请教一下大家，电源芯片与触摸芯片在同一个IIC上，现在启动不了，还导致触摸屏注册失败。
这是为什么？
[ 1.052101] hy46xx_ts_init xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
[ 1.059502] Successfully added driver hy46xx_ts
[ 1.064630] sun6i-rtc 1c20400.rtc: rtc core: registered rtc-sun6i as rtc0
[ 1.071513] sun6i-rtc 1c20400.rtc: RTC enabled
[ 1.076066] i2c /dev entries driver
[ 1.080955] i2c i2c-0: Failed to register i2c client hy46xx_ts at 0x38 (-16)
[ 1.088183] i2c i2c-0: of_i2c: Failure registering /soc/i2c@01c2ac00/hycon@38
[ 1.095312] i2c i2c-0: Failed to create I2C device for /soc/i2c@01c2ac00/hycon@38
[ 1.103009] i2c driver name i2c_device_probe xxxxxxxxxxxxxxxxxxxxxxxxx
[ 1.109658] i2c driver name = c0805f74 xxxxxxxxxxxxxxxxxxxxxxxxx
[ 1.115873] axp20x_i2c_probe xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
[ 1.121648] axp20x-i2c 0-0034: AXP20x variant AXP209 found
[ 1.135023] ldo1: supplied by regulator-dummy
[ 1.139844] ldo2: supplied by regulator-dummy
[ 1.145390] ldo3: supplied by regulator-dummy
[ 1.150672] ldo4: supplied by regulator-dummy
[ 1.155295] ldo5: supplied by regulator-dummy
[ 1.160912] dcdc2: supplied by regulator-dummy
[ 1.166068] dcdc3: supplied by regulator-dummy
[ 1.172336] axp20x-i2c 0-0034: AXP20X driver loaded
[ 1.178653] sunxi-wdt 1c20ca0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)
[ 1.187939] GPIO lookup for consumer cd
[ 1.191798] GPIO lookup for consumer wp
[ 1.246738] sunxi-mmc 1c0f000.mmc: base:0xc41fc000 irq:23
[ 1.253820] usbcore: registered new interface driver usbhid
[ 1.259492] usbhid: USB HID core driver
[ 1.270782] NET: Registered protocol family 17
[ 1.275343] Key type dns_resolver registered
[ 1.279871] Registering SWP/SWPB emulation handler
[ 1.289297] 222222222222222222222 simplefb_probe 33333333333333333333333333333
[ 1.296933] simple-framebuffer 43e89000.framebuffer: framebuffer at 0x43e89000, 0x177000 bytes, mapped to 0xc4380000
[ 1.307504] simple-framebuffer 43e89000.framebuffer: format=x8r8g8b8, mode=800x480x32, linelength=3200
[ 1.316819] xxxxxxxxxxxxxxxxxxxxxxxxxxx info->fix.smem_len = 1536000
[ 1.331726] Console: switching to colour frame buffer device 100x30
[ 1.344121] simple-framebuffer 43e89000.framebuffer: fb0: simplefb registered!
[ 1.351602] GPIO lookup for consumer usb0_id_det
[ 1.356284] GPIO lookup for consumer usb0_vbus_det
[ 1.362228] usb_phy_generic usb_phy_generic.0.auto: usb_phy_generic.0.auto supply vcc not found, using dummy regulator
[ 1.373624] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
[ 1.379469] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 3
[ 1.389922] hub 3-0:1.0: USB hub found
[ 1.395868] hub 3-0:1.0: 1 port detected
[ 1.401050] using random self ethernet address
[ 1.405509] using random host ethernet address
[ 1.410998] usb0: HOST MAC b2:b2:f1:7b:92:58
[ 1.415321] usb0: MAC 22:31:d4:6c:34:04
[ 1.419311] g_cdc gadget: CDC Composite Gadget, version: King Kamehameha Day 2008
[ 1.426826] g_cdc gadget: g_cdc ready
[ 1.430768] sun6i-rtc 1c20400.rtc: setting system clock to 1970-01-01 00:36:54 UTC (2214)
[ 1.439238] vcc3v0: disabling
[ 1.442215] vcc5v0: disabling
[ 1.445190] ldo2: disabling
[ 1.4
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触摸芯片的问题是因为我把多个芯片打开了，注释掉就没事了。现在没有问题了。只有
[ 1.439238] vcc3v0: disabling
[ 1.442215] vcc5v0: disabling
[ 1.445190] ldo2: disabling
这个问题了。主要还是不知道AXP这个芯片怎么工作的。
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程序跑不下去了。死在这里了。卡死。像是被人为的关闭了那个３V。
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[ 1.115873] axp20x_i2c_probe xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
[ 1.121648] axp20x-i2c 0-0034: AXP20x variant AXP209 found
[ 1.135023] ldo1: supplied by regulator-dummy
[ 1.139844] ldo2: supplied by regulator-dummy
[ 1.145390] ldo3: supplied by regulator-dummy
[ 1.150672] ldo4: supplied by regulator-dummy
[ 1.155295] ldo5: supplied by regulator-dummy
[ 1.160912] dcdc2: supplied by regulator-dummy
[ 1.166068] dcdc3: supplied by regulator-dummy
[ 1.172336] axp20x-i2c 0-0034: AXP20X driver loaded
这一段中，这个regulator-dummy 是正常的吗
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jimmy，，，你好，能在QQ上和你交流吗？谢谢
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我也觉得应该不对。但我不知道如何去改，我感觉应该改ｄｔｓ这一部分：
regulators {
/* Default work frequency for buck regulators */
x-powers,dcdc-freq = <1500>;
reg_dcdc2: dcdc2 {
regulator-name = "dcdc2";
};
reg_dcdc3: dcdc3 {
regulator-name = "dcdc3";
};
reg_ldo1: ldo1 {
/* LDO1 is a fixed output regulator */
regulator-always-on;
regulator-name = "ldo1";
};
reg_ldo2: ldo2 {
regulator-name = "ldo2";
};
reg_ldo3: ldo3 {
regulator-name = "ldo3";
};
reg_ldo4: ldo4 {
regulator-name = "ldo4";
};
reg_ldo5: ldo5 {
regulator-name = "ldo5";
/*status = "disabled";*/
};
};
但又没有参考资料
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现在已经能进到console了，但是不知道如何测试电量。
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呃。写在另一个帖子里了。说一下解决方法：
1，我在每一个名称后添加了最大最小电压值，这个是根据手册上来的，但没有用。依然出错。然后不死心，每几个加上了regulator-always-on; 结果就OK了。之所以加这个，是因为它报错时有disable 所以我想加一下always on试试，不让它关闭。结果是正确的。现在的问题是不知道如何读电量。因为/dev/下没有input/， 更没有event0,这个比较坑爹。。。
regulators {
/* Default work frequency for buck regulators */
x-powers,dcdc-freq = <1500>;
reg_dcdc2: dcdc2 {
regulator-name = "dcdc2";
regulator-always-on;
regulator-min-microvolt = <700000>;
regulator-max-microvolt = <2275000>;
};
reg_dcdc3: dcdc3 {
regulator-name = "dcdc3";
regulator-always-on;
regulator-min-microvolt = <700000>;
regulator-max-microvolt = <3500000>;
};
reg_ldo1: ldo1 {
/* LDO1 is a fixed output regulator */
regulator-always-on;
regulator-name = "ldo1";
regulator-min-microvolt = <1300000>;
regulator-max-microvolt = <1300000>;
};
reg_ldo2: ldo2 {
regulator-name = "ldo2";
regulator-always-on;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
};
reg_ldo3: ldo3 {
regulator-name = "ldo3";
regulator-min-microvolt = <700000>;
regulator-max-microvolt = <3500000>;
};
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