[PATCH v9 8/8] media: imx214: Add new control with V4L2_CID_UNIT_CELL_SIZE

[Ricardo Ribalda Delgado]

According to the product brief, the unit cell size is 1120 nanometers^2.

https://www.sony-semicon.co.jp/products_en/IS/sensor1/img/products/ProductBrief_IMX214_20150428.pdf

Signed-off-by: Ricardo Ribalda Delgado <riba...@kernel.org>
---
 drivers/media/i2c/imx214.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c
index 159a3a604f0e..adcaaa8c86d1 100644
--- a/drivers/media/i2c/imx214.c
+++ b/drivers/media/i2c/imx214.c
@@ -47,6 +47,7 @@ struct imx214 {
        struct v4l2_ctrl *pixel_rate;
        struct v4l2_ctrl *link_freq;
        struct v4l2_ctrl *exposure;
+       struct v4l2_ctrl *unit_size;
 
        struct regulator_bulk_data      supplies[IMX214_NUM_SUPPLIES];
 
@@ -948,6 +949,10 @@ static int imx214_probe(struct i2c_client *client)
        static const s64 link_freq[] = {
                IMX214_DEFAULT_LINK_FREQ,
        };
+       static const struct v4l2_area unit_size = {
+               .width = 1120,
+               .height = 1120,
+       };
        int ret;
 
        ret = imx214_parse_fwnode(dev);
@@ -1029,6 +1034,10 @@ static int imx214_probe(struct i2c_client *client)
                                             V4L2_CID_EXPOSURE,
                                             0, 3184, 1, 0x0c70);
 
+       imx214->unit_size = v4l2_ctrl_new_std_compound(&imx214->ctrls,
+                               NULL,
+                               V4L2_CID_UNIT_CELL_SIZE,
+                               v4l2_ctrl_ptr_create((void *)&unit_size));
        ret = imx214->ctrls.error;
        if (ret) {
                dev_err(&client->dev, "%s control init failed (%d)\n",
-- 
2.23.0