From mboxrd@z Thu Jan 1 00:00:00 1970 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 4319FC6369E for ; Thu, 19 Nov 2020 15:56:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F0882246AD for ; Thu, 19 Nov 2020 15:56:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729065AbgKSPz6 (ORCPT ); Thu, 19 Nov 2020 10:55:58 -0500 Received: from mga14.intel.com ([192.55.52.115]:40299 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728893AbgKSPz1 (ORCPT ); Thu, 19 Nov 2020 10:55:27 -0500 IronPort-SDR: pnbMJq1NjcFMe2qQ5Lzf8P4X9qWAMX8fQ1sSh1DgSyFbAAHdKCm3LKtgRIrd+/y5Ku8j9LAtnM HrMgCq+6u6XA== X-IronPort-AV: E=McAfee;i="6000,8403,9809"; a="170527256" X-IronPort-AV: E=Sophos;i="5.78,490,1599548400"; d="scan'208";a="170527256" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Nov 2020 07:55:26 -0800 IronPort-SDR: LbEXB00T3Xt0bqvCp/0/QGK7mGpZ5zmWwLzTG+K/fKg+WD/rSXnU3u63m9FueP1nf62AQrn/hC 3r4e5kdIWyYg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.78,490,1599548400"; d="scan'208";a="330971885" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga006.jf.intel.com with ESMTP; 19 Nov 2020 07:55:24 -0800 Received: by black.fi.intel.com (Postfix, from userid 1001) id DB2AC48A; Thu, 19 Nov 2020 17:55:23 +0200 (EET) From: Mika Westerberg To: linux-kernel@vger.kernel.org Cc: Yehezkel Bernat , Michael Jamet , Andreas Noever , Lukas Wunner , Greg Kroah-Hartman , Mika Westerberg Subject: [PATCH 04/12] thunderbolt: Keep the parent runtime resumed for a while on device disconnect Date: Thu, 19 Nov 2020 18:55:15 +0300 Message-Id: <20201119155523.41332-5-mika.westerberg@linux.intel.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201119155523.41332-1-mika.westerberg@linux.intel.com> References: <20201119155523.41332-1-mika.westerberg@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When doing device firmware upgrade the device will disconnect for a while and then reconnect back. Keep the parent device (and the whole domain) powered for a while so we don't need to runtime resume immediately when the device is connected back after the device upgrade completes. Signed-off-by: Mika Westerberg --- drivers/thunderbolt/icm.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/thunderbolt/icm.c b/drivers/thunderbolt/icm.c index beee6e6b8b6e..635b949fb1d6 100644 --- a/drivers/thunderbolt/icm.c +++ b/drivers/thunderbolt/icm.c @@ -870,7 +870,13 @@ icm_fr_device_disconnected(struct tb *tb, const struct icm_pkg_header *hdr) return; } + pm_runtime_get_sync(sw->dev.parent); + remove_switch(sw); + + pm_runtime_mark_last_busy(sw->dev.parent); + pm_runtime_put_autosuspend(sw->dev.parent); + tb_switch_put(sw); } @@ -1280,8 +1286,13 @@ icm_tr_device_disconnected(struct tb *tb, const struct icm_pkg_header *hdr) tb_warn(tb, "no switch exists at %llx, ignoring\n", route); return; } + pm_runtime_get_sync(sw->dev.parent); remove_switch(sw); + + pm_runtime_mark_last_busy(sw->dev.parent); + pm_runtime_put_autosuspend(sw->dev.parent); + tb_switch_put(sw); } -- 2.29.2