[PATCH v2 0/4] AUXADC driver for the MediaTek mt6323 PMIC
From: Roman Vivchar via B4 Relay <devnull+rva333.protonmail.com@kernel.org>
Date: 2026-06-09 13:32:19
Also in:
b4-sent, linux-devicetree, linux-iio, linux-mediatek, lkml
This series adds support for the 15-bit AUXADC hardware block found on the MediaTek mt6323 PMIC. The previous version of the series for all AUXADC, EFUSE and thermal drivers was split after Krzysztof's comment [1]. Tested on the MediaTek mt6572 and mt8163 SoCs (Ben), both paired with a mt6323. The other parts (EFUSE and thermal) will probably be sent this week. [1]: https://lore.kernel.org/linux-mediatek/20260504-mt6323-v1-0-799b58b355ff@protonmail.com/T/#med30fad67a090be35f549231336b2dec295233f6 (local) Tested-by: Ben Grisdale <redacted> # Amazon Echo Dot (2nd Generation) Signed-off-by: Roman Vivchar <redacted> --- Changes in v2: - AUXADC driver: - Drop channel type from the MTK_PMIC_IIO_CHAN macro (Nuno) - Drop kerneldoc for the mt6323_auxadc struct (Nuno) - Add channel release to save power (Sashiko, Jonathan) - Drop 'reg' variable in the mt6323_auxadc_read (Jonathan) - Sort variables in the mt6323_auxadc_probe (Jonathan) - Maintainers: - Drop linux-mediatek list (Andy) - Split between dt-bindings and driver to avoid missing file (Nuno) - Link to v1: https://patch.msgid.link/20260602-mt6323-adc-v1-0-68ec737508ee@protonmail.com Changes after split: - dt-bindings: Change 'MT63xx' to 'MT6350 series and similar' (Jonathan) - AUXADC driver: - Add missing headers (Andy) - Fix AUXADC_TRIM_CH* values (Andy) - Rename masks to include their register name (Jonathan) - Fix formatting (Andy, Jonathan) - Replace channel address with actual register value (Jonathan), align the table - Replace IIO_TEMP with IIO_VOLTAGE, since the actual output is still mV, not mC - Rename constants to match their registers (Jonathan) - Remove 'if/else if/else' in the mt6323_auxadc_read_raw (Andy) - Add comments for fsleep, ADC range and resolution (Andy, Jonathan) - Remove useless error messages (Andy) - Maintainers: - Explicitly include mt6323 in the name (Jonathan) - Squash with AUXADC driver commit (Krzysztof) - Set status back to 'Maintained' - Link to a previous series: https://patch.msgid.link/20260512-mt6323-v2-0-3efcba579e88@protonmail.com --- Roman Vivchar (4): dt-bindings: iio: adc: mediatek,mt6359-auxadc: add mt6323 PMIC AUXADC iio: adc: mt6323-auxadc: add mt6323 PMIC AUXADC driver mfd: mt6397-core: add mt6323 AUXADC support ARM: dts: mediatek: mt6323: add AUXADC support .../bindings/iio/adc/mediatek,mt6359-auxadc.yaml | 3 +- MAINTAINERS | 7 + arch/arm/boot/dts/mediatek/mt6323.dtsi | 5 + drivers/iio/adc/Kconfig | 11 + drivers/iio/adc/Makefile | 1 + drivers/iio/adc/mt6323-auxadc.c | 305 +++++++++++++++++++++ drivers/mfd/mt6397-core.c | 3 + .../dt-bindings/iio/adc/mediatek,mt6323-auxadc.h | 24 ++ 8 files changed, 358 insertions(+), 1 deletion(-) --- base-commit: 028ef9c96e96197026887c0f092424679298aae8 change-id: 20260525-mt6323-adc-3befce36cbf2 Best regards, -- Roman Vivchar [off-list ref]