1 files changed, 64 insertions, 158 deletions

diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c
index 2f1aff7e8717..79284c3b6cae 100644
--- a/drivers/staging/media/tegra-video/vi.c
+++ b/drivers/staging/media/tegra-video/vi.c
@@ -30,15 +30,19 @@
 #include "vi.h"
 #include "video.h"
 
-#define MAX_CID_CONTROLS		1
-
-static const struct tegra_video_format tegra_default_format = {
-	.img_dt = TEGRA_IMAGE_DT_RAW10,
-	.bit_width = 10,
-	.code = MEDIA_BUS_FMT_SRGGB10_1X10,
-	.bpp = 2,
-	.img_fmt = TEGRA_IMAGE_FORMAT_DEF,
-	.fourcc = V4L2_PIX_FMT_SRGGB10,
+#define MAX_CID_CONTROLS		3
+
+/**
+ * struct tegra_vi_graph_entity - Entity in the video graph
+ *
+ * @asd: subdev asynchronous registration information
+ * @entity: media entity from the corresponding V4L2 subdev
+ * @subdev: V4L2 subdev
+ */
+struct tegra_vi_graph_entity {
+	struct v4l2_async_subdev asd;
+	struct media_entity *entity;
+	struct v4l2_subdev *subdev;
 };
 
 static inline struct tegra_vi *
@@ -98,6 +102,7 @@ tegra_get_format_by_fourcc(struct tegra_vi *vi, u32 fourcc)
 /*
  * videobuf2 queue operations
  */
+
 static int tegra_channel_queue_setup(struct vb2_queue *vq,
 				     unsigned int *nbuffers,
 				     unsigned int *nplanes,
@@ -113,6 +118,9 @@ static int tegra_channel_queue_setup(struct vb2_queue *vq,
 	sizes[0] = chan->format.sizeimage;
 	alloc_devs[0] = chan->vi->dev;
 
+	if (chan->vi->ops->channel_queue_setup)
+		chan->vi->ops->channel_queue_setup(chan);
+
 	return 0;
 }
 
@@ -164,6 +172,9 @@ tegra_channel_get_remote_csi_subdev(struct tegra_vi_channel *chan)
 	return media_entity_to_v4l2_subdev(pad->entity);
 }
 
+/*
+ * Walk up the chain until the initial source (e.g. image sensor)
+ */
 struct v4l2_subdev *
 tegra_channel_get_remote_source_subdev(struct tegra_vi_channel *chan)
 {
@@ -190,49 +201,15 @@ tegra_channel_get_remote_source_subdev(struct tegra_vi_channel *chan)
 
 static int tegra_channel_enable_stream(struct tegra_vi_channel *chan)
 {
-	struct v4l2_subdev *csi_subdev, *src_subdev;
-	struct tegra_csi_channel *csi_chan;
-	int ret, err;
+	struct v4l2_subdev *subdev;
+	int ret;
 
-	/*
-	 * Tegra CSI receiver can detect the first LP to HS transition.
-	 * So, start the CSI stream-on prior to sensor stream-on and
-	 * vice-versa for stream-off.
-	 */
-	csi_subdev = tegra_channel_get_remote_csi_subdev(chan);
-	ret = v4l2_subdev_call(csi_subdev, video, s_stream, true);
+	subdev = tegra_channel_get_remote_csi_subdev(chan);
+	ret = v4l2_subdev_call(subdev, video, s_stream, true);
 	if (ret < 0 && ret != -ENOIOCTLCMD)
 		return ret;
 
-	if (IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG))
-		return 0;
-
-	csi_chan = v4l2_get_subdevdata(csi_subdev);
-	/*
-	 * TRM has incorrectly documented to wait for done status from
-	 * calibration logic after CSI interface power on.
-	 * As per the design, calibration results are latched and applied
-	 * to the pads only when the link is in LP11 state which will happen
-	 * during the sensor stream-on.
-	 * CSI subdev stream-on triggers start of MIPI pads calibration.
-	 * Wait for calibration to finish here after sensor subdev stream-on.
-	 */
-	src_subdev = tegra_channel_get_remote_source_subdev(chan);
-	ret = v4l2_subdev_call(src_subdev, video, s_stream, true);
-	err = tegra_mipi_finish_calibration(csi_chan->mipi);
-
-	if (ret < 0 && ret != -ENOIOCTLCMD)
-		goto err_disable_csi_stream;
-
-	if (err < 0)
-		dev_warn(csi_chan->csi->dev,
-			 "MIPI calibration failed: %d\n", err);
-
 	return 0;
-
-err_disable_csi_stream:
-	v4l2_subdev_call(csi_subdev, video, s_stream, false);
-	return ret;
 }
 
 static int tegra_channel_disable_stream(struct tegra_vi_channel *chan)
@@ -240,18 +217,6 @@ static int tegra_channel_disable_stream(struct tegra_vi_channel *chan)
 	struct v4l2_subdev *subdev;
 	int ret;
 
-	/*
-	 * Stream-off subdevices in reverse order to stream-on.
-	 * Remote source subdev in TPG mode is same as CSI subdev.
-	 */
-	subdev = tegra_channel_get_remote_source_subdev(chan);
-	ret = v4l2_subdev_call(subdev, video, s_stream, false);
-	if (ret < 0 && ret != -ENOIOCTLCMD)
-		return ret;
-
-	if (IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG))
-		return 0;
-
 	subdev = tegra_channel_get_remote_csi_subdev(chan);
 	ret = v4l2_subdev_call(subdev, video, s_stream, false);
 	if (ret < 0 && ret != -ENOIOCTLCMD)
@@ -457,36 +422,6 @@ static int tegra_channel_get_format(struct file *file, void *fh,
 	return 0;
 }
 
-static void tegra_channel_fmt_align(struct tegra_vi_channel *chan,
-				    struct v4l2_pix_format *pix,
-				    unsigned int bpp)
-{
-	unsigned int min_bpl;
-	unsigned int max_bpl;
-	unsigned int bpl;
-
-	/*
-	 * The transfer alignment requirements are expressed in bytes.
-	 * Clamp the requested width and height to the limits.
-	 */
-	pix->width = clamp(pix->width, TEGRA_MIN_WIDTH, TEGRA_MAX_WIDTH);
-	pix->height = clamp(pix->height, TEGRA_MIN_HEIGHT, TEGRA_MAX_HEIGHT);
-
-	/* Clamp the requested bytes per line value. If the maximum bytes per
-	 * line value is zero, the module doesn't support user configurable
-	 * line sizes. Override the requested value with the minimum in that
-	 * case.
-	 */
-	min_bpl = pix->width * bpp;
-	max_bpl = rounddown(TEGRA_MAX_WIDTH, SURFACE_ALIGN_BYTES);
-	bpl = roundup(pix->bytesperline, SURFACE_ALIGN_BYTES);
-
-	pix->bytesperline = clamp(bpl, min_bpl, max_bpl);
-	pix->sizeimage = pix->bytesperline * pix->height;
-	if (pix->pixelformat == V4L2_PIX_FMT_NV16)
-		pix->sizeimage *= 2;
-}
-
 static int __tegra_channel_try_format(struct tegra_vi_channel *chan,
 				      struct v4l2_pix_format *pix)
 {
@@ -563,7 +498,7 @@ static int __tegra_channel_try_format(struct tegra_vi_channel *chan,
 		return ret;
 
 	v4l2_fill_pix_format(pix, &fmt.format);
-	tegra_channel_fmt_align(chan, pix, fmtinfo->bpp);
+	chan->vi->ops->vi_fmt_align(pix, fmtinfo->bpp);
 
 	__v4l2_subdev_state_free(sd_state);
 
@@ -616,7 +551,7 @@ static int tegra_channel_set_format(struct file *file, void *fh,
 		return ret;
 
 	v4l2_fill_pix_format(pix, &fmt.format);
-	tegra_channel_fmt_align(chan, pix, fmtinfo->bpp);
+	chan->vi->ops->vi_fmt_align(pix, fmtinfo->bpp);
 
 	chan->format = *pix;
 	chan->fmtinfo = fmtinfo;
@@ -652,7 +587,7 @@ static int tegra_channel_set_subdev_active_fmt(struct tegra_vi_channel *chan)
 	chan->format.bytesperline = chan->format.width * chan->fmtinfo->bpp;
 	chan->format.sizeimage = chan->format.bytesperline *
 				 chan->format.height;
-	tegra_channel_fmt_align(chan, &chan->format, chan->fmtinfo->bpp);
+	chan->vi->ops->vi_fmt_align(&chan->format, chan->fmtinfo->bpp);
 	tegra_channel_update_gangports(chan);
 
 	return 0;
@@ -821,7 +756,7 @@ static int tegra_channel_s_dv_timings(struct file *file, void *fh,
 	chan->format.height = bt->height;
 	chan->format.bytesperline = bt->width * chan->fmtinfo->bpp;
 	chan->format.sizeimage = chan->format.bytesperline * bt->height;
-	tegra_channel_fmt_align(chan, &chan->format, chan->fmtinfo->bpp);
+	chan->vi->ops->vi_fmt_align(&chan->format, chan->fmtinfo->bpp);
 	tegra_channel_update_gangports(chan);
 
 	return 0;
@@ -977,6 +912,12 @@ static int vi_s_ctrl(struct v4l2_ctrl *ctrl)
 	case V4L2_CID_TEGRA_SYNCPT_TIMEOUT_RETRY:
 		chan->syncpt_timeout_retry = ctrl->val;
 		break;
+	case V4L2_CID_HFLIP:
+		chan->hflip = ctrl->val;
+		break;
+	case V4L2_CID_VFLIP:
+		chan->vflip = ctrl->val;
+		break;
 	default:
 		return -EINVAL;
 	}
@@ -1048,6 +989,12 @@ static int tegra_channel_setup_ctrl_handler(struct tegra_vi_channel *chan)
 		v4l2_ctrl_handler_free(&chan->ctrl_handler);
 		return ret;
 	}
+
+	if (chan->vi->soc->has_h_v_flip) {
+		v4l2_ctrl_new_std(&chan->ctrl_handler, &vi_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0);
+		v4l2_ctrl_new_std(&chan->ctrl_handler, &vi_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0);
+	}
+
 #endif
 
 	/* setup the controls */
@@ -1119,7 +1066,7 @@ static int vi_fmts_bitmap_init(struct tegra_vi_channel *chan)
 	 * there are no matched formats.
 	 */
 	if (!match_code) {
-		match_code = tegra_default_format.code;
+		match_code = chan->vi->soc->default_video_format->code;
 		index = tegra_get_format_idx_by_code(chan->vi, match_code, 0);
 		if (WARN_ON(index < 0))
 			return -EINVAL;
@@ -1133,21 +1080,11 @@ static int vi_fmts_bitmap_init(struct tegra_vi_channel *chan)
 	return 0;
 }
 
-static void tegra_channel_host1x_syncpts_free(struct tegra_vi_channel *chan)
-{
-	int i;
-
-	for (i = 0; i < chan->numgangports; i++) {
-		host1x_syncpt_put(chan->mw_ack_sp[i]);
-		host1x_syncpt_put(chan->frame_start_sp[i]);
-	}
-}
-
 static void tegra_channel_cleanup(struct tegra_vi_channel *chan)
 {
 	v4l2_ctrl_handler_free(&chan->ctrl_handler);
 	media_entity_cleanup(&chan->video.entity);
-	tegra_channel_host1x_syncpts_free(chan);
+	chan->vi->ops->channel_host1x_syncpt_free(chan);
 	mutex_destroy(&chan->video_lock);
 }
 
@@ -1165,42 +1102,6 @@ void tegra_channels_cleanup(struct tegra_vi *vi)
 	}
 }
 
-static int tegra_channel_host1x_syncpt_init(struct tegra_vi_channel *chan)
-{
-	struct tegra_vi *vi = chan->vi;
-	unsigned long flags = HOST1X_SYNCPT_CLIENT_MANAGED;
-	struct host1x_syncpt *fs_sp;
-	struct host1x_syncpt *mw_sp;
-	int ret, i;
-
-	for (i = 0; i < chan->numgangports; i++) {
-		fs_sp = host1x_syncpt_request(&vi->client, flags);
-		if (!fs_sp) {
-			dev_err(vi->dev, "failed to request frame start syncpoint\n");
-			ret = -ENOMEM;
-			goto free_syncpts;
-		}
-
-		mw_sp = host1x_syncpt_request(&vi->client, flags);
-		if (!mw_sp) {
-			dev_err(vi->dev, "failed to request memory ack syncpoint\n");
-			host1x_syncpt_put(fs_sp);
-			ret = -ENOMEM;
-			goto free_syncpts;
-		}
-
-		chan->frame_start_sp[i] = fs_sp;
-		chan->mw_ack_sp[i] = mw_sp;
-		spin_lock_init(&chan->sp_incr_lock[i]);
-	}
-
-	return 0;
-
-free_syncpts:
-	tegra_channel_host1x_syncpts_free(chan);
-	return ret;
-}
-
 static int tegra_channel_init(struct tegra_vi_channel *chan)
 {
 	struct tegra_vi *vi = chan->vi;
@@ -1216,7 +1117,7 @@ static int tegra_channel_init(struct tegra_vi_channel *chan)
 	init_waitqueue_head(&chan->done_wait);
 
 	/* initialize the video format */
-	chan->fmtinfo = &tegra_default_format;
+	chan->fmtinfo = chan->vi->soc->default_video_format;
 	chan->format.pixelformat = chan->fmtinfo->fourcc;
 	chan->format.colorspace = V4L2_COLORSPACE_SRGB;
 	chan->format.field = V4L2_FIELD_NONE;
@@ -1224,9 +1125,9 @@ static int tegra_channel_init(struct tegra_vi_channel *chan)
 	chan->format.height = TEGRA_DEF_HEIGHT;
 	chan->format.bytesperline = TEGRA_DEF_WIDTH * chan->fmtinfo->bpp;
 	chan->format.sizeimage = chan->format.bytesperline * TEGRA_DEF_HEIGHT;
-	tegra_channel_fmt_align(chan, &chan->format, chan->fmtinfo->bpp);
+	vi->ops->vi_fmt_align(&chan->format, chan->fmtinfo->bpp);
 
-	ret = tegra_channel_host1x_syncpt_init(chan);
+	ret = vi->ops->channel_host1x_syncpt_init(chan);
 	if (ret)
 		return ret;
 
@@ -1289,7 +1190,7 @@ free_v4l2_ctrl_hdl:
 cleanup_media:
 	media_entity_cleanup(&chan->video.entity);
 free_syncpts:
-	tegra_channel_host1x_syncpts_free(chan);
+	vi->ops->channel_host1x_syncpt_free(chan);
 	return ret;
 }
 
@@ -1351,7 +1252,7 @@ static int tegra_vi_channels_alloc(struct tegra_vi *vi)
 	struct device_node *node = vi->dev->of_node;
 	struct device_node *ep = NULL;
 	struct device_node *ports;
-	struct device_node *port;
+	struct device_node *port = NULL;
 	unsigned int port_num;
 	struct device_node *parent;
 	struct v4l2_fwnode_endpoint v4l2_ep = { .bus_type = 0 };
@@ -1360,7 +1261,7 @@ static int tegra_vi_channels_alloc(struct tegra_vi *vi)
 
 	ports = of_get_child_by_name(node, "ports");
 	if (!ports)
-		return -ENODEV;
+		return dev_err_probe(vi->dev, -ENODEV, "%pOF: missing 'ports' node\n", node);
 
 	for_each_child_of_node(ports, port) {
 		if (!of_node_name_eq(port, "port"))
@@ -1374,7 +1275,6 @@ static int tegra_vi_channels_alloc(struct tegra_vi *vi)
 			dev_err(vi->dev, "invalid port num %d for %pOF\n",
 				port_num, port);
 			ret = -EINVAL;
-			of_node_put(port);
 			goto cleanup;
 		}
 
@@ -1397,13 +1297,12 @@ static int tegra_vi_channels_alloc(struct tegra_vi *vi)
 
 		lanes = v4l2_ep.bus.mipi_csi2.num_data_lanes;
 		ret = tegra_vi_channel_alloc(vi, port_num, port, lanes);
-		if (ret < 0) {
-			of_node_put(port);
+		if (ret < 0)
 			goto cleanup;
-		}
 	}
 
 cleanup:
+	of_node_put(port);
 	of_node_put(ports);
 	return ret;
 }
@@ -1858,10 +1757,10 @@ static int tegra_vi_graph_init(struct tegra_vi *vi)
 	 * Walk the links to parse the full graph. Each channel will have
 	 * one endpoint of the composite node. Start by parsing the
 	 * composite node and parse the remote entities in turn.
-	 * Each channel will register v4l2 async notifier to make the graph
-	 * independent between the channels so we can the current channel
+	 * Each channel will register a v4l2 async notifier to make the graph
+	 * independent between the channels so we can skip the current channel
 	 * in case of something wrong during graph parsing and continue with
-	 * next channels.
+	 * the next channels.
 	 */
 	list_for_each_entry(chan, &vi->vi_chans, list) {
 		struct fwnode_handle *ep, *remote;
@@ -1920,11 +1819,8 @@ static int tegra_vi_init(struct host1x_client *client)
 		ret = tegra_vi_tpg_channels_alloc(vi);
 	else
 		ret = tegra_vi_channels_alloc(vi);
-	if (ret < 0) {
-		dev_err(vi->dev,
-			"failed to allocate vi channels: %d\n", ret);
+	if (ret < 0)
 		goto free_chans;
-	}
 
 	ret = tegra_vi_channels_init(vi);
 	if (ret < 0)
@@ -2026,6 +1922,9 @@ static int tegra_vi_probe(struct platform_device *pdev)
 	vi->client.ops = &vi_client_ops;
 	vi->client.dev = &pdev->dev;
 
+	if (vi->ops->vi_enable)
+		vi->ops->vi_enable(vi, true);
+
 	ret = host1x_client_register(&vi->client);
 	if (ret < 0) {
 		dev_err(&pdev->dev,
@@ -2036,6 +1935,8 @@ static int tegra_vi_probe(struct platform_device *pdev)
 	return 0;
 
 rpm_disable:
+	if (vi->ops->vi_enable)
+		vi->ops->vi_enable(vi, false);
 	pm_runtime_disable(&pdev->dev);
 	return ret;
 }
@@ -2046,12 +1947,17 @@ static int tegra_vi_remove(struct platform_device *pdev)
 
 	host1x_client_unregister(&vi->client);
 
+	if (vi->ops->vi_enable)
+		vi->ops->vi_enable(vi, false);
 	pm_runtime_disable(&pdev->dev);
 
 	return 0;
 }
 
 static const struct of_device_id tegra_vi_of_id_table[] = {
+#if defined(CONFIG_ARCH_TEGRA_2x_SOC)
+	{ .compatible = "nvidia,tegra20-vi",  .data = &tegra20_vi_soc },
+#endif
 #if defined(CONFIG_ARCH_TEGRA_210_SOC)
 	{ .compatible = "nvidia,tegra210-vi", .data = &tegra210_vi_soc },
 #endif