[Letux-kernel] Charging on GTA04
H. Nikolaus Schaller
hns at goldelico.com
Sun Jun 26 21:15:13 CEST 2016
> Am 26.06.2016 um 19:36 schrieb H. Nikolaus Schaller <hns at goldelico.com>:
>
>
>> Am 26.06.2016 um 18:43 schrieb H. Nikolaus Schaller <hns at goldelico.com>:
>>
>>
>>> Am 26.06.2016 um 18:07 schrieb H. Nikolaus Schaller <hns at goldelico.com>:
>>>
>>>
>>>> Am 26.06.2016 um 17:12 schrieb H. Nikolaus Schaller <hns at goldelico.com>:
>>>>
>>>>
>>>>> Am 26.06.2016 um 15:01 schrieb H. Nikolaus Schaller <hns at goldelico.com>:
>>>>>
>>>>>
>>>>>> Am 24.06.2016 um 10:03 schrieb H. Nikolaus Schaller <hns at goldelico.com>:
>>>>>>
>>>>>> Hi,
>>>>>> it appears as if USB detection is now completely broken on -rc4...
>>>>>>
>>>>>> I have two boards where I neither get some "USB plugged in" nor
>>>>>> does /sys/class/power/usb start charging.
>>>>>>
>>>>>> Something has gone wild.
>>>>>>
>>>>>> Does it work for anyone of you?
>>>>>
>>>>> Here some observations to this problem (using letux-4.7-rc4):
>>>>>
>>>>> root at letux:/sys/class/power_supply/twl4030_usb# cat uevent
>>>>> POWER_SUPPLY_NAME=twl4030_usb
>>>>> POWER_SUPPLY_STATUS=Not charging
>>>>> POWER_SUPPLY_ONLINE=0
>>>>> POWER_SUPPLY_INPUT_CURRENT_LIMIT=841
>>>>> root at letux:/sys/class/power_supply/twl4030_usb# echo continuous >mode
>>>>> root at letux:/sys/class/power_supply/twl4030_usb# cat mode
>>>>> off auto [continuous]
>>>>> root at letux:/sys/class/power_supply/twl4030_usb# cat uevent
>>>>> POWER_SUPPLY_NAME=twl4030_usb
>>>>> POWER_SUPPLY_STATUS=Charging
>>>>> POWER_SUPPLY_ONLINE=1
>>>>> POWER_SUPPLY_VOLTAGE_NOW=0
>>>>> POWER_SUPPLY_CURRENT_NOW=12474
>>>>> POWER_SUPPLY_INPUT_CURRENT_LIMIT=841
>>>>> root at letux:/sys/class/power_supply/twl4030_usb# echo auto >mode
>>>>> [ 189.735412] twl4030_bci 48070000.i2c:twl at 48:bci: battery temperature out of range
>>>>> [ 189.766967] twl4030_bci 48070000.i2c:twl at 48:bci: battery temperature out of range
>>>>> root at letux:/sys/class/power_supply/twl4030_usb# cat uevent
>>>>> POWER_SUPPLY_NAME=twl4030_usb
>>>>> POWER_SUPPLY_STATUS=Not charging
>>>>> POWER_SUPPLY_ONLINE=0
>>>>> POWER_SUPPLY_INPUT_CURRENT_LIMIT=841
>>>>> root at letux:/sys/class/power_supply/twl4030_usb#
>>>>>
>>>>> This means:
>>>>> 1. "auto" mode is broken
>>>>> 2. continuous mode seems to charge
>>>>> 3. switching back to auto mode gives strange "battery temperature out of range" warning
>>>>>
>>>>> And I have no ethernet-gadget.
>>>>>
>>>>> I think I should compare with letux-4.6.0 or other -rc. And I should enable debugging
>>>>> of the driver.
>>>>
>>>> Well, 4.6.0 isn't charging as well (and no ethernet gadget). And older versions are not properly booting.
>>>>
>>>> One strange observation:
>>>>
>>>> root at letux:~# cat /sys/class/power_supply/twl4030_usb/voltage_now
>>>> 0
>>>> root at letux:~# cat /sys/class/power_supply/twl4030_usb/uevent
>>>> POWER_SUPPLY_NAME=twl4030_usb
>>>> POWER_SUPPLY_STATUS=Charging
>>>> POWER_SUPPLY_ONLINE=1
>>>> POWER_SUPPLY_VOLTAGE_NOW=0
>>>> POWER_SUPPLY_CURRENT_NOW=808476
>>>> POWER_SUPPLY_INPUT_CURRENT_LIMIT=798505
>>>> root at letux:~#
>>>>
>>>> This means that voltage_now and POWER_SUPPLY_VOLTAGE_NOW is 0 although charging!
>>>>
>>>> This is definitively different to 4.6.0 where USB voltage is displayed.
>>>>
>>>> Is perhaps the madc broken?
>>>
>>> Yes and no...
>>>
>>> This is what I get with #define DEBUG
>>>
>>> root at letux:~# dmesg|fgrep bci
>>> [ 8.864227] driver_register 'twl4030_bci'
>>> [ 8.864868] twl4030_bci_probe
>>> [ 8.864959] twl4030_bci_probe: of_find_compatible_node
>>> [ 8.865020] devm_usb_get_phy_by_node(ddcd2410 48070000.i2c:twl at 48:bci, df9b1af4 twl4030-usb, ddfad020)
>>> [ 8.865051] bci->transceiver = fffffdfb
>>> [ 8.943939] twl4030_bci_probe
>>> [ 8.944000] twl4030_bci_probe: of_find_compatible_node
>>> [ 8.944061] devm_usb_get_phy_by_node(ddcd2410 48070000.i2c:twl at 48:bci, df9b1af4 twl4030-usb, ddfad020)
>>> [ 8.944091] bci->transceiver = fffffdfb
>>> [ 8.953796] twl4030_bci_probe
>>> [ 8.953857] twl4030_bci_probe: of_find_compatible_node
>>> [ 8.953918] devm_usb_get_phy_by_node(ddcd2410 48070000.i2c:twl at 48:bci, df9b1af4 twl4030-usb, ddfad220)
>>> [ 8.953948] bci->transceiver = fffffdfb
>>> [ 8.973114] twl4030_bci_probe
>>> [ 8.973175] twl4030_bci_probe: of_find_compatible_node
>>> [ 8.973236] devm_usb_get_phy_by_node(ddcd2410 48070000.i2c:twl at 48:bci, df9b1af4 twl4030-usb, ddfad220)
>>> [ 8.973266] bci->transceiver = fffffdfb
>>> [ 8.988189] twl4030_bci_probe
>>> [ 8.988250] twl4030_bci_probe: of_find_compatible_node
>>> [ 8.988311] devm_usb_get_phy_by_node(ddcd2410 48070000.i2c:twl at 48:bci, df9b1af4 twl4030-usb, ddd99320)
>>> [ 8.988342] bci->transceiver = fffffdfb
>>> [ 9.232696] twl4030_bci_probe
>>> [ 9.232788] twl4030_bci_probe: of_find_compatible_node
>>> [ 9.232849] devm_usb_get_phy_by_node(ddcd2410 48070000.i2c:twl at 48:bci, df9b1af4 twl4030-usb, ddd99320)
>>> [ 9.232849] bci->transceiver = fffffdfb
>>> [ 9.238159] twl4030_bci_probe
>>> [ 9.238250] twl4030_bci_probe: of_find_compatible_node
>>> [ 9.238281] devm_usb_get_phy_by_node(ddcd2410 48070000.i2c:twl at 48:bci, df9b1af4 twl4030-usb, ddfad020)
>>> [ 9.238311] bci->transceiver = fffffdfb
>>> [ 9.396270] twl4030_bci_probe
>>> [ 9.396362] twl4030_bci_probe: of_find_compatible_node
>>> [ 9.396392] devm_usb_get_phy_by_node(ddcd2410 48070000.i2c:twl at 48:bci, df9b1af4 twl4030-usb, dcac2f20)
>>> [ 9.396423] bci->transceiver = fffffdfb
>>> [ 9.424865] twl4030_bci_probe
>>> [ 9.424957] twl4030_bci_probe: of_find_compatible_node
>>> [ 9.424987] devm_usb_get_phy_by_node(ddcd2410 48070000.i2c:twl at 48:bci, df9b1af4 twl4030-usb, ddfad020)
>>> [ 9.425018] bci->transceiver = fffffdfb
>>> [ 9.477874] twl4030_bci_probe
>>> [ 9.477966] twl4030_bci_probe: of_find_compatible_node
>>> [ 9.477996] devm_usb_get_phy_by_node(ddcd2410 48070000.i2c:twl at 48:bci, df9b1af4 twl4030-usb, ddfad120)
>>> [ 9.478027] bci->transceiver = fffffdfb
>>> [ 9.530670] twl4030_bci_probe
>>> [ 9.530761] twl4030_bci_probe: of_find_compatible_node
>>> [ 9.530822] devm_usb_get_phy_by_node(ddcd2410 48070000.i2c:twl at 48:bci, df9b1af4 twl4030-usb, ddfad720)
>>> [ 9.530853] bci->transceiver = dca39410
>>> [ 9.530883] twl4030_bci 48070000.i2c:twl at 48:bci: could not request vac iio channel -19
>>> [ 9.546997] twl4030_bci 48070000.i2c:twl at 48:bci: transceiver = dca39410
>>> [ 9.546997] twl4030_bci 48070000.i2c:twl at 48:bci: OTG notify 0
>>> [ 9.548370] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 9.549224] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 9.549804] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 9.550292] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 9.550781] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 9.551300] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 9.552612] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 9.553131] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 9.553558] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 9.554046] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 9.554534] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 9.554992] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 9.626617] twl4030_bci 48070000.i2c:twl at 48:bci: v=0 cur=-850000 limit=0 target=500000
>>> [ 10.615722] twl4030_bci 48070000.i2c:twl at 48:bci: OTG notify 2
>>> [ 12.135711] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.136260] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.136840] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.137390] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.137817] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.139190] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.139678] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.140136] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.140563] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.141021] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.143005] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.143524] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.143951] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.144409] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.144866] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.146545] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.146972] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.147460] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.147918] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.165832] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.168548] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.169006] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.169433] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.169860] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.170288] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.198486] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.201812] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.202239] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.202697] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.203155] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.211883] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.212341] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.212799] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.213226] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.213684] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.216888] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.217437] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.217895] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.219116] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.219635] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.419799] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.423065] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.423522] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.423980] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.424438] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.426727] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.427215] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.427642] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.428100] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.428558] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.430541] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.431182] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.431610] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.432067] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.432525] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.447662] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.448211] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.448669] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.449127] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 12.449554] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> root at letux:~#
>>>
>>> root at letux:~# echo auto >/sys/class/power_supply/twl4030_usb/mode
>>> [ 280.254119] twl4030_bci 48070000.i2c:twl at 48:bci: BCI irq 00 08
>>> [ 280.266662] twl4030_bci 48070000.i2c:twl at 48:bci: BCI irq 00 08
>>> [ 280.279632] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> root at letux:~# [ 280.288757] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.294769] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.303192] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.311340] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.319427] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.327392] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.334716] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.342620] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.356506] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.370605] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.387207] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.393249] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.403289] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.409912] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.418304] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.427124] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.439941] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.447601] twl4030_bci 48070000.i2c:twl at 48:bci: v=0 cur=9150 limit=0 target=500000
>>> [ 280.452423] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.461273] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.465728] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.466339] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.466888] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.467437] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.467926] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.476196] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.488464] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.490081] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.502502] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.514495] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.557800] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.576171] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.586883] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.607116] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.622772] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.629150] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.638549] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.646270] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.652954] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.659973] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.667388] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.674468] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.681243] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.689605] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.700714] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.708557] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.716094] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.722961] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.731384] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.739349] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.747070] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.754119] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 280.761901] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>>
>>> root at letux:~# echo continuous >/sys/class/power_supply/twl4030_usb/mode
>>> root at letux:~# [ 324.358245] twl4030_bci 48070000.i2c:twl at 48:bci: BCI irq 00 10
>>> [ 324.371276] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.378295] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.385040] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.394165] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.401306] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.402191] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.414855] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.426727] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.441223] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.447875] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.455444] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.463897] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.471313] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.479522] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.488952] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.497528] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.511199] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.522888] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.534454] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.544067] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.551605] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.558898] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.566894] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.573669] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.581848] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.589080] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.597717] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.652496] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.659973] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.667877] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.677307] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>> [ 324.686981] twl4030_bci 48070000.i2c:twl at 48:bci: state: 00
>>>
>>> Really interesting is
>>>
>>> [ 9.530883] twl4030_bci 48070000.i2c:twl at 48:bci: could not request vac iio channel -19
>>>
>>> Which means there is some error in the madc iio subsystem at that stage.
>>
>> Well, the bug is in one of our DT patches:
>>
>> <http://git.goldelico.com/?p=gta04-kernel.git;a=blob;f=arch/arm/boot/dts/twl4030.dtsi;h=0c862d2d7b5aa7e8460b91d143d6245a5c5a8da8;hb=f704c620abd294972e754c8b59a085191e411da8#l27>
>>
>> this line should read
>>
>> io-channel-names = "vac";
>>
>>>
>>> The second observation is that there is nothing happening on USB plug/unplug.
>>>
>>> IMHO USB-Plug detection is also broken (don't know if hw or software).
>>
>> Interestingly, I see different OTG notify values depending on whether
>> the cable is plugged in during boot or not. But no new notifications if I
>> unplug the cable.
>>
>> Well, that is only part of the truth:
>>
>> * if I take a short USB cable I can see notify 0 and notify 2 (but still no charging nor ethernet gadget)
>> * if I take a long cable and plug/unplug at the hub end, I don't see notifications
>> * if I take a long cable and plug/unplug at the gta04 end, I see notifications
>>
>> * MADC reports some mV only for VBUS
>>
>> That is really weird.
>>
>> What could this be (if not a hardware problem)?
>
> unlikely. I have swapped the SD card to a different GTA04 and it shows the same effects
> (long vs. short cable, no charging).
>
> So please help to fix this!
I am so focussed on that since it seems for me to be the biggest GTA04 blocking point at the moment...
The more people look into it, the higher the likelihood to find the issue quickly :)
Regarding the charging topic, I have done another test. Boot a letux-base kernel (i.e. no special
feature patches merged). Doesn't work either. And HDQ is also broken there.
Interestingly, we have no big diff to linus/v4.7-rc4 any more, so that we come closer to the point where
letux-base === linus/master + config:
(hns$ git diff v4.7-rc4 --name-only | fgrep -v Letux/ | fgrep -v sound/ | fgrep -v drivers/gpu | fgrep -v arch/arm/boot/dts | fgrep -v Documentation/ | fgrep -v arch/mips
arch/arm/configs/letux_defconfig
arch/arm/mach-omap2/clock.c
arch/arm/mach-omap2/display.c
arch/arm/mach-omap2/omap_device.c
arch/arm/mach-omap2/powerdomains3xxx_data.c
crypto/asymmetric_keys/Kconfig
drivers/extcon/extcon-gpio.c
drivers/hwmon/twl4030-madc-hwmon.c
drivers/input/keyboard/gpio_keys.c
drivers/input/misc/bma150.c
drivers/input/misc/twl4030-pwrbutton.c
drivers/mfd/twl4030-audio.c
drivers/mfd/twl4030-power.c
drivers/mmc/core/core.c
drivers/mmc/core/slot-gpio.c
drivers/mtd/ubi/io.c
drivers/net/wireless/marvell/libertas/if_sdio.c
drivers/phy/phy-twl4030-usb.c
drivers/power/twl4030_madc_battery.c
drivers/regulator/tps6105x-regulator.c
drivers/tty/serial/omap-serial.c
drivers/usb/musb/musb_core.c
drivers/usb/musb/omap2430.c
drivers/video/Kconfig
fs/proc/stat.c
include/linux/i2c/bmp085.h
include/linux/mmc/slot-gpio.h
include/linux/platform_data/omap-pwm.h
include/linux/platform_data/omap-twl4030.h
include/linux/platform_data/serial-omap.h
kernel/irq/pm.c
scripts/sortextable.c
Thats it!
Our letux-base isn't very far away from linus/master and some diffs appear to even
be obsolete (e.g. include/linux/i2c/bmp085.h, include/linux/platform_data/omap-pwm.h,
drivers/power/twl4030_madc_battery.c or drivers/usb/musb/omap2430.c).
I have looked deeper into these diffs:
drivers/hwmon/twl4030-madc-hwmon.c
drivers/mfd/twl4030-power.c
drivers/phy/phy-twl4030-usb.c
drivers/power/twl4030_madc_battery.c
include/linux/platform_data/omap-twl4030.h
They are mostly DT extensions or minor configs.
Only drivers/phy/phy-twl4030-usb.c has a bigger difference,
which is mainly about additional sysfs properties (e.g. USB ID pin status).
Hm. If it is not (likely) in the files, it must be in our DT and/or Letux_defconfig.
An idea welcome! Especially why 4.6.0 reports correct VBUS and 4.7-rc4 reports 0mV.
Any patch in linus/master that could have this effect?
BR,
Nikolaus
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