Signed-off-by: Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx>
---
v1 -> v2: added initial value -1 for lastpage
drivers/media/video/mt9m111.c | 9 ++++++---
1 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c
index a357aa8..07af26e 100644
--- a/drivers/media/video/mt9m111.c
+++ b/drivers/media/video/mt9m111.c
@@ -184,6 +184,7 @@ struct mt9m111 {
struct mutex power_lock; /* lock to protect power_count */
int power_count;
const struct mt9m111_datafmt *fmt;
+ int lastpage; /* PageMap cache value */
unsigned int gain;
unsigned char autoexposure;
unsigned char datawidth;
@@ -202,17 +203,17 @@ static int reg_page_map_set(struct i2c_client *client, const u16 reg)
{
int ret;
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;
}
@@ -932,6 +933,8 @@ static int mt9m111_video_probe(struct soc_camera_device *icd,
BUG_ON(!icd->parent ||
to_soc_camera_host(icd->parent)->nr != icd->iface);
+ mt9m111->lastpage = -1;
+
mt9m111->autoexposure = 1;
mt9m111->autowhitebalance = 1;
--
1.7.5.4
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