linux-kernel - [PATCH v4 1/5] dt-bindings: iio: adc: ti,adc128s052: Add adc08c and adc10c family

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Message-Id: <20250614091504.575685-2-sbellary@baylibre.com>
Date: Sat, 14 Jun 2025 02:15:00 -0700
From: Sukrut Bellary <sbellary@...libre.com>
To: Jonathan Cameron <jic23@...nel.org>,
	David Lechner <dlechner@...libre.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Matti Vaittinen <mazziesaccount@...il.com>,
	Nuno Sá <nuno.sa@...log.com>,
	Andy Shevchenko <andy@...nel.org>,
	Angelo Compagnucci <angelo.compagnucci@...il.com>
Cc: Sukrut Bellary <sbellary@...libre.com>,
	Nishanth Menon <nm@...com>,
	linux-iio@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v4 1/5] dt-bindings: iio: adc: ti,adc128s052: Add adc08c and adc10c family

The adcxx4s communicates with a host processor via an SPI/Microwire Bus
interface. The device family responds with 12-bit data, of which the LSB bits
are 0 for the lower resolution devices. The unavailable bits are 0 in LSB.
Shift is calculated per resolution and used in scaling and raw data read.

I have been able to test adc102s051,
hence adding just the missing ones in that family.

Lets reuse the binding to support the family of devices with name
ADC<bb><c>S<sss>, where
* bb is the resolution in number of bits (8, 10, 12)
* c is the number of channels (1, 2, 4, 8)
* sss is the maximum conversion speed (021 for 200 kSPS, 051 for 500 kSPS
and 101 for 1 MSPS)

Complete datasheets are available at TI's website here:
https://www.ti.com/lit/ds/symlink/adc<bb><c>s<sss>.pdf

Co-developed-by: Nishanth Menon <nm@...com>
Signed-off-by: Nishanth Menon <nm@...com>
Signed-off-by: Sukrut Bellary <sbellary@...libre.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 .../devicetree/bindings/iio/adc/ti,adc128s052.yaml          | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/adc/ti,adc128s052.yaml b/Documentation/devicetree/bindings/iio/adc/ti,adc128s052.yaml
index 775eee972b12..392b4a3e867c 100644
--- a/Documentation/devicetree/bindings/iio/adc/ti,adc128s052.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/ti,adc128s052.yaml
@@ -16,6 +16,12 @@ description: |
 properties:
   compatible:
     enum:
+      - ti,adc082s021
+      - ti,adc082s051
+      - ti,adc082s101
+      - ti,adc102s021
+      - ti,adc102s051
+      - ti,adc102s101
       - ti,adc122s021
       - ti,adc122s051
       - ti,adc122s101
-- 
2.34.1