linux-kernel - [ 10/13] atmel_lcdfb: fix usage of CONTRAST

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Message-Id: <20120312004411.724609398@1wt.eu>
Date:	Mon, 12 Mar 2012 01:44:21 +0100
From:	Willy Tarreau <w@....eu>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	Hubert Feurstein <h.feurstein@...il.com>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>,
	Florian Tobias Schandinat <FlorianSchandinat@....de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [ 10/13] atmel_lcdfb: fix usage of CONTRAST_CTR in suspend/resume

2.6.27-longterm review patch.  If anyone has any objections, please let me know.

------------------

From: Hubert Feurstein <h.feurstein@...il.com>

commit 9f1065032ceb7e86c7c9f16bb86518857e88a172 upstream.

An error was existing in the saving of CONTRAST_CTR register
across suspend/resume.

Signed-off-by: Hubert Feurstein <h.feurstein@...il.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@...el.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@....de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/video/atmel_lcdfb.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index d5e8010..8c5e432 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -1052,7 +1052,7 @@ static int atmel_lcdfb_suspend(struct platform_device *pdev, pm_message_t mesg)
 	 */
 	lcdc_writel(sinfo, ATMEL_LCDC_IDR, ~0UL);
 
-	sinfo->saved_lcdcon = lcdc_readl(sinfo, ATMEL_LCDC_CONTRAST_VAL);
+	sinfo->saved_lcdcon = lcdc_readl(sinfo, ATMEL_LCDC_CONTRAST_CTR);
 	lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR, 0);
 	if (sinfo->atmel_lcdfb_power_control)
 		sinfo->atmel_lcdfb_power_control(0);
-- 
1.7.2.1.45.g54fbc



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