From patchwork Tue Oct 20 09:36:23 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: 11846157 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9529014B4 for ; Tue, 20 Oct 2020 09:37:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6BA04222E8 for ; Tue, 20 Oct 2020 09:37:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="rq9AdQaN" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405726AbgJTJgr (ORCPT ); Tue, 20 Oct 2020 05:36:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51094 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2392939AbgJTJgq (ORCPT ); Tue, 20 Oct 2020 05:36:46 -0400 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0262AC0613D5 for ; Tue, 20 Oct 2020 02:36:45 -0700 (PDT) Received: by mail-yb1-xb49.google.com with SMTP id b189so1501209ybh.5 for ; Tue, 20 Oct 2020 02:36:44 -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=JHtRR3qQUbK6QyoBC6NKYxLDcobd0wicECGYDz6ynPE=; b=rq9AdQaNwruAzMfHKSzMpPVC7WcstN4tx30jbBH58psfSyNYWtO/EuZMXe+hRBMPC4 Lo54FHzG4y0b32HA22tzPkNbFGAM29q3+GvtPh/zJmkT8veDAEMwmX9QNY8vJUOlsaAb kQuZTMQTF73RYGiQDgbaAJF82IB1I4KTywf5Hl4d3HhSeWuBgvs+8XHzpJIoA0lWgbX0 SHPI1XWvOD6EzszVqUSNifCB1P0AGhQLiTtLXAJnTlgDUaBuR/OwK+WV24+GQL2EAowm VLkxtJCua1AB2k70DWIRlFB41d0tjNUarnJHH1/TLfuJDHiWMhnF3+CsaRmncFCJ+Hfh TZsA== 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=JHtRR3qQUbK6QyoBC6NKYxLDcobd0wicECGYDz6ynPE=; b=CosNKRHcFpHG9RDLoBYE2JDaif6Au0ImpjS0DEgZj4PrROY52J0ZSGlallHro1EU4T Ie4PefD263aFDZ+q4ru0y+eROLii5RLKfC/sBS922VNzRkoy2Fr+GYnHt+KArPaVIh48 f4R1WBGinhcI+xDUIKUC5QDzyUtUd55nC/FvN8kvSvoarkqHoHrb+LyTnrM/DntBoGDY v3J9XIBfNvlN7JmcinUXUO/yhSzxJeQzYjnG2BVoZJSX2Emhi/S37gaA5vDWS6+duHbi zAVZpiGdx4oN0ClpF5ta4pFBHWoAuX5WT13gX2S9+5iHI461UIjDu4We+R5urRV9p+6S jxBQ== X-Gm-Message-State: AOAM532ldFV+AUHdg++u0sF10f2XgnExYZ6BHWJ4BqWrS/xWkshPj0b+ VukZF+pbft/fHLTwiIeNXhUGXPimnP4= X-Google-Smtp-Source: ABdhPJwu4NP9Ipq20LeVdsBaScBQ4xLMRZeWMvb69oJXIEOZ/XHh551SZ+1jywPD0QCh6BQKmj2E+c1J6fg= 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:a25:558b:: with SMTP id j133mr2906472ybb.224.1603186604161; Tue, 20 Oct 2020 02:36:44 -0700 (PDT) Date: Tue, 20 Oct 2020 02:36:23 -0700 In-Reply-To: <20201020093627.256885-1-badhri@google.com> Message-Id: <20201020093627.256885-7-badhri@google.com> Mime-Version: 1.0 References: <20201020093627.256885-1-badhri@google.com> X-Mailer: git-send-email 2.29.0.rc1.297.gfa9743e501-goog Subject: [PATCH v11 06/10] 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 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 --- 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. No changes since v9. Changes since v10: Added Reviewed-by: Heikki Krogerus --- 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);