From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dl1-f73.google.com (mail-dl1-f73.google.com [74.125.82.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4FC2331B810 for ; Fri, 3 Apr 2026 22:34:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.73 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775255659; cv=none; b=CWkkPLv5fyqxV2412umeoS1WpDOlmiwlMxJAh5nM6yFFKMXlk9LbY2MNWwH61MggM5CUcEQPWvS3+9Wrm9/XtiBi76rZjXAz+0ckZDWeOK7B3OTDFArDgTNTeEsKisYd/zdE4di5G0V8NEF0fLSh87ICl9Z6jrXrKfosVBpm+5Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775255659; c=relaxed/simple; bh=/mbVbHwfU1OPBxftQbuqd+p4EqiF4kncyA8GPaZAnDY=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=p/5NITcjUkZkkBX9IYARTJJeq20V1EqWvVOeVmQpmGkaFpSXaZ/ZehJfajFcsxPfFYWQDKtgkXVsNS2tCBPR7IQPU1VnAKxBhYG4yY0KtsybprV0r4lMQ7KBXnFXVx7umH9B2HwHcPDZyMq0T4H2LhaSSq+pqfgij/jUrfqY2IQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--jthies.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=bcf4gW2Y; arc=none smtp.client-ip=74.125.82.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--jthies.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="bcf4gW2Y" Received: by mail-dl1-f73.google.com with SMTP id a92af1059eb24-128ba70cc99so2435279c88.0 for ; Fri, 03 Apr 2026 15:34:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1775255657; x=1775860457; darn=vger.kernel.org; h=content-transfer-encoding:cc:to:from:subject:message-id:references :mime-version:in-reply-to:date:from:to:cc:subject:date:message-id :reply-to; bh=UrqOiGLmU/TqfB7pUyMSAKDJK17fNSdE4/EVerFbIPk=; b=bcf4gW2YzKjTFTFi3Js576rXSU2aZmnzntcXv59oJVJayLzLe2KorOzEztV8W1KmG+ 9YxTQ4/fENlJJpE22L2QGSwnbLMKebP122W4dJ2UnTUT3Y/NJrjlU7U8LvLlYOMQz0u3 6CBkW2DS3Xd6A7zI4P5xBmTVNgXb8w+MrhisZ/ZcmaAS5Perhh/hDP9RM9TlS5JOor3B UtJKmzDEnPpNBlHHy0JDJYXS12dQ7sAs6eMCjmqau+nxLdmSaz4AguUnZMjC4eZT/Pqt sdj2JIqGoN8Qbf0n1JPDq51xHqBZCyUL1smpAZMiCeB75Nd4HkOKLkI6oq5z6Q1pNZBs lFfQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1775255657; x=1775860457; h=content-transfer-encoding:cc:to:from:subject:message-id:references :mime-version:in-reply-to:date:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to; bh=UrqOiGLmU/TqfB7pUyMSAKDJK17fNSdE4/EVerFbIPk=; b=U23Z6Y5gy4LTZewu5FZpITw8f8YJUoV+d97bm8XpYYNkThkmZyjmhfdWoeQwhgAelp 7VQhhgbBm1QIROLVlVyOOxxxOmQ29FZZg0c4nFra+M2qdyX6AmcbQIVk6sVdL2hR/YN/ uZFIjpQ9MdNs3rg8Rb6XvE99GPqvyQvXae2ibFNaOXC+7Kq/ySdgHHMtqsgkWYJzLw8D rIYkW1JcDLa6zZHHmXDpFFuKqn8m9js9NyMLifWEMZyslj2OyyMhybG/MkAMkKHqT2zf MwK9KH6xZuJ7cbjf8S0cEE6F08RQ57DDLVvCDz0fydZb0q0XccZRR2EDXQUSgGsWsQvW UtxQ== X-Forwarded-Encrypted: i=1; AJvYcCV5FMU5VnOhUQGVboyA+8l+F847OxFkHkPkCttYH1GcRwNikowoDu2Amf1cWMD1MTiDZ7viCLRBD9l3@vger.kernel.org X-Gm-Message-State: AOJu0YyBRZqJji2ufsWmgrAuV6olVUPAdE+laPK2J3WZqknwQHmbv7Nj BMAW3gPS3C5vYn/totnh5n6c28OD6m9MFzTH5+sfI8zTYz1Uu55aJU4F/gmtOX7wmnwQIFAB6gG Nmnag1A== X-Received: from dlae26.prod.google.com ([2002:a05:701b:231a:b0:12a:6b88:b9c5]) (user=jthies job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7022:43a8:b0:11b:9b98:aa4b with SMTP id a92af1059eb24-12bfb6ec461mr2298676c88.6.1775255657105; Fri, 03 Apr 2026 15:34:17 -0700 (PDT) Date: Fri, 3 Apr 2026 22:33:26 +0000 In-Reply-To: <20260403223357.1896403-1-jthies@google.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260403223357.1896403-1-jthies@google.com> X-Mailer: git-send-email 2.53.0.1213.gd9a14994de-goog Message-ID: <20260403223357.1896403-2-jthies@google.com> Subject: [PATCH v1 1/2] dt-bindings: chrome: Add cros-ec-ucsi compatibility to typec binding From: Jameson Thies To: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, abhishekpandit@chromium.org, bleung@chromium.org, heikki.krogerus@linux.intel.com, akuchynski@chromium.org Cc: gregkh@linuxfoundation.org, devicetree@vger.kernel.org, chrome-platform@lists.linux.dev, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Jameson Thies Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Chrome OS devices with discrete power delivery controllers (PDCs) allow the host to read port status and control port behavior through a USB Type-C Connector System Software (UCSI) interface with the embedded controller (EC). This uses a separate interface driver than other Chrome OS devices with a Type-C port manager in the EC FW. Those use a host command interface supported by cros-ec-typec. Add a cros-ec-ucsi compatibility string to the existing cros-ec-typec binding. Additionally, update maintainer list to reflect cros-ec-ucsi and cros-ec-typec driver maintainers. Signed-off-by: Jameson Thies --- .../bindings/chrome/google,cros-ec-typec.yaml | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.= yaml b/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml index 9f9816fbecbc..fd1a459879bd 100644 --- a/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml +++ b/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml @@ -8,17 +8,28 @@ title: Google Chrome OS EC(Embedded Controller) Type C po= rt driver. =20 maintainers: - Benson Leung - - Prashant Malani + - Abhishek Pandit-Subedi + - Andrei Kuchynski + - =C5=81ukasz Bartosik + - Jameson Thies =20 description: Chrome OS devices have an Embedded Controller(EC) which has access to Type C port state. This node is intended to allow the host to read and - control the Type C ports. The node for this device should be under a - cros-ec node like google,cros-ec-spi. + control the Type C ports. This binding is compatible with both the + cros-ec-typec and cros-ec-ucsi drivers. The cros-ec-typec driver + supports the host command interface used by the Chrome OS EC with a + built-in Type-C port manager and external Type-C Port Controller + (TCPC). The cros-ec-ucsi driver supports the USB Type-C Connector + System Software (UCSI) interface used by the Chrome OS EC when the + platform has a separate power delivery controller (PDC). The node for + this device should be under a cros-ec node like google,cros-ec-spi. =20 properties: compatible: - const: google,cros-ec-typec + enum: + - google,cros-ec-typec + - google,cros-ec-ucsi =20 '#address-cells': const: 1 --=20 2.53.0.1213.gd9a14994de-goog