forked from ~ljy/RK356X_SDK_RELEASE
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hc
2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e 
 kernel/drivers/gpu/drm/rockchip/rockchip_rgb.c
....@@ -68,7 +68,8 @@
6868 };
6969 
7070 struct rockchip_rgb_data {
71
-	u32 max_dclk_rate;
71
+	u32 rgb_max_dclk_rate;
72
+	u32 mcu_max_dclk_rate;
7273 	const struct rockchip_rgb_funcs *funcs;
7374 };
7475 
....@@ -129,7 +130,9 @@
129130 struct rockchip_rgb {
130131 	u8 id;
131132 	u32 max_dclk_rate;
133
+	u32 mcu_pix_total;
132134 	struct device *dev;
135
+	struct device_node *np_mcu_panel;
133136 	struct drm_panel *panel;
134137 	struct drm_bridge *bridge;
135138 	struct drm_connector connector;
....@@ -137,7 +140,6 @@
137140 	struct phy *phy;
138141 	struct regmap *grf;
139142 	bool data_sync_bypass;
140
-	bool is_mcu_panel;
141143 	bool phy_enabled;
142144 	const struct rockchip_rgb_funcs *funcs;
143145 	struct rockchip_drm_sub_dev sub_dev;
....@@ -277,6 +279,15 @@
277279 		s->output_mode = ROCKCHIP_OUT_MODE_P565;
278280 		s->output_if = VOP_OUTPUT_IF_RGB;
279281 		break;
282
+	case MEDIA_BUS_FMT_RGB565_2X8_LE:
283
+	case MEDIA_BUS_FMT_BGR565_2X8_LE:
284
+		s->output_mode = ROCKCHIP_OUT_MODE_S565;
285
+		s->output_if = VOP_OUTPUT_IF_RGB;
286
+		break;
287
+	case MEDIA_BUS_FMT_RGB666_3X6:
288
+		s->output_mode = ROCKCHIP_OUT_MODE_S666;
289
+		s->output_if = VOP_OUTPUT_IF_RGB;
290
+		break;
280291 	case MEDIA_BUS_FMT_RGB888_3X8:
281292 	case MEDIA_BUS_FMT_BGR888_3X8:
282293 		s->output_mode = ROCKCHIP_OUT_MODE_S888;
....@@ -323,7 +334,7 @@
323334 {
324335 	struct rockchip_rgb *rgb = encoder_to_rgb(encoder);
325336 
326
-	if (rgb->is_mcu_panel) {
337
+	if (rgb->np_mcu_panel) {
327338 		struct rockchip_mcu_panel *mcu_panel = to_rockchip_mcu_panel(rgb->panel);
328339 
329340 		mcu_panel->prepared = true;
....@@ -358,11 +369,22 @@
358369 {
359370 	struct rockchip_rgb *rgb = encoder_to_rgb(encoder);
360371 	struct device *dev = rgb->dev;
372
+	struct drm_display_info *info = &rgb->connector.display_info;
361373 	u32 request_clock = mode->clock;
362374 	u32 max_clock = rgb->max_dclk_rate;
375
+	u32 bus_format;
376
+
377
+	if (info->num_bus_formats)
378
+		bus_format = info->bus_formats[0];
379
+	else
380
+		bus_format = MEDIA_BUS_FMT_RGB888_1X24;
363381 
364382 	if (mode->flags & DRM_MODE_FLAG_DBLCLK)
365383 		request_clock *= 2;
384
+
385
+	if (rgb->np_mcu_panel)
386
+		request_clock *= rockchip_drm_get_cycles_per_pixel(bus_format) *
387
+				 (rgb->mcu_pix_total + 1);
366388 
367389 	if (max_clock != 0 && request_clock > max_clock) {
368390 		DRM_DEV_ERROR(dev, "mode [%dx%d] clock %d is higher than max_clock %d\n",
....@@ -444,16 +466,18 @@
444466 	return 0;
445467 }
446468 
447
-static int rockchip_mcu_panel_init(struct rockchip_rgb *rgb, struct device_node *np_mcu_panel)
469
+static int rockchip_mcu_panel_init(struct rockchip_rgb *rgb)
448470 {
449471 	struct device *dev = rgb->dev;
450
-	struct device_node *port, *endpoint, *np_crtc, *remote;
472
+	struct device_node *np_mcu_panel = rgb->np_mcu_panel;
473
+	struct device_node *port, *endpoint, *np_crtc, *remote, *np_mcu_timing;
451474 	struct rockchip_mcu_panel *mcu_panel = to_rockchip_mcu_panel(rgb->panel);
452475 	struct drm_display_mode *mode;
453476 	const void *data;
454477 	int len;
455478 	int ret;
456479 	u32 bus_flags;
480
+	u32 val;
457481 
458482 	mcu_panel->enable_gpio = devm_fwnode_gpiod_get_index(dev, &np_mcu_panel->fwnode,
459483 							     "enable", 0, GPIOD_ASIS,
....@@ -544,6 +568,8 @@
544568 				if (remote) {
545569 					np_crtc = of_get_next_parent(remote);
546570 					mcu_panel->np_crtc = np_crtc;
571
+
572
+					of_node_put(np_crtc);
547573 					break;
548574 				}
549575 			}
....@@ -553,6 +579,31 @@
553579 			DRM_DEV_ERROR(dev, "failed to find available crtc for mcu panel\n");
554580 			return -EINVAL;
555581 		}
582
+
583
+		np_mcu_timing = of_get_child_by_name(mcu_panel->np_crtc, "mcu-timing");
584
+		if (!np_mcu_timing) {
585
+			np_crtc = of_get_parent(mcu_panel->np_crtc);
586
+			if (np_crtc)
587
+				np_mcu_timing = of_get_child_by_name(np_crtc, "mcu-timing");
588
+
589
+			if (!np_mcu_timing) {
590
+				DRM_DEV_ERROR(dev, "failed to find timing config for mcu panel\n");
591
+				of_node_put(np_crtc);
592
+				return -EINVAL;
593
+			}
594
+
595
+			of_node_put(np_crtc);
596
+		}
597
+
598
+		ret = of_property_read_u32(np_mcu_timing, "mcu-pix-total", &val);
599
+		if (ret || val == 0) {
600
+			DRM_DEV_ERROR(dev, "failed to parse mcu_pix_total config\n");
601
+			of_node_put(np_mcu_timing);
602
+			return -EINVAL;
603
+		}
604
+		rgb->mcu_pix_total = val;
605
+
606
+		of_node_put(np_mcu_timing);
556607 	}
557608 
558609 	return 0;
....@@ -741,9 +792,10 @@
741792 	.get_modes = rockchip_mcu_panel_get_modes,
742793 };
743794 
744
-static struct backlight_device *rockchip_mcu_panel_find_backlight(struct device_node *np_mcu_panel)
795
+static struct backlight_device *rockchip_mcu_panel_find_backlight(struct rockchip_rgb *rgb)
745796 {
746797 	struct backlight_device *bd = NULL;
798
+	struct device_node *np_mcu_panel = rgb->np_mcu_panel;
747799 	struct device_node *np = NULL;
748800 
749801 	np = of_parse_phandle(np_mcu_panel, "backlight", 0);
....@@ -768,45 +820,35 @@
768820 	struct drm_device *drm_dev = data;
769821 	struct drm_encoder *encoder = &rgb->encoder;
770822 	struct drm_connector *connector;
771
-	struct fwnode_handle *fwnode_mcu_panel;
772823 	int ret;
773824 
774
-	fwnode_mcu_panel = device_get_named_child_node(dev, "mcu-panel");
775
-	if (fwnode_mcu_panel) {
825
+	if (rgb->np_mcu_panel) {
776826 		struct rockchip_mcu_panel *mcu_panel;
777
-		struct device_node *np_mcu_panel = to_of_node(fwnode_mcu_panel);
778827 
779828 		mcu_panel = devm_kzalloc(dev, sizeof(*mcu_panel), GFP_KERNEL);
780829 		if (!mcu_panel) {
781
-			of_node_put(np_mcu_panel);
782830 			return -ENOMEM;
783831 		}
784832 		mcu_panel->drm_dev = drm_dev;
785833 
786834 		rgb->panel = &mcu_panel->base;
787835 
788
-		ret = rockchip_mcu_panel_init(rgb, np_mcu_panel);
836
+		ret = rockchip_mcu_panel_init(rgb);
789837 		if (ret < 0) {
790838 			DRM_DEV_ERROR(dev, "failed to init mcu panel: %d\n", ret);
791
-			of_node_put(np_mcu_panel);
792839 			return ret;
793840 		}
794841 
795
-		rgb->panel->backlight = rockchip_mcu_panel_find_backlight(np_mcu_panel);
842
+		rgb->panel->backlight = rockchip_mcu_panel_find_backlight(rgb);
796843 		if (!rgb->panel->backlight) {
797844 			DRM_DEV_ERROR(dev, "failed to find backlight device");
798
-			of_node_put(np_mcu_panel);
799845 			return -EINVAL;
800846 		}
801
-
802
-		of_node_put(np_mcu_panel);
803847 
804848 		drm_panel_init(&mcu_panel->base, dev, &rockchip_mcu_panel_funcs,
805849 			       DRM_MODE_CONNECTOR_DPI);
806850 
807851 		drm_panel_add(&mcu_panel->base);
808
-
809
-		rgb->is_mcu_panel = true;
810852 	} else {
811853 		ret = drm_of_find_panel_or_bridge(dev->of_node, 1, -1,
812854 						  &rgb->panel, &rgb->bridge);
....@@ -899,6 +941,7 @@
899941 	struct device *dev = &pdev->dev;
900942 	struct rockchip_rgb *rgb;
901943 	const struct rockchip_rgb_data *rgb_data;
944
+	struct fwnode_handle *fwnode_mcu_panel;
902945 	int ret, id;
903946 
904947 	rgb = devm_kzalloc(&pdev->dev, sizeof(*rgb), GFP_KERNEL);
....@@ -909,17 +952,23 @@
909952 	if (id < 0)
910953 		id = 0;
911954 
955
+	rgb->data_sync_bypass = of_property_read_bool(dev->of_node, "rockchip,data-sync-bypass");
956
+
957
+	fwnode_mcu_panel = device_get_named_child_node(dev, "mcu-panel");
958
+	if (fwnode_mcu_panel)
959
+		rgb->np_mcu_panel = to_of_node(fwnode_mcu_panel);
960
+
912961 	rgb_data = of_device_get_match_data(dev);
913962 	if (rgb_data) {
914
-		rgb->max_dclk_rate = rgb_data->max_dclk_rate;
915963 		rgb->funcs = rgb_data->funcs;
964
+		if (rgb->np_mcu_panel)
965
+			rgb->max_dclk_rate = rgb_data->mcu_max_dclk_rate;
966
+		else
967
+			rgb->max_dclk_rate = rgb_data->rgb_max_dclk_rate;
916968 	}
917969 	rgb->id = id;
918970 	rgb->dev = dev;
919971 	platform_set_drvdata(pdev, rgb);
920
-
921
-	rgb->data_sync_bypass =
922
-	    of_property_read_bool(dev->of_node, "rockchip,data-sync-bypass");
923972 
924973 	if (dev->parent && dev->parent->of_node) {
925974 		rgb->grf = syscon_node_to_regmap(dev->parent->of_node);
....@@ -1061,7 +1110,8 @@
10611110 };
10621111 
10631112 static const struct rockchip_rgb_data rv1106_rgb = {
1064
-	.max_dclk_rate = 74250,
1113
+	.rgb_max_dclk_rate = 74250,
1114
+	.mcu_max_dclk_rate = 150000,
10651115 	.funcs = &rv1106_rgb_funcs,
10661116 };
10671117