drivers/media/video/rk_camsys/camsys_marvin.c

   1 #include "camsys_marvin.h"
   2 #include "camsys_soc_priv.h"
   3 #include "camsys_gpio.h"
   4
   5 #include <linux/rockchip/common.h>
   6 #include <dt-bindings/clock/rk_system_status.h>
   7 #include <linux/rockchip_ion.h>
   8 #include <linux/file.h>
   9
  10 extern int rockchip_set_system_status(unsigned long status);
  11 extern int rockchip_clear_system_status(unsigned long status);
  12
  13 static const char miscdev_name[] = CAMSYS_MARVIN_DEVNAME;
  14
  15
  16 static int camsys_mrv_iomux_cb(camsys_extdev_t *extdev,void *ptr)
  17 {
  18     struct pinctrl      *pinctrl;
  19     struct pinctrl_state    *state;
  20     int retval = 0;
  21     char state_str[20] = {0};
  22     camsys_dev_t *camsys_dev = (camsys_dev_t*)ptr;
  23     struct device *dev = &(extdev->pdev->dev);
  24     camsys_soc_priv_t *soc;
  25
  26     // DVP IO Config
  27
  28     if (extdev->phy.type == CamSys_Phy_Cif) {
  29
  30         switch (extdev->phy.info.cif.fmt)
  31         {
  32             case CamSys_Fmt_Raw_8b:
  33             case CamSys_Fmt_Yuv420_8b:
  34             case CamSys_Fmt_Yuv422_8b:
  35             {
  36                 if (extdev->phy.info.cif.cifio == CamSys_SensorBit0_CifBit0) {
  37                     strcpy(state_str,"isp_dvp8bit0");
  38                 } else if (extdev->phy.info.cif.cifio == CamSys_SensorBit0_CifBit2) {
  39                     strcpy(state_str,"isp_dvp8bit2");
  40                 } else {
  41                     camsys_err("extdev->phy.info.cif.cifio: 0x%x is invalidate!", extdev->phy.info.cif.cifio);
  42                     goto fail;
  43                 }
  44
  45                 break;
  46             }
  47
  48             case CamSys_Fmt_Raw_10b:
  49             {
  50                 strcpy(state_str,"isp_dvp10bit");
  51                 break;
  52             }
  53
  54             case CamSys_Fmt_Raw_12b:
  55             {
  56                 strcpy(state_str,"isp_dvp12bit");
  57                 break;
  58             }
  59
  60             default:
  61             {
  62                 camsys_err("extdev->phy.info.cif.fmt: 0x%x is invalidate!",extdev->phy.info.cif.fmt);
  63                 goto fail;
  64             }
  65         }
  66     } else {
  67         if (extdev->dev_cfg & CAMSYS_DEVCFG_FLASHLIGHT) {
  68             if (extdev->dev_cfg & CAMSYS_DEVCFG_PREFLASHLIGHT) {
  69                 strcpy(state_str,"isp_mipi_fl_prefl");
  70             } else {
  71                 strcpy(state_str,"isp_mipi_fl");
  72             }
  73             {
  74                 //mux triggerout as gpio
  75             //get gpio index
  76                 int flash_trigger_io ;
  77                 enum of_gpio_flags flags;
  78                 flash_trigger_io = of_get_named_gpio_flags(camsys_dev->pdev->dev.of_node, "rockchip,gpios", 0, &flags);
  79                 if(gpio_is_valid(flash_trigger_io)){
  80                     flash_trigger_io = of_get_named_gpio_flags(camsys_dev->pdev->dev.of_node, "rockchip,gpios", 0, &flags);
  81                     gpio_request(flash_trigger_io,"camsys_gpio");
  82                     gpio_direction_output(flash_trigger_io, (~(extdev->fl.fl.active) & 0x1));
  83                 }
  84             }
  85         } else {
  86             strcpy(state_str,"default");
  87         }
  88     }
  89
  90     camsys_trace(1,"marvin pinctrl select: %s", state_str);
  91
  92     pinctrl = devm_pinctrl_get(dev);
  93     if (IS_ERR(pinctrl)) {
  94         camsys_err("devm_pinctrl_get failed!");
  95         goto fail;
  96     }
  97     state = pinctrl_lookup_state(pinctrl,
  98                          state_str);
  99     if (IS_ERR(state)){
 100         camsys_err("pinctrl_lookup_state failed!");
 101         goto fail;
 102     }
 103
 104     if (!IS_ERR(state)) {
 105         retval = pinctrl_select_state(pinctrl, state);
 106         if (retval){
 107             camsys_err("pinctrl_select_state failed!");
 108             goto fail;
 109         }
 110     }
 111
 112     if (camsys_dev->soc) {
 113         soc = (camsys_soc_priv_t*)camsys_dev->soc;
 114         if (soc->soc_cfg) {
 115             (soc->soc_cfg)(Cif_IoDomain_Cfg,(void*)&extdev->dovdd.min_uv);
 116             (soc->soc_cfg)(Clk_DriverStrength_Cfg,(void*)&extdev->clk.driver_strength);
 117         } else {
 118             camsys_err("camsys_dev->soc->soc_cfg is NULL!");
 119         }
 120     } else {
 121         camsys_err("camsys_dev->soc is NULL!");
 122     }
 123
 124     return 0;
 125 fail:
 126     return -1;
 127 }
 128
 129 static int camsys_mrv_flash_trigger_cb(void *ptr,unsigned int on)
 130 {
 131     camsys_dev_t *camsys_dev = (camsys_dev_t*)ptr;
 132     struct device *dev = &(camsys_dev->pdev->dev);
 133     int flash_trigger_io ;
 134     struct pinctrl      *pinctrl;
 135     struct pinctrl_state    *state;
 136     char state_str[20] = {0};
 137     int retval = 0;
 138     enum of_gpio_flags flags;
 139     camsys_extdev_t *extdev = NULL;
 140
 141     if(!on){
 142         strcpy(state_str,"isp_flash_as_gpio");
 143         pinctrl = devm_pinctrl_get(dev);
 144         if (IS_ERR(pinctrl)) {
 145             camsys_err("devm_pinctrl_get failed!");
 146         }
 147         state = pinctrl_lookup_state(pinctrl,
 148                              state_str);
 149         if (IS_ERR(state)){
 150             camsys_err("pinctrl_lookup_state failed!");
 151         }
 152
 153         if (!IS_ERR(state)) {
 154             retval = pinctrl_select_state(pinctrl, state);
 155             if (retval){
 156                 camsys_err("pinctrl_select_state failed!");
 157             }
 158
 159         }
 160
 161         //get gpio index
 162         flash_trigger_io = of_get_named_gpio_flags(camsys_dev->pdev->dev.of_node, "rockchip,gpios", 0, &flags);
 163         if(gpio_is_valid(flash_trigger_io)){
 164             flash_trigger_io = of_get_named_gpio_flags(camsys_dev->pdev->dev.of_node, "rockchip,gpios", 0, &flags);
 165             gpio_request(flash_trigger_io,"camsys_gpio");
 166             //get flash io active pol
 167             if (!list_empty(&camsys_dev->extdevs.list)) {
 168                 list_for_each_entry(extdev, &camsys_dev->extdevs.list, list) {
 169                     if (extdev->dev_cfg & CAMSYS_DEVCFG_FLASHLIGHT) {
 170                         gpio_direction_output(flash_trigger_io, (~(extdev->fl.fl.active) & 0x1));
 171                     }
 172                 }
 173             }
 174         }
 175     }else{
 176         strcpy(state_str,"isp_flash_as_trigger_out");
 177         pinctrl = devm_pinctrl_get(dev);
 178         if (IS_ERR(pinctrl)) {
 179             camsys_err("devm_pinctrl_get failed!");
 180         }
 181         state = pinctrl_lookup_state(pinctrl,
 182                              state_str);
 183         if (IS_ERR(state)){
 184             camsys_err("pinctrl_lookup_state failed!");
 185         }
 186
 187         if (!IS_ERR(state)) {
 188             retval = pinctrl_select_state(pinctrl, state);
 189             if (retval){
 190                 camsys_err("pinctrl_select_state failed!");
 191             }
 192
 193         }
 194     }
 195     return retval;
 196 }
 197
 198 static int camsys_mrv_iommu_cb(void *ptr,camsys_sysctrl_t *devctl)
 199 {
 200     struct device *iommu_dev = NULL,*dev = NULL;
 201     struct file *file = NULL;
 202     struct ion_client *client = NULL;
 203     struct ion_handle *handle = NULL;
 204     camsys_iommu_t *iommu = NULL;
 205     int ret = 0,iommu_enabled = 0;
 206     camsys_dev_t * camsys_dev = (camsys_dev_t *)ptr;
 207
 208     of_property_read_u32(camsys_dev->pdev->dev.of_node, "rockchip,isp,iommu_enable", &iommu_enabled);
 209     if(iommu_enabled != 1){
 210         camsys_err("isp iommu have not been enabled!\n");
 211         ret = -1;
 212         goto iommu_end;
 213     }
 214
 215     iommu_dev = rockchip_get_sysmmu_device_by_compatible("iommu,isp_mmu");
 216     if(!iommu_dev){
 217         camsys_err("get iommu device erro!\n");
 218         ret = -1;
 219         goto iommu_end;
 220     }
 221     dev = &(camsys_dev->pdev->dev);
 222     iommu = (camsys_iommu_t *)(devctl->rev);
 223     file = fget(iommu->client_fd);
 224     if(!file){
 225         camsys_err("get client_fd file erro!\n");
 226         ret = -1;
 227         goto iommu_end;
 228     }
 229
 230     client = file->private_data;
 231
 232     if(!client){
 233         camsys_err("get ion_client erro!\n");
 234         ret = -1;
 235         goto iommu_end;
 236     }
 237
 238     fput(file);
 239
 240     handle = ion_import_dma_buf(client,iommu->map_fd);
 241
 242     camsys_trace(1,"map fd %d ,client fd %d\n",iommu->map_fd,iommu->client_fd);
 243     if(!handle){
 244         camsys_err("get ion_handle erro!\n");
 245         ret = -1;
 246         goto iommu_end;
 247     }
 248     if(devctl->on){
 249         platform_set_sysmmu(iommu_dev,dev);
 250         ret = iovmm_activate(dev);
 251
 252         ret = ion_map_iommu(dev,client,handle,&(iommu->linear_addr),&(iommu->len));
 253
 254     }else{
 255         ion_unmap_iommu(dev,client,handle);
 256         platform_set_sysmmu(iommu_dev,dev);
 257         iovmm_deactivate(dev);
 258     }
 259 iommu_end:
 260     return ret;
 261 }
 262 static int camsys_mrv_reset_cb(void *ptr,unsigned int on)
 263 {
 264     camsys_dev_t *camsys_dev = (camsys_dev_t*)ptr;
 265     camsys_soc_priv_t *soc;
 266
 267
 268     if (camsys_dev->soc) {
 269         soc = (camsys_soc_priv_t*)camsys_dev->soc;
 270         if (soc->soc_cfg) {
 271             (soc->soc_cfg)(Isp_SoftRst,(void*)on);
 272         } else {
 273             camsys_err("camsys_dev->soc->soc_cfg is NULL!");
 274         }
 275     } else {
 276         camsys_err("camsys_dev->soc is NULL!");
 277     }
 278
 279     return 0;
 280 }
 281
 282 static int camsys_mrv_clkin_cb(void *ptr, unsigned int on)
 283 {
 284     camsys_dev_t *camsys_dev = (camsys_dev_t*)ptr;
 285     camsys_mrv_clk_t *clk = (camsys_mrv_clk_t*)camsys_dev->clk;
 286     unsigned long isp_clk;
 287
 288     if (on && !clk->in_on) {
 289                 rockchip_set_system_status(SYS_STATUS_ISP);
 290
 291                 if (on == 1) {
 292                     isp_clk = 210000000;
 293                 } else {
 294                     isp_clk = 420000000;
 295                 }
 296
 297                 clk_set_rate(clk->isp,isp_clk);
 298         clk_set_rate(clk->isp_jpe, isp_clk);
 299
 300         clk_prepare_enable(clk->aclk_isp);
 301         clk_prepare_enable(clk->hclk_isp);
 302         clk_prepare_enable(clk->isp);
 303         clk_prepare_enable(clk->isp_jpe);
 304         clk_prepare_enable(clk->clk_mipi_24m);
 305         clk_prepare_enable(clk->pclkin_isp);
 306                 clk_prepare_enable(clk->pd_isp);
 307
 308         clk->in_on = true;
 309
 310         camsys_trace(1, "%s clock(f: %ld Hz) in turn on",dev_name(camsys_dev->miscdev.this_device),isp_clk);
 311         camsys_mrv_reset_cb(ptr,1);
 312         udelay(100);
 313         camsys_mrv_reset_cb(ptr,0);
 314
 315     } else if (!on && clk->in_on) {
 316
 317         clk_disable_unprepare(clk->aclk_isp);
 318         clk_disable_unprepare(clk->hclk_isp);
 319         clk_disable_unprepare(clk->isp);
 320         clk_disable_unprepare(clk->isp_jpe);
 321         clk_disable_unprepare(clk->clk_mipi_24m);
 322         clk_disable_unprepare(clk->pclkin_isp);
 323                 clk_disable_unprepare(clk->pd_isp);
 324
 325                 rockchip_clear_system_status(SYS_STATUS_ISP);
 326         clk->in_on = false;
 327         camsys_trace(1, "%s clock in turn off",dev_name(camsys_dev->miscdev.this_device));
 328     }
 329
 330     return 0;
 331 }
 332 static int camsys_mrv_clkout_cb(void *ptr, unsigned int on,unsigned int inclk)
 333 {
 334     camsys_dev_t *camsys_dev = (camsys_dev_t*)ptr;
 335     camsys_mrv_clk_t *clk = (camsys_mrv_clk_t*)camsys_dev->clk;
 336
 337     mutex_lock(&clk->lock);
 338     if (on && (clk->out_on != on)) {
 339
 340         clk_set_rate(clk->cif_clk_out,inclk);
 341         clk_prepare_enable(clk->cif_clk_out);
 342
 343                 clk->out_on = on;
 344         camsys_trace(1, "%s clock out(rate: %dHz) turn on",dev_name(camsys_dev->miscdev.this_device),
 345                     inclk);
 346     } else if (!on && clk->out_on) {
 347         if(!IS_ERR_OR_NULL(clk->cif_clk_pll)) {
 348             clk_set_parent(clk->cif_clk_out, clk->cif_clk_pll);
 349         } else {
 350             camsys_warn("%s clock out may be not off!", dev_name(camsys_dev->miscdev.this_device));
 351         }
 352
 353         clk_disable_unprepare( clk->cif_clk_out);
 354
 355         clk->out_on = 0;
 356
 357         camsys_trace(1, "%s clock out turn off",dev_name(camsys_dev->miscdev.this_device));
 358     }
 359     mutex_unlock(&clk->lock);
 360
 361     return 0;
 362 }
 363 static irqreturn_t camsys_mrv_irq(int irq, void *data)
 364 {
 365     camsys_dev_t *camsys_dev = (camsys_dev_t*)data;
 366     camsys_irqstas_t *irqsta;
 367     camsys_irqpool_t *irqpool;
 368     unsigned int isp_mis,mipi_mis,mi_mis,*mis;
 369
 370         unsigned int mi_ris,mi_imis;
 371
 372     isp_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_ISP_MIS));
 373     mipi_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MIPI_MIS));
 374
 375         mi_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_MIS));
 376 #if 1
 377         mi_ris =  __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_RIS));
 378         mi_imis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_IMIS));
 379         while((mi_ris & mi_imis) != mi_mis){
 380                 camsys_trace(2,"mi_mis status erro,mi_mis 0x%x,mi_ris 0x%x,imis 0x%x\n",mi_mis,mi_ris,mi_imis);
 381                 mi_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_MIS));
 382                 mi_ris =  __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_RIS));
 383         mi_imis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_IMIS));
 384         }
 385
 386 #endif
 387
 388     __raw_writel(isp_mis, (void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_ISP_ICR));
 389     __raw_writel(mipi_mis, (void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MIPI_ICR));
 390         __raw_writel(mi_mis, (void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_ICR));
 391
 392     spin_lock(&camsys_dev->irq.lock);
 393     if (!list_empty(&camsys_dev->irq.irq_pool)) {
 394         list_for_each_entry(irqpool, &camsys_dev->irq.irq_pool, list) {
 395             if (irqpool->pid != 0) {
 396                 switch(irqpool->mis)
 397                 {
 398                     case MRV_ISP_MIS:
 399                     {
 400                         mis = &isp_mis;
 401                         break;
 402                     }
 403
 404                     case MRV_MIPI_MIS:
 405                     {
 406                         mis = &mipi_mis;
 407                         break;
 408                     }
 409                     case MRV_MI_MIS:
 410                     {
 411                         mis = &mi_mis;
 412                         break;
 413                     }
 414
 415                     default:
 416                     {
 417                         camsys_trace(2,"Thread(pid:%d) irqpool mis(%d) is invalidate",irqpool->pid,irqpool->mis);
 418                         goto end;
 419                     }
 420                 }
 421
 422                 if (*mis != 0) {
 423                     spin_lock(&irqpool->lock);
 424                     if (!list_empty(&irqpool->deactive)) {
 425                         irqsta = list_first_entry(&irqpool->deactive, camsys_irqstas_t, list);
 426                         irqsta->sta.mis = *mis;
 427                         list_del_init(&irqsta->list);
 428                         list_add_tail(&irqsta->list,&irqpool->active);
 429                         wake_up(&irqpool->done);
 430                     }
 431                     spin_unlock(&irqpool->lock);
 432                 }
 433             }
 434         }
 435     }
 436 end:
 437     spin_unlock(&camsys_dev->irq.lock);
 438
 439     return IRQ_HANDLED;
 440 }
 441 static int camsys_mrv_remove_cb(struct platform_device *pdev)
 442 {
 443     camsys_dev_t *camsys_dev = platform_get_drvdata(pdev);
 444     camsys_mrv_clk_t *mrv_clk=NULL;
 445
 446     if (camsys_dev->clk != NULL) {
 447
 448         mrv_clk = (camsys_mrv_clk_t*)camsys_dev->clk;
 449         if (mrv_clk->out_on)
 450             camsys_mrv_clkout_cb(mrv_clk,0,0);
 451         if (mrv_clk->in_on)
 452             camsys_mrv_clkin_cb(mrv_clk,0);
 453
 454         if (!IS_ERR_OR_NULL(mrv_clk->pd_isp)) {
 455                         devm_clk_put(&pdev->dev,mrv_clk->pd_isp);
 456         }
 457         if (!IS_ERR_OR_NULL(mrv_clk->aclk_isp)) {
 458             devm_clk_put(&pdev->dev,mrv_clk->aclk_isp);
 459         }
 460         if (!IS_ERR_OR_NULL(mrv_clk->hclk_isp)) {
 461             devm_clk_put(&pdev->dev,mrv_clk->hclk_isp);
 462         }
 463         if (!IS_ERR_OR_NULL(mrv_clk->isp)) {
 464             devm_clk_put(&pdev->dev,mrv_clk->isp);
 465         }
 466         if (!IS_ERR_OR_NULL(mrv_clk->isp_jpe)) {
 467             devm_clk_put(&pdev->dev,mrv_clk->isp_jpe);
 468         }
 469         if (!IS_ERR_OR_NULL(mrv_clk->pclkin_isp)) {
 470             devm_clk_put(&pdev->dev,mrv_clk->pclkin_isp);
 471         }
 472         if (!IS_ERR_OR_NULL(mrv_clk->cif_clk_out)) {
 473             devm_clk_put(&pdev->dev,mrv_clk->cif_clk_out);
 474         }
 475
 476         kfree(mrv_clk);
 477         mrv_clk = NULL;
 478     }
 479
 480     return 0;
 481 }
 482 int camsys_mrv_probe_cb(struct platform_device *pdev, camsys_dev_t *camsys_dev)
 483 {
 484     int err = 0;
 485     camsys_mrv_clk_t *mrv_clk=NULL;
 486
 487         err = request_irq(camsys_dev->irq.irq_id, camsys_mrv_irq, IRQF_SHARED, CAMSYS_MARVIN_IRQNAME,camsys_dev);
 488     if (err) {
 489         camsys_err("request irq for %s failed",CAMSYS_MARVIN_IRQNAME);
 490         goto end;
 491     }
 492
 493     //Clk and Iomux init
 494     mrv_clk = kzalloc(sizeof(camsys_mrv_clk_t),GFP_KERNEL);
 495     if (mrv_clk == NULL) {
 496         camsys_err("Allocate camsys_mrv_clk_t failed!");
 497         err = -EINVAL;
 498         goto clk_failed;
 499     }
 500
 501     mrv_clk->pd_isp = devm_clk_get(&pdev->dev, "pd_isp");
 502     mrv_clk->aclk_isp = devm_clk_get(&pdev->dev, "aclk_isp");
 503     mrv_clk->hclk_isp = devm_clk_get(&pdev->dev, "hclk_isp");
 504     mrv_clk->isp = devm_clk_get(&pdev->dev, "clk_isp");
 505     mrv_clk->isp_jpe = devm_clk_get(&pdev->dev, "clk_isp_jpe");
 506     mrv_clk->pclkin_isp = devm_clk_get(&pdev->dev, "pclkin_isp");
 507     mrv_clk->cif_clk_out = devm_clk_get(&pdev->dev, "clk_cif_out");
 508     mrv_clk->cif_clk_pll = devm_clk_get(&pdev->dev, "clk_cif_pll");
 509     mrv_clk->clk_mipi_24m = devm_clk_get(&pdev->dev,"clk_mipi_24m");
 510
 511         if (IS_ERR_OR_NULL(mrv_clk->pd_isp) || IS_ERR_OR_NULL(mrv_clk->aclk_isp) || IS_ERR_OR_NULL(mrv_clk->hclk_isp) ||
 512         IS_ERR_OR_NULL(mrv_clk->isp) || IS_ERR_OR_NULL(mrv_clk->isp_jpe) || IS_ERR_OR_NULL(mrv_clk->pclkin_isp) ||
 513         IS_ERR_OR_NULL(mrv_clk->cif_clk_out) || IS_ERR_OR_NULL(mrv_clk->clk_mipi_24m)) {
 514         camsys_err("Get %s clock resouce failed!\n",miscdev_name);
 515         err = -EINVAL;
 516         goto clk_failed;
 517     }
 518
 519     clk_set_rate(mrv_clk->isp,210000000);
 520     clk_set_rate(mrv_clk->isp_jpe, 210000000);
 521
 522     mutex_init(&mrv_clk->lock);
 523
 524     mrv_clk->in_on = false;
 525     mrv_clk->out_on = 0;
 526
 527     camsys_dev->clk = (void*)mrv_clk;
 528     camsys_dev->clkin_cb = camsys_mrv_clkin_cb;
 529     camsys_dev->clkout_cb = camsys_mrv_clkout_cb;
 530     camsys_dev->reset_cb = camsys_mrv_reset_cb;
 531     camsys_dev->iomux = camsys_mrv_iomux_cb;
 532     camsys_dev->flash_trigger_cb = camsys_mrv_flash_trigger_cb;
 533     camsys_dev->iommu_cb = camsys_mrv_iommu_cb;
 534
 535     camsys_dev->miscdev.minor = MISC_DYNAMIC_MINOR;
 536     camsys_dev->miscdev.name = miscdev_name;
 537     camsys_dev->miscdev.nodename = miscdev_name;
 538     camsys_dev->miscdev.fops = &camsys_fops;
 539
 540     err = misc_register(&camsys_dev->miscdev);
 541     if (err < 0) {
 542         camsys_err("misc register %s failed!",miscdev_name);
 543         goto misc_register_failed;
 544     }
 545
 546     //Variable init
 547     camsys_dev->dev_id = CAMSYS_DEVID_MARVIN;
 548     camsys_dev->platform_remove = camsys_mrv_remove_cb;
 549
 550
 551     return 0;
 552 misc_register_failed:
 553     if (!IS_ERR_OR_NULL(camsys_dev->miscdev.this_device)) {
 554         misc_deregister(&camsys_dev->miscdev);
 555     }
 556
 557 clk_failed:
 558     if (mrv_clk != NULL) {
 559         if (!IS_ERR_OR_NULL(mrv_clk->pd_isp)) {
 560             clk_put(mrv_clk->pd_isp);
 561         }
 562         if (!IS_ERR_OR_NULL(mrv_clk->aclk_isp)) {
 563             clk_put(mrv_clk->aclk_isp);
 564         }
 565         if (!IS_ERR_OR_NULL(mrv_clk->hclk_isp)) {
 566             clk_put(mrv_clk->hclk_isp);
 567         }
 568         if (!IS_ERR_OR_NULL(mrv_clk->isp)) {
 569             clk_put(mrv_clk->isp);
 570         }
 571         if (!IS_ERR_OR_NULL(mrv_clk->isp_jpe)) {
 572             clk_put(mrv_clk->isp_jpe);
 573         }
 574         if (!IS_ERR_OR_NULL(mrv_clk->pclkin_isp)) {
 575             clk_put(mrv_clk->pclkin_isp);
 576         }
 577         if (!IS_ERR_OR_NULL(mrv_clk->cif_clk_out)) {
 578             clk_put(mrv_clk->cif_clk_out);
 579         }
 580
 581         kfree(mrv_clk);
 582         mrv_clk = NULL;
 583     }
 584
 585 end:
 586     return err;
 587 }
 588 EXPORT_SYMBOL_GPL(camsys_mrv_probe_cb);
 589