mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-09-06 13:09:58 +00:00
7406fd75a9
- Add support for Ampere Computing SMpro
- Add support for TI TPS65219 PMIC
- New Functionality
- Add support for multiple devices of the same type; rk808
- Fix-ups
- Convert a bunch of I2C class drivers over to .probe_new()
- Remove superfluous includes; mc13xxx-*, palmas, timberdale
- Use correct includes for GPIO handling; madera-core
- Convert to GPIOD; twl6040
- Remove unused platform data handling; twl6040
- Device Tree changes; many
- Remove unused drivers; dm355evm_msp, davinci_voicecodec, htc-i2cpld
- Add support for modules; palmas
- Enable COMPILE_TEST support; intel_soc_pmic*
- Trivial: spelling / whitespace fixes; mc13xxx-spi
- Replace old PM helpers with new ones; many
- Convert deprecated mask_invert usage to unmask_base; many
- Use devm_*() calls; qcom_rpm
- MAINTAINER fix-ups
- Make use of improved / replaced APIs; palmas, fsl-imx25-tsadc,
stm32-lptimer, qcom_rpm, rohm-*
- Bug Fixes
- Add bounds / error checking; mt6360-core
- No sleeping inside critical sections; axp20x
- Fix missing dependencies; ROHM_BD957XMUF
- Repair error paths; qcom-pm8008
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Merge tag 'mfd-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Drivers:
- Add support for Ampere Computing SMpro
- Add support for TI TPS65219 PMIC
New Functionality:
- Add support for multiple devices of the same type; rk808
Fix-ups:
- Convert a bunch of I2C class drivers over to .probe_new()
- Remove superfluous includes; mc13xxx-*, palmas, timberdale
- Use correct includes for GPIO handling; madera-core
- Convert to GPIOD; twl6040
- Remove unused platform data handling; twl6040
- Device Tree changes; many
- Remove unused drivers; dm355evm_msp, davinci_voicecodec, htc-i2cpld
- Add support for modules; palmas
- Enable COMPILE_TEST support; intel_soc_pmic*
- Trivial: spelling / whitespace fixes; mc13xxx-spi
- Replace old PM helpers with new ones; many
- Convert deprecated mask_invert usage to unmask_base; many
- Use devm_*() calls; qcom_rpm
- MAINTAINER fix-ups
- Make use of improved / replaced APIs; palmas, fsl-imx25-tsadc,
stm32-lptimer, qcom_rpm, rohm-*
Bug Fixes:
- Add bounds / error checking; mt6360-core
- No sleeping inside critical sections; axp20x
- Fix missing dependencies; ROHM_BD957XMUF
- Repair error paths; qcom-pm8008"
* tag 'mfd-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (161 commits)
dt-bindings: mfd: da9062: Correct file name for watchdog
mfd: pm8008: Fix return value check in pm8008_probe()
mfd: rohm: Use dev_err_probe()
mfd: Drop obsolete dependencies on COMPILE_TEST
dt-bindings: mfd: da9062: Move IRQ to optional properties
mfd: qcom_rpm: Use devm_of_platform_populate() to simplify code
mfd: qcom_rpm: Fix an error handling path in qcom_rpm_probe()
mfd: stm32-lptimer: Use devm_platform_get_and_ioremap_resource()
mfd: rohm-bd9576: Convert to i2c's .probe_new()
mfd: fsl-imx25-tsadc: Use devm_platform_get_and_ioremap_resource()
dt-bindings: Fix maintainer email for a few ROHM ICs
mfd: palmas: Use device_get_match_data() to simplify the code
Input: Add tps65219 interrupt driven powerbutton
mfd: tps65219: Add driver for TI TPS65219 PMIC
mfd: bd957x: Fix Kconfig dependency on REGMAP_IRQ
mfd: wcd934x: Convert irq chip to config regs
mfd: tps65090: Replace irqchip mask_invert with unmask_base
mfd: sun4i-gpadc: Replace irqchip mask_invert with unmask_base
mfd: stpmic1: Fix swapped mask/unmask in irq chip
mfd: sprd-sc27xx-spi: Replace irqchip mask_invert with unmask_base
...
165 lines
6.1 KiB
YAML
165 lines
6.1 KiB
YAML
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/power/supply/rohm,bd99954.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: ROHM BD99954 Battery charger
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maintainers:
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- Matti Vaittinen <mazziesaccount@gmail.com>
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- Markus Laine <markus.laine@fi.rohmeurope.com>
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- Mikko Mutanen <mikko.mutanen@fi.rohmeurope.com>
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description: |
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The ROHM BD99954 is a Battery Management LSI for 1-4 cell Lithium-Ion
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secondary battery intended to be used in space-constraint equipment such
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as Low profile Notebook PC, Tablets and other applications. BD99954
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provides a Dual-source Battery Charger, two port BC1.2 detection and a
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Battery Monitor.
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$ref: power-supply.yaml#
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properties:
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compatible:
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const: rohm,bd99954
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#
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# The battery charging profile of BD99954.
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#
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# Curve (1) represents charging current.
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# Curve (2) represents battery voltage.
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#
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# The BD99954 data sheet divides charging to three phases.
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# a) Trickle-charge with constant current (8).
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# b) pre-charge with constant current (6)
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# c) fast-charge with:
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# First a constant current (5) phase (CC)
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# Then constant voltage (CV) phase (after the battery voltage has reached
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# target level - until charging current has dropped to termination
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# level (7)
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#
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# V ^ ^ I
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# . .
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# . .
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# (4)- -.- - - - - - - - - - - - - - +++++++++++++++++++++++++++.
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# . / .
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# . ++++++/++ - - - - - - - - - - - - -.- - (5)
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# . + / + .
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# . + - -- .
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# . + - + .
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# . +.- -: .
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# . .+ +` .
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# . .- + | `/ .
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# . .." + .: .
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# . -" + -- .
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# . (2) ..." + | :- .
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# . ..."" + -: .
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# (3)- -.-.""- - - - -+++++++++ - - - - - - -.:- - - - - - - - - .- - (6)
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# . + `:. .
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# . + | -: .
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# . + -: .
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# . + .. .
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# . (1) + | "+++- - - -.- - (7)
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# -++++++++++++++- - - - - - - - - - - - - - - - - + - - - .- - (8)
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# . + -
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# -------------------------------------------------+++++++++-->
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# | | | CC | CV |
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# | --trickle-- | -pre- | ---------fast----------- |
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#
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# The charger uses the following battery properties
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# - trickle-charge-current-microamp:
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# Current used at trickle-charge phase (8 in above chart)
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# minimum: 64000
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# maximum: 1024000
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# multipleOf: 64000
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# - precharge-current-microamp:
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# Current used at pre-charge phase (6 in above chart)
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# minimum: 64000
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# maximum: 1024000
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# multipleOf: 64000
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# - constant-charge-current-max-microamp
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# Current used at fast charge constant current phase (5 in above chart)
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# minimum: 64000
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# maximum: 1024000
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# multipleOf: 64000
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# - constant-charge-voltage-max-microvolt
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# The constant voltage used in fast charging phase (4 in above chart)
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# minimum: 2560000
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# maximum: 19200000
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# multipleOf: 16000
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# - precharge-upper-limit-microvolt
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# charging mode is changed from trickle charging to pre-charging
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# when battery voltage exceeds this limit voltage (3 in above chart)
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# minimum: 2048000
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# maximum: 19200000
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# multipleOf: 64000
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# - re-charge-voltage-microvolt
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# minimum: 2560000
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# maximum: 19200000
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# multipleOf: 16000
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# re-charging is automatically started when battry has been discharging
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# to the point where the battery voltage drops below this limit
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# - over-voltage-threshold-microvolt
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# battery is expected to be faulty if battery voltage exceeds this limit.
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# Charger will then enter to a "battery faulty" -state
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# minimum: 2560000
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# maximum: 19200000
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# multipleOf: 16000
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# - charge-term-current-microamp
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# minimum: 0
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# maximum: 1024000
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# multipleOf: 64000
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# a charge cycle terminates when the battery voltage is above recharge
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# threshold, and the current is below this setting (7 in above chart)
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# See also Documentation/devicetree/bindings/power/supply/battery.yaml
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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monitored-battery:
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description:
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phandle of battery characteristics devicetree node
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rohm,vsys-regulation-microvolt:
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description: system specific lower limit for system voltage.
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minimum: 2560000
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maximum: 19200000
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multipleOf: 64000
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rohm,vbus-input-current-limit-microamp:
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description: system specific VBUS input current limit (in microamps).
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minimum: 32000
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maximum: 16352000
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multipleOf: 32000
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rohm,vcc-input-current-limit-microamp:
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description: system specific VCC/VACP input current limit (in microamps).
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minimum: 32000
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maximum: 16352000
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multipleOf: 32000
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required:
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- compatible
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additionalProperties: false
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examples:
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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charger@9 {
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compatible = "rohm,bd99954";
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monitored-battery = <&battery>;
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reg = <0x9>;
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interrupt-parent = <&gpio1>;
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interrupts = <29 8>;
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rohm,vsys-regulation-microvolt = <8960000>;
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rohm,vbus-input-current-limit-microamp = <1472000>;
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rohm,vcc-input-current-limit-microamp = <1472000>;
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};
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};
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