media: ov08x40: Fix hblank out of range issue

The HTS value cannot be directly compared to the sensor's output
size. It needs to be converted to an absolute time unit.
Additionally, the hblank value need to be modified as it was
previous invalid.
Signed-off-by: Jason Chen <jason.z.chen@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/i2c/ov08x40.c

@@ -110,8 +110,6 @@ struct ov08x40_reg_list {
 
 /* Link frequency config */
 struct ov08x40_link_freq_config {
-	u32 pixels_per_line;
-
 	/* registers for this link frequency */
 	struct ov08x40_reg_list reg_list;
 };
@@ -128,6 +126,9 @@ struct ov08x40_mode {
 	u32 vts_def;
 	u32 vts_min;
 
+	/* HTS */
+	u32 hts;
+
 	/* Index of Link frequency config to be used */
 	u32 link_freq_index;
 	/* Default register values */
@@ -2391,6 +2392,7 @@ static const struct ov08x40_mode supported_modes[] = {
 		.height = 2416,
 		.vts_def = OV08X40_VTS_30FPS,
 		.vts_min = OV08X40_VTS_30FPS,
+		.hts = 640,
 		.lanes = 4,
 		.reg_list = {
 			.num_of_regs = ARRAY_SIZE(mode_3856x2416_regs),
@@ -2403,6 +2405,7 @@ static const struct ov08x40_mode supported_modes[] = {
 		.height = 1208,
 		.vts_def = OV08X40_VTS_BIN_30FPS,
 		.vts_min = OV08X40_VTS_BIN_30FPS,
+		.hts = 720,
 		.lanes = 4,
 		.reg_list = {
 			.num_of_regs = ARRAY_SIZE(mode_1928x1208_regs),
@@ -2846,9 +2849,7 @@ ov08x40_set_pad_format(struct v4l2_subdev *sd,
 					 1,
 					 vblank_def);
 		__v4l2_ctrl_s_ctrl(ov08x->vblank, vblank_def);
-		h_blank =
-			link_freq_configs[mode->link_freq_index].pixels_per_line
-			 - ov08x->cur_mode->width;
+		h_blank = ov08x->cur_mode->hts;
 		__v4l2_ctrl_modify_range(ov08x->hblank, h_blank,
 					 h_blank, 1, h_blank);
 	}
@@ -3074,8 +3075,7 @@ static int ov08x40_init_controls(struct ov08x40 *ov08x)
 					  OV08X40_VTS_MAX - mode->height, 1,
 					  vblank_def);
 
-	hblank = link_freq_configs[mode->link_freq_index].pixels_per_line -
-		 mode->width;
+	hblank = ov08x->cur_mode->hts;
 	ov08x->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov08x40_ctrl_ops,
 					  V4L2_CID_HBLANK,
 					  hblank, hblank, 1, hblank);