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From: Michael Grzeschik <m.grzeschik@pengutronix.de>
To: linux-media@vger.kernel.org
Cc: g.liakhovetski@gmx.de, Michael Grzeschik <m.grzeschik@pengutronix.de>
Subject: [PATCH 3/5] mt9m111: move lastpage to struct mt9m111 for multi instances
Date: Tue, 12 Jul 2011 17:39:04 +0200	[thread overview]
Message-ID: <1310485146-27759-3-git-send-email-m.grzeschik@pengutronix.de> (raw)
In-Reply-To: <1310485146-27759-1-git-send-email-m.grzeschik@pengutronix.de>

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
---
 drivers/media/video/mt9m111.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c
index e08b46c..8ad99a9 100644
--- a/drivers/media/video/mt9m111.c
+++ b/drivers/media/video/mt9m111.c
@@ -170,6 +170,7 @@ struct mt9m111 {
 	enum mt9m111_context context;
 	struct v4l2_rect rect;
 	const struct mt9m111_datafmt *fmt;
+	int lastpage;
 	unsigned int gain;
 	unsigned char autoexposure;
 	unsigned char datawidth;
@@ -192,17 +193,17 @@ static int reg_page_map_set(struct i2c_client *client, const u16 reg)
 {
 	int ret = 0;
 	u16 page;
-	static int lastpage = -1;	/* PageMap cache value */
+	struct mt9m111 *mt9m111 = to_mt9m111(client);
 
 	page = (reg >> 8);
-	if (page == lastpage)
+	if (page == mt9m111->lastpage)
 		return 0;
 	if (page > 2)
 		return -EINVAL;
 
 	ret = i2c_smbus_write_word_data(client, MT9M111_PAGE_MAP, swab16(page));
 	if (!ret)
-		lastpage = page;
+		mt9m111->lastpage = page;
 	return ret;
 }
 
-- 
1.7.5.4


  parent reply	other threads:[~2011-07-12 15:39 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-12 15:39 [PATCH 1/5] mt9m111: set inital return values to zero Michael Grzeschik
2011-07-12 15:39 ` [PATCH 2/5] mt9m111: fix missing return value check mt9m111_reg_clear Michael Grzeschik
2011-07-17 16:54   ` Guennadi Liakhovetski
2011-07-12 15:39 ` Michael Grzeschik [this message]
2011-07-14 15:27   ` [PATCH 3/5] mt9m111: move lastpage to struct mt9m111 for multi instances Laurent Pinchart
2011-07-17 16:53     ` Guennadi Liakhovetski
2011-07-19 13:26   ` [PATCH v2] " Michael Grzeschik
2011-07-19 14:10     ` Guennadi Liakhovetski
2011-07-12 15:39 ` [PATCH v4 4/5] mt9m111: rewrite set_pixfmt Michael Grzeschik
2011-07-17 17:09   ` Guennadi Liakhovetski
2011-07-22 11:57     ` Michael Grzeschik
2011-07-12 15:39 ` [PATCH 5/5] mt9m111: make use of testpattern Michael Grzeschik
2011-07-17 16:55   ` Guennadi Liakhovetski
2011-07-14 15:25 ` [PATCH 1/5] mt9m111: set inital return values to zero Laurent Pinchart
2011-07-17 16:52   ` Guennadi Liakhovetski

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