[PATCH v2 1/9] media: imx: Store the type of hardware implementation

Alexander Stein
2022-02-11T14:28:10Z

From: Dorota Czaplejewicz <dorota.czaplejewicz@puri.sm>

The driver covers i.MX5/6, as well as i.MX7/8 hardware.
Those implementations differ, e.g. in the sizes of buffers they accept.

Some functionality should be abstracted, and storing type achieves that.

Signed-off-by: Dorota Czaplejewicz <dorota.czaplejewicz@puri.sm>
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
---
Changes in v2:
* Switch back to using enum

drivers/staging/media/imx/imx-ic-prpencvf.c | 3 ++-
drivers/staging/media/imx/imx-media-capture.c | 5 ++++-
drivers/staging/media/imx/imx-media-csi.c | 3 ++-
drivers/staging/media/imx/imx-media.h | 8 +++++++-
drivers/staging/media/imx/imx7-media-csi.c | 3 ++-
5 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/media/imx/imx-ic-prpencvf.c b/drivers/staging/media/imx/imx-ic-prpencvf.c
index 9b81cfbcd777..671bb9a681aa 100644
--- a/drivers/staging/media/imx/imx-ic-prpencvf.c
+++ b/drivers/staging/media/imx/imx-ic-prpencvf.c
@@ -1266,7 +1266,8 @@ static int prp_registered(struct v4l2_subdev *sd)

priv->vdev = imx_media_capture_device_init(ic_priv->ipu_dev,
&ic_priv->sd,
- PRPENCVF_SRC_PAD, true);
+ PRPENCVF_SRC_PAD, true,
+ DEVICE_TYPE_IMX56);
if (IS_ERR(priv->vdev))
return PTR_ERR(priv->vdev);

diff --git a/drivers/staging/media/imx/imx-media-capture.c b/drivers/staging/media/imx/imx-media-capture.c
index 93ba09236010..65dc95a48ecc 100644
--- a/drivers/staging/media/imx/imx-media-capture.c
+++ b/drivers/staging/media/imx/imx-media-capture.c
@@ -34,6 +34,7 @@ struct capture_priv {

struct imx_media_video_dev vdev; /* Video device */
struct media_pad vdev_pad; /* Video device pad */
+ enum imx_media_device_type type; /* Type of hardware implementation */

struct v4l2_subdev *src_sd; /* Source subdev */
int src_sd_pad; /* Source subdev pad */
@@ -957,7 +958,8 @@ EXPORT_SYMBOL_GPL(imx_media_capture_device_unregister);

struct imx_media_video_dev *
imx_media_capture_device_init(struct device *dev, struct v4l2_subdev *src_sd,
- int pad, bool legacy_api)
+ int pad, bool legacy_api,
+ enum imx_media_device_type type)
{
struct capture_priv *priv;
struct video_device *vfd;
@@ -972,6 +974,7 @@ imx_media_capture_device_init(struct device *dev, struct v4l2_subdev *src_sd,
priv->src_sd_pad = pad;
priv->dev = dev;
priv->legacy_api = legacy_api;
+ priv->type = type;

mutex_init(&priv->mutex);
INIT_LIST_HEAD(&priv->ready_q);
diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c
index bd7f156f2d52..d5557bb4913d 100644
--- a/drivers/staging/media/imx/imx-media-csi.c
+++ b/drivers/staging/media/imx/imx-media-csi.c
@@ -1803,7 +1803,8 @@ static int csi_registered(struct v4l2_subdev *sd)
}

priv->vdev = imx_media_capture_device_init(priv->sd.dev, &priv->sd,
- CSI_SRC_PAD_IDMAC, true);
+ CSI_SRC_PAD_IDMAC, true,
+ DEVICE_TYPE_IMX56);
if (IS_ERR(priv->vdev)) {
ret = PTR_ERR(priv->vdev);
goto free_fim;
diff --git a/drivers/staging/media/imx/imx-media.h b/drivers/staging/media/imx/imx-media.h
index f263fc3adbb9..e4c22b3ccd57 100644
--- a/drivers/staging/media/imx/imx-media.h
+++ b/drivers/staging/media/imx/imx-media.h
@@ -96,6 +96,11 @@ enum imx_pixfmt_sel {
PIXFMT_SEL_ANY = PIXFMT_SEL_YUV | PIXFMT_SEL_RGB | PIXFMT_SEL_BAYER,
};

+enum imx_media_device_type {
+ DEVICE_TYPE_IMX56,
+ DEVICE_TYPE_IMX78,
+};
+
struct imx_media_buffer {
struct vb2_v4l2_buffer vbuf; /* v4l buffer must be first */
struct list_head list;
@@ -282,7 +287,8 @@ int imx_media_ic_unregister(struct v4l2_subdev *sd);
/* imx-media-capture.c */
struct imx_media_video_dev *
imx_media_capture_device_init(struct device *dev, struct v4l2_subdev *src_sd,
- int pad, bool legacy_api);
+ int pad, bool legacy_api,
+ enum imx_media_device_type type);
void imx_media_capture_device_remove(struct imx_media_video_dev *vdev);
int imx_media_capture_device_register(struct imx_media_video_dev *vdev,
u32 link_flags);
diff --git a/drivers/staging/media/imx/imx7-media-csi.c b/drivers/staging/media/imx/imx7-media-csi.c
index 32311fc0e2a4..173dd014c2d6 100644
--- a/drivers/staging/media/imx/imx7-media-csi.c
+++ b/drivers/staging/media/imx/imx7-media-csi.c
@@ -1039,7 +1039,8 @@ static int imx7_csi_registered(struct v4l2_subdev *sd)
}

csi->vdev = imx_media_capture_device_init(csi->sd.dev, &csi->sd,
- IMX7_CSI_PAD_SRC, false);
+ IMX7_CSI_PAD_SRC, false,
+ DEVICE_TYPE_IMX78);
if (IS_ERR(csi->vdev))
return PTR_ERR(csi->vdev);

--
2.25.1