linux-kernel - [PATCH v1 0/3] meson saradc: add iio channels to read channel 7 mux inputs

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Date:   Wed, 21 Jun 2023 09:26:07 +0300
From:   George Stark <gnstark@...rdevices.ru>
To:     <jic23@...nel.org>, <lars@...afoo.de>, <neil.armstrong@...aro.org>,
        <khilman@...libre.com>, <jbrunet@...libre.com>,
        <martin.blumenstingl@...glemail.com>,
        <andriy.shevchenko@...ux.intel.com>, <nuno.sa@...log.com>,
        <gnstark@...rdevices.ru>
CC:     <linux-iio@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-amlogic@...ts.infradead.org>, <kernel@...rdevices.ru>,
        George Stark <GNStark@...rdevices.ru>
Subject: [PATCH v1 0/3] meson saradc: add iio channels to read channel 7 mux inputs

From: George Stark <GNStark@...rdevices.ru>

In meson saradc channel7 is connected to muxer which allows to measure
inner sources like Vdd, GND, several Vdd dividers. This patch series
adds independent iio channel (with label) for every chan7 mux input.
Mux switch is handled transparent for clients.
This functionality can help debug\test\calibrate adc.
This code is relevant for all supported amlogic soc families

This patch series was created after discussion [1], [2]

[1] https://lore.kernel.org/lkml/20230524000111.14370-1-gnstark@sberdevices.ru/
[2] https://lore.kernel.org/lkml/20230527214854.126517-1-gnstark@sberdevices.ru/

George Stark (3):
  meson saradc: code refactoring
  meson saradc: add channel labels
  meson saradc: support reading from channel7 mux inputs

 drivers/iio/adc/meson_saradc.c | 165 +++++++++++++++++++++++----------
 1 file changed, 115 insertions(+), 50 deletions(-)

-- 
2.38.4