From patchwork Tue Feb 2 00:31:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Badhri Jagan Sridharan X-Patchwork-Id: 12060279 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=-26.3 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, 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 882FDC433DB for ; Tue, 2 Feb 2021 00:32:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5647564ED0 for ; Tue, 2 Feb 2021 00:32:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231262AbhBBAbv (ORCPT ); Mon, 1 Feb 2021 19:31:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45392 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231142AbhBBAbt (ORCPT ); Mon, 1 Feb 2021 19:31:49 -0500 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 05213C0613D6 for ; Mon, 1 Feb 2021 16:31:09 -0800 (PST) Received: by mail-yb1-xb4a.google.com with SMTP id m7so6658573ybm.19 for ; Mon, 01 Feb 2021 16:31:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=sPq47L+9BIHkF/0ZeuUBPSrtxyRugGo3S/yCj7eF4vI=; b=UypH13Q2VyB2rYB0/02VP0iA/N6ovqoPXcdrMWGpkOJtHHPXrG3wVAetubYWgkIuM8 1txWwWgRgMBuVgwS9PWbL5JBy6y9gYDL1+yMJ9qQKESWseuiiiQa/uoOxcvs09tmyW/O U987PNj4kr2iQFxAmZClhqys6LVPTRl6UxOr9vo0UHC9NWduC2zdX5gNDFCeZhwLvq4w 4iJ295wEEFWpHaqW22+nyjhvudMTu9E/JMIcPVeWINFs7qdONSwnIGVlbOoPJhwnSnvo 8YQdgWW/EbMn2/lgLPmhcP0pYgCc2ykKzqUTJkDZsjHoq1Jv0Fo/kP+QJNkl33PspHfP IkcQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=sPq47L+9BIHkF/0ZeuUBPSrtxyRugGo3S/yCj7eF4vI=; b=PAYiTOX1/2LkfGsjzMRnwUq8ItpQ5J0pochUbYFW+T5RYjeDKPg9HVQAgpcSBWiloM 7a7TX1MLDubiZe01uU2To8Y2pvV/5iuC9YHbSbPULTSoF/7LQpYD1ecG/QsjrTXAsP34 pyyDigMyE/T0FJ7o3CN0qT5EZuIYuzCbSRpZ3Zx0VLf2G/KKr1AKnn9hGQF2BxhBX3fw obZlxlOswWVWPAHvTM8hpwoAFV5jQJEpVrLvrF6PkUMYD1mAKoTAP+L7nl60oiOXOdr/ TbcTKi5rMJOHG9sL6Tn9p7owQ+OGLuULN7JIpzxWJULDXo7B0tYCyDUO3zWmkHnBRWDZ yKHQ== X-Gm-Message-State: AOAM533yEajfe2upLc7274xAtOeV6NMgoJBAT/alk+262nFfn9eUPc4X UqL6OCOZKE4Z+jXNMIGjefAa2OfGOF8= X-Google-Smtp-Source: ABdhPJz5bT+4VkOmzylQfs/chnDSdWvTMSgFT+G88ZX3256ESxb7jNf34H7GjkMpjNIb3CsoT0ZHwc/uJD8= Sender: "badhri via sendgmr" X-Received: from badhri.mtv.corp.google.com ([2620:15c:211:201:d56c:119f:44fb:5da4]) (user=badhri job=sendgmr) by 2002:a25:1086:: with SMTP id 128mr28250556ybq.375.1612225868244; Mon, 01 Feb 2021 16:31:08 -0800 (PST) Date: Mon, 1 Feb 2021 16:31:00 -0800 In-Reply-To: <20210202003101.221145-1-badhri@google.com> Message-Id: <20210202003101.221145-2-badhri@google.com> Mime-Version: 1.0 References: <20210202003101.221145-1-badhri@google.com> X-Mailer: git-send-email 2.30.0.365.g02bc693789-goog Subject: [PATCH v2 2/3] usb: typec: tcpci: Add Callback to Usb Communication capable partner From: Badhri Jagan Sridharan To: Guenter Roeck , Heikki Krogerus , Greg Kroah-Hartman , Kyle Tso Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Badhri Jagan Sridharan Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The USB Communications Capable bit indicates if port partner is capable of communication over the USB data lines (e.g. D+/- or SS Tx/Rx). TCPM passes this information for chip specific operations. Signed-off-by: Badhri Jagan Sridharan Reviewed-by: Heikki Krogerus Reviewed-by: Guenter Roeck --- drivers/usb/typec/tcpm/tcpci.c | 9 +++++++++ drivers/usb/typec/tcpm/tcpci.h | 6 ++++++ 2 files changed, 15 insertions(+) diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c index f676abab044b..a27deb0b5f03 100644 --- a/drivers/usb/typec/tcpm/tcpci.c +++ b/drivers/usb/typec/tcpm/tcpci.c @@ -255,6 +255,14 @@ static int tcpci_set_polarity(struct tcpc_dev *tcpc, TCPC_TCPC_CTRL_ORIENTATION : 0); } +static void tcpci_set_partner_usb_comm_capable(struct tcpc_dev *tcpc, bool capable) +{ + struct tcpci *tcpci = tcpc_to_tcpci(tcpc); + + if (tcpci->data->set_partner_usb_comm_capable) + tcpci->data->set_partner_usb_comm_capable(tcpci, tcpci->data, capable); +} + static int tcpci_set_vconn(struct tcpc_dev *tcpc, bool enable) { struct tcpci *tcpci = tcpc_to_tcpci(tcpc); @@ -720,6 +728,7 @@ struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data) tcpci->tcpc.set_bist_data = tcpci_set_bist_data; tcpci->tcpc.enable_frs = tcpci_enable_frs; tcpci->tcpc.frs_sourcing_vbus = tcpci_frs_sourcing_vbus; + tcpci->tcpc.set_partner_usb_comm_capable = tcpci_set_partner_usb_comm_capable; if (tcpci->data->auto_discharge_disconnect) { tcpci->tcpc.enable_auto_vbus_discharge = tcpci_enable_auto_vbus_discharge; diff --git a/drivers/usb/typec/tcpm/tcpci.h b/drivers/usb/typec/tcpm/tcpci.h index c3c7d07d9b4e..57b6e24e0a0c 100644 --- a/drivers/usb/typec/tcpm/tcpci.h +++ b/drivers/usb/typec/tcpm/tcpci.h @@ -161,6 +161,10 @@ struct tcpci; * Optional; Enables TCPC to autonously discharge vbus on disconnect. * @vbus_vsafe0v: * optional; Set when TCPC can detect whether vbus is at VSAFE0V. + * @set_partner_usb_comm_capable: + * Optional; The USB Communications Capable bit indicates if port + * partner is capable of communication over the USB data lines + * (e.g. D+/- or SS Tx/Rx). Called to notify the status of the bit. */ struct tcpci_data { struct regmap *regmap; @@ -175,6 +179,8 @@ struct tcpci_data { enum typec_cc_status cc); int (*set_vbus)(struct tcpci *tcpci, struct tcpci_data *data, bool source, bool sink); void (*frs_sourcing_vbus)(struct tcpci *tcpci, struct tcpci_data *data); + void (*set_partner_usb_comm_capable)(struct tcpci *tcpci, struct tcpci_data *data, + bool capable); }; struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data);