linux-kernel - [12/21] atmel_lcdfb: fix usage of CONTRAST

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Message-Id: <20120210224851.877313518@clark.kroah.org>
Date:	Fri, 10 Feb 2012 14:47:51 -0800
From:	Greg KH <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Hubert Feurstein <h.feurstein@...il.com>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>,
	Florian Tobias Schandinat <FlorianSchandinat@....de>
Subject: [12/21] atmel_lcdfb: fix usage of CONTRAST_CTR in suspend/resume

2.6.32-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 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -1052,7 +1052,7 @@ static int atmel_lcdfb_suspend(struct pl
 	 */
 	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);


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