On some Dell XPS 13 (9345) variants, the battery used is lithium-polymer
based. Currently, this is reported as unknown technology due to the entry
missing.
[ 4083.135325] Unknown battery technology 'LIP'
Add another check for lithium-polymer in the technology parsing callback
and return that instead of unknown.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250523-psy-qcom-battmgr-add-lipo-entry-v1-1-938c20a43a25@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Battery charge can be reported in several different ways. One of them is
is charge percentage referred to as POWER_SUPPLY_PROP_CAPACITY in the
power supply API. Currently the driver reports the capacity in this way
on SM8350, but not on the newer variants referred to as SC8280XP in the
driver. Although this is not a bug in itself, not reporting the
percentage can confuse some userspace consumers.
Mimic what is done in the ACPI driver (drivers/acpi/battery.c) and
calculate the percentage capacity by dividing the current charge value
by the full charge.
Signed-off-by: Kornel Dulęba <korneld@google.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250528112328.1640743-2-korneld@google.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
When registering a power-supply device, either a of_node or the more
recent fwnode can be supplied. Since fwnode can also contain an of_node,
let's try to get rid of it.
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Link: https://lore.kernel.org/r/20250225-psy-core-convert-to-fwnode-v1-4-d5e4369936bb@collabora.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
* power-supply core
- introduce power_supply_show_enum_with_available() helper
- change usb_types from an array into a bitmask
- fix early usage of power_supply_property_is_writeable() resulting
in sysfs files not being writable
- fix missing temp1_max_alarm attribute in power-supply's hwmon devices
* drivers
- max1720x: expose nvmem device
- brcmstb: cleanup driver to use latest APIs
- max77693: expose input and charging current limit
- max17042_battery: fix state of charge reading for devices without
current sensing
- axp20x_battery: add AXP717 support
- axp20x_battery: fix min/max voltage properties
- axp20x_usb_power: add AXP717 support
- axp20x_usb_power: add DT based input current limit
* Documentation updates
* misc. minor cleanups and fixes
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Merge tag 'for-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
"Power-supply core:
- introduce power_supply_show_enum_with_available() helper
- change usb_types from an array into a bitmask
- fix early usage of power_supply_property_is_writeable() resulting
in sysfs files not being writable
- fix missing temp1_max_alarm attribute in power-supply's hwmon
devices
Drivers:
- max1720x: expose nvmem device
- brcmstb: cleanup driver to use latest APIs
- max77693: expose input and charging current limit
- max17042_battery: fix state of charge reading for devices without
current sensing
- axp20x_battery: add AXP717 support
- axp20x_battery: fix min/max voltage properties
- axp20x_usb_power: add AXP717 support
- axp20x_usb_power: add DT based input current limit
Documentation updates
Misc minor cleanups and fixes"
* tag 'for-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (38 commits)
power: supply: hwmon: Fix missing temp1_max_alarm attribute
power: supply: Drop use_cnt check from power_supply_property_is_writeable()
power: supply: ab8500: Constify struct kobj_type
power: supply: max1720x: fix a double free on error in probe()
power: supply: axp20x_battery: add support for AXP717
power: supply: axp20x_usb_power: Add support for AXP717
dt-bindings: power: supply: axp20x: Add AXP717 compatible
dt-bindings: power: supply: axp20x: Add AXP717 compatible
power: supply: axp20x_usb_power: Fix spelling mistake "reqested" -> "requested"
power: supply: Change usb_types from an array into a bitmask
power: supply: sysfs: Move power_supply_show_enum_with_available() up
power: supply: sysfs: Add power_supply_show_enum_with_available() helper
power: supply: rt9467-charger: Remove "usb_type" property write support
power: supply: ucs1002: Adjust ucs1002_set_usb_type() to accept string values
power: supply: "usb_type" property may be written to
power: supply: max1720x: add read support for nvmem
mfd: axp20x: Add ADC, BAT, and USB cells for AXP717
power: supply: core: constify psy_tzd_ops
power: reset: brcmstb: Do not go into infinite loop if reset fails
power: reset: brcmstb: Use devm_register_sys_off_handler()
...
The bit_types array just hold a list of valid enum power_supply_usb_type
values which map to 0 - 9. This can easily be represented as a bitmap.
This reduces the size of struct power_supply_desc and further reduces
the data section size by drivers no longer needing to store the array.
This also unifies how usb_types are handled with charge_behaviours,
which allows power_supply_show_usb_type() to be removed.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240831142039.28830-7-hdegoede@redhat.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This corrects the tzmem virt-to-phys conversion, which caused issues for
the uefisecapp implementation of EFI variable access. SDM670 is excluded
from tzmem usage due to reported issues.
The SCM get wait queue context call is corrected to be marked ATOMIC and
some dead code in qseecom, following the tzmem conversion, is removed.
The memory backing command DB is remapped writecombined, to avoid XPU
violations when Linux runs without the Qualcomm hypervisor.
Two compile fixes are added for pd-mapper, and the broken reference
count is corrected, to make pd-mapper deal with remoteprocs going away.
In pmic_glink a race condition where the client callbacks might be
called before we returned the client handle is corrected. The broken conditions
for when to signal that the firmware is going down is also corrected.
In the pmic_glink UCSI driver, the ucsi_unregister() is moved out of the
pdr callback, as this is being invoked in atomic context.
Konrad's email address is updated in MAINTAINERS, and related mailmap
entries are added.
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Merge tag 'qcom-drivers-fixes-for-6.11' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/fixes
Qualcomm driver fixes for v6.11
This corrects the tzmem virt-to-phys conversion, which caused issues for
the uefisecapp implementation of EFI variable access. SDM670 is excluded
from tzmem usage due to reported issues.
The SCM get wait queue context call is corrected to be marked ATOMIC and
some dead code in qseecom, following the tzmem conversion, is removed.
The memory backing command DB is remapped writecombined, to avoid XPU
violations when Linux runs without the Qualcomm hypervisor.
Two compile fixes are added for pd-mapper, and the broken reference
count is corrected, to make pd-mapper deal with remoteprocs going away.
In pmic_glink a race condition where the client callbacks might be
called before we returned the client handle is corrected. The broken conditions
for when to signal that the firmware is going down is also corrected.
In the pmic_glink UCSI driver, the ucsi_unregister() is moved out of the
pdr callback, as this is being invoked in atomic context.
Konrad's email address is updated in MAINTAINERS, and related mailmap
entries are added.
* tag 'qcom-drivers-fixes-for-6.11' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
soc: qcom: pd-mapper: Fix singleton refcount
firmware: qcom: tzmem: disable sdm670 platform
soc: qcom: pmic_glink: Actually communicate when remote goes down
usb: typec: ucsi: Move unregister out of atomic section
soc: qcom: pmic_glink: Fix race during initialization
firmware: qcom: qseecom: remove unused functions
firmware: qcom: tzmem: fix virtual-to-physical address conversion
firmware: qcom: scm: Mark get_wq_ctx() as atomic call
MAINTAINERS: Update Konrad Dybcio's email address
mailmap: Add an entry for Konrad Dybcio
soc: qcom: pd-mapper: mark qcom_pdm_domains as __maybe_unused
soc: qcom: cmd-db: Map shared memory as WC, not WB
soc: qcom: pd-mapper: Depend on ARCH_QCOM || COMPILE_TEST
Link: https://lore.kernel.org/r/20240826145209.1646159-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
As pointed out by Stephen Boyd it is possible that during initialization
of the pmic_glink child drivers, the protection-domain notifiers fires,
and the associated work is scheduled, before the client registration
returns and as a result the local "client" pointer has been initialized.
The outcome of this is a NULL pointer dereference as the "client"
pointer is blindly dereferenced.
Timeline provided by Stephen:
CPU0 CPU1
---- ----
ucsi->client = NULL;
devm_pmic_glink_register_client()
client->pdr_notify(client->priv, pg->client_state)
pmic_glink_ucsi_pdr_notify()
schedule_work(&ucsi->register_work)
<schedule away>
pmic_glink_ucsi_register()
ucsi_register()
pmic_glink_ucsi_read_version()
pmic_glink_ucsi_read()
pmic_glink_ucsi_read()
pmic_glink_send(ucsi->client)
<client is NULL BAD>
ucsi->client = client // Too late!
This code is identical across the altmode, battery manager and usci
child drivers.
Resolve this by splitting the allocation of the "client" object and the
registration thereof into two operations.
This only happens if the protection domain registry is populated at the
time of registration, which by the introduction of commit '1ebcde047c54
("soc: qcom: add pd-mapper implementation")' became much more likely.
Reported-by: Amit Pundir <amit.pundir@linaro.org>
Closes: https://lore.kernel.org/all/CAMi1Hd2_a7TjA7J9ShrAbNOd_CoZ3D87twmO5t+nZxC9sX18tA@mail.gmail.com/
Reported-by: Johan Hovold <johan@kernel.org>
Closes: https://lore.kernel.org/all/ZqiyLvP0gkBnuekL@hovoldconsulting.com/
Reported-by: Stephen Boyd <swboyd@chromium.org>
Closes: https://lore.kernel.org/all/CAE-0n52JgfCBWiFQyQWPji8cq_rCsviBpW-m72YitgNfdaEhQg@mail.gmail.com/
Fixes: 58ef4ece1e ("soc: qcom: pmic_glink: Introduce base PMIC GLINK driver")
Cc: stable@vger.kernel.org
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: Amit Pundir <amit.pundir@linaro.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Link: https://lore.kernel.org/r/20240820-pmic-glink-v6-11-races-v3-1-eec53c750a04@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Some newer ADSP firmware versions on X1E80100 report an extra __le32 at the
end of the battery information request payload, causing qcom_battmgr to
fail to initialize. Adjust the check to ignore the extra field in the info
payload so we can support both old and newer firmware versions.
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240712-x1e80100-battmgr-v1-1-a253d767f493@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The driver returns -ENODEV when the firmware battmrg service hasn't
started yet, while per-se -ENODEV is fine, we usually use -EAGAIN to
tell the user to retry again later. And the power supply core uses
-EGAIN when the device isn't initialized, let's use the same return.
This notably causes an infinite spam of:
thermal thermal_zoneXX: failed to read out thermal zone (-19)
because the thermal core doesn't understand -ENODEV, but only
considers -EAGAIN as a non-fatal error.
While it didn't appear until now, commit [1] fixes thermal core
and no more ignores thermal zones returning an error at first
temperature update.
[1] 5725f40698b9 ("thermal: core: Call monitor_thermal_zone() if zone temperature is invalid")
Link: https://lore.kernel.org/all/2ed4c630-204a-4f80-a37f-f2ca838eb455@linaro.org/
Cc: stable@vger.kernel.org
Fixes: 29e8142b56 ("power: supply: Introduce Qualcomm PMIC GLINK power supply")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Reviewed-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Link: https://lore.kernel.org/r/20240715-topic-sm8x50-upstream-fix-battmgr-temp-tz-warn-v1-1-16e842ccead7@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The x1e80100, being a compute platform, provides functionality for the
exact same power supplies as sc8280xp. Add the compatible and assign
the sc8280xp match data.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240621-x1e80100-power-supply-qcom-battmgr-v1-1-40cb89a0c144@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This reverts commit b43f7ddc2b.
The offending commit deferred power-supply class device registration
until the service-started notification is received.
This triggers a NULL pointer dereference during boot of the Lenovo
ThinkPad X13s and SC8280XP CRD as battery status notifications can be
received before the service-start notification:
Unable to handle kernel NULL pointer dereference at virtual address 00000000000005c0
...
Call trace:
_acquire+0x338/0x2064
acquire+0x1e8/0x318
spin_lock_irqsave+0x60/0x88
_supply_changed+0x2c/0xa4
battmgr_callback+0x1d4/0x60c [qcom_battmgr]
pmic_glink_rpmsg_callback+0x5c/0xa4 [pmic_glink]
qcom_glink_native_rx+0x58c/0x7e8
qcom_glink_smem_intr+0x14/0x24 [qcom_glink_smem]
__handle_irq_event_percpu+0xb0/0x2d4
handle_irq_event+0x4c/0xb8
As trying to serialise this is non-trivial and risks missing
notifications, let's revert to registration during probe so that the
driver data is all set up once the service goes live.
The warning message during resume in case the aDSP firmware is not
running that motivated the change can be considered a feature and should
not be suppressed.
Fixes: b43f7ddc2b ("power: supply: qcom_battmgr: Register the power supplies after PDR is up")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20240123160053.18331-1-johan+linaro@kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Currently, a not-yet-entirely-initialized battmgr (e.g. with pd-mapper
not having yet started or ADSP not being up etc.) results in a couple of
zombie power supply devices hanging around.
This is particularly noticeable when trying to suspend the device (even
s2idle): the PSY-internal thermal zone is inaccessible and returns
-ENODEV, which causes log spam.
Register the power supplies only after we received some notification
indicating battmgr is ready to take off.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Tested-by: Luca Weiss <luca.weiss@fairphone.com>
Link: https://lore.kernel.org/r/20231218-topic-battmgr_fixture_attempt-v1-1-6145745f34fe@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Add the missing endianness conversion when sending the enable request so
that the driver will work also on a hypothetical big-endian machine.
This issue was reported by sparse.
Fixes: 29e8142b56 ("power: supply: Introduce Qualcomm PMIC GLINK power supply")
Cc: stable@vger.kernel.org # 6.3
Cc: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
Link: https://lore.kernel.org/r/20230929101649.20206-1-johan+linaro@kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The argument to do_div() is a 32-bit integer, and it was read from a
32-bit register so there is no point in doing a 64-bit division on it.
On 32-bit arm, do_div() causes a compile-time warning here:
include/asm-generic/div64.h:238:22: error: passing argument 1 of '__div64_32' from incompatible pointer type [-Werror=incompatible-pointer-types]
238 | __rem = __div64_32(&(n), __base); \
| ^~~~
| |
| unsigned int *
drivers/power/supply/qcom_battmgr.c:1130:4: note: in expansion of macro 'do_div'
1130 | do_div(battmgr->status.percent, 100);
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The PMIC GLINK service, running on a coprocessor of modern Qualcomm
platforms, deals with battery charging and fuel gauging, as well as
reporting status of AC and wireless power supplies.
As this is just one of the functionalities provided by the PMIC GLINK
service, this power supply driver is implemented as an auxilirary bus
driver, spawned by the main "pmic glink" driver when the PMIC GLINK
service is detected.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Konrad Dybcio <konrad.dybcio@linaro.org> # SM8350 PDX215
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-MTP & SM8450-HDK
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230207144241.1767973-1-quic_bjorande@quicinc.com
