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Tue, 13 May 2025 01:26:32 -0700 (PDT) Received: from mva-rohm ([2a10:a5c0:800d:dd00:8fdf:935a:2c85:d703]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-326c339a410sm16525401fa.2.2025.05.13.01.26.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 May 2025 01:26:31 -0700 (PDT) Date: Tue, 13 May 2025 11:26:27 +0300 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/2] dt-bindings: iio: adc: Add ROHM BD79100G Message-ID: <7deb4b69795c298ba51c9b198bc87000ad35cc9b.1747123883.git.mazziesaccount@gmail.com> References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="G87Qcv+pHgJx6oip" Content-Disposition: inline In-Reply-To: --G87Qcv+pHgJx6oip Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" The ROHM BD79100G is a 12-bit ADC which can be read over SPI. Device has no MOSI pin. ADC results can be read from MISO by clocking in 16 bits. The 4 leading bits will be zero, last 12 containig the data. Device has only VCC supply pin, which acts also as a VFS, determining the voltage for full 12-bits. Specifying it is mandatory. Signed-off-by: Matti Vaittinen Acked-by: Conor Dooley --- Documentation/devicetree/bindings/iio/adc/adi,ad7476.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7476.yaml b/Do= cumentation/devicetree/bindings/iio/adc/adi,ad7476.yaml index 44c671eeda73..10fb6e14c2d0 100644 --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7476.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7476.yaml @@ -46,6 +46,7 @@ properties: - ti,ads7867 - ti,ads7868 - lltc,ltc2314-14 + - rohm,bu79100g =20 reg: maxItems: 1 @@ -96,6 +97,7 @@ allOf: - ti,adc121s - ti,ads7866 - ti,ads7868 + - rohm,bu79100g then: required: - vcc-supply --=20 2.49.0 --G87Qcv+pHgJx6oip Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEIx+f8wZb28fLKEhTeFA3/03aocUFAmgjAjMACgkQeFA3/03a ocWKOQgAqBJq56UJHZ3O4fsoQdwlHHtkxWpWWMhhskt5hACtrAkC2bd5hsnuKj9e cRjbz3sfeF9fVcIACgZY0ZVfOrit+uZ7Ua4xp8WicU669IzZPq0prtmc7jHFMpyD tmw9memptcbPeR8ZW2oULMX9x+siV179QLjZYk4VrypaEGtDP0JzlCYELExerrud Tb2APbw86AGH6rMTQ3IqE48rJgcvHCu49OmQ32rxandrFWrEK7lxtazI05oDNHyS PFBTvNJYxP+WOBSIUCT0iBnangeL0BbXDZYXaEp1bP6D3GzvDGc5BuXVxIIs/u+/ r/hfUvR3f853l8Ik4AfEL2dgeNUxGw== =OtIz -----END PGP SIGNATURE----- --G87Qcv+pHgJx6oip-- From nobody Sat Feb 7 21:14:43 2026 Received: from mail-lf1-f41.google.com (mail-lf1-f41.google.com [209.85.167.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A1D0D204583; 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Tue, 13 May 2025 01:26:44 -0700 (PDT) Received: from mva-rohm ([2a10:a5c0:800d:dd00:8fdf:935a:2c85:d703]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-54fc64cc3f3sm1760230e87.216.2025.05.13.01.26.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 May 2025 01:26:43 -0700 (PDT) Date: Tue, 13 May 2025 11:26:39 +0300 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/2] iio: adc: ad7476: Support ROHM BU79100G Message-ID: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="VZ2m/pwvKXA9PH9w" Content-Disposition: inline In-Reply-To: --VZ2m/pwvKXA9PH9w Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" ROHM BU79100G is a 12-bit, single channel ADC. Support reading ADC measurements using the ad7476.c Signed-off-by: Matti Vaittinen --- 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, }; =20 @@ -281,6 +283,10 @@ static const struct ad7476_chip_info ad7476_chip_info_= tbl[] =3D { .channel[0] =3D ADS786X_CHAN(8), .channel[1] =3D IIO_CHAN_SOFT_TIMESTAMP(1), }, + [ID_BU79100G] =3D { + .channel[0] =3D ADS786X_CHAN(12), + .channel[1] =3D IIO_CHAN_SOFT_TIMESTAMP(1), + }, [ID_LTC2314_14] =3D { .channel[0] =3D AD7940_CHAN(14), .channel[1] =3D IIO_CHAN_SOFT_TIMESTAMP(1), @@ -311,6 +317,7 @@ static int ad7476_probe(struct spi_device *spi) return -ENOMEM; =20 st =3D iio_priv(indio_dev); + st->chip_info =3D &ad7476_chip_info_tbl[spi_get_device_id(spi)->driver_data]; =20 @@ -435,6 +442,7 @@ static const struct spi_device_id ad7476_id[] =3D { { "ads7866", ID_ADS7866 }, { "ads7867", ID_ADS7867 }, { "ads7868", ID_ADS7868 }, + { "bu79100g", ID_BU79100G }, { "ltc2314-14", ID_LTC2314_14 }, { } }; --=20 2.49.0 --VZ2m/pwvKXA9PH9w Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEIx+f8wZb28fLKEhTeFA3/03aocUFAmgjAj8ACgkQeFA3/03a ocU6qgf+PzR7eP+9s0Qu990z1detKnJ6AaAP29dqT/TbTCFE7k846KqDOzO06UNZ tOfJEmK/Q1ltlQW2BrUfTrRJuPvISTluIbuiKWrZHRircvPx5sRpRWPM/eV3MAkE onRtALIMm2HeYhQj3eBhaDzn/KFdP6QB2HNt9a0ygkoWwz9yMHaV1pwbUC71XALG NDZ5g9XwvCujwLFo9sbVOPYlVLJ5d1jKDGnaXrz7XA8NKnejdVKem2nZCKPVTwK6 aNxNmp0vPDzId8kJO+Rawd1D5X7TVDejXA2Nrk7lkPeEx+g03b4nIt5i343HJYfo JyC3m4i1xPp57IZDWqOu1iymhQLumA== =zzEI -----END PGP SIGNATURE----- --VZ2m/pwvKXA9PH9w--