linux-kernel - [PATCH v2 1/2] dt-bindings: iio: adc: ti,adc128s052: Add adc08c and adc10c family

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Date:   Sat, 21 Oct 2023 20:12:02 -0700
From:   Sukrut Bellary <sukrut.bellary@...ux.com>
To:     Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Angelo Compagnucci <angelo.compagnucci@...il.com>,
        Nishanth Menon <nm@...com>
Cc:     Sukrut Bellary <sukrut.bellary@...ux.com>,
        linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v2 1/2] 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/gpn/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 <sukrut.bellary@...ux.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
Changes in v2: 
        - No changes in dt-bindings
- Link to v1: https://lore.kernel.org/all/20220701042919.18180-2-nm@ti.com/
---
 .../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