xref: /linux/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c (revision 001821b0e79716c4e17c71d8e053a23599a7a508)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Copyright (C) 2013 Red Hat
4  * Copyright (c) 2014-2018, The Linux Foundation. All rights reserved.
5  * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
6  *
7  * Author: Rob Clark <robdclark@gmail.com>
8  */
9 
10 #define pr_fmt(fmt)	"[drm:%s:%d] " fmt, __func__, __LINE__
11 
12 #include <linux/debugfs.h>
13 #include <linux/dma-buf.h>
14 #include <linux/of_irq.h>
15 #include <linux/pm_opp.h>
16 
17 #include <drm/drm_crtc.h>
18 #include <drm/drm_file.h>
19 #include <drm/drm_framebuffer.h>
20 #include <drm/drm_vblank.h>
21 #include <drm/drm_writeback.h>
22 
23 #include "msm_drv.h"
24 #include "msm_mmu.h"
25 #include "msm_mdss.h"
26 #include "msm_gem.h"
27 #include "disp/msm_disp_snapshot.h"
28 
29 #include "dpu_core_irq.h"
30 #include "dpu_crtc.h"
31 #include "dpu_encoder.h"
32 #include "dpu_formats.h"
33 #include "dpu_hw_vbif.h"
34 #include "dpu_kms.h"
35 #include "dpu_plane.h"
36 #include "dpu_vbif.h"
37 #include "dpu_writeback.h"
38 
39 #define CREATE_TRACE_POINTS
40 #include "dpu_trace.h"
41 
42 /*
43  * To enable overall DRM driver logging
44  * # echo 0x2 > /sys/module/drm/parameters/debug
45  *
46  * To enable DRM driver h/w logging
47  * # echo <mask> > /sys/kernel/debug/dri/0/debug/hw_log_mask
48  *
49  * See dpu_hw_mdss.h for h/w logging mask definitions (search for DPU_DBG_MASK_)
50  */
51 #define DPU_DEBUGFS_DIR "msm_dpu"
52 #define DPU_DEBUGFS_HWMASKNAME "hw_log_mask"
53 
54 static int dpu_kms_hw_init(struct msm_kms *kms);
55 static void _dpu_kms_mmu_destroy(struct dpu_kms *dpu_kms);
56 
57 #ifdef CONFIG_DEBUG_FS
58 static int _dpu_danger_signal_status(struct seq_file *s,
59 		bool danger_status)
60 {
61 	struct dpu_danger_safe_status status;
62 	struct dpu_kms *kms = s->private;
63 	int i;
64 
65 	if (!kms->hw_mdp) {
66 		DPU_ERROR("invalid arg(s)\n");
67 		return 0;
68 	}
69 
70 	memset(&status, 0, sizeof(struct dpu_danger_safe_status));
71 
72 	pm_runtime_get_sync(&kms->pdev->dev);
73 	if (danger_status) {
74 		seq_puts(s, "\nDanger signal status:\n");
75 		if (kms->hw_mdp->ops.get_danger_status)
76 			kms->hw_mdp->ops.get_danger_status(kms->hw_mdp,
77 					&status);
78 	} else {
79 		seq_puts(s, "\nSafe signal status:\n");
80 		if (kms->hw_mdp->ops.get_safe_status)
81 			kms->hw_mdp->ops.get_safe_status(kms->hw_mdp,
82 					&status);
83 	}
84 	pm_runtime_put_sync(&kms->pdev->dev);
85 
86 	seq_printf(s, "MDP     :  0x%x\n", status.mdp);
87 
88 	for (i = SSPP_VIG0; i < SSPP_MAX; i++)
89 		seq_printf(s, "SSPP%d   :  0x%x  \n", i - SSPP_VIG0,
90 				status.sspp[i]);
91 	seq_puts(s, "\n");
92 
93 	return 0;
94 }
95 
96 static int dpu_debugfs_danger_stats_show(struct seq_file *s, void *v)
97 {
98 	return _dpu_danger_signal_status(s, true);
99 }
100 DEFINE_SHOW_ATTRIBUTE(dpu_debugfs_danger_stats);
101 
102 static int dpu_debugfs_safe_stats_show(struct seq_file *s, void *v)
103 {
104 	return _dpu_danger_signal_status(s, false);
105 }
106 DEFINE_SHOW_ATTRIBUTE(dpu_debugfs_safe_stats);
107 
108 static ssize_t _dpu_plane_danger_read(struct file *file,
109 			char __user *buff, size_t count, loff_t *ppos)
110 {
111 	struct dpu_kms *kms = file->private_data;
112 	int len;
113 	char buf[40];
114 
115 	len = scnprintf(buf, sizeof(buf), "%d\n", !kms->has_danger_ctrl);
116 
117 	return simple_read_from_buffer(buff, count, ppos, buf, len);
118 }
119 
120 static void _dpu_plane_set_danger_state(struct dpu_kms *kms, bool enable)
121 {
122 	struct drm_plane *plane;
123 
124 	drm_for_each_plane(plane, kms->dev) {
125 		if (plane->fb && plane->state) {
126 			dpu_plane_danger_signal_ctrl(plane, enable);
127 			DPU_DEBUG("plane:%d img:%dx%d ",
128 				plane->base.id, plane->fb->width,
129 				plane->fb->height);
130 			DPU_DEBUG("src[%d,%d,%d,%d] dst[%d,%d,%d,%d]\n",
131 				plane->state->src_x >> 16,
132 				plane->state->src_y >> 16,
133 				plane->state->src_w >> 16,
134 				plane->state->src_h >> 16,
135 				plane->state->crtc_x, plane->state->crtc_y,
136 				plane->state->crtc_w, plane->state->crtc_h);
137 		} else {
138 			DPU_DEBUG("Inactive plane:%d\n", plane->base.id);
139 		}
140 	}
141 }
142 
143 static ssize_t _dpu_plane_danger_write(struct file *file,
144 		    const char __user *user_buf, size_t count, loff_t *ppos)
145 {
146 	struct dpu_kms *kms = file->private_data;
147 	int disable_panic;
148 	int ret;
149 
150 	ret = kstrtouint_from_user(user_buf, count, 0, &disable_panic);
151 	if (ret)
152 		return ret;
153 
154 	if (disable_panic) {
155 		/* Disable panic signal for all active pipes */
156 		DPU_DEBUG("Disabling danger:\n");
157 		_dpu_plane_set_danger_state(kms, false);
158 		kms->has_danger_ctrl = false;
159 	} else {
160 		/* Enable panic signal for all active pipes */
161 		DPU_DEBUG("Enabling danger:\n");
162 		kms->has_danger_ctrl = true;
163 		_dpu_plane_set_danger_state(kms, true);
164 	}
165 
166 	return count;
167 }
168 
169 static const struct file_operations dpu_plane_danger_enable = {
170 	.open = simple_open,
171 	.read = _dpu_plane_danger_read,
172 	.write = _dpu_plane_danger_write,
173 };
174 
175 static void dpu_debugfs_danger_init(struct dpu_kms *dpu_kms,
176 		struct dentry *parent)
177 {
178 	struct dentry *entry = debugfs_create_dir("danger", parent);
179 
180 	debugfs_create_file("danger_status", 0600, entry,
181 			dpu_kms, &dpu_debugfs_danger_stats_fops);
182 	debugfs_create_file("safe_status", 0600, entry,
183 			dpu_kms, &dpu_debugfs_safe_stats_fops);
184 	debugfs_create_file("disable_danger", 0600, entry,
185 			dpu_kms, &dpu_plane_danger_enable);
186 
187 }
188 
189 /*
190  * Companion structure for dpu_debugfs_create_regset32.
191  */
192 struct dpu_debugfs_regset32 {
193 	uint32_t offset;
194 	uint32_t blk_len;
195 	struct dpu_kms *dpu_kms;
196 };
197 
198 static int dpu_regset32_show(struct seq_file *s, void *data)
199 {
200 	struct dpu_debugfs_regset32 *regset = s->private;
201 	struct dpu_kms *dpu_kms = regset->dpu_kms;
202 	void __iomem *base;
203 	uint32_t i, addr;
204 
205 	if (!dpu_kms->mmio)
206 		return 0;
207 
208 	base = dpu_kms->mmio + regset->offset;
209 
210 	/* insert padding spaces, if needed */
211 	if (regset->offset & 0xF) {
212 		seq_printf(s, "[%x]", regset->offset & ~0xF);
213 		for (i = 0; i < (regset->offset & 0xF); i += 4)
214 			seq_puts(s, "         ");
215 	}
216 
217 	pm_runtime_get_sync(&dpu_kms->pdev->dev);
218 
219 	/* main register output */
220 	for (i = 0; i < regset->blk_len; i += 4) {
221 		addr = regset->offset + i;
222 		if ((addr & 0xF) == 0x0)
223 			seq_printf(s, i ? "\n[%x]" : "[%x]", addr);
224 		seq_printf(s, " %08x", readl_relaxed(base + i));
225 	}
226 	seq_puts(s, "\n");
227 	pm_runtime_put_sync(&dpu_kms->pdev->dev);
228 
229 	return 0;
230 }
231 DEFINE_SHOW_ATTRIBUTE(dpu_regset32);
232 
233 void dpu_debugfs_create_regset32(const char *name, umode_t mode,
234 		void *parent,
235 		uint32_t offset, uint32_t length, struct dpu_kms *dpu_kms)
236 {
237 	struct dpu_debugfs_regset32 *regset;
238 
239 	if (WARN_ON(!name || !dpu_kms || !length))
240 		return;
241 
242 	regset = devm_kzalloc(&dpu_kms->pdev->dev, sizeof(*regset), GFP_KERNEL);
243 	if (!regset)
244 		return;
245 
246 	/* make sure offset is a multiple of 4 */
247 	regset->offset = round_down(offset, 4);
248 	regset->blk_len = length;
249 	regset->dpu_kms = dpu_kms;
250 
251 	debugfs_create_file(name, mode, parent, regset, &dpu_regset32_fops);
252 }
253 
254 static void dpu_debugfs_sspp_init(struct dpu_kms *dpu_kms, struct dentry *debugfs_root)
255 {
256 	struct dentry *entry = debugfs_create_dir("sspp", debugfs_root);
257 	int i;
258 
259 	if (IS_ERR(entry))
260 		return;
261 
262 	for (i = SSPP_NONE; i < SSPP_MAX; i++) {
263 		struct dpu_hw_sspp *hw = dpu_rm_get_sspp(&dpu_kms->rm, i);
264 
265 		if (!hw)
266 			continue;
267 
268 		_dpu_hw_sspp_init_debugfs(hw, dpu_kms, entry);
269 	}
270 }
271 
272 static int dpu_kms_debugfs_init(struct msm_kms *kms, struct drm_minor *minor)
273 {
274 	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
275 	void *p = dpu_hw_util_get_log_mask_ptr();
276 	struct dentry *entry;
277 
278 	if (!p)
279 		return -EINVAL;
280 
281 	/* Only create a set of debugfs for the primary node, ignore render nodes */
282 	if (minor->type != DRM_MINOR_PRIMARY)
283 		return 0;
284 
285 	entry = debugfs_create_dir("debug", minor->debugfs_root);
286 
287 	debugfs_create_x32(DPU_DEBUGFS_HWMASKNAME, 0600, entry, p);
288 
289 	dpu_debugfs_danger_init(dpu_kms, entry);
290 	dpu_debugfs_vbif_init(dpu_kms, entry);
291 	dpu_debugfs_core_irq_init(dpu_kms, entry);
292 	dpu_debugfs_sspp_init(dpu_kms, entry);
293 
294 	return dpu_core_perf_debugfs_init(dpu_kms, entry);
295 }
296 #endif
297 
298 /* Global/shared object state funcs */
299 
300 /*
301  * This is a helper that returns the private state currently in operation.
302  * Note that this would return the "old_state" if called in the atomic check
303  * path, and the "new_state" after the atomic swap has been done.
304  */
305 struct dpu_global_state *
306 dpu_kms_get_existing_global_state(struct dpu_kms *dpu_kms)
307 {
308 	return to_dpu_global_state(dpu_kms->global_state.state);
309 }
310 
311 /*
312  * This acquires the modeset lock set aside for global state, creates
313  * a new duplicated private object state.
314  */
315 struct dpu_global_state *dpu_kms_get_global_state(struct drm_atomic_state *s)
316 {
317 	struct msm_drm_private *priv = s->dev->dev_private;
318 	struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms);
319 	struct drm_private_state *priv_state;
320 
321 	priv_state = drm_atomic_get_private_obj_state(s,
322 						&dpu_kms->global_state);
323 	if (IS_ERR(priv_state))
324 		return ERR_CAST(priv_state);
325 
326 	return to_dpu_global_state(priv_state);
327 }
328 
329 static struct drm_private_state *
330 dpu_kms_global_duplicate_state(struct drm_private_obj *obj)
331 {
332 	struct dpu_global_state *state;
333 
334 	state = kmemdup(obj->state, sizeof(*state), GFP_KERNEL);
335 	if (!state)
336 		return NULL;
337 
338 	__drm_atomic_helper_private_obj_duplicate_state(obj, &state->base);
339 
340 	return &state->base;
341 }
342 
343 static void dpu_kms_global_destroy_state(struct drm_private_obj *obj,
344 				      struct drm_private_state *state)
345 {
346 	struct dpu_global_state *dpu_state = to_dpu_global_state(state);
347 
348 	kfree(dpu_state);
349 }
350 
351 static void dpu_kms_global_print_state(struct drm_printer *p,
352 				       const struct drm_private_state *state)
353 {
354 	const struct dpu_global_state *global_state = to_dpu_global_state(state);
355 
356 	dpu_rm_print_state(p, global_state);
357 }
358 
359 static const struct drm_private_state_funcs dpu_kms_global_state_funcs = {
360 	.atomic_duplicate_state = dpu_kms_global_duplicate_state,
361 	.atomic_destroy_state = dpu_kms_global_destroy_state,
362 	.atomic_print_state = dpu_kms_global_print_state,
363 };
364 
365 static int dpu_kms_global_obj_init(struct dpu_kms *dpu_kms)
366 {
367 	struct dpu_global_state *state;
368 
369 	state = kzalloc(sizeof(*state), GFP_KERNEL);
370 	if (!state)
371 		return -ENOMEM;
372 
373 	drm_atomic_private_obj_init(dpu_kms->dev, &dpu_kms->global_state,
374 				    &state->base,
375 				    &dpu_kms_global_state_funcs);
376 
377 	state->rm = &dpu_kms->rm;
378 
379 	return 0;
380 }
381 
382 static void dpu_kms_global_obj_fini(struct dpu_kms *dpu_kms)
383 {
384 	drm_atomic_private_obj_fini(&dpu_kms->global_state);
385 }
386 
387 static int dpu_kms_parse_data_bus_icc_path(struct dpu_kms *dpu_kms)
388 {
389 	struct icc_path *path0;
390 	struct icc_path *path1;
391 	struct device *dpu_dev = &dpu_kms->pdev->dev;
392 
393 	path0 = msm_icc_get(dpu_dev, "mdp0-mem");
394 	path1 = msm_icc_get(dpu_dev, "mdp1-mem");
395 
396 	if (IS_ERR_OR_NULL(path0))
397 		return PTR_ERR_OR_ZERO(path0);
398 
399 	dpu_kms->path[0] = path0;
400 	dpu_kms->num_paths = 1;
401 
402 	if (!IS_ERR_OR_NULL(path1)) {
403 		dpu_kms->path[1] = path1;
404 		dpu_kms->num_paths++;
405 	}
406 	return 0;
407 }
408 
409 static int dpu_kms_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc)
410 {
411 	return dpu_crtc_vblank(crtc, true);
412 }
413 
414 static void dpu_kms_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc)
415 {
416 	dpu_crtc_vblank(crtc, false);
417 }
418 
419 static void dpu_kms_enable_commit(struct msm_kms *kms)
420 {
421 	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
422 	pm_runtime_get_sync(&dpu_kms->pdev->dev);
423 }
424 
425 static void dpu_kms_disable_commit(struct msm_kms *kms)
426 {
427 	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
428 	pm_runtime_put_sync(&dpu_kms->pdev->dev);
429 }
430 
431 static void dpu_kms_flush_commit(struct msm_kms *kms, unsigned crtc_mask)
432 {
433 	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
434 	struct drm_crtc *crtc;
435 
436 	for_each_crtc_mask(dpu_kms->dev, crtc, crtc_mask) {
437 		if (!crtc->state->active)
438 			continue;
439 
440 		trace_dpu_kms_commit(DRMID(crtc));
441 		dpu_crtc_commit_kickoff(crtc);
442 	}
443 }
444 
445 static void dpu_kms_complete_commit(struct msm_kms *kms, unsigned crtc_mask)
446 {
447 	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
448 	struct drm_crtc *crtc;
449 
450 	DPU_ATRACE_BEGIN("kms_complete_commit");
451 
452 	for_each_crtc_mask(dpu_kms->dev, crtc, crtc_mask)
453 		dpu_crtc_complete_commit(crtc);
454 
455 	DPU_ATRACE_END("kms_complete_commit");
456 }
457 
458 static void dpu_kms_wait_for_commit_done(struct msm_kms *kms,
459 		struct drm_crtc *crtc)
460 {
461 	struct drm_encoder *encoder;
462 	struct drm_device *dev;
463 	int ret;
464 
465 	if (!kms || !crtc || !crtc->state) {
466 		DPU_ERROR("invalid params\n");
467 		return;
468 	}
469 
470 	dev = crtc->dev;
471 
472 	if (!crtc->state->enable) {
473 		DPU_DEBUG("[crtc:%d] not enable\n", crtc->base.id);
474 		return;
475 	}
476 
477 	if (!drm_atomic_crtc_effectively_active(crtc->state)) {
478 		DPU_DEBUG("[crtc:%d] not active\n", crtc->base.id);
479 		return;
480 	}
481 
482 	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
483 		if (encoder->crtc != crtc)
484 			continue;
485 		/*
486 		 * Wait for post-flush if necessary to delay before
487 		 * plane_cleanup. For example, wait for vsync in case of video
488 		 * mode panels. This may be a no-op for command mode panels.
489 		 */
490 		trace_dpu_kms_wait_for_commit_done(DRMID(crtc));
491 		ret = dpu_encoder_wait_for_commit_done(encoder);
492 		if (ret && ret != -EWOULDBLOCK) {
493 			DPU_ERROR("wait for commit done returned %d\n", ret);
494 			break;
495 		}
496 	}
497 }
498 
499 static void dpu_kms_wait_flush(struct msm_kms *kms, unsigned crtc_mask)
500 {
501 	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
502 	struct drm_crtc *crtc;
503 
504 	for_each_crtc_mask(dpu_kms->dev, crtc, crtc_mask)
505 		dpu_kms_wait_for_commit_done(kms, crtc);
506 }
507 
508 static int _dpu_kms_initialize_dsi(struct drm_device *dev,
509 				    struct msm_drm_private *priv,
510 				    struct dpu_kms *dpu_kms)
511 {
512 	struct drm_encoder *encoder = NULL;
513 	struct msm_display_info info;
514 	int i, rc = 0;
515 
516 	if (!(priv->dsi[0] || priv->dsi[1]))
517 		return rc;
518 
519 	/*
520 	 * We support following confiurations:
521 	 * - Single DSI host (dsi0 or dsi1)
522 	 * - Two independent DSI hosts
523 	 * - Bonded DSI0 and DSI1 hosts
524 	 *
525 	 * TODO: Support swapping DSI0 and DSI1 in the bonded setup.
526 	 */
527 	for (i = 0; i < ARRAY_SIZE(priv->dsi); i++) {
528 		int other = (i + 1) % 2;
529 
530 		if (!priv->dsi[i])
531 			continue;
532 
533 		if (msm_dsi_is_bonded_dsi(priv->dsi[i]) &&
534 		    !msm_dsi_is_master_dsi(priv->dsi[i]))
535 			continue;
536 
537 		memset(&info, 0, sizeof(info));
538 		info.intf_type = INTF_DSI;
539 
540 		info.h_tile_instance[info.num_of_h_tiles++] = i;
541 		if (msm_dsi_is_bonded_dsi(priv->dsi[i]))
542 			info.h_tile_instance[info.num_of_h_tiles++] = other;
543 
544 		info.is_cmd_mode = msm_dsi_is_cmd_mode(priv->dsi[i]);
545 
546 		encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_DSI, &info);
547 		if (IS_ERR(encoder)) {
548 			DPU_ERROR("encoder init failed for dsi display\n");
549 			return PTR_ERR(encoder);
550 		}
551 
552 		rc = msm_dsi_modeset_init(priv->dsi[i], dev, encoder);
553 		if (rc) {
554 			DPU_ERROR("modeset_init failed for dsi[%d], rc = %d\n",
555 				i, rc);
556 			break;
557 		}
558 
559 		if (msm_dsi_is_bonded_dsi(priv->dsi[i]) && priv->dsi[other]) {
560 			rc = msm_dsi_modeset_init(priv->dsi[other], dev, encoder);
561 			if (rc) {
562 				DPU_ERROR("modeset_init failed for dsi[%d], rc = %d\n",
563 					other, rc);
564 				break;
565 			}
566 		}
567 	}
568 
569 	return rc;
570 }
571 
572 static int _dpu_kms_initialize_displayport(struct drm_device *dev,
573 					    struct msm_drm_private *priv,
574 					    struct dpu_kms *dpu_kms)
575 {
576 	struct drm_encoder *encoder = NULL;
577 	struct msm_display_info info;
578 	bool yuv_supported;
579 	int rc;
580 	int i;
581 
582 	for (i = 0; i < ARRAY_SIZE(priv->dp); i++) {
583 		if (!priv->dp[i])
584 			continue;
585 
586 		memset(&info, 0, sizeof(info));
587 		info.num_of_h_tiles = 1;
588 		info.h_tile_instance[0] = i;
589 		info.intf_type = INTF_DP;
590 
591 		encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_TMDS, &info);
592 		if (IS_ERR(encoder)) {
593 			DPU_ERROR("encoder init failed for dsi display\n");
594 			return PTR_ERR(encoder);
595 		}
596 
597 		yuv_supported = !!dpu_kms->catalog->cdm;
598 		rc = msm_dp_modeset_init(priv->dp[i], dev, encoder, yuv_supported);
599 		if (rc) {
600 			DPU_ERROR("modeset_init failed for DP, rc = %d\n", rc);
601 			return rc;
602 		}
603 	}
604 
605 	return 0;
606 }
607 
608 static int _dpu_kms_initialize_hdmi(struct drm_device *dev,
609 				    struct msm_drm_private *priv,
610 				    struct dpu_kms *dpu_kms)
611 {
612 	struct drm_encoder *encoder = NULL;
613 	struct msm_display_info info;
614 	int rc;
615 
616 	if (!priv->hdmi)
617 		return 0;
618 
619 	memset(&info, 0, sizeof(info));
620 	info.num_of_h_tiles = 1;
621 	info.h_tile_instance[0] = 0;
622 	info.intf_type = INTF_HDMI;
623 
624 	encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_TMDS, &info);
625 	if (IS_ERR(encoder)) {
626 		DPU_ERROR("encoder init failed for HDMI display\n");
627 		return PTR_ERR(encoder);
628 	}
629 
630 	rc = msm_hdmi_modeset_init(priv->hdmi, dev, encoder);
631 	if (rc) {
632 		DPU_ERROR("modeset_init failed for DP, rc = %d\n", rc);
633 		return rc;
634 	}
635 
636 	return 0;
637 }
638 
639 static int _dpu_kms_initialize_writeback(struct drm_device *dev,
640 		struct msm_drm_private *priv, struct dpu_kms *dpu_kms,
641 		const u32 *wb_formats, int n_formats)
642 {
643 	struct drm_encoder *encoder = NULL;
644 	struct msm_display_info info;
645 	const enum dpu_wb wb_idx = WB_2;
646 	u32 maxlinewidth;
647 	int rc;
648 
649 	memset(&info, 0, sizeof(info));
650 
651 	info.num_of_h_tiles = 1;
652 	/* use only WB idx 2 instance for DPU */
653 	info.h_tile_instance[0] = wb_idx;
654 	info.intf_type = INTF_WB;
655 
656 	maxlinewidth = dpu_rm_get_wb(&dpu_kms->rm, info.h_tile_instance[0])->caps->maxlinewidth;
657 
658 	encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_VIRTUAL, &info);
659 	if (IS_ERR(encoder)) {
660 		DPU_ERROR("encoder init failed for dsi display\n");
661 		return PTR_ERR(encoder);
662 	}
663 
664 	rc = dpu_writeback_init(dev, encoder, wb_formats, n_formats, maxlinewidth);
665 	if (rc) {
666 		DPU_ERROR("dpu_writeback_init, rc = %d\n", rc);
667 		return rc;
668 	}
669 
670 	return 0;
671 }
672 
673 /**
674  * _dpu_kms_setup_displays - create encoders, bridges and connectors
675  *                           for underlying displays
676  * @dev:        Pointer to drm device structure
677  * @priv:       Pointer to private drm device data
678  * @dpu_kms:    Pointer to dpu kms structure
679  * Returns:     Zero on success
680  */
681 static int _dpu_kms_setup_displays(struct drm_device *dev,
682 				    struct msm_drm_private *priv,
683 				    struct dpu_kms *dpu_kms)
684 {
685 	int rc = 0;
686 	int i;
687 
688 	rc = _dpu_kms_initialize_dsi(dev, priv, dpu_kms);
689 	if (rc) {
690 		DPU_ERROR("initialize_dsi failed, rc = %d\n", rc);
691 		return rc;
692 	}
693 
694 	rc = _dpu_kms_initialize_displayport(dev, priv, dpu_kms);
695 	if (rc) {
696 		DPU_ERROR("initialize_DP failed, rc = %d\n", rc);
697 		return rc;
698 	}
699 
700 	rc = _dpu_kms_initialize_hdmi(dev, priv, dpu_kms);
701 	if (rc) {
702 		DPU_ERROR("initialize HDMI failed, rc = %d\n", rc);
703 		return rc;
704 	}
705 
706 	/* Since WB isn't a driver check the catalog before initializing */
707 	if (dpu_kms->catalog->wb_count) {
708 		for (i = 0; i < dpu_kms->catalog->wb_count; i++) {
709 			if (dpu_kms->catalog->wb[i].id == WB_2) {
710 				rc = _dpu_kms_initialize_writeback(dev, priv, dpu_kms,
711 						dpu_kms->catalog->wb[i].format_list,
712 						dpu_kms->catalog->wb[i].num_formats);
713 				if (rc) {
714 					DPU_ERROR("initialize_WB failed, rc = %d\n", rc);
715 					return rc;
716 				}
717 			}
718 		}
719 	}
720 
721 	return rc;
722 }
723 
724 #define MAX_PLANES 20
725 static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms)
726 {
727 	struct drm_device *dev;
728 	struct drm_plane *primary_planes[MAX_PLANES], *plane;
729 	struct drm_plane *cursor_planes[MAX_PLANES] = { NULL };
730 	struct drm_crtc *crtc;
731 	struct drm_encoder *encoder;
732 	unsigned int num_encoders;
733 
734 	struct msm_drm_private *priv;
735 	const struct dpu_mdss_cfg *catalog;
736 
737 	int primary_planes_idx = 0, cursor_planes_idx = 0, i, ret;
738 	int max_crtc_count;
739 	dev = dpu_kms->dev;
740 	priv = dev->dev_private;
741 	catalog = dpu_kms->catalog;
742 
743 	/*
744 	 * Create encoder and query display drivers to create
745 	 * bridges and connectors
746 	 */
747 	ret = _dpu_kms_setup_displays(dev, priv, dpu_kms);
748 	if (ret)
749 		return ret;
750 
751 	num_encoders = 0;
752 	drm_for_each_encoder(encoder, dev)
753 		num_encoders++;
754 
755 	max_crtc_count = min(catalog->mixer_count, num_encoders);
756 
757 	/* Create the planes, keeping track of one primary/cursor per crtc */
758 	for (i = 0; i < catalog->sspp_count; i++) {
759 		enum drm_plane_type type;
760 
761 		if ((catalog->sspp[i].features & BIT(DPU_SSPP_CURSOR))
762 			&& cursor_planes_idx < max_crtc_count)
763 			type = DRM_PLANE_TYPE_CURSOR;
764 		else if (primary_planes_idx < max_crtc_count)
765 			type = DRM_PLANE_TYPE_PRIMARY;
766 		else
767 			type = DRM_PLANE_TYPE_OVERLAY;
768 
769 		DPU_DEBUG("Create plane type %d with features %lx (cur %lx)\n",
770 			  type, catalog->sspp[i].features,
771 			  catalog->sspp[i].features & BIT(DPU_SSPP_CURSOR));
772 
773 		plane = dpu_plane_init(dev, catalog->sspp[i].id, type,
774 				       (1UL << max_crtc_count) - 1);
775 		if (IS_ERR(plane)) {
776 			DPU_ERROR("dpu_plane_init failed\n");
777 			ret = PTR_ERR(plane);
778 			return ret;
779 		}
780 
781 		if (type == DRM_PLANE_TYPE_CURSOR)
782 			cursor_planes[cursor_planes_idx++] = plane;
783 		else if (type == DRM_PLANE_TYPE_PRIMARY)
784 			primary_planes[primary_planes_idx++] = plane;
785 	}
786 
787 	max_crtc_count = min(max_crtc_count, primary_planes_idx);
788 
789 	/* Create one CRTC per encoder */
790 	for (i = 0; i < max_crtc_count; i++) {
791 		crtc = dpu_crtc_init(dev, primary_planes[i], cursor_planes[i]);
792 		if (IS_ERR(crtc)) {
793 			ret = PTR_ERR(crtc);
794 			return ret;
795 		}
796 		priv->num_crtcs++;
797 	}
798 
799 	/* All CRTCs are compatible with all encoders */
800 	drm_for_each_encoder(encoder, dev)
801 		encoder->possible_crtcs = (1 << priv->num_crtcs) - 1;
802 
803 	return 0;
804 }
805 
806 static void _dpu_kms_hw_destroy(struct dpu_kms *dpu_kms)
807 {
808 	int i;
809 
810 	dpu_kms->hw_intr = NULL;
811 
812 	/* safe to call these more than once during shutdown */
813 	_dpu_kms_mmu_destroy(dpu_kms);
814 
815 	for (i = 0; i < ARRAY_SIZE(dpu_kms->hw_vbif); i++) {
816 		dpu_kms->hw_vbif[i] = NULL;
817 	}
818 
819 	dpu_kms_global_obj_fini(dpu_kms);
820 
821 	dpu_kms->catalog = NULL;
822 
823 	dpu_kms->hw_mdp = NULL;
824 }
825 
826 static void dpu_kms_destroy(struct msm_kms *kms)
827 {
828 	struct dpu_kms *dpu_kms;
829 
830 	if (!kms) {
831 		DPU_ERROR("invalid kms\n");
832 		return;
833 	}
834 
835 	dpu_kms = to_dpu_kms(kms);
836 
837 	_dpu_kms_hw_destroy(dpu_kms);
838 
839 	msm_kms_destroy(&dpu_kms->base);
840 
841 	if (dpu_kms->rpm_enabled)
842 		pm_runtime_disable(&dpu_kms->pdev->dev);
843 }
844 
845 static int dpu_irq_postinstall(struct msm_kms *kms)
846 {
847 	struct msm_drm_private *priv;
848 	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
849 
850 	if (!dpu_kms || !dpu_kms->dev)
851 		return -EINVAL;
852 
853 	priv = dpu_kms->dev->dev_private;
854 	if (!priv)
855 		return -EINVAL;
856 
857 	return 0;
858 }
859 
860 static void dpu_kms_mdp_snapshot(struct msm_disp_state *disp_state, struct msm_kms *kms)
861 {
862 	int i;
863 	struct dpu_kms *dpu_kms;
864 	const struct dpu_mdss_cfg *cat;
865 	void __iomem *base;
866 
867 	dpu_kms = to_dpu_kms(kms);
868 
869 	cat = dpu_kms->catalog;
870 
871 	pm_runtime_get_sync(&dpu_kms->pdev->dev);
872 
873 	/* dump CTL sub-blocks HW regs info */
874 	for (i = 0; i < cat->ctl_count; i++)
875 		msm_disp_snapshot_add_block(disp_state, cat->ctl[i].len,
876 				dpu_kms->mmio + cat->ctl[i].base, cat->ctl[i].name);
877 
878 	/* dump DSPP sub-blocks HW regs info */
879 	for (i = 0; i < cat->dspp_count; i++) {
880 		base = dpu_kms->mmio + cat->dspp[i].base;
881 		msm_disp_snapshot_add_block(disp_state, cat->dspp[i].len, base, cat->dspp[i].name);
882 
883 		if (cat->dspp[i].sblk && cat->dspp[i].sblk->pcc.len > 0)
884 			msm_disp_snapshot_add_block(disp_state, cat->dspp[i].sblk->pcc.len,
885 						    base + cat->dspp[i].sblk->pcc.base, "%s_%s",
886 						    cat->dspp[i].name,
887 						    cat->dspp[i].sblk->pcc.name);
888 	}
889 
890 	/* dump INTF sub-blocks HW regs info */
891 	for (i = 0; i < cat->intf_count; i++)
892 		msm_disp_snapshot_add_block(disp_state, cat->intf[i].len,
893 				dpu_kms->mmio + cat->intf[i].base, cat->intf[i].name);
894 
895 	/* dump PP sub-blocks HW regs info */
896 	for (i = 0; i < cat->pingpong_count; i++) {
897 		base = dpu_kms->mmio + cat->pingpong[i].base;
898 		msm_disp_snapshot_add_block(disp_state, cat->pingpong[i].len, base,
899 					    cat->pingpong[i].name);
900 
901 		/* TE2 sub-block has length of 0, so will not print it */
902 
903 		if (cat->pingpong[i].sblk && cat->pingpong[i].sblk->dither.len > 0)
904 			msm_disp_snapshot_add_block(disp_state, cat->pingpong[i].sblk->dither.len,
905 						    base + cat->pingpong[i].sblk->dither.base,
906 						    "%s_%s", cat->pingpong[i].name,
907 						    cat->pingpong[i].sblk->dither.name);
908 	}
909 
910 	/* dump SSPP sub-blocks HW regs info */
911 	for (i = 0; i < cat->sspp_count; i++) {
912 		base = dpu_kms->mmio + cat->sspp[i].base;
913 		msm_disp_snapshot_add_block(disp_state, cat->sspp[i].len, base, cat->sspp[i].name);
914 
915 		if (cat->sspp[i].sblk && cat->sspp[i].sblk->scaler_blk.len > 0)
916 			msm_disp_snapshot_add_block(disp_state, cat->sspp[i].sblk->scaler_blk.len,
917 						    base + cat->sspp[i].sblk->scaler_blk.base,
918 						    "%s_%s", cat->sspp[i].name,
919 						    cat->sspp[i].sblk->scaler_blk.name);
920 
921 		if (cat->sspp[i].sblk && cat->sspp[i].sblk->csc_blk.len > 0)
922 			msm_disp_snapshot_add_block(disp_state, cat->sspp[i].sblk->csc_blk.len,
923 						    base + cat->sspp[i].sblk->csc_blk.base,
924 						    "%s_%s", cat->sspp[i].name,
925 						    cat->sspp[i].sblk->csc_blk.name);
926 	}
927 
928 	/* dump LM sub-blocks HW regs info */
929 	for (i = 0; i < cat->mixer_count; i++)
930 		msm_disp_snapshot_add_block(disp_state, cat->mixer[i].len,
931 				dpu_kms->mmio + cat->mixer[i].base, cat->mixer[i].name);
932 
933 	/* dump WB sub-blocks HW regs info */
934 	for (i = 0; i < cat->wb_count; i++)
935 		msm_disp_snapshot_add_block(disp_state, cat->wb[i].len,
936 				dpu_kms->mmio + cat->wb[i].base, cat->wb[i].name);
937 
938 	if (cat->mdp[0].features & BIT(DPU_MDP_PERIPH_0_REMOVED)) {
939 		msm_disp_snapshot_add_block(disp_state, MDP_PERIPH_TOP0,
940 				dpu_kms->mmio + cat->mdp[0].base, "top");
941 		msm_disp_snapshot_add_block(disp_state, cat->mdp[0].len - MDP_PERIPH_TOP0_END,
942 				dpu_kms->mmio + cat->mdp[0].base + MDP_PERIPH_TOP0_END, "top_2");
943 	} else {
944 		msm_disp_snapshot_add_block(disp_state, cat->mdp[0].len,
945 				dpu_kms->mmio + cat->mdp[0].base, "top");
946 	}
947 
948 	/* dump DSC sub-blocks HW regs info */
949 	for (i = 0; i < cat->dsc_count; i++) {
950 		base = dpu_kms->mmio + cat->dsc[i].base;
951 		msm_disp_snapshot_add_block(disp_state, cat->dsc[i].len, base, cat->dsc[i].name);
952 
953 		if (cat->dsc[i].features & BIT(DPU_DSC_HW_REV_1_2)) {
954 			struct dpu_dsc_blk enc = cat->dsc[i].sblk->enc;
955 			struct dpu_dsc_blk ctl = cat->dsc[i].sblk->ctl;
956 
957 			msm_disp_snapshot_add_block(disp_state, enc.len, base + enc.base, "%s_%s",
958 						    cat->dsc[i].name, enc.name);
959 			msm_disp_snapshot_add_block(disp_state, ctl.len, base + ctl.base, "%s_%s",
960 						    cat->dsc[i].name, ctl.name);
961 		}
962 	}
963 
964 	if (cat->cdm)
965 		msm_disp_snapshot_add_block(disp_state, cat->cdm->len,
966 					    dpu_kms->mmio + cat->cdm->base, cat->cdm->name);
967 
968 	pm_runtime_put_sync(&dpu_kms->pdev->dev);
969 }
970 
971 static const struct msm_kms_funcs kms_funcs = {
972 	.hw_init         = dpu_kms_hw_init,
973 	.irq_preinstall  = dpu_core_irq_preinstall,
974 	.irq_postinstall = dpu_irq_postinstall,
975 	.irq_uninstall   = dpu_core_irq_uninstall,
976 	.irq             = dpu_core_irq,
977 	.enable_commit   = dpu_kms_enable_commit,
978 	.disable_commit  = dpu_kms_disable_commit,
979 	.flush_commit    = dpu_kms_flush_commit,
980 	.wait_flush      = dpu_kms_wait_flush,
981 	.complete_commit = dpu_kms_complete_commit,
982 	.enable_vblank   = dpu_kms_enable_vblank,
983 	.disable_vblank  = dpu_kms_disable_vblank,
984 	.check_modified_format = dpu_format_check_modified_format,
985 	.destroy         = dpu_kms_destroy,
986 	.snapshot        = dpu_kms_mdp_snapshot,
987 #ifdef CONFIG_DEBUG_FS
988 	.debugfs_init    = dpu_kms_debugfs_init,
989 #endif
990 };
991 
992 static void _dpu_kms_mmu_destroy(struct dpu_kms *dpu_kms)
993 {
994 	struct msm_mmu *mmu;
995 
996 	if (!dpu_kms->base.aspace)
997 		return;
998 
999 	mmu = dpu_kms->base.aspace->mmu;
1000 
1001 	mmu->funcs->detach(mmu);
1002 	msm_gem_address_space_put(dpu_kms->base.aspace);
1003 
1004 	dpu_kms->base.aspace = NULL;
1005 }
1006 
1007 static int _dpu_kms_mmu_init(struct dpu_kms *dpu_kms)
1008 {
1009 	struct msm_gem_address_space *aspace;
1010 
1011 	aspace = msm_kms_init_aspace(dpu_kms->dev);
1012 	if (IS_ERR(aspace))
1013 		return PTR_ERR(aspace);
1014 
1015 	dpu_kms->base.aspace = aspace;
1016 
1017 	return 0;
1018 }
1019 
1020 unsigned long dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name)
1021 {
1022 	struct clk *clk;
1023 
1024 	clk = msm_clk_bulk_get_clock(dpu_kms->clocks, dpu_kms->num_clocks, clock_name);
1025 	if (!clk)
1026 		return 0;
1027 
1028 	return clk_get_rate(clk);
1029 }
1030 
1031 #define	DPU_PERF_DEFAULT_MAX_CORE_CLK_RATE	412500000
1032 
1033 static int dpu_kms_hw_init(struct msm_kms *kms)
1034 {
1035 	struct dpu_kms *dpu_kms;
1036 	struct drm_device *dev;
1037 	int i, rc = -EINVAL;
1038 	unsigned long max_core_clk_rate;
1039 	u32 core_rev;
1040 
1041 	if (!kms) {
1042 		DPU_ERROR("invalid kms\n");
1043 		return rc;
1044 	}
1045 
1046 	dpu_kms = to_dpu_kms(kms);
1047 	dev = dpu_kms->dev;
1048 
1049 	dev->mode_config.cursor_width = 512;
1050 	dev->mode_config.cursor_height = 512;
1051 
1052 	rc = dpu_kms_global_obj_init(dpu_kms);
1053 	if (rc)
1054 		return rc;
1055 
1056 	atomic_set(&dpu_kms->bandwidth_ref, 0);
1057 
1058 	rc = pm_runtime_resume_and_get(&dpu_kms->pdev->dev);
1059 	if (rc < 0)
1060 		goto error;
1061 
1062 	core_rev = readl_relaxed(dpu_kms->mmio + 0x0);
1063 
1064 	pr_info("dpu hardware revision:0x%x\n", core_rev);
1065 
1066 	dpu_kms->catalog = of_device_get_match_data(dev->dev);
1067 	if (!dpu_kms->catalog) {
1068 		DPU_ERROR("device config not known!\n");
1069 		rc = -EINVAL;
1070 		goto err_pm_put;
1071 	}
1072 
1073 	/*
1074 	 * Now we need to read the HW catalog and initialize resources such as
1075 	 * clocks, regulators, GDSC/MMAGIC, ioremap the register ranges etc
1076 	 */
1077 	rc = _dpu_kms_mmu_init(dpu_kms);
1078 	if (rc) {
1079 		DPU_ERROR("dpu_kms_mmu_init failed: %d\n", rc);
1080 		goto err_pm_put;
1081 	}
1082 
1083 	dpu_kms->mdss = msm_mdss_get_mdss_data(dpu_kms->pdev->dev.parent);
1084 	if (IS_ERR(dpu_kms->mdss)) {
1085 		rc = PTR_ERR(dpu_kms->mdss);
1086 		DPU_ERROR("failed to get MDSS data: %d\n", rc);
1087 		goto err_pm_put;
1088 	}
1089 
1090 	if (!dpu_kms->mdss) {
1091 		rc = -EINVAL;
1092 		DPU_ERROR("NULL MDSS data\n");
1093 		goto err_pm_put;
1094 	}
1095 
1096 	rc = dpu_rm_init(dev, &dpu_kms->rm, dpu_kms->catalog, dpu_kms->mdss, dpu_kms->mmio);
1097 	if (rc) {
1098 		DPU_ERROR("rm init failed: %d\n", rc);
1099 		goto err_pm_put;
1100 	}
1101 
1102 	dpu_kms->hw_mdp = dpu_hw_mdptop_init(dev,
1103 					     dpu_kms->catalog->mdp,
1104 					     dpu_kms->mmio,
1105 					     dpu_kms->catalog);
1106 	if (IS_ERR(dpu_kms->hw_mdp)) {
1107 		rc = PTR_ERR(dpu_kms->hw_mdp);
1108 		DPU_ERROR("failed to get hw_mdp: %d\n", rc);
1109 		dpu_kms->hw_mdp = NULL;
1110 		goto err_pm_put;
1111 	}
1112 
1113 	for (i = 0; i < dpu_kms->catalog->vbif_count; i++) {
1114 		struct dpu_hw_vbif *hw;
1115 		const struct dpu_vbif_cfg *vbif = &dpu_kms->catalog->vbif[i];
1116 
1117 		hw = dpu_hw_vbif_init(dev, vbif, dpu_kms->vbif[vbif->id]);
1118 		if (IS_ERR(hw)) {
1119 			rc = PTR_ERR(hw);
1120 			DPU_ERROR("failed to init vbif %d: %d\n", vbif->id, rc);
1121 			goto err_pm_put;
1122 		}
1123 
1124 		dpu_kms->hw_vbif[vbif->id] = hw;
1125 	}
1126 
1127 	/* TODO: use the same max_freq as in dpu_kms_hw_init */
1128 	max_core_clk_rate = dpu_kms_get_clk_rate(dpu_kms, "core");
1129 	if (!max_core_clk_rate) {
1130 		DPU_DEBUG("max core clk rate not determined, using default\n");
1131 		max_core_clk_rate = DPU_PERF_DEFAULT_MAX_CORE_CLK_RATE;
1132 	}
1133 
1134 	rc = dpu_core_perf_init(&dpu_kms->perf, dpu_kms->catalog->perf, max_core_clk_rate);
1135 	if (rc) {
1136 		DPU_ERROR("failed to init perf %d\n", rc);
1137 		goto err_pm_put;
1138 	}
1139 
1140 	dpu_kms->hw_intr = dpu_hw_intr_init(dev, dpu_kms->mmio, dpu_kms->catalog);
1141 	if (IS_ERR(dpu_kms->hw_intr)) {
1142 		rc = PTR_ERR(dpu_kms->hw_intr);
1143 		DPU_ERROR("hw_intr init failed: %d\n", rc);
1144 		dpu_kms->hw_intr = NULL;
1145 		goto err_pm_put;
1146 	}
1147 
1148 	dev->mode_config.min_width = 0;
1149 	dev->mode_config.min_height = 0;
1150 
1151 	/*
1152 	 * max crtc width is equal to the max mixer width * 2 and max height is
1153 	 * is 4K
1154 	 */
1155 	dev->mode_config.max_width =
1156 			dpu_kms->catalog->caps->max_mixer_width * 2;
1157 	dev->mode_config.max_height = 4096;
1158 
1159 	dev->max_vblank_count = 0xffffffff;
1160 	/* Disable vblank irqs aggressively for power-saving */
1161 	dev->vblank_disable_immediate = true;
1162 
1163 	/*
1164 	 * _dpu_kms_drm_obj_init should create the DRM related objects
1165 	 * i.e. CRTCs, planes, encoders, connectors and so forth
1166 	 */
1167 	rc = _dpu_kms_drm_obj_init(dpu_kms);
1168 	if (rc) {
1169 		DPU_ERROR("modeset init failed: %d\n", rc);
1170 		goto err_pm_put;
1171 	}
1172 
1173 	dpu_vbif_init_memtypes(dpu_kms);
1174 
1175 	pm_runtime_put_sync(&dpu_kms->pdev->dev);
1176 
1177 	return 0;
1178 
1179 err_pm_put:
1180 	pm_runtime_put_sync(&dpu_kms->pdev->dev);
1181 error:
1182 	_dpu_kms_hw_destroy(dpu_kms);
1183 
1184 	return rc;
1185 }
1186 
1187 static int dpu_kms_init(struct drm_device *ddev)
1188 {
1189 	struct msm_drm_private *priv = ddev->dev_private;
1190 	struct device *dev = ddev->dev;
1191 	struct platform_device *pdev = to_platform_device(dev);
1192 	struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms);
1193 	struct dev_pm_opp *opp;
1194 	int ret = 0;
1195 	unsigned long max_freq = ULONG_MAX;
1196 
1197 	opp = dev_pm_opp_find_freq_floor(dev, &max_freq);
1198 	if (!IS_ERR(opp))
1199 		dev_pm_opp_put(opp);
1200 
1201 	dev_pm_opp_set_rate(dev, max_freq);
1202 
1203 	ret = msm_kms_init(&dpu_kms->base, &kms_funcs);
1204 	if (ret) {
1205 		DPU_ERROR("failed to init kms, ret=%d\n", ret);
1206 		return ret;
1207 	}
1208 	dpu_kms->dev = ddev;
1209 
1210 	pm_runtime_enable(&pdev->dev);
1211 	dpu_kms->rpm_enabled = true;
1212 
1213 	return 0;
1214 }
1215 
1216 static int dpu_kms_mmap_mdp5(struct dpu_kms *dpu_kms)
1217 {
1218 	struct platform_device *pdev = dpu_kms->pdev;
1219 	struct platform_device *mdss_dev;
1220 	int ret;
1221 
1222 	if (!dev_is_platform(dpu_kms->pdev->dev.parent))
1223 		return -EINVAL;
1224 
1225 	mdss_dev = to_platform_device(dpu_kms->pdev->dev.parent);
1226 
1227 	dpu_kms->mmio = msm_ioremap(pdev, "mdp_phys");
1228 	if (IS_ERR(dpu_kms->mmio)) {
1229 		ret = PTR_ERR(dpu_kms->mmio);
1230 		DPU_ERROR("mdp register memory map failed: %d\n", ret);
1231 		dpu_kms->mmio = NULL;
1232 		return ret;
1233 	}
1234 	DRM_DEBUG("mapped dpu address space @%pK\n", dpu_kms->mmio);
1235 
1236 	dpu_kms->vbif[VBIF_RT] = msm_ioremap_mdss(mdss_dev,
1237 						  dpu_kms->pdev,
1238 						  "vbif_phys");
1239 	if (IS_ERR(dpu_kms->vbif[VBIF_RT])) {
1240 		ret = PTR_ERR(dpu_kms->vbif[VBIF_RT]);
1241 		DPU_ERROR("vbif register memory map failed: %d\n", ret);
1242 		dpu_kms->vbif[VBIF_RT] = NULL;
1243 		return ret;
1244 	}
1245 
1246 	dpu_kms->vbif[VBIF_NRT] = msm_ioremap_mdss(mdss_dev,
1247 						   dpu_kms->pdev,
1248 						   "vbif_nrt_phys");
1249 	if (IS_ERR(dpu_kms->vbif[VBIF_NRT])) {
1250 		dpu_kms->vbif[VBIF_NRT] = NULL;
1251 		DPU_DEBUG("VBIF NRT is not defined");
1252 	}
1253 
1254 	return 0;
1255 }
1256 
1257 static int dpu_kms_mmap_dpu(struct dpu_kms *dpu_kms)
1258 {
1259 	struct platform_device *pdev = dpu_kms->pdev;
1260 	int ret;
1261 
1262 	dpu_kms->mmio = msm_ioremap(pdev, "mdp");
1263 	if (IS_ERR(dpu_kms->mmio)) {
1264 		ret = PTR_ERR(dpu_kms->mmio);
1265 		DPU_ERROR("mdp register memory map failed: %d\n", ret);
1266 		dpu_kms->mmio = NULL;
1267 		return ret;
1268 	}
1269 	DRM_DEBUG("mapped dpu address space @%pK\n", dpu_kms->mmio);
1270 
1271 	dpu_kms->vbif[VBIF_RT] = msm_ioremap(pdev, "vbif");
1272 	if (IS_ERR(dpu_kms->vbif[VBIF_RT])) {
1273 		ret = PTR_ERR(dpu_kms->vbif[VBIF_RT]);
1274 		DPU_ERROR("vbif register memory map failed: %d\n", ret);
1275 		dpu_kms->vbif[VBIF_RT] = NULL;
1276 		return ret;
1277 	}
1278 
1279 	dpu_kms->vbif[VBIF_NRT] = msm_ioremap_quiet(pdev, "vbif_nrt");
1280 	if (IS_ERR(dpu_kms->vbif[VBIF_NRT])) {
1281 		dpu_kms->vbif[VBIF_NRT] = NULL;
1282 		DPU_DEBUG("VBIF NRT is not defined");
1283 	}
1284 
1285 	return 0;
1286 }
1287 
1288 static int dpu_dev_probe(struct platform_device *pdev)
1289 {
1290 	struct device *dev = &pdev->dev;
1291 	struct dpu_kms *dpu_kms;
1292 	int irq;
1293 	int ret = 0;
1294 
1295 	if (!msm_disp_drv_should_bind(&pdev->dev, true))
1296 		return -ENODEV;
1297 
1298 	dpu_kms = devm_kzalloc(dev, sizeof(*dpu_kms), GFP_KERNEL);
1299 	if (!dpu_kms)
1300 		return -ENOMEM;
1301 
1302 	dpu_kms->pdev = pdev;
1303 
1304 	ret = devm_pm_opp_set_clkname(dev, "core");
1305 	if (ret)
1306 		return ret;
1307 	/* OPP table is optional */
1308 	ret = devm_pm_opp_of_add_table(dev);
1309 	if (ret && ret != -ENODEV)
1310 		return dev_err_probe(dev, ret, "invalid OPP table in device tree\n");
1311 
1312 	ret = devm_clk_bulk_get_all(&pdev->dev, &dpu_kms->clocks);
1313 	if (ret < 0)
1314 		return dev_err_probe(dev, ret, "failed to parse clocks\n");
1315 
1316 	dpu_kms->num_clocks = ret;
1317 
1318 	irq = platform_get_irq(pdev, 0);
1319 	if (irq < 0)
1320 		return dev_err_probe(dev, irq, "failed to get irq\n");
1321 
1322 	dpu_kms->base.irq = irq;
1323 
1324 	if (of_device_is_compatible(dpu_kms->pdev->dev.of_node, "qcom,mdp5"))
1325 		ret = dpu_kms_mmap_mdp5(dpu_kms);
1326 	else
1327 		ret = dpu_kms_mmap_dpu(dpu_kms);
1328 	if (ret)
1329 		return ret;
1330 
1331 	ret = dpu_kms_parse_data_bus_icc_path(dpu_kms);
1332 	if (ret)
1333 		return ret;
1334 
1335 	return msm_drv_probe(&pdev->dev, dpu_kms_init, &dpu_kms->base);
1336 }
1337 
1338 static void dpu_dev_remove(struct platform_device *pdev)
1339 {
1340 	component_master_del(&pdev->dev, &msm_drm_ops);
1341 }
1342 
1343 static int __maybe_unused dpu_runtime_suspend(struct device *dev)
1344 {
1345 	int i;
1346 	struct platform_device *pdev = to_platform_device(dev);
1347 	struct msm_drm_private *priv = platform_get_drvdata(pdev);
1348 	struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms);
1349 
1350 	/* Drop the performance state vote */
1351 	dev_pm_opp_set_rate(dev, 0);
1352 	clk_bulk_disable_unprepare(dpu_kms->num_clocks, dpu_kms->clocks);
1353 
1354 	for (i = 0; i < dpu_kms->num_paths; i++)
1355 		icc_set_bw(dpu_kms->path[i], 0, 0);
1356 
1357 	return 0;
1358 }
1359 
1360 static int __maybe_unused dpu_runtime_resume(struct device *dev)
1361 {
1362 	int rc = -1;
1363 	struct platform_device *pdev = to_platform_device(dev);
1364 	struct msm_drm_private *priv = platform_get_drvdata(pdev);
1365 	struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms);
1366 	struct drm_encoder *encoder;
1367 	struct drm_device *ddev;
1368 
1369 	ddev = dpu_kms->dev;
1370 
1371 	rc = clk_bulk_prepare_enable(dpu_kms->num_clocks, dpu_kms->clocks);
1372 	if (rc) {
1373 		DPU_ERROR("clock enable failed rc:%d\n", rc);
1374 		return rc;
1375 	}
1376 
1377 	dpu_vbif_init_memtypes(dpu_kms);
1378 
1379 	drm_for_each_encoder(encoder, ddev)
1380 		dpu_encoder_virt_runtime_resume(encoder);
1381 
1382 	return rc;
1383 }
1384 
1385 static const struct dev_pm_ops dpu_pm_ops = {
1386 	SET_RUNTIME_PM_OPS(dpu_runtime_suspend, dpu_runtime_resume, NULL)
1387 	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1388 				pm_runtime_force_resume)
1389 	.prepare = msm_kms_pm_prepare,
1390 	.complete = msm_kms_pm_complete,
1391 };
1392 
1393 static const struct of_device_id dpu_dt_match[] = {
1394 	{ .compatible = "qcom,msm8998-dpu", .data = &dpu_msm8998_cfg, },
1395 	{ .compatible = "qcom,qcm2290-dpu", .data = &dpu_qcm2290_cfg, },
1396 	{ .compatible = "qcom,sdm630-mdp5", .data = &dpu_sdm630_cfg, },
1397 	{ .compatible = "qcom,sdm660-mdp5", .data = &dpu_sdm660_cfg, },
1398 	{ .compatible = "qcom,sdm670-dpu", .data = &dpu_sdm670_cfg, },
1399 	{ .compatible = "qcom,sdm845-dpu", .data = &dpu_sdm845_cfg, },
1400 	{ .compatible = "qcom,sc7180-dpu", .data = &dpu_sc7180_cfg, },
1401 	{ .compatible = "qcom,sc7280-dpu", .data = &dpu_sc7280_cfg, },
1402 	{ .compatible = "qcom,sc8180x-dpu", .data = &dpu_sc8180x_cfg, },
1403 	{ .compatible = "qcom,sc8280xp-dpu", .data = &dpu_sc8280xp_cfg, },
1404 	{ .compatible = "qcom,sm6115-dpu", .data = &dpu_sm6115_cfg, },
1405 	{ .compatible = "qcom,sm6125-dpu", .data = &dpu_sm6125_cfg, },
1406 	{ .compatible = "qcom,sm6350-dpu", .data = &dpu_sm6350_cfg, },
1407 	{ .compatible = "qcom,sm6375-dpu", .data = &dpu_sm6375_cfg, },
1408 	{ .compatible = "qcom,sm8150-dpu", .data = &dpu_sm8150_cfg, },
1409 	{ .compatible = "qcom,sm8250-dpu", .data = &dpu_sm8250_cfg, },
1410 	{ .compatible = "qcom,sm8350-dpu", .data = &dpu_sm8350_cfg, },
1411 	{ .compatible = "qcom,sm8450-dpu", .data = &dpu_sm8450_cfg, },
1412 	{ .compatible = "qcom,sm8550-dpu", .data = &dpu_sm8550_cfg, },
1413 	{ .compatible = "qcom,sm8650-dpu", .data = &dpu_sm8650_cfg, },
1414 	{ .compatible = "qcom,x1e80100-dpu", .data = &dpu_x1e80100_cfg, },
1415 	{}
1416 };
1417 MODULE_DEVICE_TABLE(of, dpu_dt_match);
1418 
1419 static struct platform_driver dpu_driver = {
1420 	.probe = dpu_dev_probe,
1421 	.remove_new = dpu_dev_remove,
1422 	.shutdown = msm_kms_shutdown,
1423 	.driver = {
1424 		.name = "msm_dpu",
1425 		.of_match_table = dpu_dt_match,
1426 		.pm = &dpu_pm_ops,
1427 	},
1428 };
1429 
1430 void __init msm_dpu_register(void)
1431 {
1432 	platform_driver_register(&dpu_driver);
1433 }
1434 
1435 void __exit msm_dpu_unregister(void)
1436 {
1437 	platform_driver_unregister(&dpu_driver);
1438 }
1439