1 files changed, 140 insertions, 97 deletions

diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 9e1fbe531bf0..545e9b9a4d92 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -33,6 +33,7 @@
 #include <plat/cpu.h>
 
 #include "dss.h"
+#include "dss_features.h"
 
 static int num_managers;
 static struct list_head manager_list;
@@ -440,12 +441,16 @@ struct manager_cache_data {
 
 	/* manual update region */
 	u16 x, y, w, h;
+
+	/* enlarge the update area if the update area contains scaled
+	 * overlays */
+	bool enlarge_update_area;
 };
 
 static struct {
 	spinlock_t lock;
-	struct overlay_cache_data overlay_cache[3];
-	struct manager_cache_data manager_cache[2];
+	struct overlay_cache_data overlay_cache[MAX_DSS_OVERLAYS];
+	struct manager_cache_data manager_cache[MAX_DSS_MANAGERS];
 
 	bool irq_enabled;
 } dss_cache;
@@ -525,7 +530,7 @@ static int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
 	int i;
 	struct omap_dss_device *dssdev = mgr->device;
 
-	if (!dssdev)
+	if (!dssdev || dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
 		return 0;
 
 	if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) {
@@ -596,11 +601,14 @@ int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
 	int r;
 	int i;
 
-	if (!ovl->manager || !ovl->manager->device)
+	if (!ovl->manager)
 		return 0;
 
 	dssdev = ovl->manager->device;
 
+	if (!dssdev || dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
+		return 0;
+
 	if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) {
 		irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
 		channel = OMAP_DSS_CHANNEL_DIGIT;
@@ -718,6 +726,7 @@ static int configure_overlay(enum omap_plane plane)
 	u16 x, y, w, h;
 	u32 paddr;
 	int r;
+	u16 orig_w, orig_h, orig_outw, orig_outh;
 
 	DSSDBGF("%d", plane);
 
@@ -738,8 +747,16 @@ static int configure_overlay(enum omap_plane plane)
 	outh = c->out_height == 0 ? c->height : c->out_height;
 	paddr = c->paddr;
 
+	orig_w = w;
+	orig_h = h;
+	orig_outw = outw;
+	orig_outh = outh;
+
 	if (c->manual_update && mc->do_manual_update) {
 		unsigned bpp;
+		unsigned scale_x_m = w, scale_x_d = outw;
+		unsigned scale_y_m = h, scale_y_d = outh;
+
 		/* If the overlay is outside the update region, disable it */
 		if (!rectangle_intersects(mc->x, mc->y, mc->w, mc->h,
 					x, y, outw, outh)) {
@@ -770,38 +787,47 @@ static int configure_overlay(enum omap_plane plane)
 			BUG();
 		}
 
-		if (dispc_is_overlay_scaled(c)) {
-			/* If the overlay is scaled, the update area has
-			 * already been enlarged to cover the whole overlay. We
-			 * only need to adjust x/y here */
-			x = c->pos_x - mc->x;
-			y = c->pos_y - mc->y;
+		if (mc->x > c->pos_x) {
+			x = 0;
+			outw -= (mc->x - c->pos_x);
+			paddr += (mc->x - c->pos_x) *
+				scale_x_m / scale_x_d * bpp / 8;
 		} else {
-			if (mc->x > c->pos_x) {
-				x = 0;
-				w -= (mc->x - c->pos_x);
-				paddr += (mc->x - c->pos_x) * bpp / 8;
-			} else {
-				x = c->pos_x - mc->x;
-			}
-
-			if (mc->y > c->pos_y) {
-				y = 0;
-				h -= (mc->y - c->pos_y);
-				paddr += (mc->y - c->pos_y) * c->screen_width *
-					bpp / 8;
-			} else {
-				y = c->pos_y - mc->y;
-			}
-
-			if (mc->w < (x+w))
-				w -= (x+w) - (mc->w);
+			x = c->pos_x - mc->x;
+		}
 
-			if (mc->h < (y+h))
-				h -= (y+h) - (mc->h);
+		if (mc->y > c->pos_y) {
+			y = 0;
+			outh -= (mc->y - c->pos_y);
+			paddr += (mc->y - c->pos_y) *
+				scale_y_m / scale_y_d *
+				c->screen_width * bpp / 8;
+		} else {
+			y = c->pos_y - mc->y;
+		}
 
-			outw = w;
-			outh = h;
+		if (mc->w < (x + outw))
+			outw -= (x + outw) - (mc->w);
+
+		if (mc->h < (y + outh))
+			outh -= (y + outh) - (mc->h);
+
+		w = w * outw / orig_outw;
+		h = h * outh / orig_outh;
+
+		/* YUV mode overlay's input width has to be even and the
+		 * algorithm above may adjust the width to be odd.
+		 *
+		 * Here we adjust the width if needed, preferring to increase
+		 * the width if the original width was bigger.
+		 */
+		if ((w & 1) &&
+				(c->color_mode == OMAP_DSS_COLOR_YUV2 ||
+				 c->color_mode == OMAP_DSS_COLOR_UYVY)) {
+			if (orig_w > w)
+				w += 1;
+			else
+				w -= 1;
 		}
 	}
 
@@ -857,12 +883,12 @@ static int configure_dispc(void)
 {
 	struct overlay_cache_data *oc;
 	struct manager_cache_data *mc;
-	const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
-	const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache);
+	const int num_ovls = dss_feat_get_num_ovls();
+	const int num_mgrs = dss_feat_get_num_mgrs();
 	int i;
 	int r;
-	bool mgr_busy[2];
-	bool mgr_go[2];
+	bool mgr_busy[MAX_DSS_MANAGERS];
+	bool mgr_go[MAX_DSS_MANAGERS];
 	bool busy;
 
 	r = 0;
@@ -960,15 +986,16 @@ static void make_even(u16 *x, u16 *w)
 /* Configure dispc for partial update. Return possibly modified update
  * area */
 void dss_setup_partial_planes(struct omap_dss_device *dssdev,
-		u16 *xi, u16 *yi, u16 *wi, u16 *hi)
+		u16 *xi, u16 *yi, u16 *wi, u16 *hi, bool enlarge_update_area)
 {
 	struct overlay_cache_data *oc;
 	struct manager_cache_data *mc;
-	const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
+	const int num_ovls = dss_feat_get_num_ovls();
 	struct omap_overlay_manager *mgr;
 	int i;
 	u16 x, y, w, h;
 	unsigned long flags;
+	bool area_changed;
 
 	x = *xi;
 	y = *yi;
@@ -989,73 +1016,91 @@ void dss_setup_partial_planes(struct omap_dss_device *dssdev,
 
 	spin_lock_irqsave(&dss_cache.lock, flags);
 
-	/* We need to show the whole overlay if it is scaled. So look for
-	 * those, and make the update area larger if found.
-	 * Also mark the overlay cache dirty */
-	for (i = 0; i < num_ovls; ++i) {
-		unsigned x1, y1, x2, y2;
-		unsigned outw, outh;
+	/*
+	 * Execute the outer loop until the inner loop has completed
+	 * once without increasing the update area. This will ensure that
+	 * all scaled overlays end up completely within the update area.
+	 */
+	do {
+		area_changed = false;
 
-		oc = &dss_cache.overlay_cache[i];
+		/* We need to show the whole overlay if it is scaled. So look
+		 * for those, and make the update area larger if found.
+		 * Also mark the overlay cache dirty */
+		for (i = 0; i < num_ovls; ++i) {
+			unsigned x1, y1, x2, y2;
+			unsigned outw, outh;
 
-		if (oc->channel != mgr->id)
-			continue;
+			oc = &dss_cache.overlay_cache[i];
 
-		oc->dirty = true;
+			if (oc->channel != mgr->id)
+				continue;
 
-		if (!oc->enabled)
-			continue;
+			oc->dirty = true;
 
-		if (!dispc_is_overlay_scaled(oc))
-			continue;
+			if (!enlarge_update_area)
+				continue;
 
-		outw = oc->out_width == 0 ? oc->width : oc->out_width;
-		outh = oc->out_height == 0 ? oc->height : oc->out_height;
+			if (!oc->enabled)
+				continue;
 
-		/* is the overlay outside the update region? */
-		if (!rectangle_intersects(x, y, w, h,
-					oc->pos_x, oc->pos_y,
-					outw, outh))
-			continue;
+			if (!dispc_is_overlay_scaled(oc))
+				continue;
 
-		/* if the overlay totally inside the update region? */
-		if (rectangle_subset(oc->pos_x, oc->pos_y, outw, outh,
-					x, y, w, h))
-			continue;
+			outw = oc->out_width == 0 ?
+				oc->width : oc->out_width;
+			outh = oc->out_height == 0 ?
+				oc->height : oc->out_height;
+
+			/* is the overlay outside the update region? */
+			if (!rectangle_intersects(x, y, w, h,
+						oc->pos_x, oc->pos_y,
+						outw, outh))
+				continue;
+
+			/* if the overlay totally inside the update region? */
+			if (rectangle_subset(oc->pos_x, oc->pos_y, outw, outh,
+						x, y, w, h))
+				continue;
 
-		if (x > oc->pos_x)
-			x1 = oc->pos_x;
-		else
-			x1 = x;
+			if (x > oc->pos_x)
+				x1 = oc->pos_x;
+			else
+				x1 = x;
 
-		if (y > oc->pos_y)
-			y1 = oc->pos_y;
-		else
-			y1 = y;
+			if (y > oc->pos_y)
+				y1 = oc->pos_y;
+			else
+				y1 = y;
 
-		if ((x + w) < (oc->pos_x + outw))
-			x2 = oc->pos_x + outw;
-		else
-			x2 = x + w;
+			if ((x + w) < (oc->pos_x + outw))
+				x2 = oc->pos_x + outw;
+			else
+				x2 = x + w;
 
-		if ((y + h) < (oc->pos_y + outh))
-			y2 = oc->pos_y + outh;
-		else
-			y2 = y + h;
+			if ((y + h) < (oc->pos_y + outh))
+				y2 = oc->pos_y + outh;
+			else
+				y2 = y + h;
 
-		x = x1;
-		y = y1;
-		w = x2 - x1;
-		h = y2 - y1;
+			x = x1;
+			y = y1;
+			w = x2 - x1;
+			h = y2 - y1;
 
-		make_even(&x, &w);
+			make_even(&x, &w);
 
-		DSSDBG("changing upd area due to ovl(%d) scaling %d,%d %dx%d\n",
+			DSSDBG("changing upd area due to ovl(%d) "
+			       "scaling %d,%d %dx%d\n",
 				i, x, y, w, h);
-	}
+
+			area_changed = true;
+		}
+	} while (area_changed);
 
 	mc = &dss_cache.manager_cache[mgr->id];
 	mc->do_manual_update = true;
+	mc->enlarge_update_area = enlarge_update_area;
 	mc->x = x;
 	mc->y = y;
 	mc->w = w;
@@ -1077,8 +1122,8 @@ void dss_start_update(struct omap_dss_device *dssdev)
 {
 	struct manager_cache_data *mc;
 	struct overlay_cache_data *oc;
-	const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
-	const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache);
+	const int num_ovls = dss_feat_get_num_ovls();
+	const int num_mgrs = dss_feat_get_num_mgrs();
 	struct omap_overlay_manager *mgr;
 	int i;
 
@@ -1107,10 +1152,10 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 {
 	struct manager_cache_data *mc;
 	struct overlay_cache_data *oc;
-	const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
-	const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache);
+	const int num_ovls = dss_feat_get_num_ovls();
+	const int num_mgrs = dss_feat_get_num_mgrs();
 	int i, r;
-	bool mgr_busy[2];
+	bool mgr_busy[MAX_DSS_MANAGERS];
 
 	mgr_busy[0] = dispc_go_busy(0);
 	mgr_busy[1] = dispc_go_busy(1);
@@ -1417,7 +1462,7 @@ int dss_init_overlay_managers(struct platform_device *pdev)
 
 	num_managers = 0;
 
-	for (i = 0; i < 2; ++i) {
+	for (i = 0; i < dss_feat_get_num_mgrs(); ++i) {
 		struct omap_overlay_manager *mgr;
 		mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
 
@@ -1427,14 +1472,10 @@ int dss_init_overlay_managers(struct platform_device *pdev)
 		case 0:
 			mgr->name = "lcd";
 			mgr->id = OMAP_DSS_CHANNEL_LCD;
-			mgr->supported_displays =
-				OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI |
-				OMAP_DISPLAY_TYPE_SDI | OMAP_DISPLAY_TYPE_DSI;
 			break;
 		case 1:
 			mgr->name = "tv";
 			mgr->id = OMAP_DSS_CHANNEL_DIGIT;
-			mgr->supported_displays = OMAP_DISPLAY_TYPE_VENC;
 			break;
 		}
 
@@ -1450,6 +1491,8 @@ int dss_init_overlay_managers(struct platform_device *pdev)
 		mgr->disable = &dss_mgr_disable;
 
 		mgr->caps = OMAP_DSS_OVL_MGR_CAP_DISPC;
+		mgr->supported_displays =
+			dss_feat_get_supported_displays(mgr->id);
 
 		dss_overlay_setup_dispc_manager(mgr);