7 06FB 7E04 3738 EE25 DE3F 1CDB 0FE3 User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1561 Lines: 50 Improve the backlight code to emulate as much as possible the power management events, as we are unable to really power on or power off the backlight. Signed-off-by: Henrique de Moraes Holschuh Cc: Richard Purdie --- Waiting ACK from Richard Purdie drivers/acpi/ibm_acpi.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c index e7309a6..3690136 100644 --- a/drivers/acpi/ibm_acpi.c +++ b/drivers/acpi/ibm_acpi.c @@ -86,6 +86,7 @@ #include #include +#include #include #include @@ -1707,7 +1708,10 @@ static int brightness_write(char *buf) static int brightness_update_status(struct backlight_device *bd) { - return brightness_set(bd->props.brightness); + return brightness_set( + (bd->props.fb_blank == FB_BLANK_UNBLANK && + bd->props.power == FB_BLANK_UNBLANK) ? + bd->props.brightness : 0); } static struct backlight_ops ibm_backlight_data = { -- 1.5.0.1 -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/