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1// SPDX-License-Identifier: GPL-2.0-only2/*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_ddp_comp.h"21#include "mtk_disp_drv.h"22#include "mtk_drm_drv.h"23#include "mtk_ethdr.h"24 25#define MTK_OVL_ADAPTOR_RDMA_MAX_WIDTH 192026#define MTK_OVL_ADAPTOR_LAYER_NUM 427 28enum mtk_ovl_adaptor_comp_type {29 OVL_ADAPTOR_TYPE_ETHDR,30 OVL_ADAPTOR_TYPE_MDP_RDMA,31 OVL_ADAPTOR_TYPE_MERGE,32 OVL_ADAPTOR_TYPE_PADDING,33 OVL_ADAPTOR_TYPE_NUM,34};35 36enum mtk_ovl_adaptor_comp_id {37 OVL_ADAPTOR_ETHDR0,38 OVL_ADAPTOR_MDP_RDMA0,39 OVL_ADAPTOR_MDP_RDMA1,40 OVL_ADAPTOR_MDP_RDMA2,41 OVL_ADAPTOR_MDP_RDMA3,42 OVL_ADAPTOR_MDP_RDMA4,43 OVL_ADAPTOR_MDP_RDMA5,44 OVL_ADAPTOR_MDP_RDMA6,45 OVL_ADAPTOR_MDP_RDMA7,46 OVL_ADAPTOR_MERGE0,47 OVL_ADAPTOR_MERGE1,48 OVL_ADAPTOR_MERGE2,49 OVL_ADAPTOR_MERGE3,50 OVL_ADAPTOR_PADDING0,51 OVL_ADAPTOR_PADDING1,52 OVL_ADAPTOR_PADDING2,53 OVL_ADAPTOR_PADDING3,54 OVL_ADAPTOR_PADDING4,55 OVL_ADAPTOR_PADDING5,56 OVL_ADAPTOR_PADDING6,57 OVL_ADAPTOR_PADDING7,58 OVL_ADAPTOR_ID_MAX59};60 61struct ovl_adaptor_comp_match {62 enum mtk_ovl_adaptor_comp_type type;63 enum mtk_ddp_comp_id comp_id;64 int alias_id;65 const struct mtk_ddp_comp_funcs *funcs;66};67 68struct mtk_disp_ovl_adaptor {69 struct device *ovl_adaptor_comp[OVL_ADAPTOR_ID_MAX];70 struct device *mmsys_dev;71 bool children_bound;72};73 74static const char * const private_comp_stem[OVL_ADAPTOR_TYPE_NUM] = {75 [OVL_ADAPTOR_TYPE_ETHDR] = "ethdr",76 [OVL_ADAPTOR_TYPE_MDP_RDMA] = "vdo1-rdma",77 [OVL_ADAPTOR_TYPE_MERGE] = "merge",78 [OVL_ADAPTOR_TYPE_PADDING] = "padding",79};80 81static const struct mtk_ddp_comp_funcs ethdr = {82 .clk_enable = mtk_ethdr_clk_enable,83 .clk_disable = mtk_ethdr_clk_disable,84 .start = mtk_ethdr_start,85 .stop = mtk_ethdr_stop,86};87 88static const struct mtk_ddp_comp_funcs merge = {89 .clk_enable = mtk_merge_clk_enable,90 .clk_disable = mtk_merge_clk_disable,91 .mode_valid = mtk_merge_mode_valid,92};93 94static const struct mtk_ddp_comp_funcs padding = {95 .clk_enable = mtk_padding_clk_enable,96 .clk_disable = mtk_padding_clk_disable,97 .start = mtk_padding_start,98 .stop = mtk_padding_stop,99};100 101static const struct mtk_ddp_comp_funcs rdma = {102 .power_on = mtk_mdp_rdma_power_on,103 .power_off = mtk_mdp_rdma_power_off,104 .clk_enable = mtk_mdp_rdma_clk_enable,105 .clk_disable = mtk_mdp_rdma_clk_disable,106};107 108static const struct ovl_adaptor_comp_match comp_matches[OVL_ADAPTOR_ID_MAX] = {109 [OVL_ADAPTOR_ETHDR0] = { OVL_ADAPTOR_TYPE_ETHDR, DDP_COMPONENT_ETHDR_MIXER, 0, ðdr },110 [OVL_ADAPTOR_MDP_RDMA0] = { OVL_ADAPTOR_TYPE_MDP_RDMA, DDP_COMPONENT_MDP_RDMA0, 0, &rdma },111 [OVL_ADAPTOR_MDP_RDMA1] = { OVL_ADAPTOR_TYPE_MDP_RDMA, DDP_COMPONENT_MDP_RDMA1, 1, &rdma },112 [OVL_ADAPTOR_MDP_RDMA2] = { OVL_ADAPTOR_TYPE_MDP_RDMA, DDP_COMPONENT_MDP_RDMA2, 2, &rdma },113 [OVL_ADAPTOR_MDP_RDMA3] = { OVL_ADAPTOR_TYPE_MDP_RDMA, DDP_COMPONENT_MDP_RDMA3, 3, &rdma },114 [OVL_ADAPTOR_MDP_RDMA4] = { OVL_ADAPTOR_TYPE_MDP_RDMA, DDP_COMPONENT_MDP_RDMA4, 4, &rdma },115 [OVL_ADAPTOR_MDP_RDMA5] = { OVL_ADAPTOR_TYPE_MDP_RDMA, DDP_COMPONENT_MDP_RDMA5, 5, &rdma },116 [OVL_ADAPTOR_MDP_RDMA6] = { OVL_ADAPTOR_TYPE_MDP_RDMA, DDP_COMPONENT_MDP_RDMA6, 6, &rdma },117 [OVL_ADAPTOR_MDP_RDMA7] = { OVL_ADAPTOR_TYPE_MDP_RDMA, DDP_COMPONENT_MDP_RDMA7, 7, &rdma },118 [OVL_ADAPTOR_MERGE0] = { OVL_ADAPTOR_TYPE_MERGE, DDP_COMPONENT_MERGE1, 1, &merge },119 [OVL_ADAPTOR_MERGE1] = { OVL_ADAPTOR_TYPE_MERGE, DDP_COMPONENT_MERGE2, 2, &merge },120 [OVL_ADAPTOR_MERGE2] = { OVL_ADAPTOR_TYPE_MERGE, DDP_COMPONENT_MERGE3, 3, &merge },121 [OVL_ADAPTOR_MERGE3] = { OVL_ADAPTOR_TYPE_MERGE, DDP_COMPONENT_MERGE4, 4, &merge },122 [OVL_ADAPTOR_PADDING0] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING0, 0, &padding },123 [OVL_ADAPTOR_PADDING1] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING1, 1, &padding },124 [OVL_ADAPTOR_PADDING2] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING2, 2, &padding },125 [OVL_ADAPTOR_PADDING3] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING3, 3, &padding },126 [OVL_ADAPTOR_PADDING4] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING4, 4, &padding },127 [OVL_ADAPTOR_PADDING5] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING5, 5, &padding },128 [OVL_ADAPTOR_PADDING6] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING6, 6, &padding },129 [OVL_ADAPTOR_PADDING7] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING7, 7, &padding },130};131 132void mtk_ovl_adaptor_layer_config(struct device *dev, unsigned int idx,133 struct mtk_plane_state *state,134 struct cmdq_pkt *cmdq_pkt)135{136 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);137 struct mtk_plane_pending_state *pending = &state->pending;138 struct mtk_mdp_rdma_cfg rdma_config = {0};139 struct device *rdma_l;140 struct device *rdma_r;141 struct device *merge;142 struct device *ethdr;143 const struct drm_format_info *fmt_info = drm_format_info(pending->format);144 bool use_dual_pipe = false;145 unsigned int align_width;146 unsigned int l_w = 0;147 unsigned int r_w = 0;148 149 dev_dbg(dev, "%s+ idx:%d, enable:%d, fmt:0x%x\n", __func__, idx,150 pending->enable, pending->format);151 dev_dbg(dev, "addr 0x%pad, fb w:%d, {%d,%d,%d,%d}\n",152 &pending->addr, (pending->pitch / fmt_info->cpp[0]),153 pending->x, pending->y, pending->width, pending->height);154 155 rdma_l = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MDP_RDMA0 + 2 * idx];156 rdma_r = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MDP_RDMA0 + 2 * idx + 1];157 merge = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MERGE0 + idx];158 ethdr = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0];159 160 if (!pending->enable || !pending->width || !pending->height) {161 mtk_merge_stop_cmdq(merge, cmdq_pkt);162 mtk_mdp_rdma_stop(rdma_l, cmdq_pkt);163 mtk_mdp_rdma_stop(rdma_r, cmdq_pkt);164 mtk_ethdr_layer_config(ethdr, idx, state, cmdq_pkt);165 return;166 }167 168 /* ETHDR is in 1T2P domain, width needs to be 2 pixels align */169 align_width = ALIGN_DOWN(pending->width, 2);170 171 if (align_width > MTK_OVL_ADAPTOR_RDMA_MAX_WIDTH)172 use_dual_pipe = true;173 174 if (use_dual_pipe) {175 l_w = (align_width / 2) + ((pending->width / 2) % 2);176 r_w = align_width - l_w;177 } else {178 l_w = align_width;179 }180 mtk_merge_advance_config(merge, l_w, r_w, pending->height, 0, 0, cmdq_pkt);181 mtk_mmsys_merge_async_config(ovl_adaptor->mmsys_dev, idx, align_width / 2,182 pending->height, cmdq_pkt);183 184 rdma_config.width = l_w;185 rdma_config.height = pending->height;186 rdma_config.addr0 = pending->addr;187 rdma_config.pitch = pending->pitch;188 rdma_config.fmt = pending->format;189 rdma_config.color_encoding = pending->color_encoding;190 mtk_mdp_rdma_config(rdma_l, &rdma_config, cmdq_pkt);191 192 if (use_dual_pipe) {193 rdma_config.x_left = l_w;194 rdma_config.width = r_w;195 mtk_mdp_rdma_config(rdma_r, &rdma_config, cmdq_pkt);196 }197 198 mtk_merge_start_cmdq(merge, cmdq_pkt);199 200 mtk_mdp_rdma_start(rdma_l, cmdq_pkt);201 if (use_dual_pipe)202 mtk_mdp_rdma_start(rdma_r, cmdq_pkt);203 else204 mtk_mdp_rdma_stop(rdma_r, cmdq_pkt);205 206 mtk_ethdr_layer_config(ethdr, idx, state, cmdq_pkt);207}208 209void mtk_ovl_adaptor_config(struct device *dev, unsigned int w,210 unsigned int h, unsigned int vrefresh,211 unsigned int bpc, struct cmdq_pkt *cmdq_pkt)212{213 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);214 215 mtk_ethdr_config(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0], w, h,216 vrefresh, bpc, cmdq_pkt);217}218 219void mtk_ovl_adaptor_start(struct device *dev)220{221 int i;222 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);223 224 for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {225 if (!ovl_adaptor->ovl_adaptor_comp[i] ||226 !comp_matches[i].funcs->start)227 continue;228 229 comp_matches[i].funcs->start(ovl_adaptor->ovl_adaptor_comp[i]);230 }231}232 233void mtk_ovl_adaptor_stop(struct device *dev)234{235 int i;236 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);237 238 for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {239 if (!ovl_adaptor->ovl_adaptor_comp[i] ||240 !comp_matches[i].funcs->stop)241 continue;242 243 comp_matches[i].funcs->stop(ovl_adaptor->ovl_adaptor_comp[i]);244 }245}246 247/**248 * power_off - Power off the devices in OVL adaptor249 * @dev: Device to be powered off250 * @num: Number of the devices to be powered off251 *252 * Calls the .power_off() ovl_adaptor component callback if it is present.253 */254static inline void power_off(struct device *dev, int num)255{256 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);257 int i;258 259 if (num > OVL_ADAPTOR_ID_MAX)260 num = OVL_ADAPTOR_ID_MAX;261 262 for (i = num - 1; i >= 0; i--) {263 if (!ovl_adaptor->ovl_adaptor_comp[i] ||264 !comp_matches[i].funcs->power_off)265 continue;266 267 comp_matches[i].funcs->power_off(ovl_adaptor->ovl_adaptor_comp[i]);268 }269}270 271/**272 * mtk_ovl_adaptor_power_on - Power on the devices in OVL adaptor273 * @dev: Device to be powered on274 *275 * Different from OVL, OVL adaptor is a pseudo device so276 * we didn't define it in the device tree, pm_runtime_resume_and_get()277 * called by .atomic_enable() power on no device in OVL adaptor,278 * we have to implement a function to do the job instead.279 *280 * Return: Zero for success or negative number for failure.281 */282int mtk_ovl_adaptor_power_on(struct device *dev)283{284 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);285 int i, ret;286 287 for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {288 if (!ovl_adaptor->ovl_adaptor_comp[i] ||289 !comp_matches[i].funcs->power_on)290 continue;291 292 ret = comp_matches[i].funcs->power_on(ovl_adaptor->ovl_adaptor_comp[i]);293 if (ret < 0) {294 dev_err(dev, "Failed to enable power domain %d, err %d\n", i, ret);295 power_off(dev, i);296 return ret;297 }298 }299 return 0;300}301 302void mtk_ovl_adaptor_power_off(struct device *dev)303{304 power_off(dev, OVL_ADAPTOR_ID_MAX);305}306 307int mtk_ovl_adaptor_clk_enable(struct device *dev)308{309 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);310 struct device *comp;311 int ret;312 int i;313 314 for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {315 comp = ovl_adaptor->ovl_adaptor_comp[i];316 if (!comp || !comp_matches[i].funcs->clk_enable)317 continue;318 ret = comp_matches[i].funcs->clk_enable(comp);319 if (ret) {320 dev_err(dev, "Failed to enable clock %d, err %d\n", i, ret);321 while (--i >= 0)322 comp_matches[i].funcs->clk_disable(comp);323 return ret;324 }325 }326 return 0;327}328 329void mtk_ovl_adaptor_clk_disable(struct device *dev)330{331 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);332 struct device *comp;333 int i;334 335 for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {336 comp = ovl_adaptor->ovl_adaptor_comp[i];337 if (!comp || !comp_matches[i].funcs->clk_disable)338 continue;339 comp_matches[i].funcs->clk_disable(comp);340 if (i < OVL_ADAPTOR_MERGE0)341 pm_runtime_put(comp);342 }343}344 345enum drm_mode_status mtk_ovl_adaptor_mode_valid(struct device *dev,346 const struct drm_display_mode *mode)347 348{349 int i;350 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);351 352 for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {353 dev = ovl_adaptor->ovl_adaptor_comp[i];354 if (!dev || !comp_matches[i].funcs->mode_valid)355 continue;356 return comp_matches[i].funcs->mode_valid(dev, mode);357 }358 return MODE_OK;359}360 361unsigned int mtk_ovl_adaptor_layer_nr(struct device *dev)362{363 return MTK_OVL_ADAPTOR_LAYER_NUM;364}365 366struct device *mtk_ovl_adaptor_dma_dev_get(struct device *dev)367{368 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);369 370 return ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MDP_RDMA0];371}372 373void mtk_ovl_adaptor_register_vblank_cb(struct device *dev, void (*vblank_cb)(void *),374 void *vblank_cb_data)375{376 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);377 378 mtk_ethdr_register_vblank_cb(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0],379 vblank_cb, vblank_cb_data);380}381 382void mtk_ovl_adaptor_unregister_vblank_cb(struct device *dev)383{384 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);385 386 mtk_ethdr_unregister_vblank_cb(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0]);387}388 389void mtk_ovl_adaptor_enable_vblank(struct device *dev)390{391 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);392 393 mtk_ethdr_enable_vblank(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0]);394}395 396void mtk_ovl_adaptor_disable_vblank(struct device *dev)397{398 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);399 400 mtk_ethdr_disable_vblank(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0]);401}402 403u32 mtk_ovl_adaptor_get_blend_modes(struct device *dev)404{405 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);406 407 return mtk_ethdr_get_blend_modes(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0]);408}409 410const u32 *mtk_ovl_adaptor_get_formats(struct device *dev)411{412 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);413 414 return mtk_mdp_rdma_get_formats(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MDP_RDMA0]);415}416 417size_t mtk_ovl_adaptor_get_num_formats(struct device *dev)418{419 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);420 421 return mtk_mdp_rdma_get_num_formats(ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MDP_RDMA0]);422}423 424void mtk_ovl_adaptor_add_comp(struct device *dev, struct mtk_mutex *mutex)425{426 int i;427 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);428 429 for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {430 if (!ovl_adaptor->ovl_adaptor_comp[i])431 continue;432 mtk_mutex_add_comp(mutex, comp_matches[i].comp_id);433 }434}435 436void mtk_ovl_adaptor_remove_comp(struct device *dev, struct mtk_mutex *mutex)437{438 int i;439 struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev);440 441 for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) {442 if (!ovl_adaptor->ovl_adaptor_comp[i])443 continue;444 mtk_mutex_remove_comp(mutex, comp_matches[i].comp_id);445 }446}447 448void mtk_ovl_adaptor_connect(struct device *dev, struct device *mmsys_dev, unsigned int next)449{450 mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_ETHDR_MIXER, next);451 mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MDP_RDMA0, DDP_COMPONENT_MERGE1);452 mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MDP_RDMA1, DDP_COMPONENT_MERGE1);453 mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MDP_RDMA2, DDP_COMPONENT_MERGE2);454 mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MERGE1, DDP_COMPONENT_ETHDR_MIXER);455 mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MERGE2, DDP_COMPONENT_ETHDR_MIXER);456 mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MERGE3, DDP_COMPONENT_ETHDR_MIXER);457 mtk_mmsys_ddp_connect(mmsys_dev, DDP_COMPONENT_MERGE4, DDP_COMPONENT_ETHDR_MIXER);458}459 460void mtk_ovl_adaptor_disconnect(struct device *dev, struct device *mmsys_dev, unsigned int next)461{462 mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_ETHDR_MIXER, next);463 mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MDP_RDMA0, DDP_COMPONENT_MERGE1);464 mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MDP_RDMA1, DDP_COMPONENT_MERGE1);465 mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MDP_RDMA2, DDP_COMPONENT_MERGE2);466 mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MERGE1, DDP_COMPONENT_ETHDR_MIXER);467 mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MERGE2, DDP_COMPONENT_ETHDR_MIXER);468 mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MERGE3, DDP_COMPONENT_ETHDR_MIXER);469 mtk_mmsys_ddp_disconnect(mmsys_dev, DDP_COMPONENT_MERGE4, DDP_COMPONENT_ETHDR_MIXER);470}471 472static int ovl_adaptor_comp_get_id(struct device *dev, struct device_node *node,473 enum mtk_ovl_adaptor_comp_type type)474{475 int alias_id = of_alias_get_id(node, private_comp_stem[type]);476 int i;477 478 for (i = 0; i < ARRAY_SIZE(comp_matches); i++)479 if (comp_matches[i].type == type &&480 comp_matches[i].alias_id == alias_id)481 return i;482 483 dev_warn(dev, "Failed to get id. type: %d, alias: %d\n", type, alias_id);484 return -EINVAL;485}486 487static const struct of_device_id mtk_ovl_adaptor_comp_dt_ids[] = {488 { .compatible = "mediatek,mt8188-disp-padding", .data = (void *)OVL_ADAPTOR_TYPE_PADDING },489 { .compatible = "mediatek,mt8195-disp-ethdr", .data = (void *)OVL_ADAPTOR_TYPE_ETHDR },490 { .compatible = "mediatek,mt8195-disp-merge", .data = (void *)OVL_ADAPTOR_TYPE_MERGE },491 { .compatible = "mediatek,mt8195-vdo1-rdma", .data = (void *)OVL_ADAPTOR_TYPE_MDP_RDMA },492 { /* sentinel */ }493};494 495static int compare_of(struct device *dev, void *data)496{497 return dev->of_node == data;498}499 500static int ovl_adaptor_comp_init(struct device *dev, struct component_match **match)501{502 struct mtk_disp_ovl_adaptor *priv = dev_get_drvdata(dev);503 struct device_node *parent;504 struct platform_device *comp_pdev;505 506 parent = dev->parent->parent->of_node->parent;507 508 for_each_child_of_node_scoped(parent, node) {509 const struct of_device_id *of_id;510 enum mtk_ovl_adaptor_comp_type type;511 int id;512 513 of_id = of_match_node(mtk_ovl_adaptor_comp_dt_ids, node);514 if (!of_id)515 continue;516 517 if (!of_device_is_available(node)) {518 dev_dbg(dev, "Skipping disabled component %pOF\n",519 node);520 continue;521 }522 523 type = (enum mtk_ovl_adaptor_comp_type)(uintptr_t)of_id->data;524 id = ovl_adaptor_comp_get_id(dev, node, type);525 if (id < 0) {526 dev_warn(dev, "Skipping unknown component %pOF\n",527 node);528 continue;529 }530 531 comp_pdev = of_find_device_by_node(node);532 if (!comp_pdev)533 return -EPROBE_DEFER;534 535 priv->ovl_adaptor_comp[id] = &comp_pdev->dev;536 537 drm_of_component_match_add(dev, match, compare_of, node);538 dev_dbg(dev, "Adding component match for %pOF\n", node);539 }540 541 if (!*match) {542 dev_err(dev, "No match device for ovl_adaptor\n");543 return -ENODEV;544 }545 546 return 0;547}548 549static int mtk_disp_ovl_adaptor_comp_bind(struct device *dev, struct device *master,550 void *data)551{552 struct mtk_disp_ovl_adaptor *priv = dev_get_drvdata(dev);553 554 if (!priv->children_bound)555 return -EPROBE_DEFER;556 557 return 0;558}559 560static void mtk_disp_ovl_adaptor_comp_unbind(struct device *dev, struct device *master,561 void *data)562{563}564 565static const struct component_ops mtk_disp_ovl_adaptor_comp_ops = {566 .bind = mtk_disp_ovl_adaptor_comp_bind,567 .unbind = mtk_disp_ovl_adaptor_comp_unbind,568};569 570static int mtk_disp_ovl_adaptor_master_bind(struct device *dev)571{572 struct mtk_disp_ovl_adaptor *priv = dev_get_drvdata(dev);573 int ret;574 575 ret = component_bind_all(dev, priv->mmsys_dev);576 if (ret)577 return dev_err_probe(dev, ret, "component_bind_all failed!\n");578 579 priv->children_bound = true;580 return 0;581}582 583static void mtk_disp_ovl_adaptor_master_unbind(struct device *dev)584{585 struct mtk_disp_ovl_adaptor *priv = dev_get_drvdata(dev);586 587 priv->children_bound = false;588}589 590static const struct component_master_ops mtk_disp_ovl_adaptor_master_ops = {591 .bind = mtk_disp_ovl_adaptor_master_bind,592 .unbind = mtk_disp_ovl_adaptor_master_unbind,593};594 595static int mtk_disp_ovl_adaptor_probe(struct platform_device *pdev)596{597 struct mtk_disp_ovl_adaptor *priv;598 struct device *dev = &pdev->dev;599 struct component_match *match = NULL;600 int ret;601 602 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);603 if (!priv)604 return -ENOMEM;605 606 platform_set_drvdata(pdev, priv);607 608 ret = ovl_adaptor_comp_init(dev, &match);609 if (ret < 0)610 return ret;611 612 priv->mmsys_dev = pdev->dev.platform_data;613 614 component_master_add_with_match(dev, &mtk_disp_ovl_adaptor_master_ops, match);615 616 pm_runtime_enable(dev);617 618 ret = component_add(dev, &mtk_disp_ovl_adaptor_comp_ops);619 if (ret != 0) {620 pm_runtime_disable(dev);621 return dev_err_probe(dev, ret, "Failed to add component\n");622 }623 624 return 0;625}626 627static void mtk_disp_ovl_adaptor_remove(struct platform_device *pdev)628{629 component_master_del(&pdev->dev, &mtk_disp_ovl_adaptor_master_ops);630 pm_runtime_disable(&pdev->dev);631}632 633struct platform_driver mtk_disp_ovl_adaptor_driver = {634 .probe = mtk_disp_ovl_adaptor_probe,635 .remove_new = mtk_disp_ovl_adaptor_remove,636 .driver = {637 .name = "mediatek-disp-ovl-adaptor",638 },639};640