linux-kernel - [PATCH 2/2] iio: adc: ad7476: Support ROHM BU79100G

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Message-ID: <a6d84a4c9cdd961fbda38182501983f26cceadc9.1747123883.git.mazziesaccount@gmail.com>
Date: Tue, 13 May 2025 11:26:39 +0300
From: Matti Vaittinen <mazziesaccount@...il.com>
To: Matti Vaittinen <mazziesaccount@...il.com>,
	Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
Cc: Lars-Peter Clausen <lars@...afoo.de>,
	Michael Hennerich <Michael.Hennerich@...log.com>,
	Jonathan Cameron <jic23@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, linux-iio@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] iio: adc: ad7476: Support ROHM BU79100G

ROHM BU79100G is a 12-bit, single channel ADC. Support reading ADC
measurements using the ad7476.c

Signed-off-by: Matti Vaittinen <mazziesaccount@...il.com>
---
 drivers/iio/adc/ad7476.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/iio/adc/ad7476.c b/drivers/iio/adc/ad7476.c
index 37b0515cf4fc..6c5c57de6a58 100644
--- a/drivers/iio/adc/ad7476.c
+++ b/drivers/iio/adc/ad7476.c
@@ -2,6 +2,7 @@
 /*
  * Analog Devices AD7466/7/8 AD7476/5/7/8 (A) SPI ADC driver
  * TI ADC081S/ADC101S/ADC121S 8/10/12-bit SPI ADC driver
+ * ROHM BU79100G 12-bit SPI ADC driver
  *
  * Copyright 2010 Analog Devices Inc.
  */
@@ -72,6 +73,7 @@ enum ad7476_supported_device_ids {
 	ID_ADS7866,
 	ID_ADS7867,
 	ID_ADS7868,
+	ID_BU79100G,
 	ID_LTC2314_14,
 };
 
@@ -281,6 +283,10 @@ static const struct ad7476_chip_info ad7476_chip_info_tbl[] = {
 		.channel[0] = ADS786X_CHAN(8),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
+	[ID_BU79100G] = {
+		.channel[0] = ADS786X_CHAN(12),
+		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
+	},
 	[ID_LTC2314_14] = {
 		.channel[0] = AD7940_CHAN(14),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
@@ -311,6 +317,7 @@ static int ad7476_probe(struct spi_device *spi)
 		return -ENOMEM;
 
 	st = iio_priv(indio_dev);
+
 	st->chip_info =
 		&ad7476_chip_info_tbl[spi_get_device_id(spi)->driver_data];
 
@@ -435,6 +442,7 @@ static const struct spi_device_id ad7476_id[] = {
 	{ "ads7866", ID_ADS7866 },
 	{ "ads7867", ID_ADS7867 },
 	{ "ads7868", ID_ADS7868 },
+	{ "bu79100g", ID_BU79100G },
 	{ "ltc2314-14", ID_LTC2314_14 },
 	{ }
 };
-- 
2.49.0


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