From patchwork Sun May 23 01:58:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kyle Tso X-Patchwork-Id: 12274725 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-26.2 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 04083C4707F for ; Sun, 23 May 2021 01:59:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CF973610A6 for ; Sun, 23 May 2021 01:59:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231557AbhEWCAt (ORCPT ); Sat, 22 May 2021 22:00:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58830 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231535AbhEWCAs (ORCPT ); Sat, 22 May 2021 22:00:48 -0400 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CB643C061574 for ; Sat, 22 May 2021 18:59:21 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id d4-20020a25b5c40000b02904f8e3c8c6c9so32570444ybg.14 for ; Sat, 22 May 2021 18:59:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=gkWNx3S/znXnFPP4/eFUa9xGYND+Yzn0YLWMUN4rin4=; b=XmNR1oNwpLPgAHzOAAo02cz7u5cijaSx9dTvju3lXizzfMkm4CexfVNlv/aGe+fpuP phxKdbSpzBpJQkpMVopqlmoIAOAdVRDYXzy2tDha6uEXwRA2c8numOEGMc1fqY9j40Y+ kihq4TdNoyKFdSFBCj13UWSs2Vdj5XvOU8I2PyyOvNT1Zl1ueeKJMhDhvNo2k+XwGuP3 FzgEooWZ5ptq4yG8Kdr389P6UPmFusQKU2uStINb19uHgQRQ8X7mhmaRDO6vjRndwjOr qoFuN//U9N+NCbgrGUKLQmaoBoH2WjsB3W8OWHIodvHwnxcj8NaUejHzEUuoxRaWKNsG OvFQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=gkWNx3S/znXnFPP4/eFUa9xGYND+Yzn0YLWMUN4rin4=; b=QgoCwcYNe23ISUXYf86FxuMLSpS2WS+eYf4dNk0OsyrsjmmybGBpO4mXKl2wEZKKEU HLH2LIGa3T0RfdBms7FxRM5KkJLL6Mb+z/iguHa3R+O4Tb1X/NE3nhHtawUBRhMw10YT InlhID5+OuQYnoT12PCAGkxnar3FyHloeoVjA+yILu2YpPT9QC+52hnYjewBy4f/DGfA tjhqfapU0H14Vdhj3Nen+URTyM+wqwMj6UEr3z/WjWH7E9PUPFRPcdlKJvIRrAH0HwDm eSI2nT+XX64wDgoGV/pJqZzTN+Soqg5XrzKkVhvPIci2MvdkJa5L+b4Z6S2qnLmQcaz9 vfJA== X-Gm-Message-State: AOAM533sSagojbPucxlic44IlfWZ8KDL39yVHefgyFkboRFNHUqmFNQj iICLV4YanI1pskIib6KlRN0z1/ipDBDK X-Google-Smtp-Source: ABdhPJzR9vwJk2YI3Pa6qXychCllbgv5fNDt04WmzXsutUTwFdMEhv3NegqY5eP0JqA+mm+p4MN65jxnM/H1 X-Received: from kyletso.ntc.corp.google.com ([2401:fa00:fc:202:7015:3f20:3a0c:ecc2]) (user=kyletso job=sendgmr) by 2002:a05:6902:728:: with SMTP id l8mr25617336ybt.326.1621735160992; Sat, 22 May 2021 18:59:20 -0700 (PDT) Date: Sun, 23 May 2021 09:58:55 +0800 In-Reply-To: <20210523015855.1785484-1-kyletso@google.com> Message-Id: <20210523015855.1785484-3-kyletso@google.com> Mime-Version: 1.0 References: <20210523015855.1785484-1-kyletso@google.com> X-Mailer: git-send-email 2.31.1.818.g46aad6cb9e-goog Subject: [PATCH v2 2/2] usb: typec: tcpm: Respond Not_Supported if no snk_vdo From: Kyle Tso To: linux@roeck-us.net, heikki.krogerus@linux.intel.com, gregkh@linuxfoundation.org Cc: badhri@google.com, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, lkp@intel.com, Kyle Tso Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org If snk_vdo is not populated from fwnode, it implies the port does not support responding to SVDM commands. Not_Supported Message shall be sent if the contract is in PD3. And for PD2, the port shall ignore the commands. Fixes: 193a68011fdc ("staging: typec: tcpm: Respond to Discover Identity commands") Signed-off-by: Kyle Tso Reviewed-by: Guenter Roeck Acked-by: Heikki Krogerus --- drivers/usb/typec/tcpm/tcpm.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 7db6ae3e9c0b..a56bc71f4eb5 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -2458,7 +2458,10 @@ static void tcpm_pd_data_request(struct tcpm_port *port, NONE_AMS); break; case PD_DATA_VENDOR_DEF: - tcpm_handle_vdm_request(port, msg->payload, cnt); + if (tcpm_vdm_ams(port) || port->nr_snk_vdo) + tcpm_handle_vdm_request(port, msg->payload, cnt); + else if (port->negotiated_rev > PD_REV20) + tcpm_pd_handle_msg(port, PD_MSG_CTRL_NOT_SUPP, NONE_AMS); break; case PD_DATA_BIST: port->bist_request = le32_to_cpu(msg->payload[0]);