[PATCH 0/3] ad7380: add adaq4381-4 support

[PATCH 0/3] ad7380: add adaq4381-4 support

[Julien Stephan]

ADAQ4381-4 is the 14 bits version of the ADAQ4380-4. It is compatible
with the ad7380 driver, so add its support and documentation, in driver,
doc, and bindings.

Signed-off-by: Julien Stephan <jstephan@baylibre.com>
---
Julien Stephan (3):
      iio: adc: ad7380: add adaq4381-4 support
      dt-bindings: iio: adc: ad7380: add adaq4381-4 compatible parts
      docs: iio: ad7380: add adaq4381-4

 .../devicetree/bindings/iio/adc/adi,ad7380.yaml         |  4 ++++
 Documentation/iio/ad7380.rst                            |  5 +++--
 drivers/iio/adc/ad7380.c                                | 17 +++++++++++++++++
 3 files changed, 24 insertions(+), 2 deletions(-)
---
base-commit: faeaa1ec6c63b6676679f321601471772f2a0c9b
change-id: 20250226-ad7380-add-adaq4381-4-support-8127fc7abbc6

Best regards,
-- 
Julien Stephan <jstephan@baylibre.com>

[PATCH 1/3] iio: adc: ad7380: add adaq4381-4 support

[Julien Stephan]

adaq4381-4 is the 14 bits version of adaq4380-1 chip. Add support for
it.

Signed-off-by: Julien Stephan <jstephan@baylibre.com>
---
 drivers/iio/adc/ad7380.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/iio/adc/ad7380.c b/drivers/iio/adc/ad7380.c
index f232ad1a49634baeedc655916bc7a967604a1206..407930f1f5dd107154a6c34c6afd4429ebb69826 100644
--- a/drivers/iio/adc/ad7380.c
+++ b/drivers/iio/adc/ad7380.c
@@ -15,6 +15,7 @@
  * ad7386/7/8-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/ad7386-4-7387-4-7388-4.pdf
  * adaq4370-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/adaq4370-4.pdf
  * adaq4380-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/adaq4380-4.pdf
+ * adaq4381-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/adaq4381-4.pdf
  */
 
 #include <linux/align.h>
@@ -287,6 +288,7 @@ DEFINE_AD7380_2_CHANNEL(ad7381_channels, 14, 1, s);
 DEFINE_AD7380_4_CHANNEL(ad7380_4_channels, 16, 1, s);
 DEFINE_AD7380_4_CHANNEL(ad7381_4_channels, 14, 1, s);
 DEFINE_ADAQ4380_4_CHANNEL(adaq4380_4_channels, 16, 1, s);
+DEFINE_ADAQ4380_4_CHANNEL(adaq4381_4_channels, 14, 1, s);
 /* pseudo differential */
 DEFINE_AD7380_2_CHANNEL(ad7383_channels, 16, 0, s);
 DEFINE_AD7380_2_CHANNEL(ad7384_channels, 14, 0, s);
@@ -599,6 +601,19 @@ static const struct ad7380_chip_info adaq4380_4_chip_info = {
 	.timing_specs = &ad7380_4_timing,
 };
 
+static const struct ad7380_chip_info adaq4381_4_chip_info = {
+	.name = "adaq4381-4",
+	.channels = adaq4381_4_channels,
+	.num_channels = ARRAY_SIZE(adaq4381_4_channels),
+	.num_simult_channels = 4,
+	.supplies = adaq4380_supplies,
+	.num_supplies = ARRAY_SIZE(adaq4380_supplies),
+	.adaq_internal_ref_only = true,
+	.has_hardware_gain = true,
+	.available_scan_masks = ad7380_4_channel_scan_masks,
+	.timing_specs = &ad7380_4_timing,
+};
+
 struct ad7380_state {
 	const struct ad7380_chip_info *chip_info;
 	struct spi_device *spi;
@@ -1582,6 +1597,7 @@ static const struct of_device_id ad7380_of_match_table[] = {
 	{ .compatible = "adi,ad7388-4", .data = &ad7388_4_chip_info },
 	{ .compatible = "adi,adaq4370-4", .data = &adaq4370_4_chip_info },
 	{ .compatible = "adi,adaq4380-4", .data = &adaq4380_4_chip_info },
+	{ .compatible = "adi,adaq4381-4", .data = &adaq4381_4_chip_info },
 	{ }
 };
 
@@ -1602,6 +1618,7 @@ static const struct spi_device_id ad7380_id_table[] = {
 	{ "ad7388-4", (kernel_ulong_t)&ad7388_4_chip_info },
 	{ "adaq4370-4", (kernel_ulong_t)&adaq4370_4_chip_info },
 	{ "adaq4380-4", (kernel_ulong_t)&adaq4380_4_chip_info },
+	{ "adaq4381-4", (kernel_ulong_t)&adaq4381_4_chip_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(spi, ad7380_id_table);

-- 
2.47.1

[PATCH 2/3] dt-bindings: iio: adc: ad7380: add adaq4381-4 compatible parts

[Julien Stephan]

adaq4381-4 is the 14 bits version of adaq4380-1 chip. Add support for
it.

Signed-off-by: Julien Stephan <jstephan@baylibre.com>
---
 Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml
index ada08005b3cd1ce7ba13f96484a33fdee0e83a1c..ff4f5c21c5482b77ee2774b01ad6d426e68cf207 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml
@@ -27,6 +27,7 @@ description: |
   * https://www.analog.com/en/products/ad7388-4.html
   * https://www.analog.com/en/products/adaq4370-4.html
   * https://www.analog.com/en/products/adaq4380-4.html
+  * https://www.analog.com/en/products/adaq4381-4.html
 
 
 $ref: /schemas/spi/spi-peripheral-props.yaml#
@@ -50,6 +51,7 @@ properties:
       - adi,ad7388-4
       - adi,adaq4370-4
       - adi,adaq4380-4
+      - adi,adaq4381-4
 
   reg:
     maxItems: 1
@@ -201,6 +203,7 @@ allOf:
             - adi,ad7380-4
             - adi,adaq4370-4
             - adi,adaq4380-4
+            - adi,adaq4381-4
     then:
       properties:
         refio-supply: false
@@ -218,6 +221,7 @@ allOf:
           enum:
             - adi,adaq4370-4
             - adi,adaq4380-4
+            - adi,adaq4381-4
     then:
       required:
         - vs-p-supply

-- 
2.47.1

[PATCH 3/3] docs: iio: ad7380: add adaq4381-4

[Julien Stephan]

adaq4381-4 is the 14 bits version of adaq4380-1 chip. Add it to the
documentation.

Signed-off-by: Julien Stephan <jstephan@baylibre.com>
---
 Documentation/iio/ad7380.rst | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Documentation/iio/ad7380.rst b/Documentation/iio/ad7380.rst
index cff688bcc2d9601a9faf42d5e9c217486639ca66..35232a0e3ad730c19b5201b74280bdb6deaa9667 100644
--- a/Documentation/iio/ad7380.rst
+++ b/Documentation/iio/ad7380.rst
@@ -29,6 +29,7 @@ The following chips are supported by this driver:
 * `AD7388-4 <https://www.analog.com/en/products/ad7388-4.html>`_
 * `ADAQ4370-4 <https://www.analog.com/en/products/adaq4370-4.html>`_
 * `ADAQ4380-4 <https://www.analog.com/en/products/adaq4380-4.html>`_
+* `ADAQ4381-4 <https://www.analog.com/en/products/adaq4381-4.html>`_
 
 
 Supported features
@@ -52,8 +53,8 @@ declared in the device tree as ``refin-supply``.
 ADAQ devices
 ~~~~~~~~~~~~
 
-adaq4370-4 and adaq4380-4 don't have an external reference, but use a 3.3V
-internal reference derived from one of its supplies (``refin-supply``)
+ADAQ devices don't have an external reference, but use a 3.3V internal reference
+derived from one of its supplies (``refin-supply``)
 
 All other devices from ad738x family
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

-- 
2.47.1

Re: [PATCH 0/3] ad7380: add adaq4381-4 support

[David Lechner]

On 2/26/25 8:50 AM, Julien Stephan wrote:
> ADAQ4381-4 is the 14 bits version of the ADAQ4380-4. It is compatible
> with the ad7380 driver, so add its support and documentation, in driver,
> doc, and bindings.
> 
> Signed-off-by: Julien Stephan <jstephan@baylibre.com>
> ---
Reviewed-by: David Lechner <dlechner@baylibre.com>

Re: [PATCH 2/3] dt-bindings: iio: adc: ad7380: add adaq4381-4 compatible parts

[Rob Herring (Arm)]

On Wed, 26 Feb 2025 15:50:04 +0100, Julien Stephan wrote:
> adaq4381-4 is the 14 bits version of adaq4380-1 chip. Add support for
> it.
> 
> Signed-off-by: Julien Stephan <jstephan@baylibre.com>
> ---
>  Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml | 4 ++++
>  1 file changed, 4 insertions(+)
> 

Acked-by: Rob Herring (Arm) <robh@kernel.org>

Re: [PATCH 0/3] ad7380: add adaq4381-4 support

[Jonathan Cameron]

On Wed, 26 Feb 2025 10:14:40 -0600
David Lechner <dlechner@baylibre.com> wrote:

> On 2/26/25 8:50 AM, Julien Stephan wrote:
> > ADAQ4381-4 is the 14 bits version of the ADAQ4380-4. It is compatible
> > with the ad7380 driver, so add its support and documentation, in driver,
> > doc, and bindings.
> > 
> > Signed-off-by: Julien Stephan <jstephan@baylibre.com>
> > ---  
> Reviewed-by: David Lechner <dlechner@baylibre.com>
> 
> 

Applied,

Thanks,

Jonathan