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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (c) 2021 MediaTek Inc.
4 */
5
6#include <drm/drm_fourcc.h>
7#include <drm/drm_of.h>
8#include <linux/clk.h>
9#include <linux/component.h>
10#include <linux/of.h>
11#include <linux/of_address.h>
12#include <linux/of_platform.h>
13#include <linux/platform_device.h>
14#include <linux/pm_runtime.h>
15#include <linux/reset.h>
16#include <linux/soc/mediatek/mtk-cmdq.h>
17#include <linux/soc/mediatek/mtk-mmsys.h>
18#include <linux/soc/mediatek/mtk-mutex.h>
19
20#include "mtk_disp_drv.h"
21#include "mtk_drm_crtc.h"
22#include "mtk_drm_ddp_comp.h"
23#include "mtk_drm_drv.h"
24#include "mtk_ethdr.h"
25
26#define MTK_OVL_ADAPTOR_RDMA_MAX_WIDTH 1920
27#define MTK_OVL_ADAPTOR_LAYER_NUM 4
28
29enum mtk_ovl_adaptor_comp_type {
30 OVL_ADAPTOR_TYPE_ETHDR,
31 OVL_ADAPTOR_TYPE_MDP_RDMA,
32 OVL_ADAPTOR_TYPE_MERGE,
33 OVL_ADAPTOR_TYPE_PADDING,
34 OVL_ADAPTOR_TYPE_NUM,
35};
36
37enum mtk_ovl_adaptor_comp_id {
38 OVL_ADAPTOR_ETHDR0,
39 OVL_ADAPTOR_MDP_RDMA0,
40 OVL_ADAPTOR_MDP_RDMA1,
41 OVL_ADAPTOR_MDP_RDMA2,
42 OVL_ADAPTOR_MDP_RDMA3,
43 OVL_ADAPTOR_MDP_RDMA4,
44 OVL_ADAPTOR_MDP_RDMA5,
45 OVL_ADAPTOR_MDP_RDMA6,
46 OVL_ADAPTOR_MDP_RDMA7,
47 OVL_ADAPTOR_MERGE0,
48 OVL_ADAPTOR_MERGE1,
49 OVL_ADAPTOR_MERGE2,
50 OVL_ADAPTOR_MERGE3,
51 OVL_ADAPTOR_PADDING0,
52 OVL_ADAPTOR_PADDING1,
53 OVL_ADAPTOR_PADDING2,
54 OVL_ADAPTOR_PADDING3,
55 OVL_ADAPTOR_PADDING4,
56 OVL_ADAPTOR_PADDING5,
57 OVL_ADAPTOR_PADDING6,
58 OVL_ADAPTOR_PADDING7,
59 OVL_ADAPTOR_ID_MAX
60};
61
62struct ovl_adaptor_comp_match {
63 enum mtk_ovl_adaptor_comp_type type;
64 enum mtk_ddp_comp_id comp_id;
65 int alias_id;
66 const struct mtk_ddp_comp_funcs *funcs;
67};
68
69struct mtk_disp_ovl_adaptor {
70 struct device *ovl_adaptor_comp[OVL_ADAPTOR_ID_MAX];
71 struct device *mmsys_dev;
72 bool children_bound;
73};
74
75static const char * const private_comp_stem[OVL_ADAPTOR_TYPE_NUM] = {
76 [OVL_ADAPTOR_TYPE_ETHDR] = "ethdr",
77 [OVL_ADAPTOR_TYPE_MDP_RDMA] = "vdo1-rdma",
78 [OVL_ADAPTOR_TYPE_MERGE] = "merge",
79 [OVL_ADAPTOR_TYPE_PADDING] = "padding",
80};
81
82static const struct mtk_ddp_comp_funcs ethdr = {
83 .clk_enable = mtk_ethdr_clk_enable,
84 .clk_disable = mtk_ethdr_clk_disable,
85 .start = mtk_ethdr_start,
86 .stop = mtk_ethdr_stop,
87};
88
89static const struct mtk_ddp_comp_funcs merge = {
90 .clk_enable = mtk_merge_clk_enable,
91 .clk_disable = mtk_merge_clk_disable,
92 .mode_valid = mtk_merge_mode_valid,
93};
94
95static const struct mtk_ddp_comp_funcs padding = {
96 .clk_enable = mtk_padding_clk_enable,
97 .clk_disable = mtk_padding_clk_disable,
98 .start = mtk_padding_start,
99 .stop = mtk_padding_stop,
100};
101
102static const struct mtk_ddp_comp_funcs rdma = {
103 .power_on = mtk_mdp_rdma_power_on,
104 .power_off = mtk_mdp_rdma_power_off,
105 .clk_enable = mtk_mdp_rdma_clk_enable,
106 .clk_disable = mtk_mdp_rdma_clk_disable,
107};
108
109static const struct ovl_adaptor_comp_match comp_matches[OVL_ADAPTOR_ID_MAX] = {
110 [OVL_ADAPTOR_ETHDR0] = { OVL_ADAPTOR_TYPE_ETHDR, DDP_COMPONENT_ETHDR_MIXER, 0, ðdr },
111 [OVL_ADAPTOR_MDP_RDMA0] = { OVL_ADAPTOR_TYPE_MDP_RDMA, DDP_COMPONENT_MDP_RDMA0, 0, &rdma },
112 [OVL_ADAPTOR_MDP_RDMA1] = { OVL_ADAPTOR_TYPE_MDP_RDMA, DDP_COMPONENT_MDP_RDMA1, 1, &rdma },
113 [OVL_ADAPTOR_MDP_RDMA2] = { OVL_ADAPTOR_TYPE_MDP_RDMA, DDP_COMPONENT_MDP_RDMA2, 2, &rdma },
114 [OVL_ADAPTOR_MDP_RDMA3] = { OVL_ADAPTOR_TYPE_MDP_RDMA, DDP_COMPONENT_MDP_RDMA3, 3, &rdma },
115 [OVL_ADAPTOR_MDP_RDMA4] = { OVL_ADAPTOR_TYPE_MDP_RDMA, DDP_COMPONENT_MDP_RDMA4, 4, &rdma },
116 [OVL_ADAPTOR_MDP_RDMA5] = { OVL_ADAPTOR_TYPE_MDP_RDMA, DDP_COMPONENT_MDP_RDMA5, 5, &rdma },
117 [OVL_ADAPTOR_MDP_RDMA6] = { OVL_ADAPTOR_TYPE_MDP_RDMA, DDP_COMPONENT_MDP_RDMA6, 6, &rdma },
118 [OVL_ADAPTOR_MDP_RDMA7] = { OVL_ADAPTOR_TYPE_MDP_RDMA, DDP_COMPONENT_MDP_RDMA7, 7, &rdma },
119 [OVL_ADAPTOR_MERGE0] = { OVL_ADAPTOR_TYPE_MERGE, DDP_COMPONENT_MERGE1, 1, &merge },
120 [OVL_ADAPTOR_MERGE1] = { OVL_ADAPTOR_TYPE_MERGE, DDP_COMPONENT_MERGE2, 2, &merge },
121 [OVL_ADAPTOR_MERGE2] = { OVL_ADAPTOR_TYPE_MERGE, DDP_COMPONENT_MERGE3, 3, &merge },
122 [OVL_ADAPTOR_MERGE3] = { OVL_ADAPTOR_TYPE_MERGE, DDP_COMPONENT_MERGE4, 4, &merge },
123 [OVL_ADAPTOR_PADDING0] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING0, 0, &padding },
124 [OVL_ADAPTOR_PADDING1] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING1, 1, &padding },
125 [OVL_ADAPTOR_PADDING2] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING2, 2, &padding },
126 [OVL_ADAPTOR_PADDING3] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING3, 3, &padding },
127 [OVL_ADAPTOR_PADDING4] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING4, 4, &padding },
128 [OVL_ADAPTOR_PADDING5] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING5, 5, &padding },
129 [OVL_ADAPTOR_PADDING6] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING6, 6, &padding },
130 [OVL_ADAPTOR_PADDING7] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING7, 7, &padding },
131};
132
133void mtk_ovl_adaptor_layer_config(struct device *dev, unsigned int idx,
134 struct mtk_plane_state *state,
135 struct cmdq_pkt *cmdq_pkt)
136{
137 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
138 struct mtk_plane_pending_state *pending = &state->pending;
139 struct mtk_mdp_rdma_cfg rdma_config = {0};
140 struct device *rdma_l;
141 struct device *rdma_r;
142 struct device *merge;
143 struct device *ethdr;
144 const struct drm_format_info *fmt_info = drm_format_info(pending->format);
145 bool use_dual_pipe = false;
146 unsigned int align_width;
147 unsigned int l_w = 0;
148 unsigned int r_w = 0;
149
150 dev_dbg(dev, "%s+ idx:%d, enable:%d, fmt:0x%x\n", __func__, idx,
151 pending->enable, pending->format);
152 dev_dbg(dev, "addr 0x%pad, fb w:%d, {%d,%d,%d,%d}\n",
153 &pending->addr, (pending->pitch / fmt_info->cpp[0]),
154 pending->x, pending->y, pending->width, pending->height);
155
156 rdma_l = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MDP_RDMA0 + 2 * idx];
157 rdma_r = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MDP_RDMA0 + 2 * idx + 1];
158 merge = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MERGE0 + idx];
159 ethdr = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0];
160
161 if (!pending->enable) {
162 mtk_merge_stop_cmdq(merge, cmdq_pkt);
163 mtk_mdp_rdma_stop(rdma_l, cmdq_pkt);
164 mtk_mdp_rdma_stop(rdma_r, cmdq_pkt);
165 mtk_ethdr_layer_config(ethdr, idx, state, cmdq_pkt);
166 return;
167 }
168
169 /* ETHDR is in 1T2P domain, width needs to be 2 pixels align */
170 align_width = ALIGN_DOWN(pending->width, 2);
171
172 if (align_width > MTK_OVL_ADAPTOR_RDMA_MAX_WIDTH)
173 use_dual_pipe = true;
174
175 if (use_dual_pipe) {
176 l_w = (align_width / 2) + ((pending->width / 2) % 2);
177 r_w = align_width - l_w;
178 } else {
179 l_w = align_width;
180 }
181 mtk_merge_advance_config(merge, l_w, r_w, pending->height, 0, 0, cmdq_pkt);
182 mtk_mmsys_merge_async_config(ovl_adaptor->mmsys_dev, idx, align_width / 2,
183 pending->height, cmdq_pkt);
184
185 rdma_config.width = l_w;
186 rdma_config.height = pending->height;
187 rdma_config.addr0 = pending->addr;
188 rdma_config.pitch = pending->pitch;
189 rdma_config.fmt = pending->format;
190 rdma_config.color_encoding = pending->color_encoding;
191 mtk_mdp_rdma_config(rdma_l, &rdma_config, cmdq_pkt);
192
193 if (use_dual_pipe) {
194 rdma_config.x_left = l_w;
195 rdma_config.width = r_w;
196 mtk_mdp_rdma_config(rdma_r, &rdma_config, cmdq_pkt);
197 }
198
199 mtk_merge_start_cmdq(merge, cmdq_pkt);
200
201 mtk_mdp_rdma_start(rdma_l, cmdq_pkt);
202 if (use_dual_pipe)
203 mtk_mdp_rdma_start(rdma_r, cmdq_pkt);
204 else
205 mtk_mdp_rdma_stop(rdma_r, cmdq_pkt);
206
207 mtk_ethdr_layer_config(ethdr, idx, state, cmdq_pkt);
208}
209
210void mtk_ovl_adaptor_config(struct device *dev, unsigned int w,
211 unsigned int h, unsigned int vrefresh,
212 unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
213{
214 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
215
216 mtk_ethdr_config(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0], w, h,
217 vrefresh, bpc, cmdq_pkt);
218}
219
220void mtk_ovl_adaptor_start(struct device *dev)
221{
222 int i;
223 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
224
225 for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {
226 if (!ovl_adaptor->ovl_adaptor_comp[i] ||
227 !comp_matches[i].funcs->start)
228 continue;
229
230 comp_matches[i].funcs->start(ovl_adaptor->ovl_adaptor_comp[i]);
231 }
232}
233
234void mtk_ovl_adaptor_stop(struct device *dev)
235{
236 int i;
237 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
238
239 for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {
240 if (!ovl_adaptor->ovl_adaptor_comp[i] ||
241 !comp_matches[i].funcs->stop)
242 continue;
243
244 comp_matches[i].funcs->stop(ovl_adaptor->ovl_adaptor_comp[i]);
245 }
246}
247
248/**
249 * power_off - Power off the devices in OVL adaptor
250 * @dev: Device to be powered off
251 * @num: Number of the devices to be powered off
252 *
253 * Calls the .power_off() ovl_adaptor component callback if it is present.
254 */
255static inline void power_off(struct device *dev, int num)
256{
257 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
258 int i;
259
260 if (num > OVL_ADAPTOR_ID_MAX)
261 num = OVL_ADAPTOR_ID_MAX;
262
263 for (i = num - 1; i >= 0; i--) {
264 if (!ovl_adaptor->ovl_adaptor_comp[i] ||
265 !comp_matches[i].funcs->power_off)
266 continue;
267
268 comp_matches[i].funcs->power_off(ovl_adaptor->ovl_adaptor_comp[i]);
269 }
270}
271
272/**
273 * mtk_ovl_adaptor_power_on - Power on the devices in OVL adaptor
274 * @dev: Device to be powered on
275 *
276 * Different from OVL, OVL adaptor is a pseudo device so
277 * we didn't define it in the device tree, pm_runtime_resume_and_get()
278 * called by .atomic_enable() power on no device in OVL adaptor,
279 * we have to implement a function to do the job instead.
280 *
281 * Return: Zero for success or negative number for failure.
282 */
283int mtk_ovl_adaptor_power_on(struct device *dev)
284{
285 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
286 int i, ret;
287
288 for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {
289 if (!ovl_adaptor->ovl_adaptor_comp[i] ||
290 !comp_matches[i].funcs->power_on)
291 continue;
292
293 ret = comp_matches[i].funcs->power_on(ovl_adaptor->ovl_adaptor_comp[i]);
294 if (ret < 0) {
295 dev_err(dev, "Failed to enable power domain %d, err %d\n", i, ret);
296 power_off(dev, i);
297 return ret;
298 }
299 }
300 return 0;
301}
302
303void mtk_ovl_adaptor_power_off(struct device *dev)
304{
305 power_off(dev, OVL_ADAPTOR_ID_MAX);
306}
307
308int mtk_ovl_adaptor_clk_enable(struct device *dev)
309{
310 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
311 struct device *comp;
312 int ret;
313 int i;
314
315 for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {
316 comp = ovl_adaptor->ovl_adaptor_comp[i];
317 if (!comp || !comp_matches[i].funcs->clk_enable)
318 continue;
319 ret = comp_matches[i].funcs->clk_enable(comp);
320 if (ret) {
321 dev_err(dev, "Failed to enable clock %d, err %d\n", i, ret);
322 while (--i >= 0)
323 comp_matches[i].funcs->clk_disable(comp);
324 return ret;
325 }
326 }
327 return 0;
328}
329
330void mtk_ovl_adaptor_clk_disable(struct device *dev)
331{
332 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
333 struct device *comp;
334 int i;
335
336 for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {
337 comp = ovl_adaptor->ovl_adaptor_comp[i];
338 if (!comp || !comp_matches[i].funcs->clk_disable)
339 continue;
340 comp_matches[i].funcs->clk_disable(comp);
341 if (i < OVL_ADAPTOR_MERGE0)
342 pm_runtime_put(comp);
343 }
344}
345
346enum drm_mode_status mtk_ovl_adaptor_mode_valid(struct device *dev,
347 const struct drm_display_mode *mode)
348
349{
350 int i;
351 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
352
353 for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {
354 dev = ovl_adaptor->ovl_adaptor_comp[i];
355 if (!dev || !comp_matches[i].funcs->mode_valid)
356 continue;
357 return comp_matches[i].funcs->mode_valid(dev, mode);
358 }
359 return MODE_OK;
360}
361
362unsigned int mtk_ovl_adaptor_layer_nr(struct device *dev)
363{
364 return MTK_OVL_ADAPTOR_LAYER_NUM;
365}
366
367struct device *mtk_ovl_adaptor_dma_dev_get(struct device *dev)
368{
369 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
370
371 return ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MDP_RDMA0];
372}
373
374void mtk_ovl_adaptor_register_vblank_cb(struct device *dev, void (*vblank_cb)(void *),
375 void *vblank_cb_data)
376{
377 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
378
379 mtk_ethdr_register_vblank_cb(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0],
380 vblank_cb, vblank_cb_data);
381}
382
383void mtk_ovl_adaptor_unregister_vblank_cb(struct device *dev)
384{
385 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
386
387 mtk_ethdr_unregister_vblank_cb(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0]);
388}
389
390void mtk_ovl_adaptor_enable_vblank(struct device *dev)
391{
392 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
393
394 mtk_ethdr_enable_vblank(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0]);
395}
396
397void mtk_ovl_adaptor_disable_vblank(struct device *dev)
398{
399 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
400
401 mtk_ethdr_disable_vblank(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0]);
402}
403
404const u32 *mtk_ovl_adaptor_get_formats(struct device *dev)
405{
406 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
407
408 return mtk_mdp_rdma_get_formats(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MDP_RDMA0]);
409}
410
411size_t mtk_ovl_adaptor_get_num_formats(struct device *dev)
412{
413 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
414
415 return mtk_mdp_rdma_get_num_formats(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MDP_RDMA0]);
416}
417
418void mtk_ovl_adaptor_add_comp(struct device *dev, struct mtk_mutex *mutex)
419{
420 int i;
421 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
422
423 for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {
424 if (!ovl_adaptor->ovl_adaptor_comp[i])
425 continue;
426 mtk_mutex_add_comp(mutex, comp_matches[i].comp_id);
427 }
428}
429
430void mtk_ovl_adaptor_remove_comp(struct device *dev, struct mtk_mutex *mutex)
431{
432 int i;
433 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);
434
435 for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {
436 if (!ovl_adaptor->ovl_adaptor_comp[i])
437 continue;
438 mtk_mutex_remove_comp(mutex, comp_matches[i].comp_id);
439 }
440}
441
442void mtk_ovl_adaptor_connect(struct device *dev, struct device *mmsys_dev, unsigned int next)
443{
444 mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_ETHDR_MIXER, next);
445 mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MDP_RDMA0, DDP_COMPONENT_MERGE1);
446 mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MDP_RDMA1, DDP_COMPONENT_MERGE1);
447 mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MDP_RDMA2, DDP_COMPONENT_MERGE2);
448 mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MERGE1, DDP_COMPONENT_ETHDR_MIXER);
449 mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MERGE2, DDP_COMPONENT_ETHDR_MIXER);
450 mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MERGE3, DDP_COMPONENT_ETHDR_MIXER);
451 mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MERGE4, DDP_COMPONENT_ETHDR_MIXER);
452}
453
454void mtk_ovl_adaptor_disconnect(struct device *dev, struct device *mmsys_dev, unsigned int next)
455{
456 mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_ETHDR_MIXER, next);
457 mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MDP_RDMA0, DDP_COMPONENT_MERGE1);
458 mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MDP_RDMA1, DDP_COMPONENT_MERGE1);
459 mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MDP_RDMA2, DDP_COMPONENT_MERGE2);
460 mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MERGE1, DDP_COMPONENT_ETHDR_MIXER);
461 mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MERGE2, DDP_COMPONENT_ETHDR_MIXER);
462 mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MERGE3, DDP_COMPONENT_ETHDR_MIXER);
463 mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MERGE4, DDP_COMPONENT_ETHDR_MIXER);
464}
465
466static int ovl_adaptor_comp_get_id(struct device *dev, struct device_node *node,
467 enum mtk_ovl_adaptor_comp_type type)
468{
469 int alias_id = of_alias_get_id(node, private_comp_stem[type]);
470 int i;
471
472 for (i = 0; i < ARRAY_SIZE(comp_matches); i++)
473 if (comp_matches[i].type == type &&
474 comp_matches[i].alias_id == alias_id)
475 return i;
476
477 dev_warn(dev, "Failed to get id. type: %d, alias: %d\n", type, alias_id);
478 return -EINVAL;
479}
480
481static const struct of_device_id mtk_ovl_adaptor_comp_dt_ids[] = {
482 { .compatible = "mediatek,mt8188-disp-padding", .data = (void *)OVL_ADAPTOR_TYPE_PADDING },
483 { .compatible = "mediatek,mt8195-disp-ethdr", .data = (void *)OVL_ADAPTOR_TYPE_ETHDR },
484 { .compatible = "mediatek,mt8195-disp-merge", .data = (void *)OVL_ADAPTOR_TYPE_MERGE },
485 { .compatible = "mediatek,mt8195-vdo1-rdma", .data = (void *)OVL_ADAPTOR_TYPE_MDP_RDMA },
486 { /* sentinel */ }
487};
488
489static int compare_of(struct device *dev, void *data)
490{
491 return dev->of_node == data;
492}
493
494static int ovl_adaptor_comp_init(struct device *dev, struct component_match **match)
495{
496 struct mtk_disp_ovl_adaptor *priv = dev_get_drvdata(dev);
497 struct device_node *node, *parent;
498 struct platform_device *comp_pdev;
499
500 parent = dev->parent->parent->of_node->parent;
501
502 for_each_child_of_node(parent, node) {
503 const struct of_device_id *of_id;
504 enum mtk_ovl_adaptor_comp_type type;
505 int id;
506
507 of_id = of_match_node(mtk_ovl_adaptor_comp_dt_ids, node);
508 if (!of_id)
509 continue;
510
511 if (!of_device_is_available(node)) {
512 dev_dbg(dev, "Skipping disabled component %pOF\n",
513 node);
514 continue;
515 }
516
517 type = (enum mtk_ovl_adaptor_comp_type)(uintptr_t)of_id->data;
518 id = ovl_adaptor_comp_get_id(dev, node, type);
519 if (id < 0) {
520 dev_warn(dev, "Skipping unknown component %pOF\n",
521 node);
522 continue;
523 }
524
525 comp_pdev = of_find_device_by_node(node);
526 if (!comp_pdev)
527 return -EPROBE_DEFER;
528
529 priv->ovl_adaptor_comp[id] = &comp_pdev->dev;
530
531 drm_of_component_match_add(dev, match, compare_of, node);
532 dev_dbg(dev, "Adding component match for %pOF\n", node);
533 }
534
535 if (!*match) {
536 dev_err(dev, "No match device for ovl_adaptor\n");
537 return -ENODEV;
538 }
539
540 return 0;
541}
542
543static int mtk_disp_ovl_adaptor_comp_bind(struct device *dev, struct device *master,
544 void *data)
545{
546 struct mtk_disp_ovl_adaptor *priv = dev_get_drvdata(dev);
547
548 if (!priv->children_bound)
549 return -EPROBE_DEFER;
550
551 return 0;
552}
553
554static void mtk_disp_ovl_adaptor_comp_unbind(struct device *dev, struct device *master,
555 void *data)
556{
557}
558
559static const struct component_ops mtk_disp_ovl_adaptor_comp_ops = {
560 .bind = mtk_disp_ovl_adaptor_comp_bind,
561 .unbind = mtk_disp_ovl_adaptor_comp_unbind,
562};
563
564static int mtk_disp_ovl_adaptor_master_bind(struct device *dev)
565{
566 struct mtk_disp_ovl_adaptor *priv = dev_get_drvdata(dev);
567 int ret;
568
569 ret = component_bind_all(dev, priv->mmsys_dev);
570 if (ret)
571 return dev_err_probe(dev, ret, "component_bind_all failed!\n");
572
573 priv->children_bound = true;
574 return 0;
575}
576
577static void mtk_disp_ovl_adaptor_master_unbind(struct device *dev)
578{
579 struct mtk_disp_ovl_adaptor *priv = dev_get_drvdata(dev);
580
581 priv->children_bound = false;
582}
583
584static const struct component_master_ops mtk_disp_ovl_adaptor_master_ops = {
585 .bind = mtk_disp_ovl_adaptor_master_bind,
586 .unbind = mtk_disp_ovl_adaptor_master_unbind,
587};
588
589static int mtk_disp_ovl_adaptor_probe(struct platform_device *pdev)
590{
591 struct mtk_disp_ovl_adaptor *priv;
592 struct device *dev = &pdev->dev;
593 struct component_match *match = NULL;
594 int ret;
595
596 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
597 if (!priv)
598 return -ENOMEM;
599
600 platform_set_drvdata(pdev, priv);
601
602 ret = ovl_adaptor_comp_init(dev, &match);
603 if (ret < 0)
604 return ret;
605
606 priv->mmsys_dev = pdev->dev.platform_data;
607
608 component_master_add_with_match(dev, &mtk_disp_ovl_adaptor_master_ops, match);
609
610 pm_runtime_enable(dev);
611
612 ret = component_add(dev, &mtk_disp_ovl_adaptor_comp_ops);
613 if (ret != 0) {
614 pm_runtime_disable(dev);
615 dev_err(dev, "Failed to add component: %d\n", ret);
616 }
617
618 return ret;
619}
620
621static void mtk_disp_ovl_adaptor_remove(struct platform_device *pdev)
622{
623 component_master_del(&pdev->dev, &mtk_disp_ovl_adaptor_master_ops);
624 pm_runtime_disable(&pdev->dev);
625}
626
627struct platform_driver mtk_disp_ovl_adaptor_driver = {
628 .probe = mtk_disp_ovl_adaptor_probe,
629 .remove_new = mtk_disp_ovl_adaptor_remove,
630 .driver = {
631 .name = "mediatek-disp-ovl-adaptor",
632 .owner = THIS_MODULE,
633 },
634};