xref: /rk3399_rockchip-uboot/drivers/video/drm/rockchip_display.c (revision 13ceb2afdcb6f5114908e39f0d2453728eb24e0f)
1 /*
2  * (C) Copyright 2008-2017 Fuzhou Rockchip Electronics Co., Ltd
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <asm/unaligned.h>
8 #include <boot_rkimg.h>
9 #include <config.h>
10 #include <common.h>
11 #include <errno.h>
12 #include <linux/libfdt.h>
13 #include <fdtdec.h>
14 #include <fdt_support.h>
15 #include <linux/hdmi.h>
16 #include <linux/list.h>
17 #include <linux/compat.h>
18 #include <linux/media-bus-format.h>
19 #include <malloc.h>
20 #include <memalign.h>
21 #include <video.h>
22 #include <video_rockchip.h>
23 #include <video_bridge.h>
24 #include <dm/device.h>
25 #include <dm/uclass-internal.h>
26 #include <asm/arch-rockchip/resource_img.h>
27 #include <asm/arch-rockchip/cpu.h>
28 
29 #include "bmp_helper.h"
30 #include "libnsbmp.h"
31 #include "rockchip_display.h"
32 #include "rockchip_crtc.h"
33 #include "rockchip_connector.h"
34 #include "rockchip_bridge.h"
35 #include "rockchip_phy.h"
36 #include "rockchip_panel.h"
37 #include <dm.h>
38 #include <dm/of_access.h>
39 #include <dm/ofnode.h>
40 #include <asm/io.h>
41 
42 #define DRIVER_VERSION	"v1.0.1"
43 
44 /***********************************************************************
45  *  Rockchip UBOOT DRM driver version
46  *
47  *  v1.0.0	: add basic version for rockchip drm driver(hjc)
48  *  v1.0.1	: add much dsi update(hjc)
49  *
50  **********************************************************************/
51 
52 #define RK_BLK_SIZE 512
53 #define BMP_PROCESSED_FLAG 8399
54 #define BYTES_PER_PIXEL sizeof(uint32_t)
55 #define MAX_IMAGE_BYTES (8 * 1024 * 1024)
56 
57 DECLARE_GLOBAL_DATA_PTR;
58 static LIST_HEAD(rockchip_display_list);
59 static LIST_HEAD(logo_cache_list);
60 
61 static unsigned long memory_start;
62 static unsigned long cubic_lut_memory_start;
63 static unsigned long memory_end;
64 static struct base2_info base_parameter;
65 static u32 align_size = PAGE_SIZE;
66 
67 /*
68  * the phy types are used by different connectors in public.
69  * The current version only has inno hdmi phy for hdmi and tve.
70  */
71 enum public_use_phy {
72 	NONE,
73 	INNO_HDMI_PHY
74 };
75 
76 /* save public phy data */
77 struct public_phy_data {
78 	const struct rockchip_phy *phy_drv;
79 	int phy_node;
80 	int public_phy_type;
81 	bool phy_init;
82 };
83 
84 char* rockchip_get_output_if_name(u32 output_if, char *name)
85 {
86 	if (output_if & VOP_OUTPUT_IF_RGB)
87 		strcat(name, " RGB");
88 	if (output_if & VOP_OUTPUT_IF_BT1120)
89 		strcat(name, " BT1120");
90 	if (output_if & VOP_OUTPUT_IF_BT656)
91 		strcat(name, " BT656");
92 	if (output_if & VOP_OUTPUT_IF_LVDS0)
93 		strcat(name, " LVDS0");
94 	if (output_if & VOP_OUTPUT_IF_LVDS1)
95 		strcat(name, " LVDS1");
96 	if (output_if & VOP_OUTPUT_IF_MIPI0)
97 		strcat(name, " MIPI0");
98 	if (output_if & VOP_OUTPUT_IF_MIPI1)
99 		strcat(name, " MIPI1");
100 	if (output_if & VOP_OUTPUT_IF_eDP0)
101 		strcat(name, " eDP0");
102 	if (output_if & VOP_OUTPUT_IF_eDP1)
103 		strcat(name, " eDP1");
104 	if (output_if & VOP_OUTPUT_IF_DP0)
105 		strcat(name, " DP0");
106 	if (output_if & VOP_OUTPUT_IF_DP1)
107 		strcat(name, " DP1");
108 	if (output_if & VOP_OUTPUT_IF_HDMI0)
109 		strcat(name, " HDMI0");
110 	if (output_if & VOP_OUTPUT_IF_HDMI1)
111 		strcat(name, " HDMI1");
112 
113 	return name;
114 }
115 
116 u32 rockchip_drm_get_cycles_per_pixel(u32 bus_format)
117 {
118 	switch (bus_format) {
119 	case MEDIA_BUS_FMT_RGB565_1X16:
120 	case MEDIA_BUS_FMT_RGB666_1X18:
121 	case MEDIA_BUS_FMT_RGB888_1X24:
122 	case MEDIA_BUS_FMT_RGB666_1X24_CPADHI:
123 		return 1;
124 	case MEDIA_BUS_FMT_RGB565_2X8_LE:
125 	case MEDIA_BUS_FMT_BGR565_2X8_LE:
126 		return 2;
127 	case MEDIA_BUS_FMT_RGB666_3X6:
128 	case MEDIA_BUS_FMT_RGB888_3X8:
129 	case MEDIA_BUS_FMT_BGR888_3X8:
130 		return 3;
131 	case MEDIA_BUS_FMT_RGB888_DUMMY_4X8:
132 	case MEDIA_BUS_FMT_BGR888_DUMMY_4X8:
133 		return 4;
134 	default:
135 		return 1;
136 	}
137 }
138 
139 int rockchip_get_baseparameter(void)
140 {
141 	struct blk_desc *dev_desc;
142 	disk_partition_t part_info;
143 	int block_num;
144 	char *baseparameter_buf;
145 	int ret = 0;
146 
147 	dev_desc = rockchip_get_bootdev();
148 	if (!dev_desc) {
149 		printf("%s: Could not find device\n", __func__);
150 		return -ENOENT;
151 	}
152 
153 	if (part_get_info_by_name(dev_desc, "baseparameter", &part_info) < 0) {
154 		printf("Could not find baseparameter partition\n");
155 		return -ENOENT;
156 	}
157 
158 	block_num = BLOCK_CNT(sizeof(base_parameter), dev_desc);
159 	baseparameter_buf = memalign(ARCH_DMA_MINALIGN, block_num * dev_desc->blksz);
160 	if (!baseparameter_buf) {
161 		printf("failed to alloc memory for baseparameter buffer\n");
162 		return -ENOMEM;
163 	}
164 
165 	ret = blk_dread(dev_desc, part_info.start, block_num, (void *)baseparameter_buf);
166 	if (ret < 0) {
167 		printf("read baseparameter failed\n");
168 		goto out;
169 	}
170 
171 	memcpy(&base_parameter, baseparameter_buf, sizeof(base_parameter));
172 	if (strncasecmp(base_parameter.head_flag, "BASP", 4)) {
173 		printf("warning: bad baseparameter\n");
174 		memset(&base_parameter, 0, sizeof(base_parameter));
175 	}
176 	rockchip_display_make_crc32_table();
177 
178 out:
179 	free(baseparameter_buf);
180 	return ret;
181 }
182 
183 struct base2_disp_info *rockchip_get_disp_info(int type, int id)
184 {
185 	struct base2_disp_info *disp_info;
186 	struct base2_disp_header *disp_header;
187 	int i = 0, offset = -1;
188 	u32 crc_val;
189 	u32 base2_length;
190 	void *base_parameter_addr = (void *)&base_parameter;
191 
192 	for (i = 0; i < 8; i++) {
193 		disp_header = &base_parameter.disp_header[i];
194 		if (disp_header->connector_type == type &&
195 		    disp_header->connector_id == id) {
196 			printf("disp info %d, type:%d, id:%d\n", i, type, id);
197 			offset = disp_header->offset;
198 			break;
199 		}
200 	}
201 
202 	if (offset < 0)
203 		return NULL;
204 	disp_info = base_parameter_addr + offset;
205 	if (disp_info->screen_info[0].type != type ||
206 	    disp_info->screen_info[0].id != id) {
207 		printf("base2_disp_info couldn't be found, screen_info type[%d] or id[%d] mismatched\n",
208 		       disp_info->screen_info[0].type,
209 		       disp_info->screen_info[0].id);
210 		return NULL;
211 	}
212 
213 	if (strncasecmp(disp_info->disp_head_flag, "DISP", 4))
214 		return NULL;
215 
216 	if (base_parameter.major_version == 3 && base_parameter.minor_version == 0) {
217 		crc_val = rockchip_display_crc32c_cal((unsigned char *)disp_info,
218 						      sizeof(struct base2_disp_info) - 4);
219 		if (crc_val != disp_info->crc2) {
220 			printf("error: connector type[%d], id[%d] disp info crc2 check error\n",
221 			       type, id);
222 			return NULL;
223 		}
224 	} else {
225 		base2_length = sizeof(struct base2_disp_info) - sizeof(struct csc_info) -
226 			       sizeof(struct acm_data) - 10 * 1024 - 4;
227 		crc_val = rockchip_display_crc32c_cal((unsigned char *)disp_info, base2_length - 4);
228 		if (crc_val != disp_info->crc) {
229 			printf("error: connector type[%d], id[%d] disp info crc check error\n",
230 			       type, id);
231 			return NULL;
232 		}
233 	}
234 
235 	return disp_info;
236 }
237 
238 /* check which kind of public phy does connector use */
239 static int check_public_use_phy(struct rockchip_connector *conn)
240 {
241 	int ret = NONE;
242 #ifdef CONFIG_ROCKCHIP_INNO_HDMI_PHY
243 
244 	if (!strncmp(dev_read_name(conn->dev), "tve", 3) ||
245 	    !strncmp(dev_read_name(conn->dev), "hdmi", 4))
246 		ret = INNO_HDMI_PHY;
247 #endif
248 
249 	return ret;
250 }
251 
252 /*
253  * get public phy driver and initialize it.
254  * The current version only has inno hdmi phy for hdmi and tve.
255  */
256 static int get_public_phy(struct rockchip_connector *conn,
257 			  struct public_phy_data *data)
258 {
259 	struct rockchip_phy *phy;
260 	struct udevice *dev;
261 	int ret = 0;
262 
263 	switch (data->public_phy_type) {
264 	case INNO_HDMI_PHY:
265 #if defined(CONFIG_ROCKCHIP_RK3328)
266 		ret = uclass_get_device_by_name(UCLASS_PHY,
267 						"hdmiphy@ff430000", &dev);
268 #elif defined(CONFIG_ROCKCHIP_RK322X)
269 		ret = uclass_get_device_by_name(UCLASS_PHY,
270 						"hdmi-phy@12030000", &dev);
271 #else
272 		ret = -EINVAL;
273 #endif
274 		if (ret) {
275 			printf("Warn: can't find phy driver\n");
276 			return 0;
277 		}
278 
279 		phy = (struct rockchip_phy *)dev_get_driver_data(dev);
280 		if (!phy) {
281 			printf("failed to get phy driver\n");
282 			return 0;
283 		}
284 
285 		ret = rockchip_phy_init(phy);
286 		if (ret) {
287 			printf("failed to init phy driver\n");
288 			return ret;
289 		}
290 		conn->phy = phy;
291 
292 		debug("inno hdmi phy init success, save it\n");
293 		data->phy_drv = conn->phy;
294 		data->phy_init = true;
295 		return 0;
296 	default:
297 		return -EINVAL;
298 	}
299 }
300 
301 static void init_display_buffer(ulong base)
302 {
303 	memory_start = ALIGN(base + DRM_ROCKCHIP_FB_SIZE, align_size);
304 	memory_end = memory_start;
305 	cubic_lut_memory_start = ALIGN(memory_start + MEMORY_POOL_SIZE, align_size);
306 }
307 
308 void *get_display_buffer(int size)
309 {
310 	unsigned long roundup_memory = roundup(memory_end, PAGE_SIZE);
311 	void *buf;
312 
313 	if (roundup_memory + size > memory_start + MEMORY_POOL_SIZE) {
314 		printf("failed to alloc %dbyte memory to display\n", size);
315 		return NULL;
316 	}
317 	buf = (void *)roundup_memory;
318 
319 	memory_end = roundup_memory + size;
320 
321 	return buf;
322 }
323 
324 static unsigned long get_display_size(void)
325 {
326 	return memory_end - memory_start;
327 }
328 
329 static unsigned long get_single_cubic_lut_size(void)
330 {
331 	ulong cubic_lut_size;
332 	int cubic_lut_step = CONFIG_ROCKCHIP_CUBIC_LUT_SIZE;
333 
334 	/* This is depend on IC designed */
335 	cubic_lut_size = (cubic_lut_step * cubic_lut_step * cubic_lut_step + 1) / 2 * 16;
336 	cubic_lut_size = roundup(cubic_lut_size, PAGE_SIZE);
337 
338 	return cubic_lut_size;
339 }
340 
341 static unsigned long get_cubic_lut_offset(int crtc_id)
342 {
343 	return crtc_id * get_single_cubic_lut_size();
344 }
345 
346 unsigned long get_cubic_lut_buffer(int crtc_id)
347 {
348 	return cubic_lut_memory_start + crtc_id * get_single_cubic_lut_size();
349 }
350 
351 static unsigned long get_cubic_memory_size(void)
352 {
353 	/* Max support 4 cubic lut */
354 	return get_single_cubic_lut_size() * 4;
355 }
356 
357 bool can_direct_logo(int bpp)
358 {
359 	return bpp == 16 || bpp == 32;
360 }
361 
362 static int connector_phy_init(struct rockchip_connector *conn,
363 			      struct public_phy_data *data)
364 {
365 	int type;
366 
367 	/* does this connector use public phy with others */
368 	type = check_public_use_phy(conn);
369 	if (type == INNO_HDMI_PHY) {
370 		/* there is no public phy was initialized */
371 		if (!data->phy_init) {
372 			debug("start get public phy\n");
373 			data->public_phy_type = type;
374 			if (get_public_phy(conn, data)) {
375 				printf("can't find correct public phy type\n");
376 				free(data);
377 				return -EINVAL;
378 			}
379 			return 0;
380 		}
381 
382 		/* if this phy has been initialized, get it directly */
383 		conn->phy = (struct rockchip_phy *)data->phy_drv;
384 		return 0;
385 	}
386 
387 	return 0;
388 }
389 
390 int rockchip_ofnode_get_display_mode(ofnode node, struct drm_display_mode *mode, u32 *bus_flags)
391 {
392 	int hactive, vactive, pixelclock;
393 	int hfront_porch, hback_porch, hsync_len;
394 	int vfront_porch, vback_porch, vsync_len;
395 	int val, flags = 0;
396 
397 #define FDT_GET_BOOL(val, name) \
398 	val = ofnode_read_bool(node, name);
399 
400 #define FDT_GET_INT(val, name) \
401 	val = ofnode_read_s32_default(node, name, -1); \
402 	if (val < 0) { \
403 		printf("Can't get %s\n", name); \
404 		return -ENXIO; \
405 	}
406 
407 #define FDT_GET_INT_DEFAULT(val, name, default) \
408 	val = ofnode_read_s32_default(node, name, default);
409 
410 	FDT_GET_INT(hactive, "hactive");
411 	FDT_GET_INT(vactive, "vactive");
412 	FDT_GET_INT(pixelclock, "clock-frequency");
413 	FDT_GET_INT(hsync_len, "hsync-len");
414 	FDT_GET_INT(hfront_porch, "hfront-porch");
415 	FDT_GET_INT(hback_porch, "hback-porch");
416 	FDT_GET_INT(vsync_len, "vsync-len");
417 	FDT_GET_INT(vfront_porch, "vfront-porch");
418 	FDT_GET_INT(vback_porch, "vback-porch");
419 	FDT_GET_INT(val, "hsync-active");
420 	flags |= val ? DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
421 	FDT_GET_INT(val, "vsync-active");
422 	flags |= val ? DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
423 
424 	FDT_GET_BOOL(val, "interlaced");
425 	flags |= val ? DRM_MODE_FLAG_INTERLACE : 0;
426 	FDT_GET_BOOL(val, "doublescan");
427 	flags |= val ? DRM_MODE_FLAG_DBLSCAN : 0;
428 	FDT_GET_BOOL(val, "doubleclk");
429 	flags |= val ? DRM_MODE_FLAG_DBLCLK : 0;
430 
431 	FDT_GET_INT(val, "de-active");
432 	*bus_flags |= val ? DRM_BUS_FLAG_DE_HIGH : DRM_BUS_FLAG_DE_LOW;
433 	FDT_GET_INT(val, "pixelclk-active");
434 	*bus_flags |= val ? DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE : DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE;
435 
436 	FDT_GET_INT_DEFAULT(val, "screen-rotate", 0);
437 	if (val == DRM_MODE_FLAG_XMIRROR) {
438 		flags |= DRM_MODE_FLAG_XMIRROR;
439 	} else if (val == DRM_MODE_FLAG_YMIRROR) {
440 		flags |= DRM_MODE_FLAG_YMIRROR;
441 	} else if (val == DRM_MODE_FLAG_XYMIRROR) {
442 		flags |= DRM_MODE_FLAG_XMIRROR;
443 		flags |= DRM_MODE_FLAG_YMIRROR;
444 	}
445 	mode->hdisplay = hactive;
446 	mode->hsync_start = mode->hdisplay + hfront_porch;
447 	mode->hsync_end = mode->hsync_start + hsync_len;
448 	mode->htotal = mode->hsync_end + hback_porch;
449 
450 	mode->vdisplay = vactive;
451 	mode->vsync_start = mode->vdisplay + vfront_porch;
452 	mode->vsync_end = mode->vsync_start + vsync_len;
453 	mode->vtotal = mode->vsync_end + vback_porch;
454 
455 	mode->clock = pixelclock / 1000;
456 	mode->flags = flags;
457 	mode->vrefresh = drm_mode_vrefresh(mode);
458 
459 	return 0;
460 }
461 
462 static int display_get_force_timing_from_dts(ofnode node,
463 					     struct drm_display_mode *mode,
464 					     u32 *bus_flags)
465 {
466 	int ret = 0;
467 
468 	ret = rockchip_ofnode_get_display_mode(node, mode, bus_flags);
469 
470 	if (ret) {
471 		mode->clock = 74250;
472 		mode->flags = 0x5;
473 		mode->hdisplay = 1280;
474 		mode->hsync_start = 1390;
475 		mode->hsync_end = 1430;
476 		mode->htotal = 1650;
477 		mode->hskew = 0;
478 		mode->vdisplay = 720;
479 		mode->vsync_start = 725;
480 		mode->vsync_end = 730;
481 		mode->vtotal = 750;
482 		mode->vrefresh = 60;
483 		mode->picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9;
484 		mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
485 	}
486 
487 	printf("route node %s force_timing, use %dx%dp%d as default mode\n",
488 	       ret ? "undefine" : "define", mode->hdisplay, mode->vdisplay,
489 	       mode->vscan);
490 
491 	return 0;
492 }
493 
494 static int display_get_timing_from_dts(struct rockchip_panel *panel,
495 				       struct drm_display_mode *mode,
496 				       u32 *bus_flags)
497 {
498 	struct ofnode_phandle_args args;
499 	ofnode dt, timing, mcu_panel;
500 	int ret;
501 
502 	mcu_panel = dev_read_subnode(panel->dev, "mcu-panel");
503 	dt = dev_read_subnode(panel->dev, "display-timings");
504 	if (ofnode_valid(dt)) {
505 		ret = ofnode_parse_phandle_with_args(dt, "native-mode", NULL,
506 						     0, 0, &args);
507 		if (ret)
508 			return ret;
509 
510 		timing = args.node;
511 	} else if (ofnode_valid(mcu_panel)) {
512 		dt = ofnode_find_subnode(mcu_panel, "display-timings");
513 		ret = ofnode_parse_phandle_with_args(dt, "native-mode", NULL,
514 						     0, 0, &args);
515 		if (ret)
516 			return ret;
517 
518 		timing = args.node;
519 	} else {
520 		timing = dev_read_subnode(panel->dev, "panel-timing");
521 	}
522 
523 	if (!ofnode_valid(timing)) {
524 		printf("failed to get display timings from DT\n");
525 		return -ENXIO;
526 	}
527 
528 	rockchip_ofnode_get_display_mode(timing, mode, bus_flags);
529 
530 	return 0;
531 }
532 
533 static int display_get_timing(struct display_state *state)
534 {
535 	struct connector_state *conn_state = &state->conn_state;
536 	struct drm_display_mode *mode = &conn_state->mode;
537 	const struct drm_display_mode *m;
538 	struct rockchip_panel *panel = conn_state->connector->panel;
539 
540 	if (panel->funcs->get_mode)
541 		return panel->funcs->get_mode(panel, mode);
542 
543 	if (dev_of_valid(panel->dev) &&
544 	    !display_get_timing_from_dts(panel, mode, &conn_state->bus_flags)) {
545 		printf("Using display timing dts\n");
546 		return 0;
547 	}
548 
549 	if (panel->data) {
550 		m = (const struct drm_display_mode *)panel->data;
551 		memcpy(mode, m, sizeof(*m));
552 		printf("Using display timing from compatible panel driver\n");
553 		return 0;
554 	}
555 
556 	return -ENODEV;
557 }
558 
559 static int display_pre_init(void)
560 {
561 	struct display_state *state;
562 	int ret = 0;
563 
564 	list_for_each_entry(state, &rockchip_display_list, head) {
565 		struct connector_state *conn_state = &state->conn_state;
566 		struct crtc_state *crtc_state = &state->crtc_state;
567 		struct rockchip_crtc *crtc = crtc_state->crtc;
568 
569 		ret = rockchip_connector_pre_init(state);
570 		if (ret)
571 			printf("pre init conn error\n");
572 
573 		crtc->vps[crtc_state->crtc_id].output_type = conn_state->type;
574 	}
575 	return ret;
576 }
577 
578 static int display_use_force_mode(struct display_state *state)
579 {
580 	struct connector_state *conn_state = &state->conn_state;
581 	struct drm_display_mode *mode = &conn_state->mode;
582 
583 	conn_state->bpc = 8;
584 	memcpy(mode, &state->force_mode, sizeof(struct drm_display_mode));
585 	conn_state->bus_format = state->force_bus_format;
586 
587 	return 0;
588 }
589 
590 static int display_get_edid_mode(struct display_state *state)
591 {
592 	int ret = 0;
593 	struct connector_state *conn_state = &state->conn_state;
594 	struct drm_display_mode *mode = &conn_state->mode;
595 	int bpc;
596 
597 	ret = edid_get_drm_mode(conn_state->edid, sizeof(conn_state->edid), mode, &bpc);
598 	if (!ret) {
599 		conn_state->bpc = bpc;
600 		edid_print_info((void *)&conn_state->edid);
601 	} else {
602 		conn_state->bpc = 8;
603 		mode->clock = 74250;
604 		mode->flags = 0x5;
605 		mode->hdisplay = 1280;
606 		mode->hsync_start = 1390;
607 		mode->hsync_end = 1430;
608 		mode->htotal = 1650;
609 		mode->hskew = 0;
610 		mode->vdisplay = 720;
611 		mode->vsync_start = 725;
612 		mode->vsync_end = 730;
613 		mode->vtotal = 750;
614 		mode->vrefresh = 60;
615 		mode->picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9;
616 		mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
617 
618 		printf("error: %s get mode from edid failed, use 720p60 as default mode\n",
619 		       state->conn_state.connector->dev->name);
620 	}
621 
622 	return ret;
623 }
624 
625 static int display_mode_valid(struct display_state *state)
626 {
627 	struct connector_state *conn_state = &state->conn_state;
628 	struct rockchip_connector *conn = conn_state->connector;
629 	const struct rockchip_connector_funcs *conn_funcs = conn->funcs;
630 	struct crtc_state *crtc_state = &state->crtc_state;
631 	const struct rockchip_crtc *crtc = crtc_state->crtc;
632 	const struct rockchip_crtc_funcs *crtc_funcs = crtc->funcs;
633 	int ret;
634 
635 	if (conn_funcs->mode_valid && state->enabled_at_spl == false) {
636 		ret = conn_funcs->mode_valid(conn, state);
637 		if (ret)
638 			return ret;
639 	}
640 
641 	if (crtc_funcs->mode_valid) {
642 		ret = crtc_funcs->mode_valid(state);
643 		if (ret)
644 			return ret;
645 	}
646 
647 	return 0;
648 }
649 
650 static int display_mode_fixup(struct display_state *state)
651 {
652 	struct crtc_state *crtc_state = &state->crtc_state;
653 	const struct rockchip_crtc *crtc = crtc_state->crtc;
654 	const struct rockchip_crtc_funcs *crtc_funcs = crtc->funcs;
655 	int ret;
656 
657 	if (crtc_funcs->mode_fixup) {
658 		ret = crtc_funcs->mode_fixup(state);
659 		if (ret)
660 			return ret;
661 	}
662 
663 	return 0;
664 }
665 
666 static int display_init(struct display_state *state)
667 {
668 	struct connector_state *conn_state = &state->conn_state;
669 	struct rockchip_connector *conn = conn_state->connector;
670 	struct crtc_state *crtc_state = &state->crtc_state;
671 	struct rockchip_crtc *crtc = crtc_state->crtc;
672 	const struct rockchip_crtc_funcs *crtc_funcs = crtc->funcs;
673 	struct drm_display_mode *mode = &conn_state->mode;
674 	const char *compatible;
675 	int ret = 0;
676 	static bool __print_once = false;
677 #ifdef CONFIG_SPL_BUILD
678 	struct spl_display_info *spl_disp_info = (struct spl_display_info *)CONFIG_SPL_VIDEO_BUF;
679 #endif
680 	if (!__print_once) {
681 		__print_once = true;
682 		printf("Rockchip UBOOT DRM driver version: %s\n", DRIVER_VERSION);
683 	}
684 
685 	if (state->is_init)
686 		return 0;
687 
688 	if (!crtc_funcs) {
689 		printf("failed to find crtc functions\n");
690 		return -ENXIO;
691 	}
692 
693 #ifdef CONFIG_SPL_BUILD
694 	if (state->conn_state.type == DRM_MODE_CONNECTOR_HDMIA)
695 		state->enabled_at_spl = spl_disp_info->enabled == 1 ? true : false;
696 	if (state->enabled_at_spl)
697 		printf("HDMI enabled at SPL\n");
698 #endif
699 	if (crtc_state->crtc->active && !crtc_state->ports_node &&
700 	    memcmp(&crtc_state->crtc->active_mode, &conn_state->mode,
701 		   sizeof(struct drm_display_mode))) {
702 		printf("%s has been used for output type: %d, mode: %dx%dp%d\n",
703 			crtc_state->dev->name,
704 			crtc_state->crtc->active_mode.type,
705 			crtc_state->crtc->active_mode.hdisplay,
706 			crtc_state->crtc->active_mode.vdisplay,
707 			crtc_state->crtc->active_mode.vrefresh);
708 		return -ENODEV;
709 	}
710 
711 	if (crtc_funcs->preinit) {
712 		ret = crtc_funcs->preinit(state);
713 		if (ret)
714 			return ret;
715 	}
716 
717 	if (state->enabled_at_spl == false) {
718 		ret = rockchip_connector_init(state);
719 		if (ret)
720 			goto deinit;
721 	}
722 
723 	/*
724 	 * support hotplug, but not connect;
725 	 */
726 #ifdef CONFIG_DRM_ROCKCHIP_TVE
727 	if (crtc->hdmi_hpd && conn_state->type == DRM_MODE_CONNECTOR_TV) {
728 		printf("hdmi plugin ,skip tve\n");
729 		goto deinit;
730 	}
731 #elif defined(CONFIG_DRM_ROCKCHIP_RK1000)
732 	if (crtc->hdmi_hpd && conn_state->type == DRM_MODE_CONNECTOR_LVDS) {
733 		printf("hdmi plugin ,skip tve\n");
734 		goto deinit;
735 	}
736 #endif
737 
738 	ret = rockchip_connector_detect(state);
739 #if defined(CONFIG_DRM_ROCKCHIP_TVE) || defined(CONFIG_DRM_ROCKCHIP_RK1000)
740 	if (conn_state->type == DRM_MODE_CONNECTOR_HDMIA)
741 		crtc->hdmi_hpd = ret;
742 	if (state->enabled_at_spl)
743 		crtc->hdmi_hpd = true;
744 #endif
745 	if (!ret && !state->force_output)
746 		goto deinit;
747 
748 	ret = 0;
749 	if (state->enabled_at_spl == true) {
750 #ifdef CONFIG_SPL_BUILD
751 		struct drm_display_mode *mode = &conn_state->mode;
752 
753 		memcpy(mode, &spl_disp_info->mode,  sizeof(*mode));
754 		conn_state->bus_format = spl_disp_info->bus_format;
755 
756 		printf("%s get display mode from spl:%dx%d, bus format:0x%x\n",
757 			conn->dev->name, mode->hdisplay, mode->vdisplay, conn_state->bus_format);
758 #endif
759 	} else if (conn->panel) {
760 		ret = display_get_timing(state);
761 		if (!ret)
762 			conn_state->bpc = conn->panel->bpc;
763 #if defined(CONFIG_I2C_EDID)
764 		if (ret < 0 && conn->funcs->get_edid) {
765 			rockchip_panel_prepare(conn->panel);
766 			ret = conn->funcs->get_edid(conn, state);
767 			if (!ret)
768 				display_get_edid_mode(state);
769 		}
770 #endif
771 	} else if (conn->bridge) {
772 		ret = video_bridge_read_edid(conn->bridge->dev,
773 					     conn_state->edid, EDID_SIZE);
774 		if (ret > 0) {
775 #if defined(CONFIG_I2C_EDID)
776 			ret = display_get_edid_mode(state);
777 #endif
778 		} else {
779 			ret = video_bridge_get_timing(conn->bridge->dev);
780 		}
781 	} else if (conn->funcs->get_timing) {
782 		ret = conn->funcs->get_timing(conn, state);
783 	} else if (conn->funcs->get_edid) {
784 		ret = conn->funcs->get_edid(conn, state);
785 #if defined(CONFIG_I2C_EDID)
786 		if (!ret)
787 			display_get_edid_mode(state);
788 #endif
789 	}
790 
791 	if (!ret && conn_state->secondary) {
792 		struct rockchip_connector *connector = conn_state->secondary;
793 
794 		if (connector->panel) {
795 			if (connector->panel->funcs->get_mode) {
796 				struct drm_display_mode *_mode = drm_mode_create();
797 
798 				ret = connector->panel->funcs->get_mode(connector->panel, _mode);
799 				if (!ret && !drm_mode_equal(_mode, mode))
800 					ret = -EINVAL;
801 
802 				drm_mode_destroy(_mode);
803 			}
804 		}
805 	}
806 
807 	if (ret && !state->force_output)
808 		goto deinit;
809 	if (state->force_output)
810 		display_use_force_mode(state);
811 
812 	if (display_mode_valid(state))
813 		goto deinit;
814 
815 	/* rk356x series drive mipi pixdata on posedge */
816 	compatible = dev_read_string(conn->dev, "compatible");
817 	if (compatible && !strcmp(compatible, "rockchip,rk3568-mipi-dsi")) {
818 		conn_state->bus_flags &= ~DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE;
819 		conn_state->bus_flags |= DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE;
820 	}
821 
822 	if (display_mode_fixup(state))
823 		goto deinit;
824 
825 	if (conn->bridge)
826 		rockchip_bridge_mode_set(conn->bridge, &conn_state->mode);
827 
828 	printf("%s: %s detailed mode clock %u kHz, flags[%x]\n"
829 	       "    H: %04d %04d %04d %04d\n"
830 	       "    V: %04d %04d %04d %04d\n"
831 	       "bus_format: %x\n",
832 	       conn->dev->name,
833 	       state->force_output ? "use force output" : "",
834 	       mode->clock, mode->flags,
835 	       mode->hdisplay, mode->hsync_start,
836 	       mode->hsync_end, mode->htotal,
837 	       mode->vdisplay, mode->vsync_start,
838 	       mode->vsync_end, mode->vtotal,
839 	       conn_state->bus_format);
840 
841 	if (crtc_funcs->init && state->enabled_at_spl == false) {
842 		ret = crtc_funcs->init(state);
843 		if (ret)
844 			goto deinit;
845 	}
846 	state->is_init = 1;
847 
848 	crtc_state->crtc->active = true;
849 	memcpy(&crtc_state->crtc->active_mode,
850 	       &conn_state->mode, sizeof(struct drm_display_mode));
851 
852 	return 0;
853 
854 deinit:
855 	rockchip_connector_deinit(state);
856 	return ret;
857 }
858 
859 int display_send_mcu_cmd(struct display_state *state, u32 type, u32 val)
860 {
861 	struct crtc_state *crtc_state = &state->crtc_state;
862 	const struct rockchip_crtc *crtc = crtc_state->crtc;
863 	const struct rockchip_crtc_funcs *crtc_funcs = crtc->funcs;
864 	int ret;
865 
866 	if (!state->is_init)
867 		return -EINVAL;
868 
869 	if (crtc_funcs->send_mcu_cmd) {
870 		ret = crtc_funcs->send_mcu_cmd(state, type, val);
871 		if (ret)
872 			return ret;
873 	}
874 
875 	return 0;
876 }
877 
878 static int display_set_plane(struct display_state *state)
879 {
880 	struct crtc_state *crtc_state = &state->crtc_state;
881 	const struct rockchip_crtc *crtc = crtc_state->crtc;
882 	const struct rockchip_crtc_funcs *crtc_funcs = crtc->funcs;
883 	int ret;
884 
885 	if (!state->is_init)
886 		return -EINVAL;
887 
888 	if (crtc_funcs->set_plane) {
889 		ret = crtc_funcs->set_plane(state);
890 		if (ret)
891 			return ret;
892 	}
893 
894 	return 0;
895 }
896 
897 static int display_enable(struct display_state *state)
898 {
899 	struct crtc_state *crtc_state = &state->crtc_state;
900 	const struct rockchip_crtc *crtc = crtc_state->crtc;
901 	const struct rockchip_crtc_funcs *crtc_funcs = crtc->funcs;
902 
903 	if (!state->is_init)
904 		return -EINVAL;
905 
906 	if (state->is_enable)
907 		return 0;
908 
909 	if (crtc_funcs->prepare)
910 		crtc_funcs->prepare(state);
911 
912 	if (state->enabled_at_spl == false)
913 		rockchip_connector_pre_enable(state);
914 
915 	if (crtc_funcs->enable)
916 		crtc_funcs->enable(state);
917 
918 	if (state->enabled_at_spl == false)
919 		rockchip_connector_enable(state);
920 
921 #ifdef CONFIG_DRM_ROCKCHIP_RK628
922 	/*
923 	 * trigger .probe helper of U_BOOT_DRIVER(rk628) in ./rk628/rk628.c
924 	 */
925 	struct udevice * dev;
926 	int phandle, ret;
927 
928 	phandle = ofnode_read_u32_default(state->node, "bridge", -1);
929 	if (phandle < 0)
930 		printf("%s failed to find bridge phandle\n", ofnode_get_name(state->node));
931 
932 	ret = uclass_get_device_by_phandle_id(UCLASS_I2C_GENERIC, phandle, &dev);
933 	if (ret && ret != -ENOENT)
934 		printf("%s:%d failed to get rk628 device ret:%d\n", __func__, __LINE__, ret);
935 
936 #endif
937 
938 	if (crtc_state->soft_te)
939 		crtc_funcs->apply_soft_te(state);
940 
941 	state->is_enable = true;
942 
943 	return 0;
944 }
945 
946 static int display_disable(struct display_state *state)
947 {
948 	struct crtc_state *crtc_state = &state->crtc_state;
949 	const struct rockchip_crtc *crtc = crtc_state->crtc;
950 	const struct rockchip_crtc_funcs *crtc_funcs = crtc->funcs;
951 
952 	if (!state->is_init)
953 		return 0;
954 
955 	if (!state->is_enable)
956 		return 0;
957 
958 	rockchip_connector_disable(state);
959 
960 	if (crtc_funcs->disable)
961 		crtc_funcs->disable(state);
962 
963 	rockchip_connector_post_disable(state);
964 
965 	state->is_enable = 0;
966 	state->is_init = 0;
967 
968 	return 0;
969 }
970 
971 static int display_check(struct display_state *state)
972 {
973 	struct connector_state *conn_state = &state->conn_state;
974 	struct rockchip_connector *conn = conn_state->connector;
975 	const struct rockchip_connector_funcs *conn_funcs = conn->funcs;
976 	struct crtc_state *crtc_state = &state->crtc_state;
977 	const struct rockchip_crtc *crtc = crtc_state->crtc;
978 	const struct rockchip_crtc_funcs *crtc_funcs = crtc->funcs;
979 	int ret;
980 
981 	if (!state->is_init)
982 		return 0;
983 
984 	if (conn_funcs->check) {
985 		ret = conn_funcs->check(conn, state);
986 		if (ret)
987 			goto check_fail;
988 	}
989 
990 	if (crtc_funcs->check) {
991 		ret = crtc_funcs->check(state);
992 		if (ret)
993 			goto check_fail;
994 	}
995 
996 	if (crtc_funcs->plane_check) {
997 		ret = crtc_funcs->plane_check(state);
998 		if (ret)
999 			goto check_fail;
1000 	}
1001 
1002 	return 0;
1003 
1004 check_fail:
1005 	state->is_init = false;
1006 	return ret;
1007 }
1008 
1009 static int display_logo(struct display_state *state)
1010 {
1011 	struct crtc_state *crtc_state = &state->crtc_state;
1012 	struct connector_state *conn_state = &state->conn_state;
1013 	struct logo_info *logo = &state->logo;
1014 	int hdisplay, vdisplay, ret;
1015 
1016 	ret = display_init(state);
1017 	if (!state->is_init || ret)
1018 		return -ENODEV;
1019 
1020 	switch (logo->bpp) {
1021 	case 16:
1022 		crtc_state->format = ROCKCHIP_FMT_RGB565;
1023 		break;
1024 	case 24:
1025 		crtc_state->format = ROCKCHIP_FMT_RGB888;
1026 		break;
1027 	case 32:
1028 		crtc_state->format = ROCKCHIP_FMT_ARGB8888;
1029 		break;
1030 	default:
1031 		printf("can't support bmp bits[%d]\n", logo->bpp);
1032 		return -EINVAL;
1033 	}
1034 	hdisplay = conn_state->mode.crtc_hdisplay;
1035 	vdisplay = conn_state->mode.vdisplay;
1036 	crtc_state->src_rect.w = logo->width;
1037 	crtc_state->src_rect.h = logo->height;
1038 	crtc_state->src_rect.x = 0;
1039 	crtc_state->src_rect.y = 0;
1040 	crtc_state->ymirror = logo->ymirror;
1041 	crtc_state->rb_swap = 0;
1042 
1043 	crtc_state->dma_addr = (u32)(unsigned long)logo->mem + logo->offset;
1044 	crtc_state->xvir = ALIGN(crtc_state->src_rect.w * logo->bpp, 32) >> 5;
1045 
1046 	if (state->logo_mode == ROCKCHIP_DISPLAY_FULLSCREEN) {
1047 		crtc_state->crtc_rect.x = 0;
1048 		crtc_state->crtc_rect.y = 0;
1049 		crtc_state->crtc_rect.w = hdisplay;
1050 		crtc_state->crtc_rect.h = vdisplay;
1051 	} else {
1052 		if (crtc_state->src_rect.w >= hdisplay) {
1053 			crtc_state->crtc_rect.x = 0;
1054 			crtc_state->crtc_rect.w = hdisplay;
1055 		} else {
1056 			crtc_state->crtc_rect.x = (hdisplay - crtc_state->src_rect.w) / 2;
1057 			crtc_state->crtc_rect.w = crtc_state->src_rect.w;
1058 		}
1059 
1060 		if (crtc_state->src_rect.h >= vdisplay) {
1061 			crtc_state->crtc_rect.y = 0;
1062 			crtc_state->crtc_rect.h = vdisplay;
1063 		} else {
1064 			crtc_state->crtc_rect.y = (vdisplay - crtc_state->src_rect.h) / 2;
1065 			crtc_state->crtc_rect.h = crtc_state->src_rect.h;
1066 		}
1067 	}
1068 
1069 	display_check(state);
1070 	ret = display_set_plane(state);
1071 	if (ret)
1072 		return ret;
1073 	display_enable(state);
1074 
1075 	return 0;
1076 }
1077 
1078 static int get_crtc_id(ofnode connect, bool is_ports_node)
1079 {
1080 	struct device_node *port_node;
1081 	struct device_node *remote;
1082 	int phandle;
1083 	int val;
1084 
1085 	if (is_ports_node) {
1086 		port_node = of_get_parent(connect.np);
1087 		if (!port_node)
1088 			goto err;
1089 
1090 		val = ofnode_read_u32_default(np_to_ofnode(port_node), "reg", -1);
1091 		if (val < 0)
1092 			goto err;
1093 	} else {
1094 		phandle = ofnode_read_u32_default(connect, "remote-endpoint", -1);
1095 		if (phandle < 0)
1096 			goto err;
1097 
1098 		remote = of_find_node_by_phandle(phandle);
1099 		if (!remote)
1100 			goto err;
1101 
1102 		val = ofnode_read_u32_default(np_to_ofnode(remote), "reg", -1);
1103 		if (val < 0)
1104 			goto err;
1105 	}
1106 
1107 	return val;
1108 err:
1109 	printf("Can't get crtc id, default set to id = 0\n");
1110 	return 0;
1111 }
1112 
1113 static int get_crtc_mcu_mode(struct crtc_state *crtc_state, struct device_node *port_node,
1114 			     bool is_ports_node)
1115 {
1116 	ofnode mcu_node, vp_node;
1117 	int total_pixel, cs_pst, cs_pend, rw_pst, rw_pend;
1118 
1119 	if (is_ports_node) {
1120 		vp_node = np_to_ofnode(port_node);
1121 		mcu_node = ofnode_find_subnode(vp_node, "mcu-timing");
1122 		if (!ofnode_valid(mcu_node))
1123 			return -ENODEV;
1124 	} else {
1125 		mcu_node = dev_read_subnode(crtc_state->dev, "mcu-timing");
1126 		if (!ofnode_valid(mcu_node))
1127 			return -ENODEV;
1128 	}
1129 
1130 #define FDT_GET_MCU_INT(val, name) \
1131 	do { \
1132 		val = ofnode_read_s32_default(mcu_node, name, -1); \
1133 		if (val < 0) { \
1134 			printf("Can't get %s\n", name); \
1135 			return -ENXIO; \
1136 		} \
1137 	} while (0)
1138 
1139 	FDT_GET_MCU_INT(total_pixel, "mcu-pix-total");
1140 	FDT_GET_MCU_INT(cs_pst, "mcu-cs-pst");
1141 	FDT_GET_MCU_INT(cs_pend, "mcu-cs-pend");
1142 	FDT_GET_MCU_INT(rw_pst, "mcu-rw-pst");
1143 	FDT_GET_MCU_INT(rw_pend, "mcu-rw-pend");
1144 
1145 	crtc_state->mcu_timing.mcu_pix_total = total_pixel;
1146 	crtc_state->mcu_timing.mcu_cs_pst = cs_pst;
1147 	crtc_state->mcu_timing.mcu_cs_pend = cs_pend;
1148 	crtc_state->mcu_timing.mcu_rw_pst = rw_pst;
1149 	crtc_state->mcu_timing.mcu_rw_pend = rw_pend;
1150 
1151 	return 0;
1152 }
1153 
1154 struct rockchip_logo_cache *find_or_alloc_logo_cache(const char *bmp, int rotate)
1155 {
1156 	struct rockchip_logo_cache *tmp, *logo_cache = NULL;
1157 
1158 	list_for_each_entry(tmp, &logo_cache_list, head) {
1159 		if ((!strcmp(tmp->name, bmp) && rotate == tmp->logo_rotate) ||
1160 		    (soc_is_rk3566() && tmp->logo_rotate)) {
1161 			logo_cache = tmp;
1162 			break;
1163 		}
1164 	}
1165 
1166 	if (!logo_cache) {
1167 		logo_cache = malloc(sizeof(*logo_cache));
1168 		if (!logo_cache) {
1169 			printf("failed to alloc memory for logo cache\n");
1170 			return NULL;
1171 		}
1172 		memset(logo_cache, 0, sizeof(*logo_cache));
1173 		strcpy(logo_cache->name, bmp);
1174 		INIT_LIST_HEAD(&logo_cache->head);
1175 		list_add_tail(&logo_cache->head, &logo_cache_list);
1176 	}
1177 
1178 	return logo_cache;
1179 }
1180 
1181 /* Note: used only for rkfb kernel driver */
1182 static int load_kernel_bmp_logo(struct logo_info *logo, const char *bmp_name)
1183 {
1184 #ifdef CONFIG_ROCKCHIP_RESOURCE_IMAGE
1185 	void *dst = NULL;
1186 	int len, size;
1187 	struct bmp_header *header;
1188 
1189 	if (!logo || !bmp_name)
1190 		return -EINVAL;
1191 
1192 	header = malloc(RK_BLK_SIZE);
1193 	if (!header)
1194 		return -ENOMEM;
1195 
1196 	len = rockchip_read_resource_file(header, bmp_name, 0, RK_BLK_SIZE);
1197 	if (len != RK_BLK_SIZE) {
1198 		free(header);
1199 		return -EINVAL;
1200 	}
1201 	size = get_unaligned_le32(&header->file_size);
1202 	dst = (void *)(memory_start + MEMORY_POOL_SIZE / 2);
1203 	len = rockchip_read_resource_file(dst, bmp_name, 0, size);
1204 	if (len != size) {
1205 		printf("failed to load bmp %s\n", bmp_name);
1206 		free(header);
1207 		return -ENOENT;
1208 	}
1209 
1210 	logo->mem = dst;
1211 #endif
1212 
1213 	return 0;
1214 }
1215 
1216 #ifdef BMP_DECODEER_LEGACY
1217 static int load_bmp_logo_legacy(struct logo_info *logo, const char *bmp_name)
1218 {
1219 #ifdef CONFIG_ROCKCHIP_RESOURCE_IMAGE
1220 	struct rockchip_logo_cache *logo_cache;
1221 	struct bmp_header *header;
1222 	void *dst = NULL, *pdst;
1223 	int size, len;
1224 	int ret = 0;
1225 	int reserved = 0;
1226 	int dst_size;
1227 
1228 	if (!logo || !bmp_name)
1229 		return -EINVAL;
1230 	logo_cache = find_or_alloc_logo_cache(bmp_name, logo->rotate);
1231 	if (!logo_cache)
1232 		return -ENOMEM;
1233 
1234 	if (logo_cache->logo.mem) {
1235 		memcpy(logo, &logo_cache->logo, sizeof(*logo));
1236 		return 0;
1237 	}
1238 
1239 	header = malloc(RK_BLK_SIZE);
1240 	if (!header)
1241 		return -ENOMEM;
1242 
1243 	len = rockchip_read_resource_file(header, bmp_name, 0, RK_BLK_SIZE);
1244 	if (len != RK_BLK_SIZE) {
1245 		ret = -EINVAL;
1246 		goto free_header;
1247 	}
1248 
1249 	logo->bpp = get_unaligned_le16(&header->bit_count);
1250 	logo->width = get_unaligned_le32(&header->width);
1251 	logo->height = get_unaligned_le32(&header->height);
1252 	dst_size = logo->width * logo->height * logo->bpp >> 3;
1253 	reserved = get_unaligned_le32(&header->reserved);
1254 	if (logo->height < 0)
1255 	    logo->height = -logo->height;
1256 	size = get_unaligned_le32(&header->file_size);
1257 	if (!can_direct_logo(logo->bpp)) {
1258 		if (size > MEMORY_POOL_SIZE) {
1259 			printf("failed to use boot buf as temp bmp buffer\n");
1260 			ret = -ENOMEM;
1261 			goto free_header;
1262 		}
1263 		pdst = get_display_buffer(size);
1264 
1265 	} else {
1266 		pdst = get_display_buffer(size);
1267 		dst = pdst;
1268 	}
1269 
1270 	len = rockchip_read_resource_file(pdst, bmp_name, 0, size);
1271 	if (len != size) {
1272 		printf("failed to load bmp %s\n", bmp_name);
1273 		ret = -ENOENT;
1274 		goto free_header;
1275 	}
1276 
1277 	if (!can_direct_logo(logo->bpp)) {
1278 		/*
1279 		 * TODO: force use 16bpp if bpp less than 16;
1280 		 */
1281 		logo->bpp = (logo->bpp <= 16) ? 16 : logo->bpp;
1282 		dst_size = logo->width * logo->height * logo->bpp >> 3;
1283 		dst = get_display_buffer(dst_size);
1284 		if (!dst) {
1285 			ret = -ENOMEM;
1286 			goto free_header;
1287 		}
1288 		if (bmpdecoder(pdst, dst, logo->bpp)) {
1289 			printf("failed to decode bmp %s\n", bmp_name);
1290 			ret = -EINVAL;
1291 			goto free_header;
1292 		}
1293 
1294 		logo->offset = 0;
1295 		logo->ymirror = 0;
1296 	} else {
1297 		logo->offset = get_unaligned_le32(&header->data_offset);
1298 		if (reserved == BMP_PROCESSED_FLAG)
1299 			logo->ymirror = 0;
1300 		else
1301 			logo->ymirror = 1;
1302 	}
1303 	logo->mem = dst;
1304 
1305 	memcpy(&logo_cache->logo, logo, sizeof(*logo));
1306 
1307 	flush_dcache_range((ulong)dst, ALIGN((ulong)dst + dst_size, CONFIG_SYS_CACHELINE_SIZE));
1308 
1309 free_header:
1310 
1311 	free(header);
1312 
1313 	return ret;
1314 #else
1315 	return -EINVAL;
1316 #endif
1317 }
1318 #endif
1319 
1320 static void *bitmap_create(int width, int height, unsigned int state)
1321 {
1322 	/* Ensure a stupidly large bitmap is not created */
1323 	if (width > 4096 || height > 4096)
1324 		return NULL;
1325 
1326 	return calloc(width * height, BYTES_PER_PIXEL);
1327 }
1328 
1329 static unsigned char *bitmap_get_buffer(void *bitmap)
1330 {
1331 	return bitmap;
1332 }
1333 
1334 static void bitmap_destroy(void *bitmap)
1335 {
1336 	free(bitmap);
1337 }
1338 
1339 static void bmp_copy(void *dst, bmp_image *bmp)
1340 {
1341 	u16 row, col;
1342 	u8 *image;
1343 	u8 *pdst = (u8 *)dst;
1344 
1345 	image = (u8 *)bmp->bitmap;
1346 	for (row = 0; row != bmp->height; row++) {
1347 		for (col = 0; col != bmp->width; col++) {
1348 			size_t z = (row * bmp->width + col) * BYTES_PER_PIXEL;
1349 
1350 			*pdst++ = image[z + 2];
1351 			*pdst++ = image[z + 1];
1352 			*pdst++ = image[z + 0];
1353 			*pdst++ = image[z + 3];
1354 		}
1355 	}
1356 }
1357 
1358 static void *rockchip_logo_rotate(struct logo_info *logo, void *src)
1359 {
1360 	void *dst_rotate;
1361 	int width = logo->width;
1362 	int height = logo->height;
1363 	int width_rotate = logo->height & 0x3 ? (logo->height & ~0x3) + 4 : logo->height;
1364 	int height_rotate = logo->width;
1365 	int dst_size = width * height * logo->bpp >> 3;
1366 	int dst_size_rotate = width_rotate * height_rotate * logo->bpp >> 3;
1367 	int bytes_per_pixel = logo->bpp >> 3;
1368 	int padded_width;
1369 	int i, j;
1370 	char *img_data;
1371 
1372 	if (!(logo->rotate == 90 || logo->rotate == 180 || logo->rotate == 270)) {
1373 		printf("Unsupported rotation angle\n");
1374 		return NULL;
1375 	}
1376 
1377 	img_data = (char *)malloc(dst_size);
1378 	if (!img_data) {
1379 		printf("failed to alloc memory for image data\n");
1380 		return NULL;
1381 	}
1382 	memcpy(img_data, src, dst_size);
1383 
1384 	dst_rotate = get_display_buffer(dst_size_rotate);
1385 	if (!dst_rotate)
1386 		return NULL;
1387 	memset(dst_rotate, 0, dst_size_rotate);
1388 
1389 	switch (logo->rotate) {
1390 	case 90:
1391 		logo->width = width_rotate;
1392 		logo->height = height_rotate;
1393 		padded_width = height & 0x3 ? (height & ~0x3) + 4 : height;
1394 		for (i = 0; i < height; i++) {
1395 			for (j = 0; j < width; j++) {
1396 				memcpy(dst_rotate + (j * padded_width * bytes_per_pixel) +
1397 				       (height - i - 1) * bytes_per_pixel,
1398 				       img_data + i * width * bytes_per_pixel + j * bytes_per_pixel,
1399 				       bytes_per_pixel);
1400 			}
1401 		}
1402 		break;
1403 	case 180:
1404 		for (i = 0; i < height; i++) {
1405 			for (j = 0; j < width; j++) {
1406 				memcpy(dst_rotate + (height - i - 1) * width * bytes_per_pixel +
1407 				       (width - j - 1) * bytes_per_pixel,
1408 				       img_data + i * width * bytes_per_pixel + j * bytes_per_pixel,
1409 				       bytes_per_pixel);
1410 			}
1411 		}
1412 		break;
1413 	case 270:
1414 		logo->width = width_rotate;
1415 		logo->height = height_rotate;
1416 		padded_width = height & 0x3 ? (height & ~0x3) + 4 : height;
1417 		for (i = 0; i < height; i++) {
1418 			for (j = 0; j < width; j++) {
1419 				memcpy(dst_rotate + (width - j - 1) * padded_width * bytes_per_pixel +
1420 				       i * bytes_per_pixel,
1421 				       img_data + i * width * bytes_per_pixel + j * bytes_per_pixel,
1422 				       bytes_per_pixel);
1423 			}
1424 		}
1425 		break;
1426 	default:
1427 		break;
1428 	}
1429 
1430 	free(img_data);
1431 
1432 	return dst_rotate;
1433 }
1434 
1435 static int load_bmp_logo(struct logo_info *logo, const char *bmp_name)
1436 {
1437 #ifdef CONFIG_ROCKCHIP_RESOURCE_IMAGE
1438 	struct rockchip_logo_cache *logo_cache;
1439 	bmp_bitmap_callback_vt bitmap_callbacks = {
1440 		bitmap_create,
1441 		bitmap_destroy,
1442 		bitmap_get_buffer,
1443 	};
1444 	bmp_result code;
1445 	bmp_image bmp;
1446 	void *bmp_data;
1447 	void *dst = NULL;
1448 	void *dst_rotate = NULL;
1449 	int len, dst_size;
1450 	int ret = 0;
1451 
1452 	if (!logo || !bmp_name)
1453 		return -EINVAL;
1454 
1455 	logo_cache = find_or_alloc_logo_cache(bmp_name, logo->rotate);
1456 	if (!logo_cache)
1457 		return -ENOMEM;
1458 
1459 	if (logo_cache->logo.mem) {
1460 		memcpy(logo, &logo_cache->logo, sizeof(*logo));
1461 		return 0;
1462 	}
1463 
1464 	bmp_data = malloc(MAX_IMAGE_BYTES);
1465 	if (!bmp_data) {
1466 		printf("failed to alloc bmp data\n");
1467 		return -ENOMEM;
1468 	}
1469 
1470 	bmp_create(&bmp, &bitmap_callbacks);
1471 
1472 	len = rockchip_read_resource_file(bmp_data, bmp_name, 0, MAX_IMAGE_BYTES);
1473 	if (len < 0) {
1474 		ret = -EINVAL;
1475 		goto free_bmp_data;
1476 	}
1477 
1478 	/* analyse the BMP */
1479 	code = bmp_analyse(&bmp, len, bmp_data);
1480 	if (code != BMP_OK) {
1481 		printf("failed to parse bmp:%s header\n", bmp_name);
1482 		ret = -EINVAL;
1483 		goto free_bmp_data;
1484 	}
1485 
1486 	if (bmp.buffer_size > MAX_IMAGE_BYTES) {
1487 		printf("bmp[%s] data size[%dKB] is over the limitation MAX_IMAGE_BYTES[%dKB]\n",
1488 			bmp_name, bmp.buffer_size / 1024, MAX_IMAGE_BYTES / 1024);
1489 		ret = -EINVAL;
1490 		goto free_bmp_data;
1491 	}
1492 
1493 	/* fix bpp to 32 */
1494 	logo->bpp = 32;
1495 	logo->offset = 0;
1496 	logo->ymirror = 0;
1497 	logo->width = get_unaligned_le32(&bmp.width);
1498 	logo->height = get_unaligned_le32(&bmp.height);
1499 	dst_size = logo->width * logo->height * logo->bpp >> 3;
1500 	/* decode the image to RGBA8888 format */
1501 	code = bmp_decode(&bmp);
1502 	if (code != BMP_OK) {
1503 		/* allow partially decoded images */
1504 		if (code != BMP_INSUFFICIENT_DATA && code != BMP_DATA_ERROR) {
1505 			printf("failed to allocate the buffer of bmp:%s\n", bmp_name);
1506 			ret = -EINVAL;
1507 			goto free_bmp_data;
1508 		}
1509 	}
1510 
1511 	dst = get_display_buffer(dst_size);
1512 	if (!dst) {
1513 		ret = -ENOMEM;
1514 		goto free_bmp_data;
1515 	}
1516 	bmp_copy(dst, &bmp);
1517 
1518 	if (logo->rotate) {
1519 		dst_rotate = rockchip_logo_rotate(logo, dst);
1520 		if (dst_rotate) {
1521 			dst = dst_rotate;
1522 			dst_size = logo->width * logo->height * logo->bpp >> 3;
1523 		}
1524 		printf("logo ratate %d\n", logo->rotate);
1525 	}
1526 	logo->mem = dst;
1527 
1528 	memcpy(&logo_cache->logo, logo, sizeof(*logo));
1529 	logo_cache->logo_rotate = logo->rotate;
1530 
1531 	flush_dcache_range((ulong)dst, ALIGN((ulong)dst + dst_size, CONFIG_SYS_CACHELINE_SIZE));
1532 free_bmp_data:
1533 	/* clean up */
1534 	bmp_finalise(&bmp);
1535 	free(bmp_data);
1536 
1537 	return ret;
1538 #else
1539 	return -EINVAL;
1540 #endif
1541 }
1542 
1543 void rockchip_show_fbbase(ulong fbbase)
1544 {
1545 	struct display_state *s;
1546 
1547 	list_for_each_entry(s, &rockchip_display_list, head) {
1548 		s->logo.mode = ROCKCHIP_DISPLAY_FULLSCREEN;
1549 		s->logo.mem = (char *)fbbase;
1550 		s->logo.width = DRM_ROCKCHIP_FB_WIDTH;
1551 		s->logo.height = DRM_ROCKCHIP_FB_HEIGHT;
1552 		s->logo.bpp = 32;
1553 		s->logo.ymirror = 0;
1554 
1555 		display_logo(s);
1556 	}
1557 }
1558 
1559 int rockchip_show_bmp(const char *bmp)
1560 {
1561 	struct display_state *s;
1562 	int ret = 0;
1563 
1564 	if (!bmp) {
1565 		list_for_each_entry(s, &rockchip_display_list, head)
1566 			display_disable(s);
1567 		return -ENOENT;
1568 	}
1569 
1570 	list_for_each_entry(s, &rockchip_display_list, head) {
1571 		s->logo.mode = s->charge_logo_mode;
1572 		if (load_bmp_logo(&s->logo, bmp))
1573 			continue;
1574 		ret = display_logo(s);
1575 	}
1576 
1577 	return ret;
1578 }
1579 
1580 int rockchip_show_logo(void)
1581 {
1582 	struct display_state *s;
1583 	struct display_state *ms = NULL;
1584 	int ret = 0;
1585 	int count = 0;
1586 
1587 	list_for_each_entry(s, &rockchip_display_list, head) {
1588 		s->logo.mode = s->logo_mode;
1589 		s->logo.rotate = s->logo_rotate;
1590 		if (load_bmp_logo(&s->logo, s->ulogo_name)) {
1591 			printf("failed to display uboot logo\n");
1592 		} else {
1593 			ret = display_logo(s);
1594 			if (ret == -EAGAIN)
1595 				ms = s;
1596 		}
1597 		/* Load kernel bmp in rockchip_display_fixup() later */
1598 	}
1599 
1600 	/*
1601 	 * For rk3566, the mirror win must be enabled after the related
1602 	 * source win. If error code is EAGAIN, the mirror win may be
1603 	 * first enabled unexpectedly, and we will move the enabling process
1604 	 * as follows.
1605 	 */
1606 	if (ms) {
1607 		while (count < 5) {
1608 			ret = display_logo(ms);
1609 			if (ret != -EAGAIN)
1610 				break;
1611 			mdelay(10);
1612 			count++;
1613 		}
1614 	}
1615 
1616 	return ret;
1617 }
1618 
1619 int rockchip_vop_dump(const char *cmd)
1620 {
1621 	struct display_state *state;
1622 	struct crtc_state *crtc_state;
1623 	struct rockchip_crtc *crtc;
1624 	const struct rockchip_crtc_funcs *crtc_funcs;
1625 	int ret = -EINVAL;
1626 
1627 	list_for_each_entry(state, &rockchip_display_list, head) {
1628 		if (!state->is_init)
1629 			continue;
1630 		crtc_state = &state->crtc_state;
1631 		crtc = crtc_state->crtc;
1632 		crtc_funcs = crtc->funcs;
1633 
1634 		if (!cmd)
1635 			ret = crtc_funcs->active_regs_dump(state);
1636 		else if (!strcmp(cmd, "a") || !strcmp(cmd, "all"))
1637 			ret = crtc_funcs->regs_dump(state);
1638 		if (!ret)
1639 			break;
1640 	}
1641 
1642 	if (ret)
1643 		ret = CMD_RET_USAGE;
1644 
1645 	return ret;
1646 }
1647 
1648 enum {
1649 	PORT_DIR_IN,
1650 	PORT_DIR_OUT,
1651 };
1652 
1653 const struct device_node *rockchip_of_graph_get_port_by_id(ofnode node, int id)
1654 {
1655 	ofnode ports, port;
1656 	u32 reg;
1657 
1658 	ports = ofnode_find_subnode(node, "ports");
1659 	if (!ofnode_valid(ports))
1660 		return NULL;
1661 
1662 	ofnode_for_each_subnode(port, ports) {
1663 		if (ofnode_read_u32(port, "reg", &reg))
1664 			continue;
1665 
1666 		if (reg == id)
1667 			break;
1668 	}
1669 
1670 	if (reg == id)
1671 		return ofnode_to_np(port);
1672 
1673 	return NULL;
1674 }
1675 
1676 static const struct device_node *rockchip_of_graph_get_port_parent(ofnode port)
1677 {
1678 	ofnode parent;
1679 	int is_ports_node;
1680 
1681 	parent = ofnode_get_parent(port);
1682 	is_ports_node = strstr(ofnode_to_np(parent)->full_name, "ports") ? 1 : 0;
1683 	if (is_ports_node)
1684 		parent = ofnode_get_parent(parent);
1685 
1686 	return ofnode_to_np(parent);
1687 }
1688 
1689 const struct device_node *
1690 rockchip_of_graph_get_endpoint_by_regs(ofnode node, int port, int endpoint)
1691 {
1692 	const struct device_node *port_node;
1693 	ofnode ep;
1694 	u32 reg;
1695 
1696 	port_node = rockchip_of_graph_get_port_by_id(node, port);
1697 	if (!port_node)
1698 		return NULL;
1699 
1700 	ofnode_for_each_subnode(ep, np_to_ofnode(port_node)) {
1701 		if (ofnode_read_u32(ep, "reg", &reg))
1702 			break;
1703 		if (reg == endpoint)
1704 			break;
1705 	}
1706 
1707 	if (!ofnode_valid(ep))
1708 		return NULL;
1709 
1710 	return ofnode_to_np(ep);
1711 }
1712 
1713 static const struct device_node *
1714 rockchip_of_graph_get_remote_node(ofnode node, int port, int endpoint)
1715 {
1716 	const struct device_node *ep_node;
1717 	ofnode ep;
1718 	uint phandle;
1719 
1720 	ep_node = rockchip_of_graph_get_endpoint_by_regs(node, port, endpoint);
1721 	if (!ep_node)
1722 		return NULL;
1723 
1724 	if (ofnode_read_u32(np_to_ofnode(ep_node), "remote-endpoint", &phandle))
1725 		return NULL;
1726 
1727 	ep = ofnode_get_by_phandle(phandle);
1728 	if (!ofnode_valid(ep))
1729 		return NULL;
1730 
1731 	return ofnode_to_np(ep);
1732 }
1733 
1734 static int rockchip_of_find_panel(struct udevice *dev, struct rockchip_panel **panel)
1735 {
1736 	const struct device_node *ep_node, *panel_node;
1737 	ofnode panel_ofnode, port;
1738 	struct udevice *panel_dev;
1739 	int ret = 0;
1740 
1741 	*panel = NULL;
1742 	panel_ofnode = dev_read_subnode(dev, "panel");
1743 	if (ofnode_valid(panel_ofnode) && ofnode_is_available(panel_ofnode)) {
1744 		ret = uclass_get_device_by_ofnode(UCLASS_PANEL, panel_ofnode,
1745 						  &panel_dev);
1746 		if (!ret)
1747 			goto found;
1748 	}
1749 
1750 	ep_node = rockchip_of_graph_get_remote_node(dev->node, PORT_DIR_OUT, 0);
1751 	if (!ep_node)
1752 		return -ENODEV;
1753 
1754 	port = ofnode_get_parent(np_to_ofnode(ep_node));
1755 	if (!ofnode_valid(port))
1756 		return -ENODEV;
1757 
1758 	panel_node = rockchip_of_graph_get_port_parent(port);
1759 	if (!panel_node)
1760 		return -ENODEV;
1761 
1762 	ret = uclass_get_device_by_ofnode(UCLASS_PANEL, np_to_ofnode(panel_node), &panel_dev);
1763 	if (!ret)
1764 		goto found;
1765 
1766 	return -ENODEV;
1767 
1768 found:
1769 	*panel = (struct rockchip_panel *)dev_get_driver_data(panel_dev);
1770 	return 0;
1771 }
1772 
1773 static int rockchip_of_find_bridge(struct udevice *dev, struct rockchip_bridge **bridge)
1774 {
1775 	const struct device_node *ep_node, *bridge_node;
1776 	ofnode port;
1777 	struct udevice *bridge_dev;
1778 	int ret = 0;
1779 
1780 	ep_node = rockchip_of_graph_get_remote_node(dev->node, PORT_DIR_OUT, 0);
1781 	if (!ep_node)
1782 		return -ENODEV;
1783 
1784 	port = ofnode_get_parent(np_to_ofnode(ep_node));
1785 	if (!ofnode_valid(port))
1786 		return -ENODEV;
1787 
1788 	bridge_node = rockchip_of_graph_get_port_parent(port);
1789 	if (!bridge_node)
1790 		return -ENODEV;
1791 
1792 	ret = uclass_get_device_by_ofnode(UCLASS_VIDEO_BRIDGE, np_to_ofnode(bridge_node),
1793 					  &bridge_dev);
1794 	if (!ret)
1795 		goto found;
1796 
1797 	return -ENODEV;
1798 
1799 found:
1800 	*bridge = (struct rockchip_bridge *)dev_get_driver_data(bridge_dev);
1801 	return 0;
1802 }
1803 
1804 static int rockchip_of_find_panel_or_bridge(struct udevice *dev, struct rockchip_panel **panel,
1805 					    struct rockchip_bridge **bridge)
1806 {
1807 	int ret = 0;
1808 
1809 	if (*panel)
1810 		return 0;
1811 
1812 	*panel = NULL;
1813 	*bridge = NULL;
1814 
1815 	if (panel) {
1816 		ret  = rockchip_of_find_panel(dev, panel);
1817 		if (!ret)
1818 			return 0;
1819 	}
1820 
1821 	if (ret) {
1822 		ret = rockchip_of_find_bridge(dev, bridge);
1823 		if (!ret)
1824 			ret = rockchip_of_find_panel_or_bridge((*bridge)->dev, panel,
1825 							       &(*bridge)->next_bridge);
1826 	}
1827 
1828 	return ret;
1829 }
1830 
1831 static struct rockchip_phy *rockchip_of_find_phy(struct udevice *dev)
1832 {
1833 	struct udevice *phy_dev;
1834 	int ret;
1835 
1836 	ret = uclass_get_device_by_phandle(UCLASS_PHY, dev, "phys", &phy_dev);
1837 	if (ret)
1838 		return NULL;
1839 
1840 	return (struct rockchip_phy *)dev_get_driver_data(phy_dev);
1841 }
1842 
1843 static struct udevice *rockchip_of_find_connector_device(ofnode endpoint)
1844 {
1845 	ofnode ep, port, ports, conn;
1846 	uint phandle;
1847 	struct udevice *dev;
1848 	int ret;
1849 
1850 	if (ofnode_read_u32(endpoint, "remote-endpoint", &phandle))
1851 		return NULL;
1852 
1853 	ep = ofnode_get_by_phandle(phandle);
1854 	if (!ofnode_valid(ep) || !ofnode_is_available(ep))
1855 		return NULL;
1856 
1857 	port = ofnode_get_parent(ep);
1858 	if (!ofnode_valid(port))
1859 		return NULL;
1860 
1861 	ports = ofnode_get_parent(port);
1862 	if (!ofnode_valid(ports))
1863 		return NULL;
1864 
1865 	conn = ofnode_get_parent(ports);
1866 	if (!ofnode_valid(conn) || !ofnode_is_available(conn))
1867 		return NULL;
1868 
1869 	ret = uclass_get_device_by_ofnode(UCLASS_DISPLAY, conn, &dev);
1870 	if (ret)
1871 		return NULL;
1872 
1873 	return dev;
1874 }
1875 
1876 static struct rockchip_connector *rockchip_of_get_connector(ofnode endpoint)
1877 {
1878 	struct rockchip_connector *conn;
1879 	struct udevice *dev;
1880 	int ret;
1881 
1882 	dev = rockchip_of_find_connector_device(endpoint);
1883 	if (!dev) {
1884 		printf("Warn: can't find connect driver\n");
1885 		return NULL;
1886 	}
1887 
1888 	conn = get_rockchip_connector_by_device(dev);
1889 	if (!conn)
1890 		return NULL;
1891 	ret = rockchip_of_find_panel_or_bridge(dev, &conn->panel, &conn->bridge);
1892 	if (ret)
1893 		debug("Warn: no find panel or bridge\n");
1894 
1895 	conn->phy = rockchip_of_find_phy(dev);
1896 
1897 	return conn;
1898 }
1899 
1900 static struct rockchip_connector *rockchip_get_split_connector(struct rockchip_connector *conn)
1901 {
1902 	char *conn_name;
1903 	struct device_node *split_node;
1904 	struct udevice *split_dev;
1905 	struct rockchip_connector *split_conn;
1906 	int ret;
1907 
1908 	conn->split_mode = ofnode_read_bool(conn->dev->node, "split-mode");
1909 	conn->dual_channel_mode = ofnode_read_bool(conn->dev->node, "dual-channel");
1910 	if (!conn->split_mode && !conn->dual_channel_mode)
1911 		return NULL;
1912 
1913 	switch (conn->type) {
1914 	case DRM_MODE_CONNECTOR_DisplayPort:
1915 		conn_name = "dp";
1916 		break;
1917 	case DRM_MODE_CONNECTOR_eDP:
1918 		conn_name = "edp";
1919 		break;
1920 	case DRM_MODE_CONNECTOR_HDMIA:
1921 		conn_name = "hdmi";
1922 		break;
1923 	case DRM_MODE_CONNECTOR_LVDS:
1924 		conn_name = "lvds";
1925 		break;
1926 	default:
1927 		return NULL;
1928 	}
1929 
1930 	split_node = of_alias_get_dev(conn_name, !conn->id);
1931 	if (!split_node || !of_device_is_available(split_node))
1932 		return NULL;
1933 
1934 	ret = uclass_get_device_by_ofnode(UCLASS_DISPLAY, np_to_ofnode(split_node), &split_dev);
1935 	if (ret)
1936 		return NULL;
1937 
1938 	split_conn = get_rockchip_connector_by_device(split_dev);
1939 	if (!split_conn)
1940 		return NULL;
1941 	ret = rockchip_of_find_panel_or_bridge(split_dev, &split_conn->panel, &split_conn->bridge);
1942 	if (ret)
1943 		debug("Warn: no find panel or bridge\n");
1944 
1945 	split_conn->phy = rockchip_of_find_phy(split_dev);
1946 	split_conn->split_mode = conn->split_mode;
1947 	split_conn->dual_channel_mode = conn->dual_channel_mode;
1948 
1949 	return split_conn;
1950 }
1951 
1952 static bool rockchip_get_display_path_status(ofnode endpoint)
1953 {
1954 	ofnode ep;
1955 	uint phandle;
1956 
1957 	if (ofnode_read_u32(endpoint, "remote-endpoint", &phandle))
1958 		return false;
1959 
1960 	ep = ofnode_get_by_phandle(phandle);
1961 	if (!ofnode_valid(ep) || !ofnode_is_available(ep))
1962 		return false;
1963 
1964 	return true;
1965 }
1966 
1967 #if defined(CONFIG_ROCKCHIP_RK3568)
1968 static int rockchip_display_fixup_dts(void *blob)
1969 {
1970 	ofnode route_node, route_subnode, conn_ep, conn_port;
1971 	const struct device_node *route_sub_devnode;
1972 	const struct device_node *ep_node, *conn_ep_dev_node;
1973 	u32 phandle;
1974 	int conn_ep_offset;
1975 	const char *route_sub_path, *path;
1976 
1977 	/* Don't go further if new variant after
1978 	 * reading PMUGRF_SOC_CON15
1979 	 */
1980 	if ((readl(0xfdc20100) & GENMASK(15, 14)))
1981 		return 0;
1982 
1983 	route_node = ofnode_path("/display-subsystem/route");
1984 	if (!ofnode_valid(route_node))
1985 		return -EINVAL;
1986 
1987 	ofnode_for_each_subnode(route_subnode, route_node) {
1988 		if (!ofnode_is_available(route_subnode))
1989 			continue;
1990 
1991 		route_sub_devnode = ofnode_to_np(route_subnode);
1992 		route_sub_path = route_sub_devnode->full_name;
1993 		if (!strstr(ofnode_get_name(route_subnode), "dsi") &&
1994 		    !strstr(ofnode_get_name(route_subnode), "edp"))
1995 			return 0;
1996 
1997 		phandle = ofnode_read_u32_default(route_subnode, "connect", -1);
1998 		if (phandle < 0) {
1999 			printf("Warn: can't find connect node's handle\n");
2000 			continue;
2001 		}
2002 
2003 		ep_node = of_find_node_by_phandle(phandle);
2004 		if (!ofnode_valid(np_to_ofnode(ep_node))) {
2005 			printf("Warn: can't find endpoint node from phandle\n");
2006 			continue;
2007 		}
2008 
2009 		ofnode_read_u32(np_to_ofnode(ep_node), "remote-endpoint", &phandle);
2010 		conn_ep = ofnode_get_by_phandle(phandle);
2011 		if (!ofnode_valid(conn_ep) || !ofnode_is_available(conn_ep))
2012 			return -ENODEV;
2013 
2014 		conn_port = ofnode_get_parent(conn_ep);
2015 		if (!ofnode_valid(conn_port))
2016 			return -ENODEV;
2017 
2018 		ofnode_for_each_subnode(conn_ep, conn_port) {
2019 			conn_ep_dev_node = ofnode_to_np(conn_ep);
2020 			path = conn_ep_dev_node->full_name;
2021 			ofnode_read_u32(conn_ep, "remote-endpoint", &phandle);
2022 			conn_ep_offset = fdt_path_offset(blob, path);
2023 
2024 			if (!ofnode_is_available(conn_ep) &&
2025 			    strstr(ofnode_get_name(conn_ep), "endpoint@0")) {
2026 				do_fixup_by_path_u32(blob, route_sub_path,
2027 						     "connect", phandle, 1);
2028 				fdt_status_okay(blob, conn_ep_offset);
2029 
2030 			} else if (ofnode_is_available(conn_ep) &&
2031 				   strstr(ofnode_get_name(conn_ep), "endpoint@1")) {
2032 				fdt_status_disabled(blob, conn_ep_offset);
2033 			}
2034 		}
2035 	}
2036 
2037 	return 0;
2038 }
2039 #endif
2040 
2041 static int rockchip_display_probe(struct udevice *dev)
2042 {
2043 	struct video_priv *uc_priv = dev_get_uclass_priv(dev);
2044 	struct video_uc_platdata *plat = dev_get_uclass_platdata(dev);
2045 	const void *blob = gd->fdt_blob;
2046 	int phandle;
2047 	struct udevice *crtc_dev;
2048 	struct rockchip_crtc *crtc;
2049 	struct rockchip_connector *conn, *split_conn;
2050 	struct display_state *s;
2051 	const char *name;
2052 	int ret;
2053 	ofnode node, route_node, timing_node;
2054 	struct device_node *port_node, *vop_node, *ep_node, *port_parent_node;
2055 	struct public_phy_data *data;
2056 	bool is_ports_node = false;
2057 
2058 #if defined(CONFIG_ROCKCHIP_RK3568)
2059 	rockchip_display_fixup_dts((void *)blob);
2060 #endif
2061 	/* Before relocation we don't need to do anything */
2062 	if (!(gd->flags & GD_FLG_RELOC))
2063 		return 0;
2064 
2065 	data = malloc(sizeof(struct public_phy_data));
2066 	if (!data) {
2067 		printf("failed to alloc phy data\n");
2068 		return -ENOMEM;
2069 	}
2070 	data->phy_init = false;
2071 
2072 	init_display_buffer(plat->base);
2073 
2074 	route_node = dev_read_subnode(dev, "route");
2075 	if (!ofnode_valid(route_node))
2076 		return -ENODEV;
2077 
2078 	ofnode_for_each_subnode(node, route_node) {
2079 		if (!ofnode_is_available(node))
2080 			continue;
2081 		phandle = ofnode_read_u32_default(node, "connect", -1);
2082 		if (phandle < 0) {
2083 			printf("Warn: can't find connect node's handle\n");
2084 			continue;
2085 		}
2086 		ep_node = of_find_node_by_phandle(phandle);
2087 		if (!ofnode_valid(np_to_ofnode(ep_node))) {
2088 			printf("Warn: can't find endpoint node from phandle\n");
2089 			continue;
2090 		}
2091 		port_node = of_get_parent(ep_node);
2092 		if (!ofnode_valid(np_to_ofnode(port_node))) {
2093 			printf("Warn: can't find port node from phandle\n");
2094 			continue;
2095 		}
2096 
2097 		port_parent_node = of_get_parent(port_node);
2098 		if (!ofnode_valid(np_to_ofnode(port_parent_node))) {
2099 			printf("Warn: can't find port parent node from phandle\n");
2100 			continue;
2101 		}
2102 
2103 		is_ports_node = strstr(port_parent_node->full_name, "ports") ? 1 : 0;
2104 		if (is_ports_node) {
2105 			vop_node = of_get_parent(port_parent_node);
2106 			if (!ofnode_valid(np_to_ofnode(vop_node))) {
2107 				printf("Warn: can't find crtc node from phandle\n");
2108 				continue;
2109 			}
2110 		} else {
2111 			vop_node = port_parent_node;
2112 		}
2113 
2114 		ret = uclass_get_device_by_ofnode(UCLASS_VIDEO_CRTC,
2115 						  np_to_ofnode(vop_node),
2116 						  &crtc_dev);
2117 		if (ret) {
2118 			printf("Warn: can't find crtc driver %d\n", ret);
2119 			continue;
2120 		}
2121 		crtc = (struct rockchip_crtc *)dev_get_driver_data(crtc_dev);
2122 
2123 		conn = rockchip_of_get_connector(np_to_ofnode(ep_node));
2124 		if (!conn) {
2125 			printf("Warn: can't get connect driver\n");
2126 			continue;
2127 		}
2128 		split_conn = rockchip_get_split_connector(conn);
2129 
2130 		s = malloc(sizeof(*s));
2131 		if (!s)
2132 			continue;
2133 
2134 		memset(s, 0, sizeof(*s));
2135 
2136 		INIT_LIST_HEAD(&s->head);
2137 		ret = ofnode_read_string_index(node, "logo,uboot", 0, &name);
2138 		if (!ret)
2139 			memcpy(s->ulogo_name, name, strlen(name));
2140 		ret = ofnode_read_string_index(node, "logo,kernel", 0, &name);
2141 		if (!ret)
2142 			memcpy(s->klogo_name, name, strlen(name));
2143 		ret = ofnode_read_string_index(node, "logo,mode", 0, &name);
2144 		if (!strcmp(name, "fullscreen"))
2145 			s->logo_mode = ROCKCHIP_DISPLAY_FULLSCREEN;
2146 		else
2147 			s->logo_mode = ROCKCHIP_DISPLAY_CENTER;
2148 		ret = ofnode_read_string_index(node, "charge_logo,mode", 0, &name);
2149 		if (!strcmp(name, "fullscreen"))
2150 			s->charge_logo_mode = ROCKCHIP_DISPLAY_FULLSCREEN;
2151 		else
2152 			s->charge_logo_mode = ROCKCHIP_DISPLAY_CENTER;
2153 
2154 		s->logo_rotate = ofnode_read_u32_default(node, "logo,rotate", 0);
2155 
2156 		s->force_output = ofnode_read_bool(node, "force-output");
2157 
2158 		if (s->force_output) {
2159 			timing_node = ofnode_find_subnode(node, "force_timing");
2160 			ret = display_get_force_timing_from_dts(timing_node,
2161 								&s->force_mode,
2162 								&s->conn_state.bus_flags);
2163 			if (ofnode_read_u32(node, "force-bus-format", &s->force_bus_format))
2164 				s->force_bus_format = MEDIA_BUS_FMT_RGB888_1X24;
2165 		}
2166 
2167 		s->blob = blob;
2168 		s->conn_state.connector = conn;
2169 		s->conn_state.secondary = NULL;
2170 		s->conn_state.type = conn->type;
2171 		if (split_conn) {
2172 			s->conn_state.secondary = split_conn;
2173 			s->conn_state.output_flags |= ROCKCHIP_OUTPUT_DUAL_CHANNEL_LEFT_RIGHT_MODE;
2174 			s->conn_state.output_flags |= conn->id ? ROCKCHIP_OUTPUT_DATA_SWAP : 0;
2175 		}
2176 		s->conn_state.overscan.left_margin = 100;
2177 		s->conn_state.overscan.right_margin = 100;
2178 		s->conn_state.overscan.top_margin = 100;
2179 		s->conn_state.overscan.bottom_margin = 100;
2180 		s->crtc_state.node = np_to_ofnode(vop_node);
2181 		s->crtc_state.port_node = port_node;
2182 		s->crtc_state.dev = crtc_dev;
2183 		s->crtc_state.crtc = crtc;
2184 		s->crtc_state.crtc_id = get_crtc_id(np_to_ofnode(ep_node), is_ports_node);
2185 		s->node = node;
2186 
2187 		if (is_ports_node) { /* only vop2 will get into here */
2188 			ofnode vp_node = np_to_ofnode(port_node);
2189 			static bool get_plane_mask_from_dts;
2190 
2191 			s->crtc_state.ports_node = port_parent_node;
2192 			if (!get_plane_mask_from_dts) {
2193 				ofnode vp_sub_node;
2194 				int vp_id = 0;
2195 				bool vp_enable = false;
2196 
2197 				ofnode_for_each_subnode(vp_node, np_to_ofnode(port_parent_node)) {
2198 					int cursor_plane = -1;
2199 
2200 					vp_id = ofnode_read_u32_default(vp_node, "reg", 0);
2201 
2202 					s->crtc_state.crtc->vps[vp_id].xmirror_en =
2203 						ofnode_read_bool(vp_node, "xmirror-enable");
2204 
2205 					ret = ofnode_read_u32_default(vp_node, "rockchip,plane-mask", 0);
2206 
2207 					cursor_plane = ofnode_read_u32_default(vp_node, "cursor-win-id", -1);
2208 					s->crtc_state.crtc->vps[vp_id].cursor_plane = cursor_plane;
2209 					if (ret) {
2210 						s->crtc_state.crtc->vps[vp_id].plane_mask = ret;
2211 						s->crtc_state.crtc->assign_plane |= true;
2212 						s->crtc_state.crtc->vps[vp_id].primary_plane_id =
2213 							ofnode_read_u32_default(vp_node, "rockchip,primary-plane", U8_MAX);
2214 						printf("get vp%d plane mask:0x%x, primary id:%d, cursor_plane:%d, from dts\n",
2215 						       vp_id,
2216 						       s->crtc_state.crtc->vps[vp_id].plane_mask,
2217 						       s->crtc_state.crtc->vps[vp_id].primary_plane_id == U8_MAX ? -1 :
2218 						       s->crtc_state.crtc->vps[vp_id].primary_plane_id,
2219 						       cursor_plane);
2220 					}
2221 
2222 					/* To check current vp status */
2223 					vp_enable = false;
2224 					ofnode_for_each_subnode(vp_sub_node, vp_node)
2225 						vp_enable |= rockchip_get_display_path_status(vp_sub_node);
2226 					s->crtc_state.crtc->vps[vp_id].enable = vp_enable;
2227 				}
2228 				get_plane_mask_from_dts = true;
2229 			}
2230 		}
2231 
2232 		get_crtc_mcu_mode(&s->crtc_state, port_node, is_ports_node);
2233 
2234 		ret = ofnode_read_u32_default(s->crtc_state.node,
2235 					      "rockchip,dual-channel-swap", 0);
2236 		s->crtc_state.dual_channel_swap = ret;
2237 
2238 		if (connector_phy_init(conn, data)) {
2239 			printf("Warn: Failed to init phy drivers\n");
2240 			free(s);
2241 			continue;
2242 		}
2243 		list_add_tail(&s->head, &rockchip_display_list);
2244 	}
2245 
2246 	if (list_empty(&rockchip_display_list)) {
2247 		debug("Failed to found available display route\n");
2248 		return -ENODEV;
2249 	}
2250 	rockchip_get_baseparameter();
2251 	display_pre_init();
2252 
2253 	uc_priv->xsize = DRM_ROCKCHIP_FB_WIDTH;
2254 	uc_priv->ysize = DRM_ROCKCHIP_FB_HEIGHT;
2255 	uc_priv->bpix = VIDEO_BPP32;
2256 
2257 	#ifdef CONFIG_DRM_ROCKCHIP_VIDEO_FRAMEBUFFER
2258 	rockchip_show_fbbase(plat->base);
2259 	video_set_flush_dcache(dev, true);
2260 	#endif
2261 
2262 	return 0;
2263 }
2264 
2265 void rockchip_display_fixup(void *blob)
2266 {
2267 	const struct rockchip_connector_funcs *conn_funcs;
2268 	const struct rockchip_crtc_funcs *crtc_funcs;
2269 	struct rockchip_connector *conn;
2270 	const struct rockchip_crtc *crtc;
2271 	struct display_state *s;
2272 	int offset;
2273 	int ret;
2274 	const struct device_node *np;
2275 	const char *path;
2276 	const char *cacm_header;
2277 	u64 aligned_memory_size;
2278 
2279 	if (fdt_node_offset_by_compatible(blob, 0, "rockchip,drm-logo") >= 0) {
2280 		list_for_each_entry(s, &rockchip_display_list, head) {
2281 			ret = load_bmp_logo(&s->logo, s->klogo_name);
2282 			if (ret < 0) {
2283 				s->is_klogo_valid = false;
2284 				printf("VP%d fail to load kernel logo\n", s->crtc_state.crtc_id);
2285 			} else {
2286 				s->is_klogo_valid = true;
2287 			}
2288 		}
2289 
2290 		if (!get_display_size())
2291 			return;
2292 
2293 		aligned_memory_size = (u64)ALIGN(get_display_size(), align_size);
2294 		offset = fdt_update_reserved_memory(blob, "rockchip,drm-logo",
2295 						    (u64)memory_start,
2296 						    aligned_memory_size);
2297 		if (offset < 0)
2298 			printf("failed to reserve drm-loader-logo memory\n");
2299 
2300 		if (get_cubic_memory_size()) {
2301 			aligned_memory_size = (u64)ALIGN(get_cubic_memory_size(), align_size);
2302 			offset = fdt_update_reserved_memory(blob, "rockchip,drm-cubic-lut",
2303 							    (u64)cubic_lut_memory_start,
2304 							    aligned_memory_size);
2305 			if (offset < 0)
2306 				printf("failed to reserve drm-cubic-lut memory\n");
2307 		}
2308 	} else {
2309 		printf("can't found rockchip,drm-logo, use rockchip,fb-logo\n");
2310 		/* Compatible with rkfb display, only need reserve memory */
2311 		offset = fdt_update_reserved_memory(blob, "rockchip,fb-logo",
2312 						    (u64)memory_start,
2313 						    MEMORY_POOL_SIZE);
2314 		if (offset < 0)
2315 			printf("failed to reserve fb-loader-logo memory\n");
2316 		else
2317 			list_for_each_entry(s, &rockchip_display_list, head)
2318 				load_kernel_bmp_logo(&s->logo, s->klogo_name);
2319 		return;
2320 	}
2321 
2322 	list_for_each_entry(s, &rockchip_display_list, head) {
2323 		/*
2324 		 * If plane mask is not set in dts, fixup dts to assign it
2325 		 * whether crtc is initialized or not.
2326 		 */
2327 		if (s->crtc_state.crtc->funcs->fixup_dts && !s->crtc_state.crtc->assign_plane)
2328 			s->crtc_state.crtc->funcs->fixup_dts(s, blob);
2329 
2330 		if (!s->is_init || !s->is_klogo_valid)
2331 			continue;
2332 
2333 		conn = s->conn_state.connector;
2334 		if (!conn)
2335 			continue;
2336 		conn_funcs = conn->funcs;
2337 		if (!conn_funcs) {
2338 			printf("failed to get exist connector\n");
2339 			continue;
2340 		}
2341 
2342 		crtc = s->crtc_state.crtc;
2343 		if (!crtc)
2344 			continue;
2345 
2346 		crtc_funcs = crtc->funcs;
2347 		if (!crtc_funcs) {
2348 			printf("failed to get exist crtc\n");
2349 			continue;
2350 		}
2351 
2352 		np = ofnode_to_np(s->node);
2353 		path = np->full_name;
2354 		fdt_increase_size(blob, 0x400);
2355 #define FDT_SET_U32(name, val) \
2356 		do_fixup_by_path_u32(blob, path, name, val, 1);
2357 
2358 		offset = s->logo.offset + (u32)(unsigned long)s->logo.mem
2359 			 - memory_start;
2360 		FDT_SET_U32("logo,offset", offset);
2361 		FDT_SET_U32("logo,width", s->logo.width);
2362 		FDT_SET_U32("logo,height", s->logo.height);
2363 		FDT_SET_U32("logo,bpp", s->logo.bpp);
2364 		FDT_SET_U32("logo,ymirror", s->logo.ymirror);
2365 		FDT_SET_U32("video,clock", s->conn_state.mode.clock);
2366 		FDT_SET_U32("video,hdisplay", s->conn_state.mode.hdisplay);
2367 		FDT_SET_U32("video,vdisplay", s->conn_state.mode.vdisplay);
2368 		FDT_SET_U32("video,crtc_hsync_end", s->conn_state.mode.crtc_hsync_end);
2369 		FDT_SET_U32("video,crtc_vsync_end", s->conn_state.mode.crtc_vsync_end);
2370 		FDT_SET_U32("video,vrefresh",
2371 			    drm_mode_vrefresh(&s->conn_state.mode));
2372 		FDT_SET_U32("video,flags", s->conn_state.mode.flags);
2373 		FDT_SET_U32("video,aspect_ratio", s->conn_state.mode.picture_aspect_ratio);
2374 		FDT_SET_U32("overscan,left_margin", s->conn_state.overscan.left_margin);
2375 		FDT_SET_U32("overscan,right_margin", s->conn_state.overscan.right_margin);
2376 		FDT_SET_U32("overscan,top_margin", s->conn_state.overscan.top_margin);
2377 		FDT_SET_U32("overscan,bottom_margin", s->conn_state.overscan.bottom_margin);
2378 
2379 		if (s->conn_state.disp_info) {
2380 			cacm_header = (const char*)&s->conn_state.disp_info->cacm_header;
2381 
2382 			FDT_SET_U32("bcsh,brightness", s->conn_state.disp_info->bcsh_info.brightness);
2383 			FDT_SET_U32("bcsh,contrast", s->conn_state.disp_info->bcsh_info.contrast);
2384 			FDT_SET_U32("bcsh,saturation", s->conn_state.disp_info->bcsh_info.saturation);
2385 			FDT_SET_U32("bcsh,hue", s->conn_state.disp_info->bcsh_info.hue);
2386 
2387 			if (!strncasecmp(cacm_header, "CACM", 4)) {
2388 				FDT_SET_U32("post-csc,hue",
2389 					    s->conn_state.disp_info->csc_info.hue);
2390 				FDT_SET_U32("post-csc,saturation",
2391 					    s->conn_state.disp_info->csc_info.saturation);
2392 				FDT_SET_U32("post-csc,contrast",
2393 					    s->conn_state.disp_info->csc_info.contrast);
2394 				FDT_SET_U32("post-csc,brightness",
2395 					    s->conn_state.disp_info->csc_info.brightness);
2396 				FDT_SET_U32("post-csc,r-gain",
2397 					    s->conn_state.disp_info->csc_info.r_gain);
2398 				FDT_SET_U32("post-csc,g-gain",
2399 					    s->conn_state.disp_info->csc_info.g_gain);
2400 				FDT_SET_U32("post-csc,b-gain",
2401 					    s->conn_state.disp_info->csc_info.b_gain);
2402 				FDT_SET_U32("post-csc,r-offset",
2403 					    s->conn_state.disp_info->csc_info.r_offset);
2404 				FDT_SET_U32("post-csc,g-offset",
2405 					    s->conn_state.disp_info->csc_info.g_offset);
2406 				FDT_SET_U32("post-csc,b-offset",
2407 					    s->conn_state.disp_info->csc_info.b_offset);
2408 				FDT_SET_U32("post-csc,enable",
2409 					    s->conn_state.disp_info->csc_info.csc_enable);
2410 			}
2411 		}
2412 
2413 		if (s->conn_state.disp_info->cubic_lut_data.size &&
2414 		    CONFIG_ROCKCHIP_CUBIC_LUT_SIZE)
2415 			FDT_SET_U32("cubic_lut,offset", get_cubic_lut_offset(s->crtc_state.crtc_id));
2416 
2417 #undef FDT_SET_U32
2418 	}
2419 }
2420 
2421 int rockchip_display_bind(struct udevice *dev)
2422 {
2423 	struct video_uc_platdata *plat = dev_get_uclass_platdata(dev);
2424 
2425 	plat->size = DRM_ROCKCHIP_FB_SIZE + MEMORY_POOL_SIZE;
2426 
2427 	return 0;
2428 }
2429 
2430 static const struct udevice_id rockchip_display_ids[] = {
2431 	{ .compatible = "rockchip,display-subsystem" },
2432 	{ }
2433 };
2434 
2435 U_BOOT_DRIVER(rockchip_display) = {
2436 	.name	= "rockchip_display",
2437 	.id	= UCLASS_VIDEO,
2438 	.of_match = rockchip_display_ids,
2439 	.bind	= rockchip_display_bind,
2440 	.probe	= rockchip_display_probe,
2441 };
2442 
2443 static int do_rockchip_logo_show(cmd_tbl_t *cmdtp, int flag, int argc,
2444 			char *const argv[])
2445 {
2446 	if (argc != 1)
2447 		return CMD_RET_USAGE;
2448 
2449 	rockchip_show_logo();
2450 
2451 	return 0;
2452 }
2453 
2454 static int do_rockchip_show_bmp(cmd_tbl_t *cmdtp, int flag, int argc,
2455 				char *const argv[])
2456 {
2457 	if (argc != 2)
2458 		return CMD_RET_USAGE;
2459 
2460 	rockchip_show_bmp(argv[1]);
2461 
2462 	return 0;
2463 }
2464 
2465 static int do_rockchip_vop_dump(cmd_tbl_t *cmdtp, int flag, int argc,
2466 				char *const argv[])
2467 {
2468 	int ret;
2469 
2470 	if (argc < 1 || argc > 2)
2471 		return CMD_RET_USAGE;
2472 
2473 	ret = rockchip_vop_dump(argv[1]);
2474 
2475 	return ret;
2476 }
2477 
2478 U_BOOT_CMD(
2479 	rockchip_show_logo, 1, 1, do_rockchip_logo_show,
2480 	"load and display log from resource partition",
2481 	NULL
2482 );
2483 
2484 U_BOOT_CMD(
2485 	rockchip_show_bmp, 2, 1, do_rockchip_show_bmp,
2486 	"load and display bmp from resource partition",
2487 	"    <bmp_name>"
2488 );
2489 
2490 U_BOOT_CMD(
2491 	vop_dump, 2, 1, do_rockchip_vop_dump,
2492 	"dump vop regs",
2493 	" [a/all]"
2494 );
2495