3  * V4L2 Capture ISI subdev driver for i.MX8QXP/QM platform
5  * ISI is a Image Sensor Interface of i.MX8QXP/QM platform, which
33 #include "imx8-isi-core.h"
34 #include "imx8-isi-regs.h"
173 	 * The ISI shifts the 10-bit and 12-bit formats left by 6 and 4 bits
416 	max_width = pipe->id == pipe->isi->pdata->num_channels - 1  in mxc_isi_format_try()
495 	struct device *dev = pipe->isi->dev;  in mxc_isi_video_frame_write_done()
503 	 * The ISI hardware handles buffers using a ping-pong mechanism with  in mxc_isi_video_frame_write_done()
519 	 *                    | Start ISI |  in mxc_isi_video_frame_write_done()
556 	buf_id = pipe->isi->pdata->buf_active_reverse  in mxc_isi_video_frame_write_done()
577 	 * addresses B1 and the ISI is now writing in B1 instead of B3. We  in mxc_isi_video_frame_write_done()
614 	 * can't tell if the ISI has recorded the new address, or is still  in mxc_isi_video_frame_write_done()
619 	 * interrupt, assume B2 has completed and the ISI has switched to BUF2  in mxc_isi_video_frame_write_done()
622 	 * time the ISI switches to BUF2. We can however handle this exactly as  in mxc_isi_video_frame_write_done()
664 		dma_free_coherent(video->pipe->isi->dev, buf->size, buf->addr,  in mxc_isi_video_free_discard_buffers()
679 		buf->addr = dma_alloc_coherent(video->pipe->isi->dev, buf->size,  in mxc_isi_video_alloc_discard_buffers()
686 		dev_dbg(video->pipe->isi->dev,  in mxc_isi_video_alloc_discard_buffers()
721 		dev_dbg(video->pipe->isi->dev,  in mxc_isi_video_validate_format()
778 	 * Queue two ISI channel output buffers. We are not guaranteed to have  in mxc_isi_video_queue_first_buffers()
860 int mxc_isi_video_buffer_prepare(struct mxc_isi_dev *isi, struct vb2_buffer *vb2,  in mxc_isi_video_buffer_prepare()  argument
870 			dev_err(isi->dev, "User buffer too small (%ld < %ld)\n",  in mxc_isi_video_buffer_prepare()
908 	return mxc_isi_video_buffer_prepare(video->pipe->isi, vb2,  in mxc_isi_vb2_buffer_prepare()
943 	/* Initialize the ISI channel. */  in mxc_isi_vb2_start_streaming()
1151 	struct media_device *mdev = &video->pipe->isi->media_dev;  in mxc_isi_video_streamon()
1257 	max_width = video->pipe->id == video->pipe->isi->pdata->num_channels - 1  in mxc_isi_video_enum_framesizes()
1316 	ret = pm_runtime_resume_and_get(video->pipe->isi->dev);  in mxc_isi_video_open()
1332 		dev_err(video->pipe->isi->dev, "%s fail\n", __func__);  in mxc_isi_video_release()
1338 	pm_runtime_put(video->pipe->isi->dev);  in mxc_isi_video_release()
1458 	q->dev = pipe->isi->dev;  in mxc_isi_video_register()