From patchwork Tue Feb 28 09:03:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 13154550 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 513E8C64ED6 for ; Tue, 28 Feb 2023 09:04:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230172AbjB1JEA (ORCPT ); Tue, 28 Feb 2023 04:04:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45344 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230164AbjB1JD6 (ORCPT ); Tue, 28 Feb 2023 04:03:58 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 87C1FA27E for ; Tue, 28 Feb 2023 01:03:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1677574993; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=dugI5ah/rpmEloFzsd7SNav7KkzrRZ4JKHEJqiV00wk=; b=WS07IS7leAMcN/9eE7s5aBf7qW4ICjZnN6kQNWyrOVkQSlSsMM3XwQ5SYDOH6/d7tAPHJn r8fqcxnXVgpinmXlGJvlfS+lT9HO84qn48ZZlJA9uBUeKJC8Oh+CCOuj6f40x+4vuDAraw GR8byTqV1G17TssuZvbKC7SmIPCUZ8s= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-492-GWoRfH_vOgaRt3xM7_AtJA-1; Tue, 28 Feb 2023 04:03:09 -0500 X-MC-Unique: GWoRfH_vOgaRt3xM7_AtJA-1 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 6780E382888E; Tue, 28 Feb 2023 09:03:09 +0000 (UTC) Received: from shalem.redhat.com (unknown [10.39.194.124]) by smtp.corp.redhat.com (Postfix) with ESMTP id A4726492B0E; Tue, 28 Feb 2023 09:03:08 +0000 (UTC) From: Hans de Goede To: Greg Kroah-Hartman , Heikki Krogerus Cc: Hans de Goede , linux-usb@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH 3/3] usb: ucsi_acpi: Increase the command completion timeout Date: Tue, 28 Feb 2023 10:03:05 +0100 Message-Id: <20230228090305.9335-3-hdegoede@redhat.com> In-Reply-To: <20230228090305.9335-1-hdegoede@redhat.com> References: <20230228090305.9335-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.9 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Commit 130a96d698d7 ("usb: typec: ucsi: acpi: Increase command completion timeout value") increased the timeout from 5 seconds to 60 seconds due to issues related to alternate mode discovery. After the alternate mode discovery switch to polled mode the timeout was reduced, but instead of being set back to 5 seconds it was reduced to 1 second. This is causing problems when using a Lenovo ThinkPad X1 yoga gen7 connected over Type-C to a LG 27UL850-W (charging DP over Type-C). When the monitor is already connected at boot the following error is logged: "PPM init failed (-110)", /sys/class/typec is empty and on unplugging the NULL pointer deref fixed earlier in this series happens. When the monitor is connected after boot the following error is logged instead: "GET_CONNECTOR_STATUS failed (-110)". Setting the timeout back to 5 seconds fixes both cases. Fixes: e08065069fc7 ("usb: typec: ucsi: acpi: Reduce the command completion timeout") Cc: stable@vger.kernel.org Signed-off-by: Hans de Goede --- drivers/usb/typec/ucsi/ucsi_acpi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/typec/ucsi/ucsi_acpi.c b/drivers/usb/typec/ucsi/ucsi_acpi.c index ce0c8ef80c04..62206a6b8ea7 100644 --- a/drivers/usb/typec/ucsi/ucsi_acpi.c +++ b/drivers/usb/typec/ucsi/ucsi_acpi.c @@ -78,7 +78,7 @@ static int ucsi_acpi_sync_write(struct ucsi *ucsi, unsigned int offset, if (ret) goto out_clear_bit; - if (!wait_for_completion_timeout(&ua->complete, HZ)) + if (!wait_for_completion_timeout(&ua->complete, 5 * HZ)) ret = -ETIMEDOUT; out_clear_bit: