From patchwork Mon Mar 25 23:37:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavan Holla X-Patchwork-Id: 13603169 Received: from mail-pl1-f177.google.com (mail-pl1-f177.google.com [209.85.214.177]) (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 A4B05839FC for ; Mon, 25 Mar 2024 23:37:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.177 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711409853; cv=none; b=o7yebLLNxoURhHl8+ljGrIIvk+nKhUasNuf9g1Ni3G2MCLLxvUDHV5zOv8dNXQNzIojekRTMzmLo/NvUBRWAx4Y58c1RernG12aoWY+bw0h4segkgeGpQ8+wc10UTiuu9jf6bFUnm72sAa0v2wManZMJUa9EQ7AeylnWvQ5vSGw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711409853; c=relaxed/simple; bh=6dujFpkqDKPBuiO2UpfalqIfg9Gg4/76KHGhMZb6TLY=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=C9nDOncjSS99wQzBgc17cmULiIm/cRtBBIZ2Re7SCUVS7o230OHaz3C7CqmmLTjeNMw9XB1Uz5jExLatZHsMald07AaKxFF1lXEkpgmpeVqlsx7P7wzvnmAMzmxwPIIxwPIwzhsoBlhr5CukbGz7i64l3muOMtuW5izFELmP5Gc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org; spf=pass smtp.mailfrom=chromium.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b=ERiG5aI9; arc=none smtp.client-ip=209.85.214.177 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chromium.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="ERiG5aI9" Received: by mail-pl1-f177.google.com with SMTP id d9443c01a7336-1dddbe47ac1so37234145ad.1 for ; Mon, 25 Mar 2024 16:37:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1711409850; x=1712014650; darn=vger.kernel.org; h=cc:to:content-transfer-encoding:mime-version:message-id:date :subject:from:from:to:cc:subject:date:message-id:reply-to; bh=t++oNQEO7IJZ94laUh866kNX+AuB2HTUTSh3SaujONM=; b=ERiG5aI9zJCMQ7dU2SpQGjEOPkh8ggT5du8gao09wjHeSz7hRKOhYhQ93xCN0PcIGJ Np7LURSwwyrnzZyhOm7+gZI0NWDC5+yj0/S/B55b+Qyf9pscEYSrUG8uwZjhUqZCQ/3S VzdPX0EHzzsmPlYLb5qcDo6ePo7IOr9t3fgw8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711409850; x=1712014650; h=cc:to:content-transfer-encoding:mime-version:message-id:date :subject:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=t++oNQEO7IJZ94laUh866kNX+AuB2HTUTSh3SaujONM=; b=GtTg+u3Zz6yDOISF/2lETIbKuOxl6pWPqSXC9xGVeTt5RgZqFZTmhZ/E7R5bjf/FHF sg3g2Tw6iIhDyRDEpR/Ps/6pnPjZ5n8yd5EN2PW4ygVd1olU/HfP/RyeWLpt58ieT8IV yQwO+Ouj81emT+ztx/W1UiAraxDaDj/mJ2Afcj3/mKbWGQQ7vbKHhJA6D29ycXuRgGsa Mkz9pSoi7yFFTozJ2f3ny3l1jk911jUSn6kwnbaRdxhFpeVNACMZ8UCFMiGd3oU4cNUf DxIbVO7GW3TreKMsE+ZodaMIVqRD96oELF1xJdgVXTRbIfyZOoSYIbIdNEkiCD857pPj QoRg== X-Forwarded-Encrypted: i=1; AJvYcCWP3HT5n6yisOyos9ja+bZ4mTKKqawdJNwl4DWKtHo48O3NlCXsd5ANvSsk8p3UnxW6U2qAdmzr+ECdZvWqsz4AxO+G0DKl9EeZ X-Gm-Message-State: AOJu0YyLOepXr6Gy34JrUafuT5cPc8Gd4xtWzjsRsMeifQov6AR/+jit w+UCSIpSPdYOKRXGxt6c2lyuZ5Tp5WilXbmHm+gi2jePDBEHYjKr+98cWq6Nsw== X-Google-Smtp-Source: AGHT+IHcBEPkzWr0QfcSeXpZkg/3A5L6PkziF30F3effJxL0tfk7Lkx8vo47sJxq0qfXhXF98wJfPQ== X-Received: by 2002:a17:902:bb84:b0:1e0:cd89:7539 with SMTP id m4-20020a170902bb8400b001e0cd897539mr2648395pls.13.1711409850342; Mon, 25 Mar 2024 16:37:30 -0700 (PDT) Received: from pholla1.c.googlers.com (210.73.125.34.bc.googleusercontent.com. [34.125.73.210]) by smtp.gmail.com with ESMTPSA id c14-20020a170903234e00b001e0e2fde71fsm526533plh.9.2024.03.25.16.37.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 16:37:30 -0700 (PDT) From: Pavan Holla Subject: [PATCH 0/3] usb: typec: Implement UCSI driver for ChromeOS Date: Mon, 25 Mar 2024 23:37:27 +0000 Message-Id: <20240325-public-ucsi-h-v1-0-7c7e888edc0a@chromium.org> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIALcKAmYC/x3MMQqAMAxA0atIZgO1WhGvIg4aow1IlQZFkN7d4 viG/19QjsIKffFC5FtUjpBRlQWQn8LGKEs2WGMbU1uH5zXvQniRCnqsmZibyrST6yA3Z+RVnv8 3jCl99gMghV8AAAA= To: Greg Kroah-Hartman , Heikki Krogerus Cc: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, Abhishek Pandit-Subedi , Pavan Holla X-Mailer: b4 0.12.4 We are developing a UCSI ChromeOS EC transport driver. The ChromeOS EC implements a UCSI PPM. This driver is being developed in drivers/platform/chrome since 1) Most other drivers which depend on ChromeOS EC reside there. 2) Our architecture might undergo a few revisions rapidly, so platform/chrome seems like a good place while we finalize our design. This patch series creates a public include/usb/ucsi.h that can be used by transport drivers outside drivers/usb/typec/ucsi. Then, we use this interface and ChromeOS EC host commands to send UCSI commands in drivers/platform/chrome/cros_ec_ucsi.c. Signed-off-by: Pavan Holla --- Pavan Holla (3): usb: typec: ucsi: Provide interface for UCSI transport usb: typec: ucsi: Import interface for UCSI transport platform/chrome: cros_ec_ucsi: Implement UCSI PDC driver MAINTAINERS | 1 + drivers/platform/chrome/Kconfig | 14 ++ drivers/platform/chrome/Makefile | 1 + drivers/platform/chrome/cros_ec_ucsi.c | 247 +++++++++++++++++++++++++ drivers/usb/typec/ucsi/ucsi.h | 54 +----- include/linux/platform_data/cros_ec_commands.h | 19 ++ include/linux/usb/ucsi.h | 66 +++++++ 7 files changed, 349 insertions(+), 53 deletions(-) --- base-commit: 4cece764965020c22cff7665b18a012006359095 change-id: 20240325-public-ucsi-h-3ecee4106a58 Best regards,