[PATCH v8 04/13] media: imx219: The horizontal blanking step is 8

[Sakari Ailus <sakari.ailus@linux.intel.com>]

The step for the LINE_LENGTH_A register on imx219 is 8. Take this into
account in creating and modifying the horizontal blanking control. The
minimum line length in pixels as well as the horizontal blanking values
are already divisible by 8.

Fixes: cd5e2fd89923 ("media: i2c: imx219: make HBLANK r/w to allow longer exposures")
Cc: stable@vger.kernel.org
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 drivers/media/i2c/imx219.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
index b1f29037af74..05717b1e3224 100644
--- a/drivers/media/i2c/imx219.c
+++ b/drivers/media/i2c/imx219.c
@@ -78,6 +78,7 @@
 #define IMX219_LLP_MIN			0x0d78
 #define IMX219_BINNED_LLP_MIN		0x0de8
 #define IMX219_LLP_MAX			0x7ff0
+#define IMX219_LLP_STEP			8
 
 #define IMX219_REG_X_ADD_STA_A		CCI_REG16(0x0164)
 #define IMX219_REG_X_ADD_END_A		CCI_REG16(0x0166)
@@ -593,7 +594,8 @@ static int imx219_init_controls(struct imx219 *imx219)
 	imx219->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops,
 					   V4L2_CID_HBLANK,
 					   IMX219_LLP_MIN - mode->width,
-					   IMX219_LLP_MAX - mode->width, 1,
+					   IMX219_LLP_MAX - mode->width,
+					   IMX219_LLP_STEP,
 					   IMX219_LLP_MIN - mode->width);
 	exposure_max = mode->fll_def - IMX219_EXPOSURE_OFFSET;
 	exposure_def = (exposure_max < IMX219_EXPOSURE_DEFAULT) ?
@@ -935,7 +937,8 @@ static int imx219_set_pad_format(struct v4l2_subdev *sd,
 				  IMX219_BINNED_LLP_MIN : IMX219_LLP_MIN;
 		ret = __v4l2_ctrl_modify_range(imx219->hblank,
 					       llp_min - mode->width,
-					       IMX219_LLP_MAX - mode->width, 1,
+					       IMX219_LLP_MAX - mode->width,
+					       IMX219_LLP_STEP,
 					       llp_min - mode->width);
 		if (ret)
 			return ret;
-- 
2.47.3