From mboxrd@z Thu Jan 1 00:00:00 1970 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=-20.9 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 986B7C2D0A8 for ; Tue, 29 Sep 2020 02:40:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 61AD12184D for ; Tue, 29 Sep 2020 02:40:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="eThgSYYw" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727519AbgI2Ckk (ORCPT ); Mon, 28 Sep 2020 22:40:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40052 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727459AbgI2Ckb (ORCPT ); Mon, 28 Sep 2020 22:40:31 -0400 Received: from mail-qv1-xf49.google.com (mail-qv1-xf49.google.com [IPv6:2607:f8b0:4864:20::f49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 39317C0613CE for ; Mon, 28 Sep 2020 19:40:31 -0700 (PDT) Received: by mail-qv1-xf49.google.com with SMTP id dj20so1753094qvb.23 for ; Mon, 28 Sep 2020 19:40:31 -0700 (PDT) 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=+8V9XbF+nrhvOeFjlq1gqGlcRl5hrQT9omJcJW0tz7E=; b=eThgSYYws9kLpLHXJUFr8JlqfR0wyD59aDcTKSpqbsx6KIFxXcnLhU123aJufAG5WH aDXDmzpTpskIbia0MgBBXSxSbn9D49hM95Y5gcdvk5KasouU/EUxaaOkgaLoA7gLHbBZ mLFZyzCFBFplneMO5kRnVhmXU8OVM+0SxYVaiILHXuCSd5etox30tyBSlB1pyq8j7vnl p+pt0YFFe0+KCPJNLCrOm6lKk/HCz3ASuUm/CgmjIvExOL/8MBztejPq9+WfTWQp84JX EqRvZ+FPJAi8dDJwpQAygrOGlF2gYOv2HypGFKuUp3WW+ZQz0YWAss5U+aX+fjVmfCzW QSWg== 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=+8V9XbF+nrhvOeFjlq1gqGlcRl5hrQT9omJcJW0tz7E=; b=fTzopLtIfUKCz/naToXJR/jzkssu08Mpsef+/SqJpkzsLBbJRzhyDMdw7tsIMK3axG HmepOmZwXusq2NhFIT54VJFsLSV7Cf3XGhH8YsBOr77TVr0NRdrzCF9Xgs7TFkGZPn+C a/KO1gzMPop0H0b+lLd4B1zynDA7lMyuuh8yrXo637WJ3MHyD/hjHqnpTMnqDotr/Vzv ZbjsopiuGEdu10Fjc6LVPrMkEpKshE1rwQjiN/HO+9xqtsIBQVRF8vq8RXuve9aJE+Pg eC8NOABNsCkpdu+r6sbQjt4bmIu3K/+Da6OySmPC9E421TkRLKZkcyRleRUeLxppT8Ty /nfg== X-Gm-Message-State: AOAM5326qny8mTgLvxB+LpdaVLTfbxv47+3JphXZzFl5I/Y8iVRa6612 8iRxGnLtHyeF9sVsSbY+T3/X3CG0u5U= X-Google-Smtp-Source: ABdhPJzwsg7Sc8wZ0WPfTkzvJTJdAdYy3e+MUHpTHIttV5fY2N8t9NGM6qfFCPHu+ad0WPdZNkpCdjyfmhM= Sender: "badhri via sendgmr" X-Received: from badhri.mtv.corp.google.com ([2620:15c:211:1:f292:1cff:fee0:66cf]) (user=badhri job=sendgmr) by 2002:ad4:58c7:: with SMTP id dh7mr2723471qvb.20.1601347230306; Mon, 28 Sep 2020 19:40:30 -0700 (PDT) Date: Mon, 28 Sep 2020 19:39:59 -0700 In-Reply-To: <20200929024004.244992-1-badhri@google.com> Message-Id: <20200929024004.244992-11-badhri@google.com> Mime-Version: 1.0 References: <20200929024004.244992-1-badhri@google.com> X-Mailer: git-send-email 2.28.0.709.gb0816b6eb0-goog Subject: [PATCH v9 10/15] usb: typec: tcpci: frs sourcing vbus callback From: Badhri Jagan Sridharan To: Guenter Roeck , Heikki Krogerus , Greg Kroah-Hartman , Rob Herring , Lee Jones , Mark Brown , Maxime Ripard , Alexandre Belloni , Thierry Reding , Prashant Malani , Badhri Jagan Sridharan Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org During FRS hardware autonomously starts to source vbus. Provide callback to perform chip specific operations. Signed-off-by: Badhri Jagan Sridharan --- v9 is the first version of this patch in the series. Added to fix occasional bug of vbus turning back on when disconnecting the FRS accessory after disconnect. --- drivers/usb/typec/tcpm/tcpci.c | 9 +++++++++ drivers/usb/typec/tcpm/tcpci.h | 4 ++++ 2 files changed, 13 insertions(+) diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c index f9f0af64da5f..f91688e43991 100644 --- a/drivers/usb/typec/tcpm/tcpci.c +++ b/drivers/usb/typec/tcpm/tcpci.c @@ -284,6 +284,14 @@ static int tcpci_enable_frs(struct tcpc_dev *dev, bool enable) return ret; } +static void tcpci_frs_sourcing_vbus(struct tcpc_dev *dev) +{ + struct tcpci *tcpci = tcpc_to_tcpci(dev); + + if (tcpci->data->frs_sourcing_vbus) + tcpci->data->frs_sourcing_vbus(tcpci, tcpci->data); +} + static int tcpci_set_bist_data(struct tcpc_dev *tcpc, bool enable) { struct tcpci *tcpci = tcpc_to_tcpci(tcpc); @@ -628,6 +636,7 @@ struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data) tcpci->tcpc.pd_transmit = tcpci_pd_transmit; 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; err = tcpci_parse_config(tcpci); if (err < 0) diff --git a/drivers/usb/typec/tcpm/tcpci.h b/drivers/usb/typec/tcpm/tcpci.h index 5ef07a56d67a..b418fe11b527 100644 --- a/drivers/usb/typec/tcpm/tcpci.h +++ b/drivers/usb/typec/tcpm/tcpci.h @@ -143,6 +143,9 @@ /* * @TX_BUF_BYTE_x_hidden * optional; Set when TX_BUF_BYTE_x can only be accessed through I2C_WRITE_BYTE_COUNT. + * @frs_sourcing_vbus: + * Optional; Callback to perform chip specific operations when FRS + * is sourcing vbus. */ struct tcpci; struct tcpci_data { @@ -154,6 +157,7 @@ struct tcpci_data { int (*start_drp_toggling)(struct tcpci *tcpci, struct tcpci_data *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); }; struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data); -- 2.28.0.709.gb0816b6eb0-goog