From d200de90de2a00169254a874569e9ab225141e2e Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Tue, 22 Feb 2022 09:50:25 +0000 Subject: [PATCH] media: imx: imx-mipi-csis: Implement the .get_frame_desc() operation The CSIS is connected to its sink through an SoC-specific gasket that needs to be configured. Depending on the platform, the gasket configuration requires knowing the CSI-2 DT. To provide the needed information, implement the .get_frame_desc() operation. Signed-off-by: Laurent Pinchart Reviewed-by: Rui Miguel Silva Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/nxp/imx-mipi-csis.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/media/platform/nxp/imx-mipi-csis.c b/drivers/media/platform/nxp/imx-mipi-csis.c index 8674aaa..9050728 100644 --- a/drivers/media/platform/nxp/imx-mipi-csis.c +++ b/drivers/media/platform/nxp/imx-mipi-csis.c @@ -1160,6 +1160,32 @@ static int mipi_csis_set_fmt(struct v4l2_subdev *sd, return 0; } +static int mipi_csis_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad, + struct v4l2_mbus_frame_desc *fd) +{ + struct mipi_csis_device *csis = sd_to_mipi_csis_device(sd); + struct v4l2_mbus_frame_desc_entry *entry = &fd->entry[0]; + + if (pad != CSIS_PAD_SOURCE) + return -EINVAL; + + fd->type = V4L2_MBUS_FRAME_DESC_TYPE_PARALLEL; + fd->num_entries = 1; + + memset(entry, 0, sizeof(*entry)); + + mutex_lock(&csis->lock); + + entry->flags = 0; + entry->pixelcode = csis->csis_fmt->code; + entry->bus.csi2.vc = 0; + entry->bus.csi2.dt = csis->csis_fmt->data_type; + + mutex_unlock(&csis->lock); + + return 0; +} + static int mipi_csis_log_status(struct v4l2_subdev *sd) { struct mipi_csis_device *csis = sd_to_mipi_csis_device(sd); @@ -1184,6 +1210,7 @@ static const struct v4l2_subdev_pad_ops mipi_csis_pad_ops = { .enum_mbus_code = mipi_csis_enum_mbus_code, .get_fmt = mipi_csis_get_fmt, .set_fmt = mipi_csis_set_fmt, + .get_frame_desc = mipi_csis_get_frame_desc, }; static const struct v4l2_subdev_ops mipi_csis_subdev_ops = { -- 2.7.4