drivers/video/rockchip/transmitter/rk610_lcd.c

   1 #include <linux/fb.h>
   2 #include <linux/delay.h>
   3 #include <mach/gpio.h>
   4 #include <mach/iomux.h>
   5 #include <mach/board.h>
   6 #include "rk610_lcd.h"
   7 #include <linux/mfd/rk610_core.h>
   8 #include <linux/rk_fb.h>
   9 #include "../hdmi/rk_hdmi.h"
  10
  11 static struct rk610_lcd_info *g_lcd_inf = NULL;
  12 //static int rk610_scaler_read_p0_reg(struct i2c_client *client, char reg, char *val)
  13 //{
  14         //return i2c_master_reg8_recv(client, reg, val, 1, 100*1000) > 0? 0: -EINVAL;
  15 //}
  16
  17 static int rk610_scaler_write_p0_reg(struct i2c_client *client, char reg, char *val)
  18 {
  19         return i2c_master_reg8_send(client, reg, val, 1, 100*1000) > 0? 0: -EINVAL;
  20 }
  21 static void rk610_scaler_pll_enable(struct i2c_client *client)
  22 {
  23     char c;
  24     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
  25
  26     g_lcd_inf->scl_inf.pll_pwr = ENABLE;
  27
  28     c = S_PLL_PWR(0)|S_PLL_RESET(0)|S_PLL_BYPASS(0);
  29         rk610_scaler_write_p0_reg(client, S_PLL_CON2, &c);
  30 }
  31 static void rk610_scaler_pll_disable(struct i2c_client *client)
  32 {
  33     char c;
  34     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
  35
  36     g_lcd_inf->scl_inf.pll_pwr = DISABLE;
  37
  38     c = S_PLL_PWR(1) |S_PLL_RESET(0) |S_PLL_BYPASS(1);
  39         rk610_scaler_write_p0_reg(client, S_PLL_CON2, &c);
  40 }
  41 static void rk610_scaler_enable(struct i2c_client *client)
  42 {
  43     char c;
  44     bool den_inv = 0,hv_sync_inv = 0,clk_inv = 0;
  45     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
  46     g_lcd_inf->scl_inf.scl_pwr = ENABLE;
  47     #if defined(CONFIG_HDMI_DUAL_DISP) || defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)
  48     if(g_lcd_inf->screen !=NULL){
  49         den_inv = g_lcd_inf->screen->s_den_inv;
  50         hv_sync_inv = g_lcd_inf->screen->s_hv_sync_inv;
  51         clk_inv = g_lcd_inf->screen->s_clk_inv;
  52     }
  53     #endif
  54     c= SCL_BYPASS(0) |SCL_DEN_INV(den_inv) |SCL_H_V_SYNC_INV(hv_sync_inv) |SCL_OUT_CLK_INV(clk_inv) |SCL_ENABLE(ENABLE);
  55         rk610_scaler_write_p0_reg(client, SCL_CON0, &c);
  56 }
  57 static void rk610_scaler_disable(struct i2c_client *client)
  58 {
  59     char c;
  60     bool den_inv = 0,hv_sync_inv = 0,clk_inv = 0;
  61     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
  62
  63     g_lcd_inf->scl_inf.scl_pwr = DISABLE;
  64     #if defined(CONFIG_HDMI_DUAL_DISP) || defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)
  65     if(g_lcd_inf->screen !=NULL){
  66         den_inv = g_lcd_inf->screen->s_den_inv;
  67         hv_sync_inv = g_lcd_inf->screen->s_hv_sync_inv;
  68         clk_inv = g_lcd_inf->screen->s_clk_inv;
  69     }
  70     #endif
  71     c= SCL_BYPASS(1) |SCL_DEN_INV(den_inv) |SCL_H_V_SYNC_INV(hv_sync_inv) |SCL_OUT_CLK_INV(clk_inv) |SCL_ENABLE(DISABLE);
  72     rk610_scaler_write_p0_reg(client, SCL_CON0, &c);
  73 }
  74
  75 static int rk610_output_config(struct i2c_client *client,struct rk29fb_screen *screen,int mode)
  76 {
  77     char c=0;
  78     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
  79      if(SCREEN_LVDS == screen->type){
  80         if(mode == LCD_OUT_SCL || mode == LCD_OUT_BYPASS){
  81             c = LVDS_OUT_CLK_PIN(0) |LVDS_OUT_CLK_PWR_PIN(1) |LVDS_PLL_PWR_PIN(0) \
  82                 |LVDS_LANE_IN_FORMAT(DATA_D0_MSB) \
  83                 |LVDS_OUTPUT_FORMAT(screen->lvds_format) | LVDS_BIASE_PWR(1);
  84                         #if defined(CONFIG_DUAL_LCDC_DUAL_DISP_IN_KERNEL)
  85                         c |=  LVDS_INPUT_SOURCE(FROM_LCD1);
  86                         #else
  87                         c |=  LVDS_INPUT_SOURCE(FROM_LCD0_OR_SCL);
  88                         #endif
  89                 rk610_scaler_write_p0_reg(client, LVDS_CON0, &c);
  90                 c = LCD1_OUT_ENABLE(LCD1_AS_IN);
  91           rk610_scaler_write_p0_reg(client, LCD1_CON, &c);
  92             c = LVDS_OUT_ENABLE(0x0) |LVDS_TX_PWR_ENABLE(0x0);
  93                 rk610_scaler_write_p0_reg(client, LVDS_CON1, &c);
  94             }
  95             else{
  96                 c = LVDS_OUT_CLK_PIN(0) |LVDS_OUT_CLK_PWR_PIN(0) |LVDS_PLL_PWR_PIN(1) \
  97                 |LVDS_LANE_IN_FORMAT(DATA_D0_MSB) |LVDS_INPUT_SOURCE(FROM_LCD0_OR_SCL) \
  98                 |LVDS_OUTPUT_FORMAT(screen->lvds_format) | LVDS_BIASE_PWR(0);
  99                 rk610_scaler_write_p0_reg(client, LVDS_CON0, &c);
 100             c = LVDS_OUT_ENABLE(0xf) |LVDS_TX_PWR_ENABLE(0xf);
 101                 rk610_scaler_write_p0_reg(client, LVDS_CON1, &c);
 102
 103             }
 104         }else if(SCREEN_RGB == screen->type){
 105             if(mode == LCD_OUT_SCL || mode == LCD_OUT_BYPASS){
 106             c = LCD1_OUT_ENABLE(LCD1_AS_OUT) | LCD1_OUT_SRC((mode == LCD_OUT_SCL)?LCD1_FROM_SCL : LCD1_FROM_LCD0);
 107                 rk610_scaler_write_p0_reg(client, LCD1_CON, &c);
 108             }
 109             else {
 110             c = LCD1_OUT_ENABLE(LCD1_AS_IN);
 111                 rk610_scaler_write_p0_reg(client, LCD1_CON, &c);
 112             }
 113         }
 114         return 0;
 115 }
 116 #if defined(CONFIG_HDMI_DUAL_DISP) || defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)
 117 static int rk610_scaler_pll_set(struct i2c_client *client,struct rk29fb_screen *screen,u32 clkin )
 118 {
 119     char c=0;
 120     char M=0,N=0,OD=0;
 121     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
 122         /***************SET SCALER PLL FROM CLKIN ,DIV 0*/
 123     if(screen->s_pixclock != 0){
 124         OD = (screen->s_pixclock)&0x3;
 125         N = (screen->s_pixclock >>4)&0xf;
 126         M = (screen->s_pixclock >>8)&0xff;
 127     }else {
 128         RK610_ERR(&client->dev,"RK610 Scaler pll not support rate \n");
 129     }
 130     c = S_PLL_FROM_DIV<<3 | S_PLL_DIV(0);
 131         rk610_scaler_write_p0_reg(client, CLOCK_CON0, &c);
 132
 133     c = S_DIV_N(N)| S_DIV_OD(OD);
 134         rk610_scaler_write_p0_reg(client, S_PLL_CON0, &c);
 135     c = S_DIV_M(M);
 136     rk610_scaler_write_p0_reg(client, S_PLL_CON1, &c);
 137     rk610_scaler_pll_enable(client);
 138         return 0;
 139 }
 140
 141
 142 static int  scale_hv_factor(struct i2c_client *client ,u32 Hin_act, u32 Hout_act, u32 Vin_act, u32 Vout_act)
 143    {
 144     char c;
 145         u32 hfactor_f,vfactor_f,scl_factor_f;
 146         int  hfactor;
 147         int  vfactor;
 148         struct scl_hv_info  HV2;
 149         hfactor_f = ((Hin_act-1)*4096)/(Hout_act-1);
 150     if(hfactor_f==4096)
 151             {hfactor = 0x1000;}
 152         else if(hfactor_f>(int)hfactor_f)
 153                 {hfactor = (int)hfactor_f+1;}
 154         else
 155                 {hfactor = (int)hfactor_f;}
 156
 157         scl_factor_f = Vin_act/Vout_act;
 158         if(scl_factor_f<2)
 159             {vfactor_f = ((Vin_act-1)*4096)/(Vout_act-1);}
 160         else
 161                 {vfactor_f = ((Vin_act-2)*4096)/(Vout_act-1);}
 162         if(vfactor_f==4096)
 163             {vfactor = 0x1000;}
 164         else if(vfactor_f>(int)vfactor_f)
 165                 {vfactor = (int)vfactor_f+1;}
 166         else
 167                 {vfactor = (int)vfactor_f;}
 168
 169     HV2.scl_h= hfactor;
 170     HV2.scl_v= vfactor;
 171            /*       SCL FACTOR          */
 172     c = SCL_H_FACTOR_LSB(HV2.scl_h);
 173         rk610_scaler_write_p0_reg(client, SCL_CON1, &c);
 174     c = SCL_H_FACTOR_MSB(HV2.scl_h);
 175         rk610_scaler_write_p0_reg(client, SCL_CON2, &c);
 176
 177     c = SCL_V_FACTOR_LSB(HV2.scl_v);
 178         rk610_scaler_write_p0_reg(client, SCL_CON3, &c);
 179     c = SCL_V_FACTOR_MSB(HV2.scl_v);
 180         rk610_scaler_write_p0_reg(client, SCL_CON4, &c);
 181         return 0;
 182    }
 183
 184 static int rk610_scaler_fator_config(struct i2c_client *client ,struct rk29fb_screen *screen)
 185 {
 186     switch(screen->hdmi_resolution){
 187         case HDMI_1920x1080p_60Hz:
 188         case HDMI_1920x1080p_50Hz:
 189             rk610_scaler_pll_set(client,screen,148500000);
 190             /***************set scaler factor********************/
 191             scale_hv_factor(client,1920,screen->x_res,1080,screen->y_res);
 192             break;
 193         case HDMI_1280x720p_60Hz:
 194         case HDMI_1280x720p_50Hz:
 195             rk610_scaler_pll_set(client,screen,74250000);
 196             /***************set scaler factor********************/
 197             scale_hv_factor(client,1280,screen->x_res,720,screen->y_res);
 198         break;
 199         case HDMI_720x576p_50Hz_16_9:
 200         case HDMI_720x576p_50Hz_4_3:
 201             rk610_scaler_pll_set(client,screen,27000000);
 202             /***************set scaler factor********************/
 203             scale_hv_factor(client,720,screen->x_res,576,screen->y_res);
 204             break;
 205         case HDMI_720x480p_60Hz_16_9:
 206         case HDMI_720x480p_60Hz_4_3:
 207             rk610_scaler_pll_set(client,screen,27000000);
 208             /***************set scaler factor********************/
 209             scale_hv_factor(client,720,screen->x_res,480,screen->y_res);
 210         break;
 211     default :
 212         RK610_ERR(&client->dev,"RK610 not support dual display at hdmi resolution=%d \n",screen->hdmi_resolution);
 213         return -1;
 214         break;
 215     }
 216     return 0;
 217 }
 218 static int rk610_scaler_output_timing_config(struct i2c_client *client,struct rk29fb_screen *screen)
 219 {
 220     char c;
 221     int h_st = screen->s_hsync_st;
 222     int hs_end = screen->s_hsync_len;
 223     int h_act_st = hs_end + screen->s_left_margin;
 224     int xres = screen->x_res;
 225     int h_act_end = h_act_st + xres;
 226     int h_total = h_act_end + screen->s_right_margin;
 227     int v_st = screen->s_vsync_st;
 228     int vs_end = screen->s_vsync_len;
 229     int v_act_st = vs_end + screen->s_upper_margin;
 230     int yres = screen->y_res;
 231     int v_act_end = v_act_st + yres;
 232     int v_total = v_act_end + screen->s_lower_margin;
 233
 234     /*      SCL display Frame start point   */
 235     c = SCL_DSP_HST_LSB(h_st);
 236         rk610_scaler_write_p0_reg(client, SCL_CON5, &c);
 237     c = SCL_DSP_HST_MSB(h_st);
 238         rk610_scaler_write_p0_reg(client, SCL_CON6, &c);
 239
 240     c = SCL_DSP_VST_LSB(v_st);
 241         rk610_scaler_write_p0_reg(client, SCL_CON7, &c);
 242     c = SCL_DSP_VST_MSB(v_st);
 243         rk610_scaler_write_p0_reg(client, SCL_CON8, &c);
 244     /*      SCL output timing       */
 245
 246     c = SCL_DSP_HTOTAL_LSB(h_total);
 247         rk610_scaler_write_p0_reg(client, SCL_CON9, &c);
 248     c = SCL_DSP_HTOTAL_MSB(h_total);
 249         rk610_scaler_write_p0_reg(client, SCL_CON10, &c);
 250
 251     c = SCL_DSP_HS_END(hs_end);
 252         rk610_scaler_write_p0_reg(client, SCL_CON11, &c);
 253
 254     c = SCL_DSP_HACT_ST_LSB(h_act_st);
 255         rk610_scaler_write_p0_reg(client, SCL_CON12, &c);
 256     c = SCL_DSP_HACT_ST_MSB(h_act_st);
 257         rk610_scaler_write_p0_reg(client, SCL_CON13, &c);
 258
 259     c = SCL_DSP_HACT_END_LSB(h_act_end);
 260         rk610_scaler_write_p0_reg(client, SCL_CON14, &c);
 261     c = SCL_DSP_HACT_END_MSB(h_act_end);
 262         rk610_scaler_write_p0_reg(client, SCL_CON15, &c);
 263
 264     c = SCL_DSP_VTOTAL_LSB(v_total);
 265         rk610_scaler_write_p0_reg(client, SCL_CON16, &c);
 266     c = SCL_DSP_VTOTAL_MSB(v_total);
 267         rk610_scaler_write_p0_reg(client, SCL_CON17, &c);
 268
 269     c = SCL_DSP_VS_END(vs_end);
 270         rk610_scaler_write_p0_reg(client, SCL_CON18, &c);
 271
 272     c = SCL_DSP_VACT_ST(v_act_st);
 273         rk610_scaler_write_p0_reg(client, SCL_CON19, &c);
 274
 275     c = SCL_DSP_VACT_END_LSB(v_act_end);
 276         rk610_scaler_write_p0_reg(client, SCL_CON20, &c);
 277     c = SCL_DSP_VACT_END_MSB(v_act_end);
 278         rk610_scaler_write_p0_reg(client, SCL_CON21, &c);
 279
 280     c = SCL_H_BORD_ST_LSB(h_act_st);
 281         rk610_scaler_write_p0_reg(client, SCL_CON22, &c);
 282     c = SCL_H_BORD_ST_MSB(h_act_st);
 283         rk610_scaler_write_p0_reg(client, SCL_CON23, &c);
 284
 285     c = SCL_H_BORD_END_LSB(h_act_end);
 286         rk610_scaler_write_p0_reg(client, SCL_CON24, &c);
 287     c = SCL_H_BORD_END_MSB(h_act_end);
 288         rk610_scaler_write_p0_reg(client, SCL_CON25, &c);
 289
 290     c = SCL_V_BORD_ST(v_act_st);
 291         rk610_scaler_write_p0_reg(client, SCL_CON26, &c);
 292
 293     c = SCL_V_BORD_END_LSB(v_act_end);
 294         rk610_scaler_write_p0_reg(client, SCL_CON27, &c);
 295     c = SCL_V_BORD_END_MSB(v_act_end);
 296         rk610_scaler_write_p0_reg(client, SCL_CON28, &c);
 297
 298         return 0;
 299 }
 300 static int rk610_scaler_chg(struct i2c_client *client ,struct rk29fb_screen *screen)
 301 {
 302
 303     RK610_DBG(&client->dev,"%s screen->hdmi_resolution=%d\n",__FUNCTION__,screen->hdmi_resolution);
 304     rk610_scaler_fator_config(client,screen);
 305     rk610_scaler_enable(client);
 306     rk610_scaler_output_timing_config(client,screen);
 307
 308     return 0;
 309
 310 }
 311 #endif
 312 static int rk610_lcd_scaler_bypass(struct i2c_client *client,bool enable)//enable:0 bypass 1: scale
 313 {
 314     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
 315
 316     rk610_scaler_disable(client);
 317     rk610_scaler_pll_disable(client);
 318
 319     return 0;
 320 }
 321
 322 #ifdef CONFIG_HAS_EARLYSUSPEND
 323 static void rk610_lcd_early_suspend(struct early_suspend *h)
 324 {
 325     struct i2c_client *client = g_lcd_inf->client;
 326     char c;
 327     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
 328     if(g_lcd_inf->screen != NULL){
 329         rk610_output_config(client,g_lcd_inf->screen,LCD_OUT_DISABLE);
 330     }
 331
 332     if(ENABLE == g_lcd_inf->scl_inf.scl_pwr){
 333         c= SCL_BYPASS(1) |SCL_DEN_INV(0) |SCL_H_V_SYNC_INV(0) |SCL_OUT_CLK_INV(0) |SCL_ENABLE(DISABLE);
 334         rk610_scaler_write_p0_reg(client, SCL_CON0, &c);
 335     }
 336     if(ENABLE == g_lcd_inf->scl_inf.pll_pwr ){
 337         c = S_PLL_PWR(1) |S_PLL_RESET(0) |S_PLL_BYPASS(1);
 338             rk610_scaler_write_p0_reg(client, S_PLL_CON2, &c);
 339     }
 340 }
 341
 342 static void rk610_lcd_early_resume(struct early_suspend *h)
 343 {
 344     struct i2c_client *client = g_lcd_inf->client;
 345     char c;
 346     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
 347
 348     if(g_lcd_inf->screen != NULL){
 349         rk610_output_config(client,g_lcd_inf->screen,g_lcd_inf->disp_mode);
 350     }
 351     if(ENABLE == g_lcd_inf->scl_inf.scl_pwr){
 352         c= SCL_BYPASS(0) |SCL_DEN_INV(0) |SCL_H_V_SYNC_INV(0) |SCL_OUT_CLK_INV(0) |SCL_ENABLE(ENABLE);
 353             rk610_scaler_write_p0_reg(client, SCL_CON0, &c);
 354     }
 355     if(ENABLE == g_lcd_inf->scl_inf.pll_pwr ){
 356         c = S_PLL_PWR(1) |S_PLL_RESET(0) |S_PLL_BYPASS(1);
 357             rk610_scaler_write_p0_reg(client, S_PLL_CON2, &c);
 358     }
 359 }
 360 #endif
 361 int rk610_lcd_scaler_set_param(struct rk29fb_screen *screen,bool enable )//enable:0 bypass 1: scale
 362 {
 363     int ret=0;
 364     struct i2c_client *client = g_lcd_inf->client;
 365     if(client == NULL){
 366         printk("%s client == NULL FAIL\n",__FUNCTION__);
 367         return -1;
 368     }
 369     if(screen == NULL){
 370         printk("%s screen == NULL FAIL\n",__FUNCTION__);
 371         return -1;
 372     }
 373     RK610_DBG(&client->dev,"%s \n",__FUNCTION__);
 374
 375     g_lcd_inf->screen = screen;
 376
 377 #if defined(CONFIG_HDMI_DUAL_DISP) || defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)
 378     if(enable == 1){
 379         g_lcd_inf->disp_mode = LCD_OUT_SCL;
 380         rk610_output_config(client,screen,LCD_OUT_SCL);
 381         ret = rk610_scaler_chg(client,screen);
 382         }
 383         else
 384 #endif
 385         {
 386             g_lcd_inf->disp_mode = LCD_OUT_BYPASS;
 387             rk610_output_config(client,screen,LCD_OUT_BYPASS);
 388             ret = rk610_lcd_scaler_bypass(client,enable);
 389         }
 390         return ret;
 391 }
 392 int rk610_lcd_init(struct rk610_core_info *rk610_core_info)
 393 {
 394     if(rk610_core_info->client == NULL){
 395         printk("%s client == NULL FAIL\n",__FUNCTION__);
 396         return -1;
 397     }
 398     RK610_DBG(&rk610_core_info->client->dev,"%s \n",__FUNCTION__);
 399
 400     g_lcd_inf = kmalloc(sizeof(struct rk610_lcd_info), GFP_KERNEL);
 401     if(!g_lcd_inf)
 402     {
 403         dev_err(&rk610_core_info->client->dev, ">> rk610 inf kmalloc fail!");
 404         return -ENOMEM;
 405     }
 406     memset(g_lcd_inf, 0, sizeof(struct rk610_lcd_info));
 407
 408     g_lcd_inf->client= rk610_core_info->client;
 409
 410     rk610_core_info->lcd_pdata = (void *)g_lcd_inf;
 411 #ifdef CONFIG_HAS_EARLYSUSPEND
 412         g_lcd_inf->early_suspend.suspend = rk610_lcd_early_suspend;
 413         g_lcd_inf->early_suspend.resume = rk610_lcd_early_resume;
 414         g_lcd_inf->early_suspend.level = EARLY_SUSPEND_LEVEL_DISABLE_FB- 1;
 415         register_early_suspend(&g_lcd_inf->early_suspend);
 416 #endif
 417     g_lcd_inf->scl_inf.pll_pwr = DISABLE;
 418     g_lcd_inf->scl_inf.scl_pwr = DISABLE;
 419     g_lcd_inf->disp_mode = LCD_OUT_BYPASS;
 420     return 0;
 421 }
 422
 423 static int rk610_lcd_probe(struct platform_device *pdev)
 424 {
 425         struct rk610_core_info *core_info = NULL;
 426         rk_screen *screen = NULL;
 427
 428         core_info = dev_get_drvdata(pdev->dev.parent);
 429         if(!core_info)
 430         {
 431                 dev_err(&pdev->dev,"rk610 core info is null\n");
 432                 return -ENODEV;
 433         }
 434         screen = rk_fb_get_prmry_screen();
 435         if(!screen)
 436         {
 437                 dev_err(&pdev->dev,"the fb prmry screen is null!\n");
 438                 return -ENODEV;
 439         }
 440
 441 #if defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)
 442         screen->sscreen_set = rk610_lcd_scaler_set_param;
 443 #endif
 444         rk610_lcd_init(core_info);
 445         rk610_lcd_scaler_set_param(screen,0);
 446
 447         return 0;
 448
 449 }
 450 static int rk610_lcd_remove(struct platform_device *pdev)
 451 {
 452
 453         return 0;
 454 }
 455
 456 static void rk610_lcd_shutdown(struct platform_device *pdev)
 457 {
 458
 459         return;
 460 }
 461
 462 static struct platform_driver rk610_lcd_driver = {
 463         .driver         = {
 464                 .name   = "rk610-lcd",
 465                 .owner  = THIS_MODULE,
 466         },
 467         .probe          = rk610_lcd_probe,
 468         .remove         = rk610_lcd_remove,
 469         .shutdown       = rk610_lcd_shutdown,
 470 };
 471
 472 static int __init rk610_lcd_module_init(void)
 473 {
 474         return platform_driver_register(&rk610_lcd_driver);
 475 }
 476 fs_initcall(rk610_lcd_module_init);
 477 static void __exit rk610_lcd_exit(void)
 478 {
 479         platform_driver_unregister(&rk610_lcd_driver);
 480 }
 481 module_exit(rk610_lcd_exit);
 482