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path: root/drivers/power/supply/rt9471.c
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2026-09-10power: supply: rt9471: Use POWER_SUPPLY_PROP_LOAD_SWITCHWaqar Hameed
The framework supports controlling system load with `POWER_SUPPLY_PROP_LOAD_SWITCH`. Use this to control the BATFET, but keep old custom `sysfs` ABI for backward compatibility. However, add a note in ABI documentation that one should prefer the property `load_switch` instead. Signed-off-by: Waqar Hameed <waqar.hameed@axis.com> Link: https://patch.msgid.link/aff418f8059465203ef814a1b508b84741175ab9.1788290289.git.waqar.hameed@axis.com Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2026-08-21Merge tag 'for-v7.3' of ↵Linus Torvalds
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: - Add PbAc, NiZn, RAM, and ZnAr battery chemistry types - Create LED triggers based on properties instead of device type - Provide power_supply_get_system_batteries() for usage with USB-C - Add registration init callback for race-free device setup Power-supply drivers: - new TI BQ25630 charger driver - new SG Micro sgm41542 charger driver - bq257xx: Add support for BQ25792 - max8903: add DC and USB input current-limit controls - max17042_battery: Initialize MAX17055 from battery info - sbs-battery: map newly introduced battery chemistries - drop extra error messages for IRQ request failures - lot's of driver removal race condition fixes - misc small cleanups and fixes Reset drivers: - add MCF5441x RCM power-on reason driver - misc small cleanups and fixes" * tag 'for-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (115 commits) power: supply: bq27xxx: bq27z561: fix invalid AverageEnergy address power: supply: bq27xxx: bq28z610: fix invalid AverageEnergy address power: supply: bq27xxx: bq27520g4: fix REG_TTES address power: supply: max17040: synchronize work cancellation on suspend power: supply: lp8727: fix use-after-free in lp8727_release_irq() power: supply: bq256xx: drain usb_work before freeing the charger power: supply: qcom_battmgr: fix battery chemistry strncmp length power: supply: bd99954: Drop bad register fields power: supply: bd71828: Do not hide errors power: supply: bd71828: Drop duplicate power-supply property power: supply: bd71828: Fix current direction power: supply: bd71815: Fix temperature reading power: supply: add stubs for notifier registration helpers power: supply: ucs1002: fix use-after-free on remove power: supply: lp8788-charger: fix use-after-free on remove power: supply: ab8500_fg: fix use-after-free on remove power: supply: bq24257: fix use-after-free on remove power: supply: qcom_battmgr: fix use-after-free power: supply: max17040: drop incorrect I2C functionality check power: supply: charger-manager: register regulators before exposing sysfs ...
2026-07-22power: supply: rt9471: Remove superfluous unpacking of propvalWaqar Hameed
Remove extra variable in `set/get_property`-functions that is only supplied directly to other functions. The value is not used for anything else. Moreover, wrap these lines. Otherwise `checkpatch` warns about too long lines. Signed-off-by: Waqar Hameed <waqar.hameed@axis.com> Link: https://patch.msgid.link/6b4367512dfad62e865de8b6be52eefd5385fa26.1782746851.git.waqar.hameed@axis.com Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2026-07-18power: supply: rt9471: Remove redundant dev_err()/dev_err_probe()Pan Chuang
The devm_request_threaded_irq() and devm_request_irq() now automatically log detailed error messages on failure. This eliminates the need for driver-specific dev_err() and dev_err_probe() calls that previously printed generic messages. Signed-off-by: Pan Chuang <panchuang@vivo.com> Link: https://patch.msgid.link/20260709033428.362970-36-panchuang@vivo.com Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2026-07-03Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c ↵Uwe Kleine-König (The Capable Hub)
files) Replace the #include of <linux/mod_devicetable.h> by the more specific <linux/device-id/*.h> where applicable. For most cases the include can be dropped completely, only a few drivers need one or two headers added. Acked-by: Danilo Krummrich <dakr@kernel.org> Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://patch.msgid.link/1a3f2007c5c5dcf555c09a4035ce3ae8ef1b6c49.1782808461.git.u.kleine-koenig@baylibre.com Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
2025-05-03power: supply: rt9471: Simplify definition of some struct linear_rangeChristophe JAILLET
Use LINEAR_RANGE() instead of hand-writing it. It is less verbose. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/0da94193c5f8b35fa98f25a852d74b841670bd6e.1746197233.git.christophe.jaillet@wanadoo.fr Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2025-03-08power: supply: all: switch psy_cfg from of_node to fwnodeSebastian Reichel
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>
2024-10-16power: supply: rt9471: Use IC status regfield to report real charger statusChiYuan Huang
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>
2024-10-16power: supply: rt9471: Fix wrong WDT function regfield declarationChiYuan Huang
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>
2024-09-03power: supply: Change usb_types from an array into a bitmaskHans de Goede
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>
2023-06-04power: supply: Switch i2c drivers back to use .probe()Uwe Kleine-König
After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then 03c835f498b5 ("i2c: Switch .probe() to not take an id parameter") convert back to (the new) .probe() to be able to eventually drop .probe_new() from struct i2c_driver. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2023-02-13power: supply: rt9471: fix using wrong ce_gpio in rt9471_probe()Yang Yingliang
Pass the correct 'ce_gpio' to IS_ERR(), and remove the ce_gpio in chip data, make it all by SW control only, not to control by HW pin. Fixes: 4a1a5f6781d8 ("power: supply: rt9471: Add Richtek RT9471 charger driver") Reviewed-by: ChiYuan Huang <cy_huang@richtek.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2023-02-03power: supply: rt9471: Add Richtek RT9471 charger driverChiYuan Huang
Add support for the RT9471 3A 1-Cell Li+ battery charger. The RT9471 is a highly-integrated 3A switch mode battery charger with low impedance power path to better optimize the charging efficiency. Co-developed-by: Alina Yu <alina_yu@richtek.com> Signed-off-by: Alina Yu <alina_yu@richtek.com> Signed-off-by: ChiYuan Huang <cy_huang@richtek.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>