linux-kernel - [PATCH v3 11/14] dt-bindings: connector: m2: Add M.2 1620 LGA soldered down connector

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Message-Id: <20260110-pci-m2-e-v3-11-4faee7d0d5ae@oss.qualcomm.com>
Date: Sat, 10 Jan 2026 12:26:29 +0530
From: Manivannan Sadhasivam via B4 Relay <devnull+manivannan.sadhasivam.oss.qualcomm.com@...nel.org>
To: Rob Herring <robh@...nel.org>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Jiri Slaby <jirislaby@...nel.org>, Nathan Chancellor <nathan@...nel.org>, 
 Nicolas Schier <nicolas.schier@...ux.dev>, Hans de Goede <hansg@...nel.org>, 
 Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>, 
 Mark Pearson <mpearson-lenovo@...ebb.ca>, 
 "Derek J. Clark" <derekjohn.clark@...il.com>, 
 Manivannan Sadhasivam <mani@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Marcel Holtmann <marcel@...tmann.org>, 
 Luiz Augusto von Dentz <luiz.dentz@...il.com>, 
 Bartosz Golaszewski <brgl@...ev.pl>, 
 Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, 
 Daniel Scally <djrscally@...il.com>, 
 Heikki Krogerus <heikki.krogerus@...ux.intel.com>, 
 Sakari Ailus <sakari.ailus@...ux.intel.com>, 
 "Rafael J. Wysocki" <rafael@...nel.org>, Danilo Krummrich <dakr@...nel.org>, 
 Bartosz Golaszewski <brgl@...nel.org>
Cc: linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-kbuild@...r.kernel.org, platform-driver-x86@...r.kernel.org, 
 linux-pci@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-arm-msm@...r.kernel.org, linux-bluetooth@...r.kernel.org, 
 linux-pm@...r.kernel.org, Stephan Gerhold <stephan.gerhold@...aro.org>, 
 Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>, 
 linux-acpi@...r.kernel.org, 
 Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
Subject: [PATCH v3 11/14] dt-bindings: connector: m2: Add M.2 1620 LGA
 soldered down connector

From: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>

Lenovo Thinkpad T14s is found to have a soldered down version of M.2 1620
LGA connector. Though, there is no 1620 LGA form factor defined in the M.2
spec, it looks very similar to the M.2 Key M connector. So add the
"pcie-m2-1620-lga-connector" compatible with "pcie-m2-e-connector" fallback
to reuse the Key M binding.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
---
 .../devicetree/bindings/connector/pcie-m2-e-connector.yaml       | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/connector/pcie-m2-e-connector.yaml b/Documentation/devicetree/bindings/connector/pcie-m2-e-connector.yaml
index b65b39ddfd19..9757fe92907b 100644
--- a/Documentation/devicetree/bindings/connector/pcie-m2-e-connector.yaml
+++ b/Documentation/devicetree/bindings/connector/pcie-m2-e-connector.yaml
@@ -17,7 +17,14 @@ description:

 properties:
   compatible:
-    const: pcie-m2-e-connector
+    oneOf:
+      - items:
+          - enum:
+              - pcie-m2-1620-lga-connector
+          - const: pcie-m2-e-connector
+      - items:
+          - enum:
+              - pcie-m2-e-connector

   vpcie3v3-supply:
     description: A phandle to the regulator for 3.3v supply.

-- 
2.48.1