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[ Upstream commit bd44ea12919ac4e83c9f3997240fe58266aa8799 ]
Mirroring drivers/macintosh/apm_emu.c, this means that
modprobe apm_power && modprobe $anotherdriver && modprobe -r apm_power
leaves $anotherdriver's apm_get_power_status instead of deleting it.
Fixes: 3788ec932bfd ("[BATTERY] APM emulation driver for class batteries")
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Link: https://patch.msgid.link/xczpgox57hxbunkcbdl5fxhc4gnsajsipldfidi7355afezk64@tarta.nabijaczleweli.xyz
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit ea14bae6df18942bccb467fcf5ff33ca677b8253 ]
Since wm831x_set_bits() may return error, log failure and exit from
wm831x_usb_limit_change() in such case.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 626b6cd5f52e ("power: wm831x_power: Support USB charger current limit management")
Signed-off-by: Ivan Abramov <i.abramov@mt-integration.ru>
Link: https://patch.msgid.link/20251009170553.566561-1-i.abramov@mt-integration.ru
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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rt9467_set_value_from_ranges()
[ Upstream commit 15aca30cc6c69806054b896a2ccf7577239cb878 ]
There is a typo in rt9467_set_value_from_ranges() that can cause leaving local
variable sel with an undefined value which is then used in regmap_field_write().
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 6f7f70e3a8dd ("power: supply: rt9467: Add Richtek RT9467 charger driver")
Signed-off-by: Murad Masimov <m.masimov@mt-integration.ru>
Link: https://patch.msgid.link/20251009145308.1830893-1-m.masimov@mt-integration.ru
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 8b27fe2d8d2380118c343629175385ff587e2fe4 ]
The return value of rt9467_set_value_from_ranges() when setting AICL VTH is
not checked, even though it may fail.
Log error and return from rt9467_run_aicl() on fail.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 6f7f70e3a8dd ("power: supply: rt9467: Add Richtek RT9467 charger driver")
Signed-off-by: Ivan Abramov <i.abramov@mt-integration.ru>
Link: https://patch.msgid.link/20251009144725.562278-1-i.abramov@mt-integration.ru
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 92ec7e7b86ec0aff9cd7db64d9dce50a0ea7c542 ]
Since devm_delayed_work_autocancel() may fail, add return code check and
exit cw_bat_probe() on error.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 0cb172a4918e ("power: supply: cw2015: Use device managed API to simplify the code")
Signed-off-by: Ivan Abramov <i.abramov@mt-integration.ru>
Link: https://patch.msgid.link/20251008120711.556021-1-i.abramov@mt-integration.ru
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 41307ec7df057239aae3d0f089cc35a0d735cdf8 ]
The X1E80100 battery management firmware sends a notification with
code 0x83 when the battery charging state changes, such as switching
between fast charge, taper charge, end of charge, or any other error
charging states.
The same notification code is used with bit[8] set when charging stops
because the charge control end threshold is reached. Additionally,
a 2-bit value is included in bit[10:9] with the same code to indicate
the charging source capability, which is determined by the calculated
power from voltage and current readings from PDOs: 2 means a strong
charger over 60W, 1 indicates a weak charger, and 0 means there is no
charging source.
These 3-MSB [10:8] in the notification code is not much useful for now,
hence just ignore them and trigger a power supply change event whenever
0x83 notification code is received. This helps to eliminate the unknown
notification error messages.
Reported-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Closes: https://lore.kernel.org/all/r65idyc4of5obo6untebw4iqfj2zteiggnnzabrqtlcinvtddx@xc4aig5abesu/
Signed-off-by: Fenglin Wu <fenglin.wu@oss.qualcomm.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 3ec600210849cf122606e24caab85f0b936cf63c ]
If we have 2 instances of sbs-charger in the DTS, the driver probe for the second instance will fail:
[ 8.012874] sbs-battery 18-000b: sbs-battery: battery gas gauge device registered
[ 8.039094] sbs-charger 18-0009: ltc4100: smart charger device registered
[ 8.112911] sbs-battery 20-000b: sbs-battery: battery gas gauge device registered
[ 8.134533] sysfs: cannot create duplicate filename '/class/power_supply/sbs-charger'
[ 8.143871] CPU: 3 PID: 295 Comm: systemd-udevd Tainted: G O 5.10.147 #22
[ 8.151974] Hardware name: ALE AMB (DT)
[ 8.155828] Call trace:
[ 8.158292] dump_backtrace+0x0/0x1d4
[ 8.161960] show_stack+0x18/0x6c
[ 8.165280] dump_stack+0xcc/0x128
[ 8.168687] sysfs_warn_dup+0x60/0x7c
[ 8.172353] sysfs_do_create_link_sd+0xf0/0x100
[ 8.176886] sysfs_create_link+0x20/0x40
[ 8.180816] device_add+0x270/0x7a4
[ 8.184311] __power_supply_register+0x304/0x560
[ 8.188930] devm_power_supply_register+0x54/0xa0
[ 8.193644] sbs_probe+0xc0/0x214 [sbs_charger]
[ 8.198183] i2c_device_probe+0x2dc/0x2f4
[ 8.202196] really_probe+0xf0/0x510
[ 8.205774] driver_probe_device+0xfc/0x160
[ 8.209960] device_driver_attach+0xc0/0xcc
[ 8.214146] __driver_attach+0xc0/0x170
[ 8.218002] bus_for_each_dev+0x74/0xd4
[ 8.221862] driver_attach+0x24/0x30
[ 8.225444] bus_add_driver+0x148/0x250
[ 8.229283] driver_register+0x78/0x130
[ 8.233140] i2c_register_driver+0x4c/0xe0
[ 8.237250] sbs_driver_init+0x20/0x1000 [sbs_charger]
[ 8.242424] do_one_initcall+0x50/0x1b0
[ 8.242434] do_init_module+0x44/0x230
[ 8.242438] load_module+0x2200/0x27c0
[ 8.242442] __do_sys_finit_module+0xa8/0x11c
[ 8.242447] __arm64_sys_finit_module+0x20/0x30
[ 8.242457] el0_svc_common.constprop.0+0x64/0x154
[ 8.242464] do_el0_svc+0x24/0x8c
[ 8.242474] el0_svc+0x10/0x20
[ 8.242481] el0_sync_handler+0x108/0x114
[ 8.242485] el0_sync+0x180/0x1c0
[ 8.243847] sbs-charger 20-0009: Failed to register power supply
[ 8.287934] sbs-charger: probe of 20-0009 failed with error -17
This is mainly because the "name" field of power_supply_desc is a constant.
This patch fixes the issue by reusing the same approach as sbs-battery.
With this patch, the result is:
[ 7.819532] sbs-charger 18-0009: ltc4100: smart charger device registered
[ 7.825305] sbs-battery 18-000b: sbs-battery: battery gas gauge device registered
[ 7.887423] sbs-battery 20-000b: sbs-battery: battery gas gauge device registered
[ 7.893501] sbs-charger 20-0009: ltc4100: smart charger device registered
Signed-off-by: Fabien Proriol <fabien.proriol@viavisolutions.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit fee0904441325d83e7578ca457ec65a9d3f21264 ]
The ASUS S15 xElite model report the Li-ion battery with an OOI, hence this
update the detection and return the appropriate type.
Signed-off-by: Christopher Ruehl <chris.ruehl@gtsys.com.hk>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit ee6cd8f3e28ee5a929c3b67c01a350f550f9b73a upstream.
CHARGE_CONTROL_LIMIT is a wrong property to report charge current limit,
because `CHARGE_*` attributes represents capacity, not current. The
correct attribute to report and set charge current limit is
CONSTANT_CHARGE_CURRENT.
Rename CHARGE_CONTROL_LIMIT to CONSTANT_CHARGE_CURRENT.
Cc: stable@vger.kernel.org
Fixes: 715ecbc10d6a ("power: supply: max77976: add Maxim MAX77976 charger driver")
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit def5612170a8c6c4c6a3ea5bd6c3cfc8de6ba4b1 ]
Fix the checkpatch warning:
CHECK: Alignment should match open parenthesis
Fixes: 0cb172a4918e ("power: supply: cw2015: Use device managed API to simplify the code")
Signed-off-by: Andy Yan <andyshrk@163.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 1e451977e1703b6db072719b37cd1b8e250b9cc9 upstream.
There are fuel gauges in the bq27xxx series (e.g. bq27z561) which may in some
cases report 0xff as the value of BQ27XXX_REG_FLAGS that should not be
interpreted as "no battery" like for a disconnected battery with some built
in bq27000 chip.
So restrict the no-battery detection originally introduced by
commit 3dd843e1c26a ("bq27000: report missing device better.")
to the bq27000.
There is no need to backport further because this was hidden before
commit f16d9fb6cf03 ("power: supply: bq27xxx: Retrieve again when busy")
Fixes: f16d9fb6cf03 ("power: supply: bq27xxx: Retrieve again when busy")
Suggested-by: Jerry Lv <Jerry.Lv@axis.com>
Cc: stable@vger.kernel.org
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Link: https://lore.kernel.org/r/dd979fa6855fd051ee5117016c58daaa05966e24.1755945297.git.hns@goldelico.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 2c334d038466ac509468fbe06905a32d202117db upstream.
Since commit
commit f16d9fb6cf03 ("power: supply: bq27xxx: Retrieve again when busy")
the console log of some devices with hdq enabled but no bq27000 battery
(like e.g. the Pandaboard) is flooded with messages like:
[ 34.247833] power_supply bq27000-battery: driver failed to report 'status' property: -1
as soon as user-space is finding a /sys entry and trying to read the
"status" property.
It turns out that the offending commit changes the logic to now return the
value of cache.flags if it is <0. This is likely under the assumption that
it is an error number. In normal errors from bq27xxx_read() this is indeed
the case.
But there is special code to detect if no bq27000 is installed or accessible
through hdq/1wire and wants to report this. In that case, the cache.flags
are set historically by
commit 3dd843e1c26a ("bq27000: report missing device better.")
to constant -1 which did make reading properties return -ENODEV. So everything
appeared to be fine before the return value was passed upwards.
Now the -1 is returned as -EPERM instead of -ENODEV, triggering the error
condition in power_supply_format_property() which then floods the console log.
So we change the detection of missing bq27000 battery to simply set
cache.flags = -ENODEV
instead of -1.
Fixes: f16d9fb6cf03 ("power: supply: bq27xxx: Retrieve again when busy")
Cc: Jerry Lv <Jerry.Lv@axis.com>
Cc: stable@vger.kernel.org
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Link: https://lore.kernel.org/r/692f79eb6fd541adb397038ea6e750d4de2deddf.1755945297.git.hns@goldelico.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 202ac22b8e2e015e6c196fd8113f3d2a62dd1afc ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 2937f5d2e24eefef8cb126244caec7fe3307f724 ]
When the kernel is not configured CONFIG_OF, the max14577_charger_dt_init
function returns NULL. Fix the max14577_charger_probe functionby returning
-ENODATA instead of potentially passing a NULL pointer to PTR_ERR.
This fixes the below smatch warning:
max14577_charger_probe() warn: passing zero to 'PTR_ERR'
Fixes: e30110e9c96f ("charger: max14577: Configure battery-dependent settings from DTS and sysfs")
Signed-off-by: Charles Han <hanchunchao@inspur.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250519061601.8755-1-hanchunchao@inspur.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit d9fa3aae08f99493e67fb79413c0e95d30fca5e9 ]
In the cpcap_usb_detect() function, the power_supply_get_by_name()
function may return `NULL` instead of an error pointer.
To prevent potential null pointer dereferences, Added a null check.
Fixes: eab4e6d953c1 ("power: supply: cpcap-charger: get the battery inserted infomation from cpcap-battery")
Signed-off-by: Charles Han <hanchunchao@inspur.com>
Link: https://lore.kernel.org/r/20250519024741.5846-1-hanchunchao@inspur.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit f16d9fb6cf03fdbdefa41a8b32ba1e57afb7ae3d ]
Multiple applications may access the battery gauge at the same time, so
the gauge may be busy and EBUSY will be returned. The driver will set a
flag to record the EBUSY state, and this flag will be kept until the next
periodic update. When this flag is set, bq27xxx_battery_get_property()
will just return ENODEV until the flag is updated.
Even if the gauge was busy during the last accessing attempt, returning
ENODEV is not ideal, and can cause confusion in the applications layer.
Instead, retry accessing the I2C to update the flag is as expected, for
the gauge typically recovers from busy state within a few milliseconds.
If still failed to access the gauge, the real error code would be returned
instead of ENODEV (as suggested by Pali Rohár).
Reviewed-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Jerry Lv <Jerry.Lv@axis.com>
Link: https://lore.kernel.org/r/20250415-foo-fix-v2-1-5b45a395e4cc@axis.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit c73d19f89cb03c43abbbfa3b9caa1b8fc719764c ]
Device can be unbound, so driver must also release memory for the wakeup
source.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250406202730.55096-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 62d48983f215bf1dd48665913318101fa3414dcf ]
This patch adds a small optimization to the low-level at91_reset()
function, which includes:
- Removes the extra branch, since the following store operations
already have proper condition checks.
- Removes the definition of the clobber register r4, since it is
no longer used in the code.
Fixes: fcd0532fac2a ("power: reset: at91-reset: make at91sam9g45_restart() generic")
Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20250307053809.20245-1-eagle.alexander923@gmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 30cc7b0d0e9341d419eb7da15fb5c22406dbe499 ]
The charge input threshold voltage register on the MAX77693 PMIC accepts
four values: 0x0 for 4.3v, 0x1 for 4.7v, 0x2 for 4.8v and 0x3 for 4.9v.
Due to an oversight, the driver calculated the values for 4.7v and above
starting from 0x0, rather than from 0x1 ([(4700000 - 4700000) / 100000]
gives 0).
Add 1 to the calculation to ensure that 4.7v is converted to a register
value of 0x1 and that the other two voltages are converted correctly as
well.
Fixes: 87c2d9067893 ("power: max77693: Add charger driver for Maxim 77693")
Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250316-max77693-charger-input-threshold-fix-v1-1-2b037d0ac722@gmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 3fb3cb4350befc4f901c54e0cb4a2a47b1302e08 ]
Size of variable sd_gain equals four bytes - DA9150_QIF_SD_GAIN_SIZE.
Size of variable shunt_val equals two bytes - DA9150_QIF_SHUNT_VAL_SIZE.
The expression sd_gain * shunt_val is currently being evaluated using
32-bit arithmetic. So during the multiplication an overflow may occur.
As the value of type 'u64' is used as storage for the eventual result, put
ULL variable at the first position of each expression in order to give the
compiler complete information about the proper arithmetic to use. According
to C99 the guaranteed width for a variable of type 'unsigned long long' >=
64 bits.
Remove the explicit cast to u64 as it is meaningless.
Just for the sake of consistency, perform the similar trick with another
expression concerning 'iavg'.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: a419b4fd9138 ("power: Add support for DA9150 Fuel-Gauge")
Signed-off-by: Andrey Vatoropin <a.vatoropin@crpt.ru>
Link: https://lore.kernel.org/r/20250130090030.53422-1-a.vatoropin@crpt.ru
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit afc6e39e824ad0e44b2af50a97885caec8d213d1 upstream.
Fix set charge current limits for devices which allow to set the lowest
charge current limit to be greater zero. If requested charge current limit
is below lowest limit, the index equals current_limit_map_size which leads
to accessing memory beyond allocated memory.
Fixes: be2919d8355e ("power: supply: gpio-charger: add charge-current-limit feature")
Cc: stable@vger.kernel.org
Signed-off-by: Dimitri Fedrau <dimitri.fedrau@liebherr.com>
Link: https://lore.kernel.org/r/20241209-fix-charge-current-limit-v1-1-760d9b8f2af3@liebherr.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit c46a9ee5c6210682611d3d4276436c23a95e1996 ]
Use IC status regfield to rewrite the 'get_staus' function. The original
one cannot cover some special scenario like as charger OTG or JEITA case.
Fixes: 4a1a5f6781d8 ("power: supply: rt9471: Add Richtek RT9471 charger driver")
Reported-by: Lucas Tsai <lucas_tsai@richtek.com>
Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Link: https://lore.kernel.org/r/67ba92bb4a9c51d9cafadab30b788a3a2c3048e1.1727252762.git.cy_huang@richtek.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit d10ff07dd2b933e3864c592ca932996b07bbf22a ]
Fix F_WDT and F_WDT_RST wrong regfield declaration.
Fixes: 4a1a5f6781d8 ("power: supply: rt9471: Add Richtek RT9471 charger driver")
Reported-by: Lucas Tsai <lucas_tsai@richtek.com>
Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Link: https://lore.kernel.org/r/f862e23f220612f01fabb6d8e76cfaf63756c22b.1727252762.git.cy_huang@richtek.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 34f99d3b706a519e556841f405c224ca708b1f54 ]
Correct bq27426 registers, according to technical reference manual
it does not have Design Capacity register so it is not register
compatible with bq27421.
Fixes: 5ef6a16033b47 ("power: supply: bq27xxx: Add support for BQ27426")
Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Link: https://lore.kernel.org/r/20241016-fix_bq27426-v2-1-aa6c0f51a9f6@mainlining.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit f6da4553ff24a5d1c959c9627c965323adc3d307 ]
The put_device() call in power_supply_put() may call
power_supply_dev_release(). The latter function does not sleep so
power_supply_put() doesn't sleep either. Hence, remove the might_sleep()
call from power_supply_put(). This patch suppresses false positive
complaints about calling a sleeping function from atomic context if
power_supply_put() is called from atomic context.
Cc: Kyle Tso <kyletso@google.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Fixes: 1a352462b537 ("power_supply: Add power_supply_put for decrementing device reference counter")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240917193914.47566-1-bvanassche@acm.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit e50a57d16f897e45de1112eb6478577b197fab52 upstream.
Temp channel 0 aka temp1 can have a temp1_max_alarm attribute for
power_supply devices which have a POWER_SUPPLY_PROP_TEMP_ALERT_MAX
property.
HWMON_T_MAX_ALARM was missing from power_supply_hwmon_info for
temp channel 0, causing the hwmon temp1_max_alarm attribute to be
missing from such power_supply devices.
Add this to power_supply_hwmon_info to fix this.
Fixes: f1d33ae806ec ("power: supply: remove duplicated argument in power_supply_hwmon_info")
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240908185337.103696-2-hdegoede@redhat.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit cf8c39b00e982fa506b16f9d76657838c09150cb ]
There may be other backup reset methods available, do not halt
here so that other reset methods can be tried.
Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20240610142836.168603-5-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 3a3acf839b2cedf092bdd1ff65b0e9895df1656b ]
Commit 223a3b82834f ("power: supply: max17042_battery: use VFSOC for
capacity when no rsns") made it so that capacity on systems without
current sensing would be read from VFSOC instead of RepSOC. However,
the SOC threshold calculation still read RepSOC to get the SOC
regardless of the current sensing option state.
Fix this by applying the same conditional to determine which register
should be read.
This also seems to be the intended behavior as per the datasheet - SOC
alert config value in MiscCFG on setups without current sensing is set
to a value of 0b11, indicating SOC alerts being generated based on
VFSOC, instead of 0b00 which indicates SOC alerts being generated based
on RepSOC.
This fixes an issue on the Galaxy S3/Midas boards, where the alert
interrupt would be constantly retriggered, causing high CPU usage
on idle (around ~12%-15%).
Fixes: e5f3872d2044 ("max17042: Add support for signalling change in SOC")
Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
Reviewed-by: Henrik Grimler <henrik@grimler.se>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240817-max17042-soc-threshold-fix-v1-1-72b45899c3cc@gmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 61978807b00f8a1817b0e5580981af1cd2f428a5 ]
The POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN and
POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN values should be immutable
properties of the battery, but for this driver they are writable values
and used as the minimum and maximum values for charging. Remove the
DESIGN designation from these values.
Fixes: 46c202b5f25f ("power: supply: add battery driver for AXP20X and AXP22X PMICs")
Suggested-by: Chen-Yu Tsai <wens@kernel.org>
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240821215456.962564-3-macroalpha82@gmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 3568affcddd68743e25aa3ec1647d9b82797757b upstream.
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: 58ef4ece1e41 ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 81af7f2342d162e24ac820c10e68684d9f927663 upstream.
Round constant_charge_voltage writes down to the first supported lower
value, rather then rounding them up to the first supported higher value.
This fixes e.g. writing 4250000 resulting in a value of 4350000 which
might be dangerous, instead writing 4250000 will now result in a safe
4200000 value.
Fixes: 843735b788a4 ("power: axp288_charger: axp288 charger driver")
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240717200333.56669-2-hdegoede@redhat.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b34ce4a59cfe9cd0d6f870e6408e8ec88a964585 upstream.
info->max_cv is in millivolts, divide the microvolt value being written
to constant_charge_voltage by 1000 *before* clamping it to info->max_cv.
Before this fix the code always tried to set constant_charge_voltage
to max_cv / 1000 = 4 millivolt, which ends up in setting it to 4.1V
which is the lowest supported value.
Fixes: 843735b788a4 ("power: axp288_charger: axp288 charger driver")
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240717200333.56669-1-hdegoede@redhat.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit bf9d5cb588755ee41ac12a8976dccf44ae18281b upstream.
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: 29e8142b5623 ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 0f8678c34cbfdc63569a9b0ede1fe235ec6ec693 ]
Instead of using fallback driver name match, provide ID table[1] for the
primary match.
[1]: https://elixir.bootlin.com/linux/v6.8/source/drivers/base/platform.c#L1353
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Prashant Malani <pmalani@chromium.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://lore.kernel.org/r/20240401030052.2887845-4-tzungbi@kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 1e0fb113646182e073539db96016b00cfeb18ecc ]
The of_match shall correspond to the name of the regulator subnode,
or the deprecated `regulator-compatible` property must be used:
failing to do so, the regulator won't probe (and the driver will
as well not probe).
Since the devicetree binding for this driver is actually correct
and wants DTs to use the "usb-otg-vbus-regulator" subnode name,
fix this driver by aligning the `of_match` string to what the DT
binding wants.
Fixes: 0402e8ebb8b8 ("power: supply: mt6360_charger: add MT6360 charger support")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20240410084405.1389378-1-angelogioacchino.delregno@collabora.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 452d8950db3e839aba1bb13bc5378f4bac11fa04 ]
The rt9455_boost_voltage_values[] array is only used when USB PHY
support is enabled, causing a W=1 warning otherwise:
drivers/power/supply/rt9455_charger.c:200:18: error: 'rt9455_boost_voltage_values' defined but not used [-Werror=unused-const-variable=]
Enclose the definition in the same #ifdef as the references to it.
Fixes: e86d69dd786e ("power_supply: Add support for Richtek RT9455 battery charger")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240403080702.3509288-10-arnd@kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 2df70149e73e79783bcbc7db4fa51ecef0e2022c ]
The bq27xxx i2c-client may not have an IRQ, in which case
client->irq will be 0. bq27xxx_battery_i2c_probe() already has
an if (client->irq) check wrapping the request_threaded_irq().
But bq27xxx_battery_i2c_remove() unconditionally calls
free_irq(client->irq) leading to:
[ 190.310742] ------------[ cut here ]------------
[ 190.310843] Trying to free already-free IRQ 0
[ 190.310861] WARNING: CPU: 2 PID: 1304 at kernel/irq/manage.c:1893 free_irq+0x1b8/0x310
Followed by a backtrace when unbinding the driver. Add
an if (client->irq) to bq27xxx_battery_i2c_remove() mirroring
probe() to fix this.
Fixes: 444ff00734f3 ("power: supply: bq27xxx: Fix I2C IRQ race on remove")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240215155133.70537-1-hdegoede@redhat.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 88f04bc3e737155e13caddf0ba8ed19db87f0212 ]
devm_kasprintf and devm_kzalloc return a pointer to dynamically
allocated memory which can be NULL upon failure.
Fixes: 8648aeb5d7b7 ("power: supply: add Qualcomm PMI8998 SMB2 Charger driver")
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Link: https://lore.kernel.org/r/20231124075021.1335289-1-chentao@kylinos.cn
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit b55d073e6501dc6077edaa945a6dad8ac5c8bbab ]
smatch complains that there is a buffer overflow and clang complains
'ret' is never read.
Smatch error:
drivers/power/supply/bq256xx_charger.c:1578 bq256xx_hw_init() error:
buffer overflow 'bq256xx_watchdog_time' 4 <= 4
Clang static checker:
Value stored to 'ret' is never read.
Add check for buffer overflow and error code from regmap_update_bits().
Fixes: 32e4978bb920 ("power: supply: bq256xx: Introduce the BQ256XX charger driver")
Signed-off-by: Su Hui <suhui@nfschina.com>
Link: https://lore.kernel.org/r/20231116041822.1378758-1-suhui@nfschina.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit f37669119423ca852ca855b24732f25c0737aa57 ]
RRT_ALRT register holds remaining battery time in minutes therefore it
needs to be scaled accordingly when exposing TIME_TO_EMPTY via sysfs
expressed in seconds
Fixes: b4c7715c10c1 ("power: supply: add CellWise cw2015 fuel gauge driver")
Signed-off-by: Jan Palus <jpalus@fastmail.com>
Link: https://lore.kernel.org/r/20231111221704.5579-1-jpalus@fastmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit bbaa6ffa5b6c9609d3b3c431c389b407eea5441f ]
AMD PMF driver can cause the following warning:
[ 196.159546] ------------[ cut here ]------------
[ 196.159556] Voluntary context switch within RCU read-side critical section!
[ 196.159571] WARNING: CPU: 0 PID: 9 at kernel/rcu/tree_plugin.h:320 rcu_note_context_switch+0x43d/0x560
[ 196.159604] Modules linked in: nvme_fabrics ccm rfcomm snd_hda_scodec_cs35l41_spi cmac algif_hash algif_skcipher af_alg bnep joydev btusb btrtl uvcvideo btintel btbcm videobuf2_vmalloc intel_rapl_msr btmtk videobuf2_memops uvc videobuf2_v4l2 intel_rapl_common binfmt_misc hid_sensor_als snd_sof_amd_vangogh hid_sensor_trigger bluetooth industrialio_triggered_buffer videodev snd_sof_amd_rembrandt hid_sensor_iio_common amdgpu ecdh_generic kfifo_buf videobuf2_common hp_wmi kvm_amd sparse_keymap snd_sof_amd_renoir wmi_bmof industrialio ecc mc nls_iso8859_1 kvm snd_sof_amd_acp irqbypass snd_sof_xtensa_dsp crct10dif_pclmul crc32_pclmul mt7921e snd_sof_pci snd_ctl_led polyval_clmulni mt7921_common polyval_generic snd_sof ghash_clmulni_intel mt792x_lib mt76_connac_lib sha512_ssse3 snd_sof_utils aesni_intel snd_hda_codec_realtek crypto_simd mt76 snd_hda_codec_generic cryptd snd_soc_core snd_hda_codec_hdmi rapl ledtrig_audio input_leds snd_compress i2c_algo_bit drm_ttm_helper mac80211 snd_pci_ps hid_multitouch ttm drm_exec
[ 196.159970] drm_suballoc_helper snd_rpl_pci_acp6x amdxcp drm_buddy snd_hda_intel snd_acp_pci snd_hda_scodec_cs35l41_i2c serio_raw gpu_sched snd_hda_scodec_cs35l41 snd_acp_legacy_common snd_intel_dspcfg snd_hda_cs_dsp_ctls snd_hda_codec libarc4 drm_display_helper snd_pci_acp6x cs_dsp snd_hwdep snd_soc_cs35l41_lib video k10temp snd_pci_acp5x thunderbolt snd_hda_core drm_kms_helper cfg80211 snd_seq snd_rn_pci_acp3x snd_pcm snd_acp_config cec snd_soc_acpi snd_seq_device rc_core ccp snd_pci_acp3x snd_timer snd soundcore wmi amd_pmf platform_profile amd_pmc mac_hid serial_multi_instantiate wireless_hotkey hid_sensor_hub sch_fq_codel msr parport_pc ppdev lp parport efi_pstore ip_tables x_tables autofs4 btrfs blake2b_generic raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx libcrc32c xor raid6_pq raid1 raid0 multipath linear dm_mirror dm_region_hash dm_log cdc_ether usbnet r8152 mii hid_generic nvme i2c_hid_acpi i2c_hid nvme_core i2c_piix4 xhci_pci amd_sfh drm xhci_pci_renesas nvme_common hid
[ 196.160382] CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.6.0-rc1 #4
[ 196.160397] Hardware name: HP HP EliteBook 845 14 inch G10 Notebook PC/8B6E, BIOS V82 Ver. 01.02.00 08/24/2023
[ 196.160405] Workqueue: events power_supply_changed_work
[ 196.160426] RIP: 0010:rcu_note_context_switch+0x43d/0x560
[ 196.160440] Code: 00 48 89 be 40 08 00 00 48 89 86 48 08 00 00 48 89 10 e9 63 fe ff ff 48 c7 c7 10 e7 b0 9e c6 05 e8 d8 20 02 01 e8 13 0f f3 ff <0f> 0b e9 27 fc ff ff a9 ff ff ff 7f 0f 84 cf fc ff ff 65 48 8b 3c
[ 196.160450] RSP: 0018:ffffc900001878f0 EFLAGS: 00010046
[ 196.160462] RAX: 0000000000000000 RBX: ffff88885e834040 RCX: 0000000000000000
[ 196.160470] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 196.160476] RBP: ffffc90000187910 R08: 0000000000000000 R09: 0000000000000000
[ 196.160482] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 196.160488] R13: 0000000000000000 R14: ffff888100990000 R15: ffff888100990000
[ 196.160495] FS: 0000000000000000(0000) GS:ffff88885e800000(0000) knlGS:0000000000000000
[ 196.160504] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 196.160512] CR2: 000055cb053c8246 CR3: 000000013443a000 CR4: 0000000000750ef0
[ 196.160520] PKRU: 55555554
[ 196.160526] Call Trace:
[ 196.160532] <TASK>
[ 196.160548] ? show_regs+0x72/0x90
[ 196.160570] ? rcu_note_context_switch+0x43d/0x560
[ 196.160580] ? __warn+0x8d/0x160
[ 196.160600] ? rcu_note_context_switch+0x43d/0x560
[ 196.160613] ? report_bug+0x1bb/0x1d0
[ 196.160637] ? handle_bug+0x46/0x90
[ 196.160658] ? exc_invalid_op+0x19/0x80
[ 196.160675] ? asm_exc_invalid_op+0x1b/0x20
[ 196.160709] ? rcu_note_context_switch+0x43d/0x560
[ 196.160727] __schedule+0xb9/0x15f0
[ 196.160746] ? srso_alias_return_thunk+0x5/0x7f
[ 196.160765] ? srso_alias_return_thunk+0x5/0x7f
[ 196.160778] ? acpi_ns_search_one_scope+0xbe/0x270
[ 196.160806] schedule+0x68/0x110
[ 196.160820] schedule_timeout+0x151/0x160
[ 196.160829] ? srso_alias_return_thunk+0x5/0x7f
[ 196.160842] ? srso_alias_return_thunk+0x5/0x7f
[ 196.160855] ? acpi_ns_lookup+0x3c5/0xa90
[ 196.160878] __down_common+0xff/0x220
[ 196.160905] __down_timeout+0x16/0x30
[ 196.160920] down_timeout+0x64/0x70
[ 196.160938] acpi_os_wait_semaphore+0x85/0x200
[ 196.160959] acpi_ut_acquire_mutex+0x9e/0x280
[ 196.160979] acpi_ex_enter_interpreter+0x2d/0xb0
[ 196.160992] acpi_ns_evaluate+0x2f0/0x5f0
[ 196.161005] acpi_evaluate_object+0x172/0x490
[ 196.161018] ? acpi_os_signal_semaphore+0x8a/0xd0
[ 196.161038] acpi_evaluate_integer+0x52/0xe0
[ 196.161055] ? kfree+0x79/0x120
[ 196.161071] ? srso_alias_return_thunk+0x5/0x7f
[ 196.161089] acpi_ac_get_state.part.0+0x27/0x80
[ 196.161110] get_ac_property+0x5c/0x70
[ 196.161127] ? __pfx___power_supply_is_system_supplied+0x10/0x10
[ 196.161146] __power_supply_is_system_supplied+0x44/0xb0
[ 196.161166] class_for_each_device+0x124/0x160
[ 196.161184] ? acpi_ac_get_state.part.0+0x27/0x80
[ 196.161203] ? srso_alias_return_thunk+0x5/0x7f
[ 196.161223] power_supply_is_system_supplied+0x3c/0x70
[ 196.161243] amd_pmf_get_power_source+0xe/0x20 [amd_pmf]
[ 196.161276] amd_pmf_power_slider_update_event+0x49/0x90 [amd_pmf]
[ 196.161310] amd_pmf_pwr_src_notify_call+0xe7/0x100 [amd_pmf]
[ 196.161340] notifier_call_chain+0x5f/0xe0
[ 196.161362] atomic_notifier_call_chain+0x33/0x60
[ 196.161378] power_supply_changed_work+0x84/0x110
[ 196.161394] process_one_work+0x178/0x360
[ 196.161412] ? __pfx_worker_thread+0x10/0x10
[ 196.161424] worker_thread+0x307/0x430
[ 196.161440] ? __pfx_worker_thread+0x10/0x10
[ 196.161451] kthread+0xf4/0x130
[ 196.161467] ? __pfx_kthread+0x10/0x10
[ 196.161486] ret_from_fork+0x43/0x70
[ 196.161502] ? __pfx_kthread+0x10/0x10
[ 196.161518] ret_from_fork_asm+0x1b/0x30
[ 196.161558] </TASK>
[ 196.161562] ---[ end trace 0000000000000000 ]---
Since there's no guarantee that all the callbacks can work in atomic
context, switch to use blocking_notifier_call_chain to relax the
constraint.
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Reported-by: Allen Zhong <allen@atr.me>
Fixes: 4c71ae414474 ("platform/x86/amd/pmf: Add support SPS PMF feature")
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217571
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20230913033233.602986-1-kai.heng.feng@canonical.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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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: 29e8142b5623 ("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>
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qcom_battmgr_update_request.battery_id is written to using cpu_to_le32()
and should be of type __le32, just like all other 32bit integer requests
for qcom_battmgr.
Cc: stable@vger.kernel.org # 6.3
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202309162149.4owm9iXc-lkp@intel.com/
Fixes: 29e8142b5623 ("power: supply: Introduce Qualcomm PMIC GLINK power supply")
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20230919124222.1155894-1-sebastian.reichel@collabora.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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Dan Carpenter reports that the Smatch static checker warning has found
that there is another refcount leak in the probe function. While
of_node_put() was added in one of the return paths, it should in
fact be added for ALL return paths that return an error and at driver
removal time.
Fixes: 54c03bfd094f ("power: supply: Fix refcount leak in rk817_charger_probe")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Closes: https://lore.kernel.org/linux-pm/dc0bb0f8-212d-4be7-be69-becd2a3f9a80@kili.mountain/
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Link: https://lore.kernel.org/r/20230920145644.57964-1-macroalpha82@gmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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power_supply_uevent() which is called to emit a udev event on device
deletion attempts to use the power_supply_battery_info structure,
which is device-managed and has been freed before this point.
Fix this by not generating all battery/charger properties when the
device is about to be removed. This also avoids generating errors
when trying to access the hardware in hot-unplug scenarios.
==================================================================
BUG: KASAN: slab-use-after-free in power_supply_battery_info_has_prop (power_supply_core.c:872)
Read of size 4 at addr 0000000062e59028 by task python3/27
Call Trace:
power_supply_battery_info_has_prop (power_supply_core.c:872)
power_supply_uevent (power_supply_sysfs.c:504)
dev_uevent (drivers/base/core.c:2590)
kobject_uevent_env (lib/kobject_uevent.c:558)
kobject_uevent (lib/kobject_uevent.c:643)
device_del (drivers/base/core.c:3266 drivers/base/core.c:3831)
device_unregister (drivers/base/core.c:3730 drivers/base/core.c:3854)
power_supply_unregister (power_supply_core.c:1608)
devm_power_supply_release (power_supply_core.c:1515)
release_nodes (drivers/base/devres.c:506)
devres_release_group (drivers/base/devres.c:669)
i2c_device_remove (drivers/i2c/i2c-core-base.c:629)
device_remove (drivers/base/dd.c:570)
device_release_driver_internal (drivers/base/dd.c:1274 drivers/base/dd.c:1295)
device_driver_detach (drivers/base/dd.c:1332)
unbind_store (drivers/base/bus.c:247)
...
Allocated by task 27:
devm_kmalloc (drivers/base/devres.c:119 drivers/base/devres.c:829)
power_supply_get_battery_info (include/linux/device.h:316 power_supply_core.c:626)
__power_supply_register (power_supply_core.c:1408)
devm_power_supply_register (power_supply_core.c:1544)
bq256xx_probe (bq256xx_charger.c:1539 bq256xx_charger.c:1727) bq256xx_charger
i2c_device_probe (drivers/i2c/i2c-core-base.c:584)
really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658)
__driver_probe_device (drivers/base/dd.c:800)
device_driver_attach (drivers/base/dd.c:1128)
bind_store (drivers/base/bus.c:273)
...
Freed by task 27:
kfree (mm/slab_common.c:1073)
release_nodes (drivers/base/devres.c:503)
devres_release_all (drivers/base/devres.c:536)
device_del (drivers/base/core.c:3829)
device_unregister (drivers/base/core.c:3730 drivers/base/core.c:3854)
power_supply_unregister (power_supply_core.c:1608)
devm_power_supply_release (power_supply_core.c:1515)
release_nodes (drivers/base/devres.c:506)
devres_release_group (drivers/base/devres.c:669)
i2c_device_remove (drivers/i2c/i2c-core-base.c:629)
device_remove (drivers/base/dd.c:570)
device_release_driver_internal (drivers/base/dd.c:1274 drivers/base/dd.c:1295)
device_driver_detach (drivers/base/dd.c:1332)
unbind_store (drivers/base/bus.c:247)
...
==================================================================
Reported-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Fixes: 27a2195efa8d ("power: supply: core: auto-exposure of simple-battery data")
Tested-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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It is spurious to bail-out on a wait_for_completion_timeout() call that
does NOT timeout.
Reverse the logic to return -ETIMEDOUT instead, in case of tiemout.
Fixes: 6f7f70e3a8dd ("power: supply: rt9467: Add Richtek RT9467 charger driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: ChiYuan Huang <cy_huang@richtek.com>
Link: https://lore.kernel.org/r/2ed01020fa8a135c36dbaa871095ded47d926507.1676464968.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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Similar to the rk817 codec alias that was missing, the rk817 charger
driver is missing a module alias as well. This absence prevents the
driver from autoprobing on OF systems when it is built as a module.
Add the right MODULE_ALIAS to fix this.
Fixes: 11cb8da0189b ("power: supply: Add charger driver for Rockchip RK817")
Cc: stable@vger.kernel.org
Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
Reviewed-by: Chris Morgan <macromorgan@hotmail.com>
Link: https://lore.kernel.org/r/20230612143651.959646-2-frattaroli.nicolas@gmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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This function is supposed to return 0 for success instead of returning
the val->intval. This makes it the same as the other case statements
in this function.
Fixes: 81196e2e57fc ("power: supply: ucs1002: fix some health status issues")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/687f64a4-4c6e-4536-8204-98ad1df934e5@moroto.mountain
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
|
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When building with clang 18 I see the following warning:
| drivers/power/reset/vexpress-poweroff.c:124:10: warning: cast to smaller integer type 'enum vexpress_reset_func' from 'const void *' [-Wvoid-pointer-to-enum-cast]
| 124 | switch ((enum vexpress_reset_func)match->data) {
This is due to the fact that `match->data` is a void* while `enum vexpress_reset_func`
has the size of an int. This leads to truncation and possible data loss.
Link: https://github.com/ClangBuiltLinux/linux/issues/1910
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Justin Stitt <justinstitt@google.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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Documentation/process/license-rules.rst and checkpatch expect the SPDX
identifier syntax for multiple licenses to use capital "OR". Correct it
to keep consistent format and avoid copy-paste issues.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230823085601.116562-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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