From patchwork Wed Mar 8 15:42:44 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: 13166017 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 E2ED7C678D5 for ; Wed, 8 Mar 2023 15:45:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229462AbjCHPpe (ORCPT ); Wed, 8 Mar 2023 10:45:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42878 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232204AbjCHPow (ORCPT ); Wed, 8 Mar 2023 10:44:52 -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 AA1FC26586 for ; Wed, 8 Mar 2023 07:43:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1678290180; 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=RPVa/J5Cl7M2LIQutNWuK1JrUlzAeTjMVNLtf2BCpTE=; b=ROHeQC0cC04PUQQUb5i+4rBwzugX6qRj5sd3Jw7yJPA5sVwf8bHSuRD2HI48Kqbw/kUals WT8Fokr7hsdEVQ3RKjUKRlX/9nT9e2+M89NnNfsr/kzHIWvy6lGOtNS7/clNovusbqVJZ6 8uBUOSZpDl8E6Z9+wpOS2OHs8iSpTc0= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-258-_N02oHL4PF2VkJt9L5qcuw-1; Wed, 08 Mar 2023 10:42:57 -0500 X-MC-Unique: _N02oHL4PF2VkJt9L5qcuw-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 BD8EB87A381; Wed, 8 Mar 2023 15:42:56 +0000 (UTC) Received: from localhost.localdomain (unknown [10.39.195.179]) by smtp.corp.redhat.com (Postfix) with ESMTP id DD479492B04; Wed, 8 Mar 2023 15:42:55 +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 v4 3/3] usb: ucsi_acpi: Increase the command completion timeout Date: Wed, 8 Mar 2023 16:42:44 +0100 Message-Id: <20230308154244.722337-4-hdegoede@redhat.com> In-Reply-To: <20230308154244.722337-1-hdegoede@redhat.com> References: <20230308154244.722337-1-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 Reviewed-by: Heikki Krogerus 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: