media: atomisp: Drop unused frame_status tracking

After removing the flash support frame_status now always is
ATOMISP_FRAME_STATUS_OK aka 0. Drop frame_status tracking.

This also means one less atomisp custom use for the vb2_buffer->reserved*
fields (all custom use of these fields should be removed).

While at it also remove the no longer used vf_frame pointer from
struct atomisp_sub_device.
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/staging/media/atomisp/include/linux/atomisp.h

@@ -614,21 +614,6 @@ enum atomisp_camera_port {
 	ATOMISP_CAMERA_NR_PORTS
 };
 
-/* Frame status. This is used to detect corrupted frames and flash
- * exposed frames. Usually, the first 2 frames coming out of the sensor
- * are corrupted. When using flash, the frame before and the frame after
- * the flash exposed frame may be partially exposed by flash. The ISP
- * statistics for these frames should not be used by the 3A library.
- * The frame status value can be found in the "reserved" field in the
- * v4l2_buffer struct. */
-enum atomisp_frame_status {
-	ATOMISP_FRAME_STATUS_OK,
-	ATOMISP_FRAME_STATUS_CORRUPTED,
-	ATOMISP_FRAME_STATUS_FLASH_EXPOSED,
-	ATOMISP_FRAME_STATUS_FLASH_PARTIAL,
-	ATOMISP_FRAME_STATUS_FLASH_FAILED,
-};
-
 enum atomisp_ext_isp_id {
 	EXT_ISP_CID_ISO = 0,
 	EXT_ISP_CID_CAPTURE_HDR,

drivers/staging/media/atomisp/pci/atomisp_cmd.c

@@ -813,7 +813,6 @@ void atomisp_buf_done(struct atomisp_sub_device *asd, int error,
 		}
 
 		pipe->frame_config_id[i] = frame->isp_config_id;
-		asd->frame_status[i] = ATOMISP_FRAME_STATUS_OK;
 
 		if (asd->params.css_update_params_needed) {
 			atomisp_apply_css_parameters(asd,

drivers/staging/media/atomisp/pci/atomisp_ioctl.c

@@ -826,7 +826,6 @@ static int atomisp_dqbuf_wrapper(struct file *file, void *fh, struct v4l2_buffer
 {
 	struct video_device *vdev = video_devdata(file);
 	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
-	struct atomisp_sub_device *asd = pipe->asd;
 	struct atomisp_device *isp = video_get_drvdata(vdev);
 	struct ia_css_frame *frame;
 	struct vb2_buffer *vb;
@@ -839,15 +838,8 @@ static int atomisp_dqbuf_wrapper(struct file *file, void *fh, struct v4l2_buffer
 	vb = vb2_get_buffer(&pipe->vb_queue, buf->index);
 	frame = vb_to_frame(vb);
 
-	buf->reserved = asd->frame_status[buf->index];
-
-	/*
-	 * Hack:
-	 * Currently frame_status in the enum type which takes no more lower
-	 * 8 bit.
-	 * use bit[31:16] for exp_id as it is only in the range of 1~255
-	 */
-	buf->reserved &= 0x0000ffff;
+	/* reserved bit[31:16] is used for exp_id */
+	buf->reserved = 0;
 	if (!(buf->flags & V4L2_BUF_FLAG_ERROR))
 		buf->reserved |= frame->exp_id;
 	buf->reserved2 = pipe->frame_config_id[buf->index];

drivers/staging/media/atomisp/pci/atomisp_subdev.h

@@ -274,9 +274,6 @@ struct atomisp_sub_device {
 	struct list_head dis_stats_in_css;
 	spinlock_t dis_stats_lock;
 
-	struct ia_css_frame *vf_frame; /* TODO: needed? */
-	enum atomisp_frame_status frame_status[VIDEO_MAX_FRAME];
-
 	/* This field specifies which camera (v4l2 input) is selected. */
 	int input_curr;