From: André Apitzsch <g...@apitzsch.eu>
The imx214 camera is capable of either two-lane or four-lane operation.
Currently only the four-lane mode is supported, as proper pixel rates
and link frequences for the two-lane mode are unknown.
Acked-by: Ricardo Ribalda <riba...@chromium.org>
Signed-off-by: André Apitzsch <g...@apitzsch.eu>
---
drivers/media/i2c/imx214.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c
index
4e9a8e0e2c5f2ac3fd72be06906979dcd3aaa2a4..4f6c4f845a7ab36c7674a4ce8c1664d48e46c4d0
100644
--- a/drivers/media/i2c/imx214.c
+++ b/drivers/media/i2c/imx214.c
@@ -197,7 +197,6 @@ struct imx214 {
/*From imx214_mode_tbls.h*/
static const struct cci_reg_sequence mode_4096x2304[] = {
- { IMX214_REG_CSI_LANE_MODE, IMX214_CSI_4_LANE_MODE },
{ IMX214_REG_HDR_MODE, IMX214_HDR_MODE_OFF },
{ IMX214_REG_HDR_RES_REDUCTION, IMX214_HDR_RES_REDU_THROUGH },
{ IMX214_REG_EXPOSURE_RATIO, 1 },
@@ -270,7 +269,6 @@ static const struct cci_reg_sequence mode_4096x2304[] = {
};
static const struct cci_reg_sequence mode_1920x1080[] = {
- { IMX214_REG_CSI_LANE_MODE, IMX214_CSI_4_LANE_MODE },
{ IMX214_REG_HDR_MODE, IMX214_HDR_MODE_OFF },
{ IMX214_REG_HDR_RES_REDUCTION, IMX214_HDR_RES_REDU_THROUGH },
{ IMX214_REG_EXPOSURE_RATIO, 1 },
@@ -787,6 +785,13 @@ static int imx214_start_streaming(struct imx214 *imx214)
return ret;
}
+ ret = cci_write(imx214->regmap, IMX214_REG_CSI_LANE_MODE,
+ IMX214_CSI_4_LANE_MODE, NULL);
+ if (ret) {
+ dev_err(imx214->dev, "failed to configure lanes\n");
+ return ret;
+ }
+
state = v4l2_subdev_get_locked_active_state(&imx214->sd);
fmt = v4l2_subdev_state_get_format(state, 0);
mode = v4l2_find_nearest_size(imx214_modes, ARRAY_SIZE(imx214_modes),
@@ -951,6 +956,13 @@ static int imx214_parse_fwnode(struct device *dev)
goto done;
}
+ /* Check the number of MIPI CSI2 data lanes */
+ if (bus_cfg.bus.mipi_csi2.num_data_lanes != 4) {
+ ret = dev_err_probe(dev, -EINVAL,
+ "only 4 data lanes are currently
supported\n");
+ goto done;
+ }
+
for (i = 0; i < bus_cfg.nr_of_link_frequencies; i++)
if (bus_cfg.link_frequencies[i] == IMX214_DEFAULT_LINK_FREQ)
break;
--
2.47.1
