From patchwork Thu Oct 29 06:31:32 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: 11865369 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 A6607157C for ; Thu, 29 Oct 2020 07:44:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7D5D7214DB for ; Thu, 29 Oct 2020 07:44:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="MzDz/8lG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730213AbgJ2HkK (ORCPT ); Thu, 29 Oct 2020 03:40:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55390 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727332AbgJ2HYw (ORCPT ); Thu, 29 Oct 2020 03:24:52 -0400 Received: from mail-qk1-x74a.google.com (mail-qk1-x74a.google.com [IPv6:2607:f8b0:4864:20::74a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DFAD5C05BD23 for ; Wed, 28 Oct 2020 23:31:52 -0700 (PDT) Received: by mail-qk1-x74a.google.com with SMTP id k12so1182532qkj.18 for ; Wed, 28 Oct 2020 23:31:52 -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=mtMGAzSIXhq9aXQBscSgtdribEudRLJd8ZDm7F7aN+Q=; b=MzDz/8lGegKD7cOyFrpzaM6DS87nvvbx5nC+Fu1+89L7xSDv67Prs/sKVZt5GCSseH NtoZBcYdnR+lrr01rf3YhjeOs1odtXOzobZqSqdojFLuba94QnPnOYxFRsq2qNaMmP7e 3crBZMTfYUDkhn04AfNxUMfhXtiYdByypHs2uPKJ3wzO1NO9vgr8+zw15siaHE4XEoGo tTcKCWkNPO8Roev3aSjwapCDZ3VTN2jSbvKvttzgaOcSYufQSEM4DAOowNW3g7hFfdJm cvxC2nHc1bF1irZl83dmbzzi9mrGzuunXppIE6H8n1SUQYkBQM5zQcaKKLO5Sj1foV+2 x02Q== 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=mtMGAzSIXhq9aXQBscSgtdribEudRLJd8ZDm7F7aN+Q=; b=KEjfitu+JpBcyNYOZwRqIcGVrkFUN5a4MdRonKBzexWE+l91vyHcQ2fFX0pyK3/fY1 nPacgXWbR3UGAC3RSA7dmTntqt45ib6txj23dm9nq2G5AWd2zUVS3gZpfo8vPlf17Df4 3bZPslH28xxn25CxGRRq/akNpLq6S2AQBzgNQ7G3RxbfEH0h79qugv0ErwM0ABrW/hpZ P5rGOvX/IODP7Umznp82mbh/g2vPyUakC+v2ufxmfmfjgWWQtz6FstAzRcoQXWhSRv9N Sbj2ABi8FwbWpuRSwFlevs7vGhMkVnIl2Bi+jQCoHyMeZ4uUZiODVCxPCPOG5AMb6Otr LlNw== X-Gm-Message-State: AOAM530t9EWfZpeOAo8iJOo0m00j0BVi2HK2tLfq1tatggC92uD2jyTl TKasuGLWKvLsSgc5Bwc1F6xptX6hbUo= X-Google-Smtp-Source: ABdhPJzK8m+EfSDYe+BcMtQGqbsI1KxK0DzV6zOtcf9ICiFjzJN/9zR2s+8fA5Ek1aEOXA7qry1QhZV+TjE= Sender: "badhri via sendgmr" X-Received: from badhri.mtv.corp.google.com ([2620:15c:211:201:f292:1cff:fee0:66cf]) (user=badhri job=sendgmr) by 2002:a05:6214:951:: with SMTP id dn17mr3023019qvb.9.1603953112037; Wed, 28 Oct 2020 23:31:52 -0700 (PDT) Date: Wed, 28 Oct 2020 23:31:32 -0700 In-Reply-To: <20201029063138.1429760-1-badhri@google.com> Message-Id: <20201029063138.1429760-5-badhri@google.com> Mime-Version: 1.0 References: <20201029063138.1429760-1-badhri@google.com> X-Mailer: git-send-email 2.29.1.341.ge80a0c044ae-goog Subject: [PATCH v12 04/10] 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 , Dan Carpenter 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 --- Introduced in v9. Changes since v10: Added Reviewed-by: Heikki Krogerus Changes since v11: none --- 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 561480b67bce..0123d2f14c96 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -4091,7 +4091,16 @@ 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;