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d730192ff0
On the Toshiba Encore WT10-A tablet the BATC battery ACPI device depends
on 3 other devices:
Name (_DEP, Package (0x03) // _DEP: Dependencies
{
I2C1,
GPO2,
GPO0
})
acpi_scan_check_dep() adds all 3 of these to the acpi_dep_list and then
before an acpi_device is created for the BATC handle (and thus before
acpi_scan_dep_init() runs) acpi_scan_clear_dep() gets called for both
GPIO depenencies, with free_when_met not set for the dependencies.
Since there is no adev for BATC yet, there also is no dep_unmet to
decrement. The only result of acpi_scan_clear_dep() in this case is
dep->met getting set.
Soon after acpi_scan_clear_dep() has been called for the GPIO dependencies
the acpi_device gets created for the BATC handle and acpi_scan_dep_init()
runs, this sees 3 dependencies on the acpi_dep_list and initializes
unmet_dep to 3. Later when the dependency for I2C1 is met unmet_dep
becomes 2, but since the 2 GPIO deps where already met it never becomes 0
causing battery monitoring to not work.
Fix this by modifying acpi_scan_dep_init() to not increase dep_met for
dependencies which have already been marked as being met.
Fixes:
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.. | ||
acpica | ||
apei | ||
arm64 | ||
dptf | ||
nfit | ||
numa | ||
pmic | ||
riscv | ||
x86 | ||
ac.c | ||
acpi_adxl.c | ||
acpi_apd.c | ||
acpi_cmos_rtc.c | ||
acpi_configfs.c | ||
acpi_dbg.c | ||
acpi_extlog.c | ||
acpi_ffh.c | ||
acpi_fpdt.c | ||
acpi_ipmi.c | ||
acpi_lpat.c | ||
acpi_lpit.c | ||
acpi_lpss.c | ||
acpi_memhotplug.c | ||
acpi_pad.c | ||
acpi_pcc.c | ||
acpi_platform.c | ||
acpi_pnp.c | ||
acpi_processor.c | ||
acpi_tad.c | ||
acpi_video.c | ||
acpi_watchdog.c | ||
battery.c | ||
bgrt.c | ||
blacklist.c | ||
bus.c | ||
button.c | ||
container.c | ||
cppc_acpi.c | ||
debugfs.c | ||
device_pm.c | ||
device_sysfs.c | ||
dock.c | ||
ec.c | ||
ec_sys.c | ||
event.c | ||
evged.c | ||
fan.h | ||
fan_attr.c | ||
fan_core.c | ||
glue.c | ||
hed.c | ||
internal.h | ||
ioapic.c | ||
irq.c | ||
Kconfig | ||
Makefile | ||
mipi-disco-img.c | ||
nvs.c | ||
osi.c | ||
osl.c | ||
pci_irq.c | ||
pci_link.c | ||
pci_mcfg.c | ||
pci_root.c | ||
pci_slot.c | ||
pfr_telemetry.c | ||
pfr_update.c | ||
platform_profile.c | ||
power.c | ||
pptt.c | ||
prmt.c | ||
proc.c | ||
processor_core.c | ||
processor_driver.c | ||
processor_idle.c | ||
processor_pdc.c | ||
processor_perflib.c | ||
processor_thermal.c | ||
processor_throttling.c | ||
property.c | ||
reboot.c | ||
resource.c | ||
sbs.c | ||
sbshc.c | ||
sbshc.h | ||
scan.c | ||
sleep.c | ||
sleep.h | ||
spcr.c | ||
sysfs.c | ||
tables.c | ||
thermal.c | ||
thermal_lib.c | ||
tiny-power-button.c | ||
utils.c | ||
video_detect.c | ||
viot.c | ||
wakeup.c |