[PATCH 2/4] soc-camera: tw9910: add hsync control support for platform

[Kuninori Morimoto <morimoto.kuninori@xxxxxxxxxxx>]

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@xxxxxxxxxxx>
---
 drivers/media/video/tw9910.c |   30 +++++++++++++-----------------
 include/media/tw9910.h       |    2 ++
 2 files changed, 15 insertions(+), 17 deletions(-)

diff --git a/drivers/media/video/tw9910.c b/drivers/media/video/tw9910.c
index 4652483..8e3d9e0 100644
--- a/drivers/media/video/tw9910.c
+++ b/drivers/media/video/tw9910.c
@@ -193,6 +193,10 @@
 #define RTSEL_FIELD 0x06 /* 0110 = FIELD */
 #define RTSEL_RTCO  0x07 /* 0111 = RTCO ( Real Time Control ) */
 
+/* HSYNC default */
+#define HSTART 0x0160
+#define HEND   0x0300
+
 /*
  * structure
  */
@@ -217,11 +221,6 @@ struct tw9910_cropping_ctrl {
 	u16 hactive;
 };
 
-struct tw9910_hsync_ctrl {
-	u16 start;
-	u16 end;
-};
-
 struct tw9910_priv {
 	struct v4l2_subdev                subdev;
 	struct tw9910_video_info       *info;
@@ -347,11 +346,6 @@ static const struct tw9910_cropping_ctrl tw9910_cropping_ctrl = {
 	.hactive = 0x02D0,
 };
 
-static const struct tw9910_hsync_ctrl tw9910_hsync_ctrl = {
-	.start = 0x0260,
-	.end   = 0x0300,
-};
-
 /*
  * general function
  */
@@ -418,19 +412,19 @@ static int tw9910_set_cropping(struct i2c_client *client,
 }
 
 static int tw9910_set_hsync(struct i2c_client *client,
-			    const struct tw9910_hsync_ctrl *hsync)
+			    const u16 start, const u16 end)
 {
 	int ret;
 
 	/* bit 10 - 3 */
 	ret = i2c_smbus_write_byte_data(client, HSGEGIN,
-					(hsync->start & 0x07F8) >> 3);
+					(start & 0x07F8) >> 3);
 	if (ret < 0)
 		return ret;
 
 	/* bit 10 - 3 */
 	ret = i2c_smbus_write_byte_data(client, HSEND,
-					(hsync->end & 0x07F8) >> 3);
+					(end & 0x07F8) >> 3);
 	if (ret < 0)
 		return ret;
 
@@ -440,9 +434,9 @@ static int tw9910_set_hsync(struct i2c_client *client,
 		return ret;
 
 	ret = i2c_smbus_write_byte_data(client, HSLOWCTL,
-					(ret & 0x88)                 |
-					(hsync->start & 0x0007) << 4 |
-					(hsync->end   & 0x0007));
+					(ret   & 0x88)        |
+					(start & 0x0007) << 4 |
+					(end   & 0x0007));
 
 	return ret;
 }
@@ -697,7 +691,9 @@ static int tw9910_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
 	/*
 	 * set hsync
 	 */
-	ret = tw9910_set_hsync(client, &tw9910_hsync_ctrl);
+	ret = tw9910_set_hsync(client,
+			       HSTART + priv->info->start_offset,
+			       HEND   + priv->info->end_offset);
 	if (ret < 0)
 		goto tw9910_set_fmt_error;
 
diff --git a/include/media/tw9910.h b/include/media/tw9910.h
index 73231e7..6ddb654 100644
--- a/include/media/tw9910.h
+++ b/include/media/tw9910.h
@@ -33,6 +33,8 @@ struct tw9910_video_info {
 	unsigned long          buswidth;
 	enum tw9910_mpout_pin  mpout;
 	struct soc_camera_link link;
+	u16 start_offset;
+	u16 end_offset;
 };
 
 
-- 
1.6.0.4

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