From patchwork Fri Nov 27 06:43:37 2009
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: chaithrika@ti.com
X-Patchwork-Id: 63288
Received: from devils.ext.ti.com (devils.ext.ti.com [198.47.26.153])
	by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id nAR71FOi019529
	for <patchwork-davinci@patchwork.kernel.org>;
	Fri, 27 Nov 2009 07:01:16 GMT
Received: from dlep33.itg.ti.com ([157.170.170.112])
	by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id nAR6xcaS022464
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO);
	Fri, 27 Nov 2009 00:59:38 -0600
Received: from linux.omap.com (localhost [127.0.0.1])
	by dlep33.itg.ti.com (8.13.7/8.13.7) with ESMTP id nAR6xbcl027422;
	Fri, 27 Nov 2009 00:59:37 -0600 (CST)
Received: from linux.omap.com (localhost [127.0.0.1])
	by linux.omap.com (Postfix) with ESMTP
	id 8DC8380627; Fri, 27 Nov 2009 00:59:37 -0600 (CST)
X-Original-To: davinci-linux-open-source@linux.davincidsp.com
Delivered-To: davinci-linux-open-source@linux.davincidsp.com
Received: from dflp53.itg.ti.com (dflp53.itg.ti.com [128.247.5.6])
	by linux.omap.com (Postfix) with ESMTP id D993F80626
	for <davinci-linux-open-source@linux.davincidsp.com>;
	Fri, 27 Nov 2009 00:59:34 -0600 (CST)
Received: from tidmzi-ftp.india.ext.ti.com (localhost [127.0.0.1])
	by dflp53.itg.ti.com (8.13.8/8.13.8) with SMTP id nAR6xWHf024558;
	Fri, 27 Nov 2009 00:59:32 -0600 (CST)
Received: from symphonyindia.ti.com (symphony-ftp [192.168.247.11])
	by tidmzi-ftp.india.ext.ti.com (Postfix) with SMTP
	id A7D7E3886B; Fri, 27 Nov 2009 12:26:20 +0530 (IST)
Received: from localhost.localdomain ([192.168.247.76])
	by symphonyindia.ti.com (8.13.1/8.12.10) with ESMTP id nAR6rFwj028647;
	Fri, 27 Nov 2009 12:23:15 +0530
From: Chaithrika U S <chaithrika@ti.com>
To: linux-fbdev-devel@lists.sourceforge.net
Subject: [PATCH 3/4] davinci: fb : Add suspend/resume suuport for
	DA8xx/OMAP-L1xx fb driver
Date: Fri, 27 Nov 2009 12:13:37 +0530
Message-Id: <1259304217-19388-1-git-send-email-chaithrika@ti.com>
X-Mailer: git-send-email 1.5.6
Cc: akpm@linux-foundation.org, krzysztof.h1@poczta.fm,
	davinci-linux-open-source@linux.davincidsp.com
X-BeenThere: davinci-linux-open-source@linux.davincidsp.com
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: <davinci-linux-open-source.linux.davincidsp.com>
List-Unsubscribe: 
 <http://linux.davincidsp.com/mailman/options/davinci-linux-open-source>,
	<mailto:davinci-linux-open-source-request@linux.davincidsp.com?subject=unsubscribe>
List-Archive: 
 <http://linux.davincidsp.com/pipermail/davinci-linux-open-source>
List-Post: <mailto:davinci-linux-open-source@linux.davincidsp.com>
List-Help: 
 <mailto:davinci-linux-open-source-request@linux.davincidsp.com?subject=help>
List-Subscribe: 
 <http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source>,
	<mailto:davinci-linux-open-source-request@linux.davincidsp.com?subject=subscribe>
MIME-Version: 1.0
Sender: davinci-linux-open-source-bounces@linux.davincidsp.com
Errors-To: davinci-linux-open-source-bounces@linux.davincidsp.com


diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
index b3c22e1..fcaa344 100644
--- a/drivers/video/da8xx-fb.c
+++ b/drivers/video/da8xx-fb.c
@@ -29,6 +29,7 @@
 #include <linux/interrupt.h>
 #include <linux/clk.h>
 #include <linux/cpufreq.h>
+#include <linux/console.h>
 #include <video/da8xx-fb.h>
 
 #define DRIVER_NAME "da8xx_lcdc"
@@ -930,11 +931,35 @@ err_request_mem:
 #ifdef CONFIG_PM
 static int fb_suspend(struct platform_device *dev, pm_message_t state)
 {
-	 return -EBUSY;
+	struct fb_info *info = platform_get_drvdata(dev);
+	struct da8xx_fb_par *par = info->par;
+
+	acquire_console_sem();
+	if (par->panel_power_ctrl)
+		par->panel_power_ctrl(0);
+
+	fb_set_suspend(info, 1);
+	lcd_disable_raster();
+	clk_disable(par->lcdc_clk);
+	release_console_sem();
+
+	return 0;
 }
 static int fb_resume(struct platform_device *dev)
 {
-	 return -EBUSY;
+	struct fb_info *info = platform_get_drvdata(dev);
+	struct da8xx_fb_par *par = info->par;
+
+	acquire_console_sem();
+	if (par->panel_power_ctrl)
+		par->panel_power_ctrl(1);
+
+	clk_enable(par->lcdc_clk);
+	lcd_enable_raster();
+	fb_set_suspend(info, 0);
+	release_console_sem();
+
+	return 0;
 }
 #else
 #define fb_suspend NULL