bq25703a 寄存器有写otg模式，vbus没有5V电压输出。怎么去排查问题

[ 6384.642211] REG0x0 : 0x20e
[ 6384.642426] REG0x2 : 0x0
[ 6384.642668] REG0x4 : 0x2200
[ 6384.642991] REG0x6 : 0x200
[ 6384.643400] REG0x8 : 0xa00
[ 6384.643806] REG0xa : 0x0
[ 6384.644283] REG0xc : 0x1600
[ 6384.644585] REG0xe : 0xa00
[ 6384.644798] REG0x20 : 0x2000
[ 6384.645006] REG0x22 : 0x0
[ 6384.645212] REG0x24 : 0xa00
[ 6384.645418] REG0x26 : 0x0
[ 6384.645623] REG0x28 : 0x1
[ 6384.645828] REG0x2a : 0x0
[ 6384.646166] REG0x2c : 0x4848
[ 6384.646380] REG0x2e : 0x7840
[ 6384.646694] REG0x30 : 0x210
[ 6384.646953] REG0x32 : 0x2b7
[ 6384.647202] REG0x34 : 0x1000
[ 6384.647448] REG0x36 : 0x4a54
[ 6384.647715] REG0x38 : 0x8120
[ 6384.647933] REG0x3a : 0xa0ff

使能otg寄存器配置

[ 6447.340010] REG0x0 : 0x20e
[ 6447.340217] REG0x2 : 0x0
[ 6447.340417] REG0x4 : 0x2200
[ 6447.340620] REG0x6 : 0x200
[ 6447.340826] REG0x8 : 0xa00
[ 6447.341196] REG0xa : 0x0
[ 6447.341391] REG0xc : 0x1600
[ 6447.341585] REG0xe : 0xa00
[ 6447.341782] REG0x20 : 0x2000
[ 6447.341977] REG0x22 : 0x0
[ 6447.342173] REG0x24 : 0xa00
[ 6447.342370] REG0x26 : 0x0
[ 6447.342560] REG0x28 : 0x1
[ 6447.342833] REG0x2a : 0x0
[ 6447.343255] REG0x2c : 0x4848
[ 6447.343766] REG0x2e : 0x7840
[ 6447.344034] REG0x30 : 0x210
[ 6447.344237] REG0x32 : 0x2b7
[ 6447.344443] REG0x34 : 0x0
[ 6447.344649] REG0x36 : 0x4a54
[ 6447.344849] REG0x38 : 0x8120
[ 6447.345054] REG0x3a : 0xa0ff

这是拔下的

[ 206.559504] REG0x20 : 0x2000
[ 206.559903] REG0x21 : 0x20
[ 206.560101] REG0x22 : 0x0
[ 206.560361] REG0x23 : 0x0
[ 206.560593] REG0x24 : 0xa00
[ 206.560830] REG0x25 : 0xa
[ 206.561062] REG0x26 : 0x0
[ 206.561290] REG0x27 : 0x100
[ 206.561521] REG0x28 : 0x1
[ 206.561717] REG0x29 : 0x0
[ 206.561969] REG0x2a : 0x0
[ 206.562194] REG0x2b : 0x4800
[ 206.562438] REG0x2c : 0x4848
[ 206.562674] REG0x2d : 0x4048
[ 206.562906] REG0x2e : 0x7840
[ 206.563133] REG0x2f : 0x1078
[ 206.563375] REG0x30 : 0x210
[ 206.563603] REG0x31 : 0xb702
[ 206.563904] REG0x32 : 0x2b7
[ 206.564330] REG0x33 : 0x2
[ 206.564539] REG0x34 : 0x1000
[ 206.564740] REG0x35 : 0x5410
[ 206.565002] REG0x36 : 0x4a54
[ 206.565227] REG0x37 : 0x204a
[ 206.565451] REG0x38 : 0x8120
[ 206.565690] REG0x39 : 0xff81
[ 206.565919] REG0x3a : 0xa0ff
[ 206.566159] REG0x3b : 0xffa0

[ 234.120472] REG0x20 : 0x2000
[ 234.120709] REG0x21 : 0x20
[ 234.121052] REG0x22 : 0x0
[ 234.121281] REG0x23 : 0x0
[ 234.121489] REG0x24 : 0xa00
[ 234.121695] REG0x25 : 0xa
[ 234.121970] REG0x26 : 0x0
[ 234.122180] REG0x27 : 0x100
[ 234.122384] REG0x28 : 0x1
[ 234.122587] REG0x29 : 0x0
[ 234.122791] REG0x2a : 0x0
[ 234.122994] REG0x2b : 0x4800
[ 234.123195] REG0x2c : 0x4848
[ 234.123388] REG0x2d : 0x4048
[ 234.123585] REG0x2e : 0x7840
[ 234.123790] REG0x2f : 0x1078
[ 234.123991] REG0x30 : 0x210
[ 234.124196] REG0x31 : 0xb702
[ 234.124513] REG0x32 : 0x2b7
[ 234.124742] REG0x33 : 0x2
[ 234.124969] REG0x34 : 0x0
[ 234.125196] REG0x35 : 0x5400
[ 234.125433] REG0x36 : 0x4a54
[ 234.125671] REG0x37 : 0x204a
[ 234.125871] REG0x38 : 0x8120
[ 234.126069] REG0x39 : 0xff81
[ 234.126268] REG0x3a : 0xa0ff
[ 234.126466] REG0x3b : 0xffa0

[ 206.564539] REG0x34 : 0x1000
[ 206.564740] REG0x35 : 0x5410

reg34 reg35寄存器有变化

其他是一样的

Johnsin Tao：

Hi

   能否详细描述一下你的操作？  

   或者检查确认如下：

   

user5404420：

回复 Johnsin Tao:

感谢您的回复，我已经找到问题点了，谢谢！