[PATCH 00/13] add AUXADC, EFUSE and thermal drivers for the MediaTek mt6323 PMIC

Roman Vivchar via B4 Relay
2026-05-04T18:25:09Z

This series adds support for AUXADC, EFUSE and thermal drivers for the
MediaTek mt6323 PMIC

Usually vendor downstream kernels for devices with mt6323 include various
useful drivers like AUXADC, thermal, fuel gauge etc. Bring it to the
upstream kernel by rewriting some drivers from 3.18 vendor tree.

Currently dt-bindings limit some values like ADC channel count and names
to what mt6323 has, but the drivers were designed in a way to support
other PMICs like mt6358 (which has very similar thermal logic).

Tested on the MediaTek mt6572 and mt8163 SoCs, both paired with mt6323.

Tested-by: Ben Grisdale <bengris32@protonmail.ch> # Amazon Echo Dot (2nd Generation)
Signed-off-by: Roman Vivchar <rva333@protonmail.com>
---
Roman Vivchar (13):
dt-bindings: iio: adc: add mt6323 PMIC AUXADC
dt-bindings: nvmem: add mt6323 PMIC EFUSE
dt-bindings: thermal: add mt6323 PMIC thermal
iio: adc: mediatek: add mt6323 PMIC AUXADC driver
nvmem: add mt6323 PMIC EFUSE driver
thermal: mediatek: add pmic thermal support
mfd: mt6397-core: add mt6323 AUXADC support
mfd: mt6397-core: add support for mt6323 efuse
mfd: mt6397-core: add support for mt6323 thermal
ARM: dts: mediatek: mt6323: add support for AUXADC
ARM: dts: mediatek: mt6323: add support for EFUSE
ARM: dts: mediatek: mt6323: add support for thermal
MAINTAINERS: add mt6323 drivers maintainer

.../bindings/iio/adc/mediatek,mt6323-auxadc.yaml | 39 +++
.../bindings/nvmem/mediatek,mt6323-efuse.yaml | 42 +++
.../bindings/thermal/mediatek,mt6323-thermal.yaml | 63 ++++
MAINTAINERS | 18 +
arch/arm/boot/dts/mediatek/mt6323.dtsi | 42 +++
drivers/iio/adc/Kconfig | 11 +
drivers/iio/adc/Makefile | 1 +
drivers/iio/adc/mt6323-auxadc.c | 372 +++++++++++++++++++++
drivers/mfd/mt6397-core.c | 9 +
drivers/nvmem/Kconfig | 11 +
drivers/nvmem/Makefile | 2 +
drivers/nvmem/mt6323-efuse.c | 86 +++++
drivers/thermal/mediatek/Kconfig | 9 +
drivers/thermal/mediatek/Makefile | 1 +
drivers/thermal/mediatek/pmic_thermal.c | 274 +++++++++++++++
.../dt-bindings/iio/adc/mediatek,mt6323-auxadc.h | 16 +
16 files changed, 996 insertions(+)
---
base-commit: 028ef9c96e96197026887c0f092424679298aae8
change-id: 20260502-mt6323-94e1f2d2abb3

Best regards,
--
Roman Vivchar <rva333@protonmail.com>