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Fri, 6 Feb 2026 08:09:13 -0500 From: Antoniu Miclaus To: Lars-Peter Clausen , Michael Hennerich , Antoniu Miclaus , Jonathan Cameron , David Lechner , =?UTF-8?q?Nuno=20S=C3=A1?= , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , , , Subject: [PATCH 2/6] iio: adc: ad4080: add support for AD4082 Date: Fri, 6 Feb 2026 15:08:21 +0200 Message-ID: <51281e19fe2955cb10ffb77b62b0d7738e9b5a93.1770382796.git.antoniu.miclaus@analog.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-ORIG-GUID: HbjnBVgcNEb3RmhcFbGs8gnRzx008mqy X-Proofpoint-GUID: HbjnBVgcNEb3RmhcFbGs8gnRzx008mqy X-Authority-Analysis: v=2.4 cv=eqzSD4pX c=1 sm=1 tr=0 ts=6985e800 cx=c_pps a=3WNzaoukacrqR9RwcOSAdA==:117 a=3WNzaoukacrqR9RwcOSAdA==:17 a=HzLeVaNsDn8A:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22 a=GgsMoib0sEa3-_RKJdDe:22 a=gAnH3GRIAAAA:8 a=WE_zQvbRmN3YjbOaRLcA:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjA2MDA5MyBTYWx0ZWRfX5sYnNy0N4ADM vR5qdj/BWSCu+3nughv54yq4m82gdpkd16meFLldrjS+k/j0SfSMNkjhtjif/Fn9v9fqeItYCYi TvKWio7oo3yHcWIeMtK0+2Lis2Ry5e6ptKRAkD65Di3dkZ4YlHJ1yL0mwdqL9o5VIXS7uxennYw s2+k8LKpgT0BKylKEXFjrWWM734WfWoGOZh6X6bcjHhVfueDkSZ4TnKf8UkaWFUctkz1+zlSxpn E7MGAUkY+LvC8WCvvbvdNvZ6y4dI28qMMIVCEGRRhQoLufIWeSN6ixHc8dtR1vTebxstuyD7wFo upEFvJsKAHyD/1G8De7rLjZJLAPccX7xbYVUOnwxlA/lOWHVr9wRI7XjYDMaFCNBPsz/Bfuy9GB q2fE2oVLr3zeEa38R4gIEib1Jw7yEBglTKJSK7TT96IzbclO9WwUjoPEnODYM66/glX4uaU8CD8 9Bz02qcfea6PCAIHUkA== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-06_04,2026-02-05_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 spamscore=0 malwarescore=0 clxscore=1015 phishscore=0 bulkscore=0 adultscore=0 impostorscore=0 suspectscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602060093 Content-Type: text/plain; charset="utf-8" Add support for AD4082 20-bit SAR ADC. The AD4082 has the same resolution as AD4080 (20-bit) but differs in LVDS CNV clock count maximum (8 vs 7). Changes: - Add AD4082_CHIP_ID definition (0x0052) - Create ad4082_channel with 20-bit resolution and 32-bit storage - Add ad4082_chip_info with lvds_cnv_clk_cnt_max =3D 8 - Register AD4082 in device ID and OF match tables Signed-off-by: Antoniu Miclaus Reviewed-by: Andy Shevchenko Reviewed-by: Nuno S=C3=A1 --- drivers/iio/adc/ad4080.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/iio/adc/ad4080.c b/drivers/iio/adc/ad4080.c index 7cf3b6ed7940..7cbbe284dea7 100644 --- a/drivers/iio/adc/ad4080.c +++ b/drivers/iio/adc/ad4080.c @@ -127,6 +127,7 @@ #define AD4080_SPI_READ BIT(7) #define AD4080_CHIP_ID 0x0050 #define AD4081_CHIP_ID 0x0051 +#define AD4082_CHIP_ID 0x0052 #define AD4083_CHIP_ID 0x0053 #define AD4084_CHIP_ID 0x0054 #define AD4086_CHIP_ID 0x0056 @@ -442,6 +443,8 @@ static const struct iio_chan_spec ad4080_channel =3D AD= 4080_CHANNEL_DEFINE(20, 32) =20 static const struct iio_chan_spec ad4081_channel =3D AD4080_CHANNEL_DEFINE= (20, 32); =20 +static const struct iio_chan_spec ad4082_channel =3D AD4080_CHANNEL_DEFINE= (20, 32); + static const struct iio_chan_spec ad4083_channel =3D AD4080_CHANNEL_DEFINE= (16, 16); =20 static const struct iio_chan_spec ad4084_channel =3D AD4080_CHANNEL_DEFINE= (16, 16); @@ -470,6 +473,16 @@ static const struct ad4080_chip_info ad4081_chip_info = =3D { .lvds_cnv_clk_cnt_max =3D 2, }; =20 +static const struct ad4080_chip_info ad4082_chip_info =3D { + .name =3D "ad4082", + .product_id =3D AD4082_CHIP_ID, + .scale_table =3D ad4080_scale_table, + .num_scales =3D ARRAY_SIZE(ad4080_scale_table), + .num_channels =3D 1, + .channels =3D &ad4082_channel, + .lvds_cnv_clk_cnt_max =3D 8, +}; + static const struct ad4080_chip_info ad4083_chip_info =3D { .name =3D "ad4083", .product_id =3D AD4083_CHIP_ID, @@ -666,6 +679,7 @@ static int ad4080_probe(struct spi_device *spi) static const struct spi_device_id ad4080_id[] =3D { { "ad4080", (kernel_ulong_t)&ad4080_chip_info }, { "ad4081", (kernel_ulong_t)&ad4081_chip_info }, + { "ad4082", (kernel_ulong_t)&ad4082_chip_info }, { "ad4083", (kernel_ulong_t)&ad4083_chip_info }, { "ad4084", (kernel_ulong_t)&ad4084_chip_info }, { "ad4086", (kernel_ulong_t)&ad4086_chip_info }, @@ -677,6 +691,7 @@ MODULE_DEVICE_TABLE(spi, ad4080_id); static const struct of_device_id ad4080_of_match[] =3D { { .compatible =3D "adi,ad4080", &ad4080_chip_info }, { .compatible =3D "adi,ad4081", &ad4081_chip_info }, + { .compatible =3D "adi,ad4082", &ad4082_chip_info }, { .compatible =3D "adi,ad4083", &ad4083_chip_info }, { .compatible =3D "adi,ad4084", &ad4084_chip_info }, { .compatible =3D "adi,ad4086", &ad4086_chip_info }, --=20 2.43.0