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Message-ID: <924db470-8163-4454-8f59-f7372a132186@notapiano> Date: Thu, 9 May 2024 11:25:50 -0400 From: Nícolas F. R. A. Prado <nfraprado@...labora.com> To: Hsin-Te Yuan <yuanhsinte@...omium.org> Cc: Sebastian Reichel <sre@...nel.org>, kernel@...labora.com, linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, Pin-yen Lin <treapking@...omium.org> Subject: Re: [PATCH v3] power: supply: sbs-battery: Handle unsupported PROP_TIME_TO_EMPTY_NOW On Mon, Apr 22, 2024 at 04:10:23PM +0800, Hsin-Te Yuan wrote: > On Sat, Apr 20, 2024 at 12:03 AM Nícolas F. R. A. Prado > <nfraprado@...labora.com> wrote: > > > > On Thu, Apr 18, 2024 at 01:34:23PM -0400, Nícolas F. R. A. Prado wrote: > > > Despite the RunTimeToEmpty() (0x11) function being defined in the SBS > > > specification as required, it seems that not all batteries implement it. > > > On platforms with such batteries, reading the property will cause an > > > error to be printed: > > > > > > power_supply sbs-8-000b: driver failed to report `time_to_empty_now' property: -5 > > > > > > This not only pollutes the log, distracting from real problems on the > > > device, but also prevents the uevent file from being read since it > > > contains all properties, including the faulty one. > > > > > > The following table summarizes the findings for a handful of platforms: > > > > > > Platform Status Manufacturer Model > > > ------------------------------------------------------------------------ > > > mt8186-corsola-steelix-sku131072 OK BYD L22B3PG0 > > > mt8195-cherry-tomato-r2 NOT OK PANASON AP16L5J > > > mt8192-asurada-spherion-r0 NOT OK PANASON AP15O5L > > > mt8183-kukui-jacuzzi-juniper-sku16 NOT OK LGC KT0 AP16L8J > > > mt8173-elm-hana OK Sunwoda L18D3PG1 > > > sc7180-trogdor-lazor-limozeen-nots-r5 NOT OK Murata AP18C4K > > > sc7180-trogdor-kingoftown NOT OK 333-AC-0D-A GG02047XL > > > rk3399-gru-kevin OK SDI 4352D51 > > > > > > Detect if this is one of the quirky batteries during presence update, so > > > that hot-plugging works as expected, and if so report -ENODATA for > > > POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, which removes it from uevent and > > > prevents throwing errors. > > > > > > Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com> > > > --- > > > > Hi, > > > > I'm coming back with more information after some more testing has been done. > > > > Most importantly, in the meantime, a parallel investigation uncovered that the > > time_to_empty_now issue was actually in the EC firmware: > > https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/5465747 > > > > So the other faulty properties (which I'll mention below) could also be due to > > the EC firmware. These are the EC firmware version for the platforms with > > additional issues: > > * RW version: juniper_v2.0.2509-9101a0730 > > * RW version: lazor_v2.0.6519-9923041f79 > > > > Hsin-Te, do you have information on whether it's an EC issue in this case as > > well? > > > > The following table shows all the faulty properties per platform: > > > > Platform Manufacturer Model Faulty properties > > --------------------------------------------------------------------------------- > > mt8186-corsola-steelix-sku131072 BYD L22B3PG0 - > > mt8195-cherry-tomato-r2 PANASON AP16L5J time_to_empty_now > > mt8192-asurada-spherion-r0 PANASON AP15O5L time_to_empty_now > > mt8183-kukui-jacuzzi-juniper-sku16 LGC KT0 AP16L8J time_to_empty_now > > capacity_error_margin > > constant_charge_current_max > > constant_charge_voltage_max > > current_avg > > technology > > manufacture_year > > manufacture_month > > manufacture_day > > SPEC_INFO > > mt8173-elm-hana Sunwoda L18D3PG1 - > > sc7180-trogdor-lazor-limozeen-nots-r5 Murata AP18C4K time_to_empty_now > > capacity_error_margin > > constant_charge_current_max > > constant_charge_voltage_max > > current_avg > > sc7180-trogdor-kingoftown 333-AC-0D-A GG02047XL time_to_empty_now > > rk3399-gru-kevin SDI 4352D51 - > > [..] > > It looks like the firmware version of juniper is too old. Could you > update the firmware and test it again? > Also, Could you provide the error you get from lazor? Getting back on this, we were finally able to update the EC firmware for both juniper and limozeen and all the issues were fixed. I have added the logs below just for reference. So I guess the only change we could have upstream would be a message suggesting the user to update the EC firmware in case the SBS is behind the CrosEC and it starts throwing errors. I'll prepare a patch for that. Thanks, Nícolas limozeen: + cat /sys/class/power_supply/sbs-12-000b/time_to_empty_now 3932100 + cat /sys/class/power_supply/sbs-12-000b/capacity_error_margin 3 + cat /sys/class/power_supply/sbs-12-000b/constant_charge_current_max 0 + cat /sys/class/power_supply/sbs-12-000b/constant_charge_voltage_max 0 + cat /sys/class/power_supply/sbs-12-000b/current_avg 0 + cat /sys/class/power_supply/sbs-12-000b/uevent DEVTYPE=power_supply OF_NAME=sbs-battery OF_FULLNAME=/soc@...eniqup@...000/spi@...000/ec@...2c-tunnel/sbs-battery@b OF_COMPATIBLE_0=sbs,sbs-battery OF_COMPATIBLE_N=1 POWER_SUPPLY_NAME=sbs-12-000b POWER_SUPPLY_TYPE=Battery POWER_SUPPLY_STATUS=Full POWER_SUPPLY_CAPACITY_LEVEL=Full POWER_SUPPLY_HEALTH=Unknown POWER_SUPPLY_PRESENT=1 POWER_SUPPLY_TECHNOLOGY=Li-poly POWER_SUPPLY_CYCLE_COUNT=2 POWER_SUPPLY_VOLTAGE_NOW=12293000 POWER_SUPPLY_CURRENT_NOW=0 POWER_SUPPLY_CURRENT_AVG=0 POWER_SUPPLY_CAPACITY=97 POWER_SUPPLY_CAPACITY_ERROR_MARGIN=3 POWER_SUPPLY_TEMP=194 POWER_SUPPLY_TIME_TO_EMPTY_NOW=3932100 POWER_SUPPLY_TIME_TO_EMPTY_AVG=3932100 POWER_SUPPLY_TIME_TO_FULL_AVG=3932100 POWER_SUPPLY_SERIAL_NUMBER=023e POWER_SUPPLY_VOLTAGE_MIN_DESIGN=11400000 POWER_SUPPLY_VOLTAGE_MAX_DESIGN=11400000 POWER_SUPPLY_ENERGY_NOW=42420000 POWER_SUPPLY_ENERGY_FULL=43700000 POWER_SUPPLY_ENERGY_FULL_DESIGN=51630000 POWER_SUPPLY_CHARGE_NOW=3451000 POWER_SUPPLY_CHARGE_FULL=3555000 POWER_SUPPLY_CHARGE_FULL_DESIGN=4200000 POWER_SUPPLY_CONSTANT_CHARGE_CURRENT_MAX=0 POWER_SUPPLY_CONSTANT_CHARGE_VOLTAGE_MAX=0 POWER_SUPPLY_MANUFACTURE_YEAR=2021 POWER_SUPPLY_MANUFACTURE_MONTH=3 POWER_SUPPLY_MANUFACTURE_DAY=14 POWER_SUPPLY_MANUFACTURER=Murata KT00304012 POWER_SUPPLY_MODEL_NAME=AP18C4K + cat /sys/class/chromeos/cros_ec/version RO version: lazor_v2.0.23149-099cd3e539 RW version: lazor_v2.0.23149-099cd3e539 juniper: + cat /sys/class/power_supply/sbs-12-000b/time_to_empty_now 3932100 + cat /sys/class/power_supply/sbs-12-000b/capacity_error_margin 3 + cat /sys/class/power_supply/sbs-12-000b/constant_charge_current_max 0 + cat /sys/class/power_supply/sbs-12-000b/constant_charge_voltage_max 0 + cat /sys/class/power_supply/sbs-12-000b/current_avg 0 + cat /sys/class/power_supply/sbs-12-000b/technology Li-ion + cat /sys/class/power_supply/sbs-12-000b/manufacture_year 2020 + cat /sys/class/power_supply/sbs-12-000b/manufacture_month 10 + cat /sys/class/power_supply/sbs-12-000b/manufacture_day 7 + cat /sys/class/power_supply/sbs-12-000b/uevent DEVTYPE=power_supply OF_NAME=sbs-battery OF_FULLNAME=/soc/spi@...12000/cros-ec@...2c-tunnel/sbs-battery@b OF_COMPATIBLE_0=sbs,sbs-battery OF_COMPATIBLE_N=1 POWER_SUPPLY_NAME=sbs-12-000b POWER_SUPPLY_TYPE=Battery POWER_SUPPLY_STATUS=Full POWER_SUPPLY_CAPACITY_LEVEL=Full POWER_SUPPLY_HEALTH=Unknown POWER_SUPPLY_PRESENT=1 POWER_SUPPLY_TECHNOLOGY=Li-ion POWER_SUPPLY_CYCLE_COUNT=8 POWER_SUPPLY_VOLTAGE_NOW=8210000 POWER_SUPPLY_CURRENT_NOW=0 POWER_SUPPLY_CURRENT_AVG=0 POWER_SUPPLY_CAPACITY=99 POWER_SUPPLY_CAPACITY_ERROR_MARGIN=3 POWER_SUPPLY_TEMP=215 POWER_SUPPLY_TIME_TO_EMPTY_NOW=3932100 POWER_SUPPLY_TIME_TO_EMPTY_AVG=3932100 POWER_SUPPLY_TIME_TO_FULL_AVG=3932100 POWER_SUPPLY_SERIAL_NUMBER=26c9 POWER_SUPPLY_VOLTAGE_MIN_DESIGN=7500000 POWER_SUPPLY_VOLTAGE_MAX_DESIGN=7500000 POWER_SUPPLY_ENERGY_NOW=34990000 POWER_SUPPLY_ENERGY_FULL=35170000 POWER_SUPPLY_ENERGY_FULL_DESIGN=39940000 POWER_SUPPLY_CHARGE_NOW=4262000 POWER_SUPPLY_CHARGE_FULL=4284000 POWER_SUPPLY_CHARGE_FULL_DESIGN=4865000 POWER_SUPPLY_CONSTANT_CHARGE_CURRENT_MAX=0 POWER_SUPPLY_CONSTANT_CHARGE_VOLTAGE_MAX=0 POWER_SUPPLY_MANUFACTURE_YEAR=2020 POWER_SUPPLY_MANUFACTURE_MONTH=10 POWER_SUPPLY_MANUFACTURE_DAY=7 POWER_SUPPLY_MANUFACTURER=LGC KT0 POWER_SUPPLY_MODEL_NAME=AP16L8J + cat /sys/class/chromeos/cros_ec/version RO version: juniper_v2.0.2796-7246101293 RW version: juniper_v2.0.2796-7246101293
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