linux-kernel - [ 30/86] drivers/video/backlight/adp88?0

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Message-Id: <20130226235916.004529230@linuxfoundation.org>
Date:	Tue, 26 Feb 2013 16:07:38 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Lars-Peter Clausen <lars@...afoo.de>,
	Michael Hennerich <michael.hennerich@...log.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [ 30/86] drivers/video/backlight/adp88?0_bl.c: fix resume

3.4-stable review patch.  If anyone has any objections, please let me know.

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

From: Lars-Peter Clausen <lars@...afoo.de>

commit 5eb02c01bd1f3ef195989ab05e835e2b0711b5a9 upstream.

Clearing the NSTBY bit in the control register also automatically clears
the BLEN bit.  So we need to make sure to set it again during resume,
otherwise the backlight will stay off.

Signed-off-by: Lars-Peter Clausen <lars@...afoo.de>
Acked-by: Michael Hennerich <michael.hennerich@...log.com>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/video/backlight/adp8860_bl.c |    2 +-
 drivers/video/backlight/adp8870_bl.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/video/backlight/adp8860_bl.c
+++ b/drivers/video/backlight/adp8860_bl.c
@@ -791,7 +791,7 @@ static int adp8860_i2c_suspend(struct i2
 
 static int adp8860_i2c_resume(struct i2c_client *client)
 {
-	adp8860_set_bits(client, ADP8860_MDCR, NSTBY);
+	adp8860_set_bits(client, ADP8860_MDCR, NSTBY | BLEN);
 
 	return 0;
 }
--- a/drivers/video/backlight/adp8870_bl.c
+++ b/drivers/video/backlight/adp8870_bl.c
@@ -965,7 +965,7 @@ static int adp8870_i2c_suspend(struct i2
 
 static int adp8870_i2c_resume(struct i2c_client *client)
 {
-	adp8870_set_bits(client, ADP8870_MDCR, NSTBY);
+	adp8870_set_bits(client, ADP8870_MDCR, NSTBY | BLEN);
 
 	return 0;
 }


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