MediaTek MT6373 is a PMIC found on MT8196/MT6991 board designs
and communicates with the SoC over SPMI.
This PMIC integrates an Auxiliary ADC (AUXADC) which has a grand
total of 54 channels, of which usually only 9 are used as this
is usually paired with MT6363 on the same board.
For the Auxiliary ADC part, this reuses the same register layout
as the MT6363 PMIC, but exposes only a subset of the ADC chans.
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250703141146.171431-7-angelogioacchino.delregno@collabora.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
MediaTek MT6363 is a PMIC found on MT8196/MT6991 board designs
and communicates with the SoC over SPMI.
This PMIC integrates an Auxiliary ADC (AUXADC) which has a grand
total of 54 ADC channels: 49 PMIC-internal channels, 2 external
NTC thermistor channels and 2 generic ADC channels (mapped to 7
PMIC ADC external inputs).
To use a generic ADC channel it is necessary to enable one of
the PMIC ADC inputs at a time and only then start the reading,
so in this case it is possible to read only one external input
for each generic ADC channel.
Due to the lack of documentation, this implementation supports
using only one generic ADC channel, hence supports reading only
one external input at a time.
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250703141146.171431-6-angelogioacchino.delregno@collabora.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
In preparation to add support for new PMICs, add a `vref_mv`
member to struct mtk_pmic_auxadc_info and use it in place of
the AUXADC_VOLT_FULL definition.
As a consequence, the definition was also removed.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250703141146.171431-5-angelogioacchino.delregno@collabora.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
In preparation for adding support for the AUXADC block found in
the MT6363 PMIC, add the ready register index and mask to the
mtk_pmic_auxadc_chan structure, populate those in the channel
description for all of the already supported SoCs and make use
of them in the .read_imp() callbacks.
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250703141146.171431-4-angelogioacchino.delregno@collabora.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Use `\t(\{ ?\},|\{\}|\{\s*/\*.*\*/\s*\},?)$` regex to find and replace
the array sentinel in all IIO drivers to the same style.
For some time, we've been trying to consistently use `{ }` (no trailing
comma, no comment, one space between braces) for array sentinels in the
IIO subsystem. Still nearly 50% of existing code uses a different style.
To save reviewers from having to request this trivial change as
frequently, let's normalize the style in all existing IIO drivers.
At least when code is copy/pasted to new drivers, the style will be
consistent.
Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://patch.msgid.link/20250411-iio-sentinel-normalization-v1-1-d293de3e3d93@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add a driver to support reading the Auxiliary ADC IP found in the
MediaTek MT6357, MT6358 and MT6359 Power Management ICs, featuring
a different register layout, configuration reset and ADC reading
sequence from the other already supported MediaTek SoC or PMIC
(aux)ADC HW.
This driver provides multiple ADC channels for system monitoring,
such as battery voltage, PMIC temperature, PMIC-internal voltage
regulators temperature, and others.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://patch.msgid.link/20240604123008.327424-5-angelogioacchino.delregno@collabora.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
