camsys_drv: v0.0x17.0
[firefly-linux-kernel-4.4.55.git] / 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 static struct device *rockchip_get_sysmmu_device_by_compatible(const char *compt)
198 {
199         struct device_node *dn = NULL;
200         struct platform_device *pd = NULL;
201         struct device *ret = NULL ;
202
203         dn = of_find_compatible_node(NULL,NULL,compt);
204         if(!dn)
205         {
206                 printk("can't find device node %s \r\n",compt);
207                 return NULL;
208         }
209         
210         pd = of_find_device_by_node(dn);
211         if(!pd)
212         {       
213                 printk("can't find platform device in device node %s \r\n",compt);
214                 return  NULL;
215         }
216         ret = &pd->dev;
217         
218         return ret;
219
220 }
221 #ifdef CONFIG_IOMMU_API
222 static inline void platform_set_sysmmu(struct device *iommu, struct device *dev)
223 {
224         dev->archdata.iommu = iommu;
225 }
226 #else
227 static inline void platform_set_sysmmu(struct device *iommu, struct device *dev)
228 {
229 }
230 #endif
231
232
233 static int camsys_mrv_iommu_cb(void *ptr,camsys_sysctrl_t *devctl)
234 {
235     struct device *iommu_dev = NULL,*dev = NULL;
236     struct file *file = NULL;
237     struct ion_client *client = NULL;
238     struct ion_handle *handle = NULL;
239     camsys_iommu_t *iommu = NULL;
240     int ret = 0,iommu_enabled = 0;
241     camsys_dev_t * camsys_dev = (camsys_dev_t *)ptr;
242
243     of_property_read_u32(camsys_dev->pdev->dev.of_node, "rockchip,isp,iommu_enable", &iommu_enabled);
244     if(iommu_enabled != 1){
245         camsys_err("isp iommu have not been enabled!\n");
246         ret = -1;
247         goto iommu_end;
248     }
249     iommu_dev = rockchip_get_sysmmu_device_by_compatible(ISP_IOMMU_COMPATIBLE_NAME);
250     if(!iommu_dev){
251         camsys_err("get iommu device erro!\n");
252         ret = -1;
253         goto iommu_end;
254     }
255     dev = &(camsys_dev->pdev->dev);
256     iommu = (camsys_iommu_t *)(devctl->rev);
257     file = fget(iommu->client_fd);
258     if(!file){
259         camsys_err("get client_fd file erro!\n");
260         ret = -1;
261         goto iommu_end;
262     }
263     
264     client = file->private_data;
265     
266     if(!client){
267         camsys_err("get ion_client erro!\n");
268         ret = -1;
269         goto iommu_end;
270     }
271     
272     fput(file);
273
274     handle = ion_import_dma_buf(client,iommu->map_fd);
275
276     camsys_trace(1,"map fd %d ,client fd %d\n",iommu->map_fd,iommu->client_fd);
277     if(!handle){
278         camsys_err("get ion_handle erro!\n");
279         ret = -1;
280         goto iommu_end;
281     }
282     if(devctl->on){
283         platform_set_sysmmu(iommu_dev,dev);
284         ret = rockchip_iovmm_activate(dev);
285         
286         ret = ion_map_iommu(dev,client,handle,&(iommu->linear_addr),&(iommu->len));
287         
288     }else{
289         ion_unmap_iommu(dev,client,handle);
290         platform_set_sysmmu(iommu_dev,dev);
291         rockchip_iovmm_deactivate(dev);
292     }
293 iommu_end:
294     return ret;
295 }
296 static int camsys_mrv_reset_cb(void *ptr,unsigned int on)
297 {
298     camsys_dev_t *camsys_dev = (camsys_dev_t*)ptr;
299     camsys_soc_priv_t *soc;
300
301
302     if (camsys_dev->soc) {
303         soc = (camsys_soc_priv_t*)camsys_dev->soc;
304         if (soc->soc_cfg) {
305             (soc->soc_cfg)(Isp_SoftRst,(void*)on);
306         } else {
307             camsys_err("camsys_dev->soc->soc_cfg is NULL!");
308         }
309     } else {
310         camsys_err("camsys_dev->soc is NULL!");
311     }
312     
313     return 0;
314 }
315
316 static int camsys_mrv_clkin_cb(void *ptr, unsigned int on)
317 {
318     camsys_dev_t *camsys_dev = (camsys_dev_t*)ptr;
319     camsys_mrv_clk_t *clk = (camsys_mrv_clk_t*)camsys_dev->clk;
320     unsigned long isp_clk;
321         
322     if (on && !clk->in_on) {
323                 rockchip_set_system_status(SYS_STATUS_ISP);
324
325                 if (on == 1) {
326                     isp_clk = 210000000;           
327                 } else {
328                     isp_clk = 420000000;            
329                 }
330
331                 clk_set_rate(clk->isp,isp_clk);
332         clk_set_rate(clk->isp_jpe, isp_clk);
333
334         clk_prepare_enable(clk->aclk_isp);
335         clk_prepare_enable(clk->hclk_isp);
336         clk_prepare_enable(clk->isp);
337         clk_prepare_enable(clk->isp_jpe);
338         clk_prepare_enable(clk->clk_mipi_24m); 
339         clk_prepare_enable(clk->pclkin_isp); 
340                 clk_prepare_enable(clk->pd_isp);
341
342         clk->in_on = true;
343
344         camsys_trace(1, "%s clock(f: %ld Hz) in turn on",dev_name(camsys_dev->miscdev.this_device),isp_clk);
345         camsys_mrv_reset_cb(ptr,1);
346         udelay(100);
347         camsys_mrv_reset_cb(ptr,0);
348         
349     } else if (!on && clk->in_on) {
350
351         clk_disable_unprepare(clk->aclk_isp);
352         clk_disable_unprepare(clk->hclk_isp);
353         clk_disable_unprepare(clk->isp);
354         clk_disable_unprepare(clk->isp_jpe);
355         clk_disable_unprepare(clk->clk_mipi_24m); 
356         clk_disable_unprepare(clk->pclkin_isp); 
357                 clk_disable_unprepare(clk->pd_isp);
358
359                 rockchip_clear_system_status(SYS_STATUS_ISP);
360         clk->in_on = false;
361         camsys_trace(1, "%s clock in turn off",dev_name(camsys_dev->miscdev.this_device));
362     }
363     
364     return 0;
365 }
366 static int camsys_mrv_clkout_cb(void *ptr, unsigned int on,unsigned int inclk)
367 {
368     camsys_dev_t *camsys_dev = (camsys_dev_t*)ptr;
369     camsys_mrv_clk_t *clk = (camsys_mrv_clk_t*)camsys_dev->clk;
370     
371     mutex_lock(&clk->lock);
372     if (on && (clk->out_on != on)) {  
373
374         clk_set_rate(clk->cif_clk_out,inclk);
375         clk_prepare_enable(clk->cif_clk_out);
376         
377                 clk->out_on = on;
378         camsys_trace(1, "%s clock out(rate: %dHz) turn on",dev_name(camsys_dev->miscdev.this_device),
379                     inclk);
380     } else if (!on && clk->out_on) {
381         if(!IS_ERR_OR_NULL(clk->cif_clk_pll)) {
382             clk_set_parent(clk->cif_clk_out, clk->cif_clk_pll);
383         } else {
384             camsys_warn("%s clock out may be not off!", dev_name(camsys_dev->miscdev.this_device));
385         }
386
387         clk_disable_unprepare( clk->cif_clk_out);
388
389         clk->out_on = 0;
390
391         camsys_trace(1, "%s clock out turn off",dev_name(camsys_dev->miscdev.this_device));
392     }
393     mutex_unlock(&clk->lock);    
394
395     return 0;
396 }
397 static irqreturn_t camsys_mrv_irq(int irq, void *data)
398 {
399     camsys_dev_t *camsys_dev = (camsys_dev_t*)data;
400     camsys_irqstas_t *irqsta;
401     camsys_irqpool_t *irqpool;
402     unsigned int isp_mis,mipi_mis,mi_mis,*mis,jpg_mis,jpg_err_mis;
403         
404         unsigned int mi_ris,mi_imis;
405
406     isp_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_ISP_MIS));
407     mipi_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MIPI_MIS));
408     jpg_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_JPG_MIS));
409     jpg_err_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_JPG_ERR_MIS));
410         mi_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_MIS));
411 #if 1   
412         mi_ris =  __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_RIS));
413         mi_imis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_IMIS));
414         while((mi_ris & mi_imis) != mi_mis){
415                 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);
416                 mi_mis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_MIS));
417                 mi_ris =  __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_RIS));
418         mi_imis = __raw_readl((void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_IMIS));
419         }
420
421 #endif
422
423     __raw_writel(isp_mis, (void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_ISP_ICR)); 
424     __raw_writel(mipi_mis, (void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MIPI_ICR)); 
425     __raw_writel(jpg_mis, (void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_JPG_ICR));
426     __raw_writel(jpg_err_mis, (void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_JPG_ERR_ICR));
427         __raw_writel(mi_mis, (void volatile *)(camsys_dev->devmems.registermem->vir_base + MRV_MI_ICR)); 
428
429     spin_lock(&camsys_dev->irq.lock);
430     if (!list_empty(&camsys_dev->irq.irq_pool)) {
431         list_for_each_entry(irqpool, &camsys_dev->irq.irq_pool, list) {
432             if (irqpool->pid != 0) {
433                 switch(irqpool->mis)
434                 {
435                     case MRV_ISP_MIS:
436                     {
437                         mis = &isp_mis;
438                         break;
439                     }
440
441                     case MRV_MIPI_MIS:
442                     {
443                         mis = &mipi_mis;
444                         break;
445                     }
446                     case MRV_MI_MIS:
447                     {
448                         mis = &mi_mis;
449                         break;
450                     }
451
452                     case MRV_JPG_MIS:
453                     {
454                         mis = &jpg_mis;
455                         break;
456                     }
457
458                     case MRV_JPG_ERR_MIS:
459                     {
460                         mis = &jpg_err_mis;
461                         break;
462                     }
463
464                     default:     
465                     {
466                         camsys_trace(2,"Thread(pid:%d) irqpool mis(%d) is invalidate",irqpool->pid,irqpool->mis);
467                         goto end;
468                     }
469                 }
470
471                 if (*mis != 0) {
472                     spin_lock(&irqpool->lock);
473                     if (!list_empty(&irqpool->deactive)) {
474                         irqsta = list_first_entry(&irqpool->deactive, camsys_irqstas_t, list);
475                         irqsta->sta.mis = *mis;                                                 
476                         list_del_init(&irqsta->list);            
477                         list_add_tail(&irqsta->list,&irqpool->active);                        
478                         wake_up(&irqpool->done);
479                     }
480                     spin_unlock(&irqpool->lock);
481                 }
482             }
483         }
484     }
485 end:    
486     spin_unlock(&camsys_dev->irq.lock);
487
488     return IRQ_HANDLED;
489 }
490 static int camsys_mrv_remove_cb(struct platform_device *pdev)
491 {
492     camsys_dev_t *camsys_dev = platform_get_drvdata(pdev);
493     camsys_mrv_clk_t *mrv_clk=NULL;
494
495     if (camsys_dev->clk != NULL) {
496
497         mrv_clk = (camsys_mrv_clk_t*)camsys_dev->clk;
498         if (mrv_clk->out_on)
499             camsys_mrv_clkout_cb(mrv_clk,0,0);
500         if (mrv_clk->in_on)
501             camsys_mrv_clkin_cb(mrv_clk,0);
502     
503         if (!IS_ERR_OR_NULL(mrv_clk->pd_isp)) {
504                         devm_clk_put(&pdev->dev,mrv_clk->pd_isp);
505         }
506         if (!IS_ERR_OR_NULL(mrv_clk->aclk_isp)) {
507             devm_clk_put(&pdev->dev,mrv_clk->aclk_isp);
508         }
509         if (!IS_ERR_OR_NULL(mrv_clk->hclk_isp)) {
510             devm_clk_put(&pdev->dev,mrv_clk->hclk_isp);
511         }
512         if (!IS_ERR_OR_NULL(mrv_clk->isp)) {
513             devm_clk_put(&pdev->dev,mrv_clk->isp);
514         }
515         if (!IS_ERR_OR_NULL(mrv_clk->isp_jpe)) {
516             devm_clk_put(&pdev->dev,mrv_clk->isp_jpe);
517         }
518         if (!IS_ERR_OR_NULL(mrv_clk->pclkin_isp)) {
519             devm_clk_put(&pdev->dev,mrv_clk->pclkin_isp);
520         }
521         if (!IS_ERR_OR_NULL(mrv_clk->cif_clk_out)) {
522             devm_clk_put(&pdev->dev,mrv_clk->cif_clk_out);
523         }
524
525         kfree(mrv_clk);
526         mrv_clk = NULL;
527     }
528
529     return 0;
530 }
531 int camsys_mrv_probe_cb(struct platform_device *pdev, camsys_dev_t *camsys_dev)
532 {
533     int err = 0;   
534     camsys_mrv_clk_t *mrv_clk=NULL;
535     
536         err = request_irq(camsys_dev->irq.irq_id, camsys_mrv_irq, IRQF_SHARED, CAMSYS_MARVIN_IRQNAME,camsys_dev);
537     if (err) {
538         camsys_err("request irq for %s failed",CAMSYS_MARVIN_IRQNAME);
539         goto end;
540     }
541
542     //Clk and Iomux init
543     mrv_clk = kzalloc(sizeof(camsys_mrv_clk_t),GFP_KERNEL);
544     if (mrv_clk == NULL) {
545         camsys_err("Allocate camsys_mrv_clk_t failed!");
546         err = -EINVAL;
547         goto clk_failed;
548     }
549      
550     mrv_clk->pd_isp = devm_clk_get(&pdev->dev, "pd_isp");
551     mrv_clk->aclk_isp = devm_clk_get(&pdev->dev, "aclk_isp");
552     mrv_clk->hclk_isp = devm_clk_get(&pdev->dev, "hclk_isp");
553     mrv_clk->isp = devm_clk_get(&pdev->dev, "clk_isp");
554     mrv_clk->isp_jpe = devm_clk_get(&pdev->dev, "clk_isp_jpe");
555     mrv_clk->pclkin_isp = devm_clk_get(&pdev->dev, "pclkin_isp");
556     mrv_clk->cif_clk_out = devm_clk_get(&pdev->dev, "clk_cif_out");
557     mrv_clk->cif_clk_pll = devm_clk_get(&pdev->dev, "clk_cif_pll");
558     mrv_clk->clk_mipi_24m = devm_clk_get(&pdev->dev,"clk_mipi_24m"); 
559     
560         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) ||
561         IS_ERR_OR_NULL(mrv_clk->isp) || IS_ERR_OR_NULL(mrv_clk->isp_jpe) || IS_ERR_OR_NULL(mrv_clk->pclkin_isp) || 
562         IS_ERR_OR_NULL(mrv_clk->cif_clk_out) || IS_ERR_OR_NULL(mrv_clk->clk_mipi_24m)) {
563         camsys_err("Get %s clock resouce failed!\n",miscdev_name);
564         err = -EINVAL;
565         goto clk_failed;
566     }
567     
568     clk_set_rate(mrv_clk->isp,210000000);
569     clk_set_rate(mrv_clk->isp_jpe, 210000000);
570     
571     mutex_init(&mrv_clk->lock);
572     
573     mrv_clk->in_on = false;
574     mrv_clk->out_on = 0;
575         
576     camsys_dev->clk = (void*)mrv_clk;
577     camsys_dev->clkin_cb = camsys_mrv_clkin_cb;
578     camsys_dev->clkout_cb = camsys_mrv_clkout_cb;
579     camsys_dev->reset_cb = camsys_mrv_reset_cb;
580     camsys_dev->iomux = camsys_mrv_iomux_cb;
581     camsys_dev->flash_trigger_cb = camsys_mrv_flash_trigger_cb;
582     camsys_dev->iommu_cb = camsys_mrv_iommu_cb;
583     
584     camsys_dev->miscdev.minor = MISC_DYNAMIC_MINOR;
585     camsys_dev->miscdev.name = miscdev_name;
586     camsys_dev->miscdev.nodename = miscdev_name;
587     camsys_dev->miscdev.fops = &camsys_fops;
588
589     err = misc_register(&camsys_dev->miscdev);
590     if (err < 0) {
591         camsys_err("misc register %s failed!",miscdev_name);
592         goto misc_register_failed;
593     }   
594
595     //Variable init
596     camsys_dev->dev_id = CAMSYS_DEVID_MARVIN;
597     camsys_dev->platform_remove = camsys_mrv_remove_cb;
598    
599          
600     return 0;
601 misc_register_failed:
602     if (!IS_ERR_OR_NULL(camsys_dev->miscdev.this_device)) {
603         misc_deregister(&camsys_dev->miscdev);
604     }
605
606 clk_failed:
607     if (mrv_clk != NULL) {
608         if (!IS_ERR_OR_NULL(mrv_clk->pd_isp)) {
609             clk_put(mrv_clk->pd_isp);
610         }
611         if (!IS_ERR_OR_NULL(mrv_clk->aclk_isp)) {
612             clk_put(mrv_clk->aclk_isp);
613         }
614         if (!IS_ERR_OR_NULL(mrv_clk->hclk_isp)) {
615             clk_put(mrv_clk->hclk_isp);
616         }
617         if (!IS_ERR_OR_NULL(mrv_clk->isp)) {
618             clk_put(mrv_clk->isp);
619         }
620         if (!IS_ERR_OR_NULL(mrv_clk->isp_jpe)) {
621             clk_put(mrv_clk->isp_jpe);
622         }
623         if (!IS_ERR_OR_NULL(mrv_clk->pclkin_isp)) {
624             clk_put(mrv_clk->pclkin_isp);
625         }
626         if (!IS_ERR_OR_NULL(mrv_clk->cif_clk_out)) {
627             clk_put(mrv_clk->cif_clk_out);
628         }
629
630         kfree(mrv_clk);
631         mrv_clk = NULL;
632     }
633     
634 end:
635     return err;
636 }
637 EXPORT_SYMBOL_GPL(camsys_mrv_probe_cb);
638