From patchwork Tue Sep 29 02:39:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Badhri Jagan Sridharan X-Patchwork-Id: 297448 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 CC033C2D0A8 for ; Tue, 29 Sep 2020 02:40:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 82A132193E for ; Tue, 29 Sep 2020 02:40:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="raUIMniW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727461AbgI2Ckb (ORCPT ); Mon, 28 Sep 2020 22:40:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40026 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727423AbgI2Cka (ORCPT ); Mon, 28 Sep 2020 22:40:30 -0400 Received: from mail-qk1-x749.google.com (mail-qk1-x749.google.com [IPv6:2607:f8b0:4864:20::749]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 41DC2C0613CE for ; Mon, 28 Sep 2020 19:40:29 -0700 (PDT) Received: by mail-qk1-x749.google.com with SMTP id w126so1832275qka.5 for ; Mon, 28 Sep 2020 19:40:29 -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=FDE8JH5iPBDdMZrcw0lHN45wyLg7MEGTUUjFxal7+nQ=; b=raUIMniWFSZ0XB/SBEGAMmIRKuxTIUmhAwfUPEeRgwKwrS0VhS9LFiMv4ov9J76dWm MAiICCi//cuOlghcOvFW+lTvn0blowtmmfMjdzZ2OzW2DODV/5Q2ntkJPww93OL/OVws FhBm/h/6uBTJteA/Nr5UGyS1bolh7zak8xpPrZJGRf6VYVoau5S4h2TX98vfSVDa4Kb0 /kCh5vLbfT4b8oTO7+aZFPcWJLoYYOm0smXmwwl7MndyL7F+z6wmrIrg3T6QU/tkcXXR oxWnGdncgc08GfbOJdog4xjlExV+/n/Iq3BrEpyM0Mi2JmRuaqczcZF6lBH8GQlWJiGb f3rA== 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=FDE8JH5iPBDdMZrcw0lHN45wyLg7MEGTUUjFxal7+nQ=; b=lhlgSm4SIOibPoYBnxg9xsVm8FSqmXl9u8aF/qQBwYTDTljW1QBBDLCWPUR+cgKmOJ dYqpRIPrUDWRwamIQ/+TYUFTA6Vf9oV7HiSOsUTl8w9viZWOrmzb2k9+XfDQE/wjBIVK KbFQeVUfkySVjtzDsVE4UOeG9mFEBdquGXdefykp44kxDvnM54qDTtUuoJxLfmBwT68f weEgSwVG00fTHWKS6yNIJNCHV408UyHW8d0TlI0oPSnBcv99qyVDfGLN/OSfr89pp9xJ ze65L/1PtAOkQm6pHeyopZjpOnEQW54nJBHU1XkSWlg4ZeVKQPoSGqRcoduA0EL6kQtd A5uA== X-Gm-Message-State: AOAM533XKKoBnfLjpGrthyY2O0/eyJQvF50BBdBgMljw0QBxp3LYCT3u dUezYbEvtm1IsF3xEoIaxgepIi9DiuU= X-Google-Smtp-Source: ABdhPJyZs/dmhKwr7BM1wdaY5P3GGRaW3k2Mgh5jtN8BX2KtLRIlyMDXyL73gFUCdW+/5EluuTcoWKsJFVc= 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:ad4:4891:: with SMTP id bv17mr2555873qvb.20.1601347228391; Mon, 28 Sep 2020 19:40:28 -0700 (PDT) Date: Mon, 28 Sep 2020 19:39:58 -0700 In-Reply-To: <20200929024004.244992-1-badhri@google.com> Message-Id: <20200929024004.244992-10-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 09/15] usb: typec: tcpm: 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 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org During FRS hardware autonomously starts to source vbus. Provide callback to perform chip specific operations. Signed-off-by: Badhri Jagan Sridharan --- drivers/usb/typec/tcpm/tcpm.c | 9 +++++++++ include/linux/usb/tcpm.h | 4 ++++ 2 files changed, 13 insertions(+) diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 55535c4f66bf..02b7f623f584 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -4090,7 +4090,16 @@ static void _tcpm_pd_vbus_on(struct tcpm_port *port) case SRC_TRY_DEBOUNCE: /* Do nothing, waiting for sink detection */ break; + case FR_SWAP_SEND: + case FR_SWAP_SEND_TIMEOUT: + case FR_SWAP_SNK_SRC_TRANSITION_TO_OFF: + case FR_SWAP_SNK_SRC_SOURCE_VBUS_APPLIED: + if (port->tcpc->frs_sourcing_vbus) + port->tcpc->frs_sourcing_vbus(port->tcpc); + break; case FR_SWAP_SNK_SRC_NEW_SINK_READY: + if (port->tcpc->frs_sourcing_vbus) + port->tcpc->frs_sourcing_vbus(port->tcpc); tcpm_set_state(port, FR_SWAP_SNK_SRC_SOURCE_VBUS_APPLIED, 0); break; diff --git a/include/linux/usb/tcpm.h b/include/linux/usb/tcpm.h index 09762d26fa0c..7303f518ba49 100644 --- a/include/linux/usb/tcpm.h +++ b/include/linux/usb/tcpm.h @@ -83,6 +83,9 @@ enum tcpm_transmit_type { * Optional; Called to enable/disable PD 3.0 fast role swap. * Enabling frs is accessory dependent as not all PD3.0 * accessories support fast role swap. + * @frs_sourcing_vbus: + * Optional; Called to notify that vbus is now being sourced. + * Low level drivers can perform chip specific operations, if any. */ struct tcpc_dev { struct fwnode_handle *fwnode; @@ -109,6 +112,7 @@ struct tcpc_dev { const struct pd_message *msg); int (*set_bist_data)(struct tcpc_dev *dev, bool on); int (*enable_frs)(struct tcpc_dev *dev, bool enable); + void (*frs_sourcing_vbus)(struct tcpc_dev *dev); }; struct tcpm_port;