MHL供电

1、 修改 Hdmi_drv.c 如下: 


a. 修改 hdmi_drv_power_on() : 


/* note: Tue, 21 May 2013 22:35:29 +0800 
* TODO: replace this line with your comment 
*/ 


printk("~~TurnOn VGP5 in hdmi_drv_power_on() \n"); //======= add ========== 
hwPowerOn(MT65XX_POWER_LDO_VGP5, VOL_1200, "HDMI"); 
// End of note: note


b. 修改 hdmi_drv_power_off () : 


/*  on: Tue, 21 May 2013 22:38:24 +0800 
* TODO: replace this line with your comment 
*/ 


printk("~~TurnOff VGP5 in hdmi_drv_power_off() \n"); //======= add ========== 
hwPowerDown(MT65XX_POWER_LDO_VGP5, "HDMI"); 
// End of note: note


c. 修改 void hdmi_drv_suspend(void) 

hdmi_drv_power_off(); //====== add ========= 

d. 修改 void hdmi_drv_resume(void) 

hdmi_drv_power_on(); //====== add ========= 

2、修改 mediatek/platform/mt6589/kernel/core/mt_pm_ldo.c 如下: 


a. 修改 bool hwPowerOn(MT65XX_POWER powerId, MT65XX_POWER_VOLTAGE powerVolt, char *mode_name) 

UINT32 i = 0; 
int j=0, k=0; 


//{============ add begin =========== 
if((MT65XX_POWER==MT65XX_POWER_LDO_VGP5)&&(first_power_on_flag==0)) 

xlog_printk(ANDROID_LOG_INFO,"Set VGP5 to %d name: %s ,PowerUsageCounter=%d \n",powerVolt,mode_name,g_MT_PMIC_BusHW.Power[powerId].dwPowerCount);



//============ add end ===========} 






if(first_power_on_flag == 1) 
{
for(j=0 ; j<MT65XX_POWER_COUNT_END ; j++) 


b. 修改 bool hwPowerDown(MT65XX_POWER powerId, char *mode_name) 

UINT32 i; 
#if 1
BOOL bFind = FALSE; 


//{============ add begin =========== 
if((MT65XX_POWER==MT65XX_POWER_LDO_VGP5)&&(first_power_on_flag==0)) 

xlog_printk(ANDROID_LOG_INFO,"To TurnOff VGP5 PowerUsageCounter=%d \n",g_MT_PMIC_BusHW.Power[powerId].dwPowerCount); 



//============ add end ===========} 








if(powerId >= MT65XX_POWER_COUNT_END) 

MSG(PMIC,"%s:%s:%d powerId:%d is wrong\r\n",__FILE__,__FUNCTION__, 
__LINE__ , powerId); 
return FALSE; 





if(powerId >= MT65XX_POWER_COUNT_END) 

MSG(PMIC,"%s:%s:%d powerId:%d is wrong\r\n",__FILE__,__FUNCTION__, 
__LINE__ , powerId); 
return FALSE; 

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