From patchwork Thu Oct 8 06:15:50 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: 268750 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=-20.4 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=unavailable 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 28A2FC04EBE for ; Thu, 8 Oct 2020 06:16:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D770C20760 for ; Thu, 8 Oct 2020 06:16:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="A7j9tS/X" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728890AbgJHGQs (ORCPT ); Thu, 8 Oct 2020 02:16:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36798 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728731AbgJHGQZ (ORCPT ); Thu, 8 Oct 2020 02:16:25 -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 19F21C0613DA for ; Wed, 7 Oct 2020 23:16:22 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id s128so4354545ybc.21 for ; Wed, 07 Oct 2020 23:16:22 -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=6JgTqSJgT9+U2Syccyfmiliq6LISdJLZP+XxLV6n+5o=; b=A7j9tS/Xb9DrkemXROGwYAZIAH+oeggvQAtQS8NT4NivaYZZ6Gmv4It4sMocaubIfD Jx9rzrubwyZJMbRss6U4D6JGmRjl361sqzabsDSWWzX3FsZMLxNJolMPCucrwNXWeQpQ YBA689pJCngPpawU+lcAdLlxebL7Bi7xngIgjPf49duV4NrNVTwmyFmqpD0vCVbtsEFZ v+iVPcpYicJLsD1e8iIRLMv+GfHALCKatJVOf7uPNAyv6KunbwBreFNPT8PaDtoRfTTF yrv0rgVqQwvn0a2c77Vz2vO+hJDaI4p6gXRsu9HDLNPaEH8gTl4MILgk1yuVW/GWGq31 Ftmg== 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=6JgTqSJgT9+U2Syccyfmiliq6LISdJLZP+XxLV6n+5o=; b=bKQEupp9eUb8IdkUbPl/xiTeLLLNbweyUKBR4sG1WSQAEliaAebgsRgCWHjG+WujUG T9DmGaDxTo3TDlccayhv0VIjvvI2NiGpgCDaXAx7CxF2GQDwsCaOdJrKtRA0yhZXa8cB hfo1PiT2r96WB8Wzc3MX0CANmTD1YtyzUIs/Et6C5q3RLsjMAHSupjJ7inr6fQyVSn4G xiGoSO1B4jRd5NlHTCM5agM3NFTkQUKFAig6nI4P/enkOcg2nJ2JBHGBjiOoDXXj9kHr N5W/PuXuTxrVsgtnqq4iMmpdzym7OY7hLEATOJuJOGAEOJrbpjyCTn6/wEdmwfF76oXA lmCw== X-Gm-Message-State: AOAM532uyl3Zmvzpb64r2V2N61d2uONSp+3yEFdqg5iH8FfDsE2sNU3J gWNhS8rBaOBWzHW/CiRSFr0nDZ0X/68= X-Google-Smtp-Source: ABdhPJzszkClNH2usU/jYbzUnTVxrHehknearvSOg97dOsiJLg5nDDh+HSoFqt1uJKk3pOloWFkeGejaaqk= 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:a25:2393:: with SMTP id j141mr9028667ybj.462.1602137781268; Wed, 07 Oct 2020 23:16:21 -0700 (PDT) Date: Wed, 7 Oct 2020 23:15:50 -0700 In-Reply-To: <20201008061556.1402293-1-badhri@google.com> Message-Id: <20201008061556.1402293-10-badhri@google.com> Mime-Version: 1.0 References: <20201008061556.1402293-1-badhri@google.com> X-Mailer: git-send-email 2.28.0.806.g8561365e88-goog Subject: [PATCH v10 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, Amelie Delaunay 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 Reviewed-by: Heikki Krogerus --- Introduced in v9. No chages since then. --- 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;