[mtk]按power键亮屏速度慢问题

 按power键亮屏速度慢问题

原因及解决方法：

各驱动的resume函数里面的延时，还有充电驱动里面的线程的延时需要重新查看，和原始的代码进行比较；除了一些必要的延时，其他的延时都要去掉，还有一些经常打的log也要去掉，加快按power键亮屏的速度。

 

如下代码：

alps\mediatek\custom\common\kernel\lcm\hx8379c_dsi_vdo\hx8379c_dsi_vdo.c

staticstructLCM_setting_tablelcm_sleep_out_setting[] = {

    // Sleep Out

  {0x11, 0, {0x00}},

  {REGFLAG_DELAY, 120, {}}, //150

 

    // Display ON

  {0x29, 0, {0x00}},

  {REGFLAG_DELAY, 10, {}},

 

  {REGFLAG_END_OF_TABLE, 0x00, {}}

};

 

 

alps\mediatek\platform\mt6752\kernel\drivers\power\pmic_chr_type_det.c

static void hw_bc11_init(void)

{

  /*[eton begin]:Modify by jorgenat 2014-11-11

   *[reason]:经测试，在此无需延时300ms，也会造成唤醒速度变慢。

   */

    //msleep(300);

    /*[eton end]*/

Charger_Detect_Init();

 

    //RG_bc11_BIAS_EN=1   

   mt6325_upmu_set_rg_bc11_bias_en(0x1);

    //RG_bc11_VSRC_EN[1:0]=00

   mt6325_upmu_set_rg_bc11_vsrc_en(0x0);

    //RG_bc11_VREF_VTH = [1:0]=00

mt6325_upmu_set_rg_bc11_vref_vth(0x0);

……

}

 

 

alps\mediatek\custom\common\kernel\touchpanel\ft6336_p2\ft6336_ts.c

static  int   tpd_resume(structi2c_client *client)

 {

  intretval = TPD_OK;

char data;

        

   TPD_DEBUG("TPD wake up\n");

 

         #ifdef FTS_GESTURE

                chargesture_close= 0;

                TPD_DMESG("tpd_resumegesture_switch= %d \r\n", gesture_switch);

                printk("tpd_resume()/11\n");

                if (gesture_switch== 1)

                {

                       gesture_switch= 0;

                       printk("%s,setgesture_switchto 0, =%d\n",__func__, gesture_switch);                           

                       i2c_smbus_write_i2c_block_data(i2c_client,0xd0, 1, &gesture_close);

                       printk("tpd_resume()/22\n");

                }

         #endif

 

         #ifdefTPD_CLOSE_POWER_IN_SLEEP 

                              hwPowerOn(TPD_POWER_SOURCE,VOL_3300,"TP");

         #else

                #ifdef MT6573

                              mt_set_gpio_mode(GPIO_CTP_EN_PIN,GPIO_CTP_EN_PIN_M_GPIO);

                mt_set_gpio_dir(GPIO_CTP_EN_PIN,GPIO_DIR_OUT);

                              mt_set_gpio_out(GPIO_CTP_EN_PIN,GPIO_OUT_ONE);

                #endif   

 

                mt_set_gpio_mode(GPIO_CTP_RST_PIN,GPIO_CTP_RST_PIN_M_GPIO);

  mt_set_gpio_dir(GPIO_CTP_RST_PIN,GPIO_DIR_OUT);

  mt_set_gpio_out(GPIO_CTP_RST_PIN,GPIO_OUT_ZERO); 

  //msleep(20); 

  mdelay(10);

  mt_set_gpio_mode(GPIO_CTP_RST_PIN,GPIO_CTP_RST_PIN_M_GPIO);

  mt_set_gpio_dir(GPIO_CTP_RST_PIN,GPIO_DIR_OUT);

  mt_set_gpio_out(GPIO_CTP_RST_PIN,GPIO_OUT_ONE);

  msleep(310);        //是否可以考虑减小？

         #endif

  mt_eint_unmask(CUST_EINT_TOUCH_PANEL_NUM); 

 

         if((i2c_smbus_read_i2c_block_data(i2c_client,0x00, 1, &data))< 0)

                {

                       TPD_DMESG("resumeI2C transfer error, line: %d\n", __LINE__);

                }

                tpd_up(0,0,0);

                input_sync(tpd->dev);

                printk("tpd_resume()/33\n");

                TPD_DMESG("TPDwake up done\n");

               

                gesture_switch =0;

                printk("%s,setgesture_switchto 1, =%d\n",__func__, gesture_switch);

 

         returnretval;

 }

 

 

8.     sdcard热插拔导致系统重启问题

原因分析：

Sdcard的中断脚接上了3.3V的电压，原本是1.8V的IO口，导致了中断脚电源域电压偏高不稳定，导致不可预知的问题，比如GPU传输失败等；

 

解决方法：

去掉Sdcard的中断脚连接的电阻，从硬件上断开，如果只是修改codegen.dws文件还是会存在死机重启问题。

 

 

9.     80%电量拔电池重开机电量显示不足问题

问题原因及解决方法:

当待机电流很大，比如200mA时，需要在系统唤醒的时battery的resume函数里去重新检测电量，然后用这个电量再进行电量计算，代码如蓝色部分：

重新计算电量，才不会导致80%电量200mA待机电流8小时以上，然后拔电池重新开机电量确实3%的低电的情况。

 

 

g_spm_timer = NORMAL_WAKEUP_PERIOD; // 90 min

 

alps\mediatek\kernel\drivers\power\battery_meter_p2.c

staticintbattery_meter_resume(structplatform_device *dev)

{

#if defined(CONFIG_POWER_EXT)

 

#elifdefined(SOC_BY_SW_FG) || defined(SOC_BY_HW_FG)

#if defined(SOC_BY_SW_FG)

  kal_int32 hw_ocv_after_sleep;

#endif

  structtimespecxts, tom,rtc_time_after_sleep;

#ifdef MTK_POWER_EXT_DETECT

  if(KAL_TRUE ==bat_is_ext_power())

         return 0;

#endif

 

  get_xtime_and_monotonic_and_sleep_offset(&xts,&tom, &rtc_time_after_sleep);

  _g_bat_sleep_total_time += rtc_time_after_sleep.tv_sec- g_rtc_time_before_sleep.tv_sec;

  battery_xlog_printk(BAT_LOG_CRTI,"[battery_meter_resume] sleep time = %d, g_spm_timer = %d\n",_g_bat_sleep_total_time, g_spm_timer);

 

#if defined(SOC_BY_HW_FG)

#ifdef MTK_ENABLE_AGING_ALGORITHM

if(bat_is_charger_exist() == KAL_FALSE)

    {

battery_aging_check();

    }

#endif

#endif

  if(_g_bat_sleep_total_time

  // etonguotao 2014-11-03

  // this will keep battery levelno change after sleep long and resume 

  //    return 0;

  }

  bat_spm_timeout = true;

#if defined(SOC_BY_SW_FG)   

  battery_meter_ctrl(BATTERY_METER_CMD_GET_HW_OCV,&hw_ocv_after_sleep);

  if(_g_bat_sleep_total_time>3600)       //1hr

  {

      /*[eton begin]: Modify by Jorgen at2014-7-10

        [reason]:Fixed the problem that thecapacity will keep a long time at one level

       */

  if(hw_ocv_after_sleep !=g_hw_ocv_before_sleep)

         {

                gFG_DOD0 =fgauge_read_d_by_v(hw_ocv_after_sleep);

                oam_d0 = gFG_DOD0;             //etonguotao 2014-11-03

                oam_v_ocv_2 =oam_v_ocv_1 = hw_ocv_after_sleep;

                oam_car_1 =oam_car_1 + (10* (rtc_time_after_sleep.tv_sec -g_rtc_time_before_sleep.tv_sec)/3600);;

                oam_car_2 =oam_car_1 + (10* (rtc_time_after_sleep.tv_sec -g_rtc_time_before_sleep.tv_sec)/3600);;

         }

         else

         {

                oam_car_1 =oam_car_1 + (40* (rtc_time_after_sleep.tv_sec -g_rtc_time_before_sleep.tv_sec)/3600); //0.1mAh

                oam_car_2 =oam_car_2 + (40* (rtc_time_after_sleep.tv_sec -g_rtc_time_before_sleep.tv_sec)/3600); //0.1mAh   

         }

         //etonguotao 2014-11-03

         //if suspend current verylarge, it need reset FG meter data,

         //and calculate batteryvoltage level in resume func.

         if(upmu_is_chr_det() ==KAL_FALSE )

         {

                g_bat_cap_after_sleep= fgauge_read_capacity_by_v(hw_ocv_after_sleep);

                BMT_status.SOC =BMT_status.UI_SOC = g_bat_cap_after_sleep;     

                battery_meter_reset();

         }

  /*[eton end]*/

  }

  else

  {

         oam_car_1 = oam_car_1 +(20* (rtc_time_after_sleep.tv_sec - g_rtc_time_before_sleep.tv_sec)/3600);//0.1mAh

         oam_car_2 = oam_car_2 +(20* (rtc_time_after_sleep.tv_sec - g_rtc_time_before_sleep.tv_sec)/3600);//0.1mAh   

  }

  bm_print(BM_LOG_CRTI,"sleeptime=(%d)s, be_ocv=(%d), af_ocv=(%d), D0=(%d), car1=(%d), car2=(%d)\n",

         rtc_time_after_sleep.tv_sec- g_rtc_time_before_sleep.tv_sec, g_hw_ocv_before_sleep, hw_ocv_after_sleep,gFG_DOD0, oam_car_1, oam_car_2);

#endif

#endif

bm_print(BM_LOG_CRTI, "[battery_meter_resume].--eton--oam_v_ocv_2=%d, oam_v_ocv_1=%d, oam_car_1=%d, oam_car_2=%d\n",

                                            oam_v_ocv_2,oam_v_ocv_1, oam_car_1, oam_car_2);

  return 0;

}

 

10.  开关机充电曲线差异较大问题

原因及解决方法:

1）、P2采用的是脉冲充电的方式，充9秒钟，然后停1秒钟的形式，d5_count_time决定充电的每一步的时间，稍微增加d5_count_time值，可以使充电曲线变得平滑，但是不能加得过大，否则会导致电压上升太高，而显示示数确很低；

 

 

Void  oam_run(void)

{

…

if(gFG_Is_Charging == KAL_FALSE)

    {

         d5_count_time = 80;         //eton update by jorgen at 2014-7-10

        d5_count_soc_99 = 0;

    }

    /*[eton end]*/

else

    {

charging_current = get_charging_setting_current();  

charging_current = charging_current / 100;

 //       charging_current -= 150;             //BMT_status.ICharging;

        d5_count_time_rate =(((gFG_BATT_CAPACITY_aging*60*60/100/(charging_current-50))*10)+5)/10;

 

if(d5_count_time_rate < 1)

            d5_count_time_rate =1;

    //调节d5_count_time的值，可以调节充电的每一步的时间，

   //如果d5_count_time = 80，那么充电的每一步的检测时间是：80秒

   //如果80秒之后，电压达到了预定的电池曲线的电压值，电量就会加1

        d5_count_time =d5_count_time_rate;

}

…

   }