From patchwork Mon Sep 20 14:24:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heikki Krogerus X-Patchwork-Id: 12505497 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 96E08C433FE for ; Mon, 20 Sep 2021 14:24:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 70CD1610A0 for ; Mon, 20 Sep 2021 14:24:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236024AbhITOZr (ORCPT ); Mon, 20 Sep 2021 10:25:47 -0400 Received: from mga07.intel.com ([134.134.136.100]:20391 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230089AbhITOZr (ORCPT ); Mon, 20 Sep 2021 10:25:47 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10113"; a="286817103" X-IronPort-AV: E=Sophos;i="5.85,308,1624345200"; d="scan'208";a="286817103" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Sep 2021 07:24:20 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.85,308,1624345200"; d="scan'208";a="612525642" Received: from black.fi.intel.com (HELO black.fi.intel.com.) ([10.237.72.28]) by fmsmga001.fm.intel.com with ESMTP; 20 Sep 2021 07:24:18 -0700 From: Heikki Krogerus To: Greg Kroah-Hartman Cc: Benjamin Berg , Ulrich Huber , linux-usb@vger.kernel.org Subject: [PATCH 2/7] usb: typec: ucsi: Don't stop alt mode registration on busy condition Date: Mon, 20 Sep 2021 17:24:14 +0300 Message-Id: <20210920142419.54493-3-heikki.krogerus@linux.intel.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210920142419.54493-1-heikki.krogerus@linux.intel.com> References: <20210920142419.54493-1-heikki.krogerus@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org If the PPM says it's busy, we can now simply try again. Signed-off-by: Heikki Krogerus --- drivers/usb/typec/ucsi/ucsi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c index ffb5be51daf85..a35efd8174bd4 100644 --- a/drivers/usb/typec/ucsi/ucsi.c +++ b/drivers/usb/typec/ucsi/ucsi.c @@ -437,6 +437,8 @@ static int ucsi_register_altmodes(struct ucsi_connector *con, u8 recipient) command |= UCSI_GET_ALTMODE_CONNECTOR_NUMBER(con->num); command |= UCSI_GET_ALTMODE_OFFSET(i); len = ucsi_send_command(con->ucsi, command, alt, sizeof(alt)); + if (len == -EBUSY) + continue; if (len <= 0) return len;