From patchwork Thu Dec 7 09:07:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: RD Babiera X-Patchwork-Id: 752475 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="Mfwl3d2c" Received: from mail-yw1-x1149.google.com (mail-yw1-x1149.google.com [IPv6:2607:f8b0:4864:20::1149]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 89D7519A for ; Thu, 7 Dec 2023 01:07:58 -0800 (PST) Received: by mail-yw1-x1149.google.com with SMTP id 00721157ae682-5caf86963ecso6691117b3.3 for ; Thu, 07 Dec 2023 01:07:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1701940078; x=1702544878; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=XjhlNxQ1wUWjraV9iPdtTW5x0sxYSEYMRYfsr8frK4s=; b=Mfwl3d2cct8WsfUmHxw1TmsL20ljontGrnhB3u26hTnSXuPR6Abj3vIU1LU+OBhDp+ lA/Xu5ZpbFI059Mc9jEWWKsOdGh7KX+YEcibudP5t/wWYcxJg74PmWgmYXfTkaiYbqkZ ShKAxP7iHySG+1/rTEl+Up/KT8WaTuphEqjf4yLBLKydbwpU6/8Z+28TTDP3blsw7dYL KRq3hheeHhGCtvj0PipL8YsJRV/Iq/PeB8uAM43u/QGuunxcAgyJOtDsh9lashHRsDak Eg1pg4ovJA87TzB7hs8LYJRnsI87A0pIkB+CJ5z3KnlmNBzwBXphXjLELSL4WbXxDu+R Eazg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701940078; x=1702544878; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=XjhlNxQ1wUWjraV9iPdtTW5x0sxYSEYMRYfsr8frK4s=; b=rN1C3vfaJsVLdBS39/XAyyLtRpx1XDnNcvrO3PbDwRSFWs+WJOXHAGnngS6pZ2yAQS EyECjT5ZnAEfctrXXPfQteKs7mCd3jf0GXPTHFxmNIBrtrv7Z+/Hw6Ctngh9wNZubWDr Y0R/B4CPOuBSVSs25pjPeKJ2vWJHvpfEkz4gm9wC+cC8fk2SvWeBGIq8o7AWxO7j8ywC n4hWi6JOSP9kTaOyFf4WmkT+0YUg/kDfde7dC1OT8jMCdm5nOT8EIXW6Q4HM4wCKDrFz knCaNPNN95RveU/B678QkW25iDKPODjvpk5CDn4CT147W2ZOFAPHIGxJ8OrA2kgn18IY eJDw== X-Gm-Message-State: AOJu0Ywe8wid5g8x040Gw3V1O5ncjzpSHZ8eZxmC210CU8oBT507QsXg q055rLkhTlfk/v8Bfz12UW4b4VxPx6llLlA= X-Google-Smtp-Source: AGHT+IGBamj/zy/n72vCz2neXuhEsyt1AsF7cIaDJq4VKFEX0D9upq9VMWa9ajffy7iqLfGYkj134Vm8PyEiiG4= X-Received: from rdbabiera.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:18a8]) (user=rdbabiera job=sendgmr) by 2002:a81:b627:0:b0:5d4:1b2d:f43f with SMTP id u39-20020a81b627000000b005d41b2df43fmr36440ywh.6.1701940077775; Thu, 07 Dec 2023 01:07:57 -0800 (PST) Date: Thu, 7 Dec 2023 09:07:31 +0000 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Developer-Key: i=rdbabiera@google.com; a=openpgp; fpr=639A331F1A21D691815CE090416E17CA2BBBD5C8 X-Developer-Signature: v=1; a=openpgp-sha256; l=2548; i=rdbabiera@google.com; h=from:subject; bh=YbXxf5+Kewbv+6BZn0oI5JwVjybhzPVx1ZrpByB9dhg=; b=owGbwMvMwCFW0bfok0KS4TbG02pJDKmF3VHOP479Nok3jTry+eq8B7fV1AQ+LJzDe8MuRqZLv OR2tqBhRwkLgxgHg6yYIouuf57BjSupW+Zw1hjDzGFlAhnCwMUpABOxU2L4KnHlzXk35rsubaGd AX/XfOzPeRpSc36W3Q9Nqwerf9SUMPz3efamRew2302Vq+q+sntkDROebX81g4etmskysqZa/yA vAA== X-Mailer: git-send-email 2.43.0.rc2.451.g8631bc7472-goog Message-ID: <20231207090738.15721-12-rdbabiera@google.com> Subject: [PATCH v1 00/10] usb: typec: add SOP' support to the tcpm and alt mode drivers From: RD Babiera To: heikki.krogerus@linux.intel.com, linux@roeck-us.net, gregkh@linuxfoundation.org, pmalani@chromium.org, bleung@chromium.org, chrome-platform@lists.linux.dev, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Cc: badhri@google.com, tzungbi@kernel.org, utkarsh.h.patel@intel.com, andriy.shevchenko@linux.intel.com, RD Babiera Extend the TCPM's functionality to include support for SOP' messages. This feature is opt-in: TCPCI chip drivers opt into sending and receiving SOP' messages. TCPCI drivers will also be expected to take the SOP frame type in order to process SOP' messages within the TCPM. The Maxim TCPCI driver implements this in Patch 2. Discover Identity, Discover SVIDs, Discover Modes, and Alt Mode SVDM support are included within the patchset. Because the port is expected to be the Vconn source in order to communicate with the cable, TCPCI chip drivers opt into performing a Vconn swap after Discover Identity on SOP before performing Discover Identity on SOP'. Alt Mode drivers can direct SVDMs towards the port partner or cable plug. DisplayPort Alt Mode adds support for Enter Mode, Configure, and Exit Mode commands over SOP' in Patch 10. RD Babiera (10): usb: typec: bus: provide transmit type for alternate mode drivers usb: typec: tcpci: enable reception of SOP' messages usb: typec: tcpm: process receive and transmission of sop' messages usb: typec: tcpm: add control message support for SOP' usb: typec: tcpci: add attempt_vconn_swap_discovery callback usb: typec: tcpm: add discover identity support for SOP' usb: typec: tcpm: add state machine support for SRC_VDM_IDENTITY_REQUEST usb: typec: tcpm: add mode data message support for SOP' usb: typec: altmodes: add typec_altmode_get_cable_svdm_version usb: typec: altmodes/displayport: add SOP' support drivers/platform/chrome/cros_typec_vdm.c | 12 +- drivers/usb/typec/altmodes/displayport.c | 175 +++- drivers/usb/typec/bus.c | 17 +- drivers/usb/typec/class.c | 42 +- drivers/usb/typec/class.h | 1 + drivers/usb/typec/tcpm/tcpci.c | 26 +- drivers/usb/typec/tcpm/tcpci_maxim.h | 1 + drivers/usb/typec/tcpm/tcpci_maxim_core.c | 37 +- drivers/usb/typec/tcpm/tcpm.c | 1014 ++++++++++++++++++--- drivers/usb/typec/ucsi/displayport.c | 18 +- include/linux/usb/pd.h | 1 + include/linux/usb/pd_vdo.h | 8 +- include/linux/usb/tcpci.h | 13 + include/linux/usb/tcpm.h | 16 +- include/linux/usb/typec.h | 3 + include/linux/usb/typec_altmode.h | 36 +- 16 files changed, 1214 insertions(+), 206 deletions(-) base-commit: 5e4c8814a431d21bfaf20b464134f40f2f81e152