linux-kernel - [PATCH v3] dt-bindings: usb: max33359: add max77759-tcpci flavor

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Message-Id: <20241203-dtbinding-max77759-v3-1-e1a1d86aca8e@linaro.org>
Date: Tue, 03 Dec 2024 12:17:35 +0000
From: André Draszik <andre.draszik@...aro.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Jagan Sridharan <badhri@...gle.com>
Cc: Peter Griffin <peter.griffin@...aro.org>, 
 Tudor Ambarus <tudor.ambarus@...aro.org>, 
 Will McVicker <willmcvicker@...gle.com>, kernel-team@...roid.com, 
 linux-usb@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 André Draszik <andre.draszik@...aro.org>
Subject: [PATCH v3] dt-bindings: usb: max33359: add max77759-tcpci flavor

Maxim's MAX77759 is a companion PMIC for USB Type-C applications. It
comprises the following in one package:
* top (including GPIO)
* charger
* fuel gauge
* TCPCi

While in the same package, TCPCi and Fuel Gauge have separate I2C
addresses, interrupt lines and interrupt status registers and can be
treated independently.

While the TCPCi part appears identical to max33359 on the surface, it
should still have a dedicated compatible, though, as it is a different
implementation. This will allow for handling differences in case they
are discovered in the future.

max77759 is used on Google Pixel 6 and Pixel 6 Pro.

Add a dedicated compatible, maxim,max77759-tcpci, to allow for
potential differences in the future.

Signed-off-by: André Draszik <andre.draszik@...aro.org>
---
Changes in v3:
- change compatible from maxim,max77759 to maxim,max77759-tcpci - the
  former should be reserved for a top-level MFD device for the
  remaining components
- drop Acked-by tags due to compatible change
- Link to v2: https://lore.kernel.org/r/20241128-dtbinding-max77759-v1-1-733ce24c0802@linaro.org

Changes in v2:
- collect tags
- split out from original series (Krzysztof)
- link to original series:
  https://lore.kernel.org/all/20241127-gs101-phy-lanes-orientation-dts-v1-2-5222d8508b71@linaro.org/
---
 Documentation/devicetree/bindings/usb/maxim,max33359.yaml | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/maxim,max33359.yaml b/Documentation/devicetree/bindings/usb/maxim,max33359.yaml
index 20b62228371b..a31e00e6b967 100644
--- a/Documentation/devicetree/bindings/usb/maxim,max33359.yaml
+++ b/Documentation/devicetree/bindings/usb/maxim,max33359.yaml
@@ -13,8 +13,12 @@ description: Maxim TCPCI Type-C PD controller
 
 properties:
   compatible:
-    enum:
-      - maxim,max33359
+    oneOf:
+      - enum:
+          - maxim,max33359
+      - items:
+          - const: maxim,max77759-tcpci
+          - const: maxim,max33359
 
   reg:
     maxItems: 1

---
base-commit: ed9a4ad6e5bd3a443e81446476718abebee47e82
change-id: 20241128-dtbinding-max77759-b3ddbd264544

Best regards,
-- 
André Draszik <andre.draszik@...aro.org>