linux-kernel - [PATCH v2 1/2] dt-bindings: hwmon: ti,ina2xx: Add INA233 device

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Message-Id: <20250110081546.61667-2-Leo-Yang@quantatw.com>
Date: Fri, 10 Jan 2025 16:15:45 +0800
From: Leo Yang <leo.yang.sy0@...il.com>
To: jdelvare@...e.com,
	linux@...ck-us.net,
	robh@...nel.org,
	davem@...emloft.net,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	Leo-Yang@...ntatw.com,
	corbet@....net,
	Delphine_CC_Chiu@...ynn.com,
	linux-hwmon@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org
Subject: [PATCH v2 1/2] dt-bindings: hwmon: ti,ina2xx: Add INA233 device

Add TI INA233 Current and Power Monitor bindings.

Signed-off-by: Leo Yang <Leo-Yang@...ntatw.com>
---
 .../devicetree/bindings/hwmon/ti,ina2xx.yaml    | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml b/Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml
index 05a9cb36cd82..9759c69b904b 100644
--- a/Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml
+++ b/Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml
@@ -27,6 +27,7 @@ properties:
       - ti,ina226
       - ti,ina230
       - ti,ina231
+      - ti,ina233
       - ti,ina237
       - ti,ina238
       - ti,ina260
@@ -75,6 +76,22 @@ properties:
       the alert polarity to active-high.
     $ref: /schemas/types.yaml#/definitions/flag
 
+  ti,current-lsb:
+    description:
+      This value depends on the maximum current that can be expected to be
+      measured by ina233 in your circuit, divide Maximum Expected Current
+      by 2^15 and express it in microamps.
+
+      This value will be used to calculate the current/power coefficient for
+      the pmbus and to calibrate the IC.
+
+      For device INA233.
+
+      e.g. Calculate the Maximum Expected Current(A) / 2^15 in micro ampere (uA).
+      30A / 2^15 = 915 uA
+      If value is close to 1000 uA, can use 1000 uA to minimize rounding errors.
+    $ref: /schemas/types.yaml#/definitions/uint16
+
 required:
   - compatible
   - reg
-- 
2.39.2