Merge tag 'omapdss-for-3.7' of git://gitorious.org/linux-omap-dss2/linux into fbdev-next

Omapdss driver changes for the 3.7 merge window.

Notable changes:

* Basic writeback support for DISPC level. Writeback is not yet usable, though,
  as we need higher level code to actually expose the writeback feature to
  userspace.
* Rewriting the omapdss output drivers. We're trying to remove the hard links
  between the omapdss and the panels, and this rewrite work moves us closer to
  that goal.
* Cleanup and restructuring patches that have been made while working on device
  tree support for omapdss. Device tree support is still some way ahead, but
  these patches are good cleanups in themselves.
* Basic OMAP5 DSS support for DPI and DSI outputs.
* Workaround for the problem that GFX overlay's fifo is too small for high
  resolution scenarios, causing underflows.
* Cleanups that remove dependencies to omap platform code.

1 files changed, 50 insertions, 25 deletions

diff --git a/drivers/media/video/omap/omap_vout.c b/drivers/media/video/omap/omap_vout.c
index 88cf9d952631..f721fd2155f7 100644
--- a/drivers/media/video/omap/omap_vout.c
+++ b/drivers/media/video/omap/omap_vout.c
@@ -454,11 +454,15 @@ static int omapvid_init(struct omap_vout_device *vout, u32 addr)
 
 	win = &vout->win;
 	for (i = 0; i < ovid->num_overlays; i++) {
+		struct omap_dss_device *dssdev;
+
 		ovl = ovid->overlays[i];
-		if (!ovl->manager || !ovl->manager->device)
+		dssdev = ovl->get_device(ovl);
+
+		if (!dssdev)
 			return -EINVAL;
 
-		timing = &ovl->manager->device->panel.timings;
+		timing = &dssdev->panel.timings;
 
 		outw = win->w.width;
 		outh = win->w.height;
@@ -515,8 +519,11 @@ static int omapvid_apply_changes(struct omap_vout_device *vout)
 	struct omapvideo_info *ovid = &vout->vid_info;
 
 	for (i = 0; i < ovid->num_overlays; i++) {
+		struct omap_dss_device *dssdev;
+
 		ovl = ovid->overlays[i];
-		if (!ovl->manager || !ovl->manager->device)
+		dssdev = ovl->get_device(ovl);
+		if (!dssdev)
 			return -EINVAL;
 		ovl->manager->apply(ovl->manager);
 	}
@@ -579,12 +586,14 @@ static void omap_vout_isr(void *arg, unsigned int irqstatus)
 
 	ovid = &vout->vid_info;
 	ovl = ovid->overlays[0];
-	/* get the display device attached to the overlay */
-	if (!ovl->manager || !ovl->manager->device)
-		return;
 
 	mgr_id = ovl->manager->id;
-	cur_display = ovl->manager->device;
+
+	/* get the display device attached to the overlay */
+	cur_display = ovl->get_device(ovl);
+
+	if (!cur_display)
+		return;
 
 	spin_lock(&vout->vbq_lock);
 	do_gettimeofday(&timevalue);
@@ -948,7 +957,9 @@ static int omap_vout_release(struct file *file)
 	/* Disable all the overlay managers connected with this interface */
 	for (i = 0; i < ovid->num_overlays; i++) {
 		struct omap_overlay *ovl = ovid->overlays[i];
-		if (ovl->manager && ovl->manager->device)
+		struct omap_dss_device *dssdev = ovl->get_device(ovl);
+
+		if (dssdev)
 			ovl->disable(ovl);
 	}
 	/* Turn off the pipeline */
@@ -1081,14 +1092,17 @@ static int vidioc_try_fmt_vid_out(struct file *file, void *fh,
 	struct omapvideo_info *ovid;
 	struct omap_video_timings *timing;
 	struct omap_vout_device *vout = fh;
+	struct omap_dss_device *dssdev;
 
 	ovid = &vout->vid_info;
 	ovl = ovid->overlays[0];
+	/* get the display device attached to the overlay */
+	dssdev = ovl->get_device(ovl);
 
-	if (!ovl->manager || !ovl->manager->device)
+	if (!dssdev)
 		return -EINVAL;
-	/* get the display device attached to the overlay */
-	timing = &ovl->manager->device->panel.timings;
+
+	timing = &dssdev->panel.timings;
 
 	vout->fbuf.fmt.height = timing->y_res;
 	vout->fbuf.fmt.width = timing->x_res;
@@ -1105,6 +1119,7 @@ static int vidioc_s_fmt_vid_out(struct file *file, void *fh,
 	struct omapvideo_info *ovid;
 	struct omap_video_timings *timing;
 	struct omap_vout_device *vout = fh;
+	struct omap_dss_device *dssdev;
 
 	if (vout->streaming)
 		return -EBUSY;
@@ -1113,13 +1128,14 @@ static int vidioc_s_fmt_vid_out(struct file *file, void *fh,
 
 	ovid = &vout->vid_info;
 	ovl = ovid->overlays[0];
+	dssdev = ovl->get_device(ovl);
 
 	/* get the display device attached to the overlay */
-	if (!ovl->manager || !ovl->manager->device) {
+	if (!dssdev) {
 		ret = -EINVAL;
 		goto s_fmt_vid_out_exit;
 	}
-	timing = &ovl->manager->device->panel.timings;
+	timing = &dssdev->panel.timings;
 
 	/* We dont support RGB24-packed mode if vrfb rotation
 	 * is enabled*/
@@ -1298,6 +1314,7 @@ static int vidioc_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
 	struct omapvideo_info *ovid;
 	struct omap_overlay *ovl;
 	struct omap_video_timings *timing;
+	struct omap_dss_device *dssdev;
 
 	if (vout->streaming)
 		return -EBUSY;
@@ -1305,13 +1322,15 @@ static int vidioc_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
 	mutex_lock(&vout->lock);
 	ovid = &vout->vid_info;
 	ovl = ovid->overlays[0];
+	/* get the display device attached to the overlay */
+	dssdev = ovl->get_device(ovl);
 
-	if (!ovl->manager || !ovl->manager->device) {
+	if (!dssdev) {
 		ret = -EINVAL;
 		goto s_crop_err;
 	}
-	/* get the display device attached to the overlay */
-	timing = &ovl->manager->device->panel.timings;
+
+	timing = &dssdev->panel.timings;
 
 	if (is_rotation_90_or_270(vout)) {
 		vout->fbuf.fmt.height = timing->x_res;
@@ -1667,7 +1686,7 @@ static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
 	for (j = 0; j < ovid->num_overlays; j++) {
 		struct omap_overlay *ovl = ovid->overlays[j];
 
-		if (ovl->manager && ovl->manager->device) {
+		if (ovl->get_device(ovl)) {
 			struct omap_overlay_info info;
 			ovl->get_overlay_info(ovl, &info);
 			info.paddr = addr;
@@ -1690,8 +1709,9 @@ static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
 
 	for (j = 0; j < ovid->num_overlays; j++) {
 		struct omap_overlay *ovl = ovid->overlays[j];
+		struct omap_dss_device *dssdev = ovl->get_device(ovl);
 
-		if (ovl->manager && ovl->manager->device) {
+		if (dssdev) {
 			ret = ovl->enable(ovl);
 			if (ret)
 				goto streamon_err1;
@@ -1726,8 +1746,9 @@ static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
 
 	for (j = 0; j < ovid->num_overlays; j++) {
 		struct omap_overlay *ovl = ovid->overlays[j];
+		struct omap_dss_device *dssdev = ovl->get_device(ovl);
 
-		if (ovl->manager && ovl->manager->device)
+		if (dssdev)
 			ovl->disable(ovl);
 	}
 
@@ -1890,8 +1911,8 @@ static int __init omap_vout_setup_video_data(struct omap_vout_device *vout)
 	struct video_device *vfd;
 	struct v4l2_pix_format *pix;
 	struct v4l2_control *control;
-	struct omap_dss_device *display =
-		vout->vid_info.overlays[0]->manager->device;
+	struct omap_overlay *ovl = vout->vid_info.overlays[0];
+	struct omap_dss_device *display = ovl->get_device(ovl);
 
 	/* set the default pix */
 	pix = &vout->pix;
@@ -2205,8 +2226,10 @@ static int __init omap_vout_probe(struct platform_device *pdev)
 	 */
 	for (i = 1; i < vid_dev->num_overlays; i++) {
 		ovl = omap_dss_get_overlay(i);
-		if (ovl->manager && ovl->manager->device) {
-			def_display = ovl->manager->device;
+		dssdev = ovl->get_device(ovl);
+
+		if (dssdev) {
+			def_display = dssdev;
 		} else {
 			dev_warn(&pdev->dev, "cannot find display\n");
 			def_display = NULL;
@@ -2253,8 +2276,10 @@ probe_err1:
 	for (i = 1; i < vid_dev->num_overlays; i++) {
 		def_display = NULL;
 		ovl = omap_dss_get_overlay(i);
-		if (ovl->manager && ovl->manager->device)
-			def_display = ovl->manager->device;
+		dssdev = ovl->get_device(ovl);
+
+		if (dssdev)
+			def_display = dssdev;
 
 		if (def_display && def_display->driver)
 			def_display->driver->disable(def_display);