media: imx258: Register H/V flip controls

Register controls for V4L2_CID_HFLIP and V4L2_CID_VFLIP.

The controls are registered as read-only and enabled by default, as the
driver embeds a 180 degrees rotation in its programming sequences and
only supports that mode of operations.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c
index 3b56086..2e0a4ea 100644 (file)
--- a/drivers/media/i2c/imx258.c
+++ b/drivers/media/i2c/imx258.c
@@ -1151,6 +1151,7 @@ static int imx258_init_controls(struct imx258 *imx258)
        struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
        struct v4l2_fwnode_device_properties props;
        struct v4l2_ctrl_handler *ctrl_hdlr;
+       struct v4l2_ctrl *vflip, *hflip;
        s64 vblank_def;
        s64 vblank_min;
        s64 pixel_rate_min;
@@ -1158,7 +1159,7 @@ static int imx258_init_controls(struct imx258 *imx258)
        int ret;
 
        ctrl_hdlr = &imx258->ctrl_handler;
-       ret = v4l2_ctrl_handler_init(ctrl_hdlr, 11);
+       ret = v4l2_ctrl_handler_init(ctrl_hdlr, 13);
        if (ret)
                return ret;
 
@@ -1174,6 +1175,17 @@ static int imx258_init_controls(struct imx258 *imx258)
        if (imx258->link_freq)
                imx258->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
 
+       /* The driver only supports one bayer order and flips by default. */
+       hflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops,
+                                 V4L2_CID_HFLIP, 1, 1, 1, 1);
+       if (hflip)
+               hflip->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+       vflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops,
+                                 V4L2_CID_VFLIP, 1, 1, 1, 1);
+       if (vflip)
+               vflip->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
        pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]);
        pixel_rate_min = link_freq_to_pixel_rate(link_freq_menu_items[1]);
        /* By default, PIXEL_RATE is read only */