From patchwork Fri Jul 7 06:53:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Patel, Utkarsh H" X-Patchwork-Id: 13304481 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5FC64EB64D9 for ; Fri, 7 Jul 2023 06:52:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229580AbjGGGwB (ORCPT ); Fri, 7 Jul 2023 02:52:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44594 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231280AbjGGGv6 (ORCPT ); Fri, 7 Jul 2023 02:51:58 -0400 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CB1161FE4; Thu, 6 Jul 2023 23:51:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1688712715; x=1720248715; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ayO+jeRCG7JzuDV4hkaToHHdQ4NayqOy1kTKwggV0GQ=; b=aBWW5dYdJ7L3iYnr8/4RvuK9IYCQgYaWwnu+dlsGkYOtmlnHqJHh4FuJ aAtVWGIsZMOb2xR9e2JGa9EhrJr3oCBrbKI/o7kAGgLt0F8srl0woCD7C B5T37jfq/Nt22c1B5YQZ4MgZ3fFhaCrVWIeof8OnNTekeCldihaQaOEAY FKHlLXtoXXCweuEIJUqlJlbZFMT+bZQ931Po6VSH58gbQTuSGQ78fWcku PvFU/D/SjRsr/+huz1rlk6Yio280PJx98sRy/7Y9GwXEKZiH0sbL2nJwx 2EhKNypAzeTpF5aKzgUHcxWKSx4qIF4jFxrjSqBzgaGaqksVjz7lt0xRA Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10763"; a="394586943" X-IronPort-AV: E=Sophos;i="6.01,187,1684825200"; d="scan'208";a="394586943" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jul 2023 23:51:43 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10763"; a="749436228" X-IronPort-AV: E=Sophos;i="6.01,187,1684825200"; d="scan'208";a="749436228" Received: from uhpatel-desk4.jf.intel.com ([10.23.15.157]) by orsmga008.jf.intel.com with ESMTP; 06 Jul 2023 23:51:42 -0700 From: Utkarsh Patel To: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, heikki.krogerus@linux.intel.com, pmalani@chromium.org, bleung@chromium.org Cc: Utkarsh Patel Subject: [PATCH v3 1/2] platform/chrome: cros_ec_typec: Configure Retimer cable type Date: Thu, 6 Jul 2023 23:53:17 -0700 Message-Id: <20230707065318.18681-2-utkarsh.h.patel@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230707065318.18681-1-utkarsh.h.patel@intel.com> References: <20230707065318.18681-1-utkarsh.h.patel@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Connector class driver only configure cable type active or passive. Configure if the cable type is retimer or redriver with this change. This detail will be provided as a part of cable discover mode VDO. Signed-off-by: Utkarsh Patel --- Changes in v2: - Implemented use of cable discover mode vdo. - Removed adittional changes to host command. Changes in v3: - Changed the return method in cros_typec_get_cable_vdo. - Changed passed parameters in cros_typec_get_cable_vdo. - Corrected definition for unsigned integers as kerenl standard. - Assigning cable_vdo values directly in to cable_mode. - Removed unncessary checks for Retimer cable type. --- --- drivers/platform/chrome/cros_ec_typec.c | 26 ++++++++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-) diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c index 25f9767c28e8..0ea085fec55a 100644 --- a/drivers/platform/chrome/cros_ec_typec.c +++ b/drivers/platform/chrome/cros_ec_typec.c @@ -406,6 +406,20 @@ static int cros_typec_usb_safe_state(struct cros_typec_port *port) return ret; } +static int cros_typec_get_cable_vdo(struct cros_typec_port *port, u16 svid) +{ + struct list_head *head = &port->plug_mode_list; + struct cros_typec_altmode_node *node; + int ret = 0; + + list_for_each_entry(node, head, list) { + if (node->amode->svid == svid) + return node->amode->vdo; + } + + return ret; +} + /* * Spoof the VDOs that were likely communicated by the partner for TBT alt * mode. @@ -416,6 +430,7 @@ static int cros_typec_enable_tbt(struct cros_typec_data *typec, { struct cros_typec_port *port = typec->ports[port_num]; struct typec_thunderbolt_data data; + u32 cable_vdo; int ret; if (typec->pd_ctrl_ver < 2) { @@ -432,6 +447,10 @@ static int cros_typec_enable_tbt(struct cros_typec_data *typec, /* Cable Discover Mode VDO */ data.cable_mode = TBT_MODE; + + cable_vdo = cros_typec_get_cable_vdo(port, USB_TYPEC_TBT_SID); + data.cable_mode |= cable_vdo; + data.cable_mode |= TBT_SET_CABLE_SPEED(pd_ctrl->cable_speed); if (pd_ctrl->control_flags & USB_PD_CTRL_OPTICAL_CABLE) @@ -513,17 +532,22 @@ static int cros_typec_enable_usb4(struct cros_typec_data *typec, { struct cros_typec_port *port = typec->ports[port_num]; struct enter_usb_data data; + u32 cable_vdo; data.eudo = EUDO_USB_MODE_USB4 << EUDO_USB_MODE_SHIFT; + cable_vdo = cros_typec_get_cable_vdo(port, USB_TYPEC_TBT_SID); + /* Cable Speed */ data.eudo |= pd_ctrl->cable_speed << EUDO_CABLE_SPEED_SHIFT; /* Cable Type */ if (pd_ctrl->control_flags & USB_PD_CTRL_OPTICAL_CABLE) data.eudo |= EUDO_CABLE_TYPE_OPTICAL << EUDO_CABLE_TYPE_SHIFT; - else if (pd_ctrl->control_flags & USB_PD_CTRL_ACTIVE_CABLE) + else if (cable_vdo & TBT_CABLE_RETIMER) data.eudo |= EUDO_CABLE_TYPE_RE_TIMER << EUDO_CABLE_TYPE_SHIFT; + else if (pd_ctrl->control_flags & USB_PD_CTRL_ACTIVE_CABLE) + data.eudo |= EUDO_CABLE_TYPE_RE_DRIVER << EUDO_CABLE_TYPE_SHIFT; data.active_link_training = !!(pd_ctrl->control_flags & USB_PD_CTRL_ACTIVE_LINK_UNIDIR);