From patchwork Tue Apr 7 21:30:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 228123 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=-7.0 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS autolearn=unavailable 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 DD7EDC2BB1D for ; Tue, 7 Apr 2020 21:31:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B312A20748 for ; Tue, 7 Apr 2020 21:31:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="OAsq7+uX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726512AbgDGVbI (ORCPT ); Tue, 7 Apr 2020 17:31:08 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:34322 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726416AbgDGVbI (ORCPT ); Tue, 7 Apr 2020 17:31:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1586295067; 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; bh=qHR0CsCwZ0V31PL2BJqAGUsMlkV/uU0L7++NwyRQkxk=; b=OAsq7+uXbTRmdURiYMEgrv+EKbYXGebLYPCISsSPyPNQtBqnpGuPMqqIbT6T5dGeKZyre3 n5brb2MZXFqTFzmSVwoiefDwp+p7sXeundxKsSXl7QsWi/HlpA8gA8slpFHBSgogVtnwH6 rsDTssyugF5yz3v7MqeauWBBU+lXKGw= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-402-zJCwTx1xNny4xDdybgXr8A-1; Tue, 07 Apr 2020 17:31:03 -0400 X-MC-Unique: zJCwTx1xNny4xDdybgXr8A-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id BEC5E149C3; Tue, 7 Apr 2020 21:31:01 +0000 (UTC) Received: from x1.localdomain.com (ovpn-112-63.ams2.redhat.com [10.36.112.63]) by smtp.corp.redhat.com (Postfix) with ESMTP id 51AC75C1B0; Tue, 7 Apr 2020 21:31:00 +0000 (UTC) From: Hans de Goede To: Darren Hart , Andy Shevchenko Cc: Hans de Goede , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, Maxim Mikityanskiy , "5 . 3+" Subject: [PATCH] platform/x86: intel_int0002_vgpio: Only bind to the INT0002 dev when using s2idle Date: Tue, 7 Apr 2020 23:30:58 +0200 Message-Id: <20200407213058.62870-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org Commit 871f1f2bcb01 ("platform/x86: intel_int0002_vgpio: Only implement irq_set_wake on Bay Trail") stopped passing irq_set_wake requests on to the parents IRQ because this was breaking suspend (causing immediate wakeups) on an Asus E202SA. This workaround for this issue is mostly fine, on most Cherry Trail devices where we need the INT0002 device for wakeups by e.g. USB kbds, the parent IRQ is shared with the ACPI SCI and that is marked as wakeup anyways. But not on all devices, specifically on a Medion Akoya E1239T there is no SCI at all, and because the irq_set_wake request is not passed on to the parent IRQ, wake up by the builtin USB kbd does not work here. So the workaround for the Asus E202SA immediate wake problem is causing problems elsewhere; and in hindsight it is not the correct fix, the Asus E202SA uses Airmont CPU cores, but this does not mean it is a Cherry Trail based device, Brasswell uses Airmont CPU cores too and this actually is a Braswell device. Most (all?) Braswell devices use classic S3 mode suspend rather then s2idle suspend and in this case directly dealing with PME events as the INT0002 driver does likely is not the best idea, so that this is causing issues is not surprising. Replace the workaround of not passing irq_set_wake requests on to the parents IRQ, by not binding to the INT0002 device when s2idle is not used. This fixes USB kbd wakeups not working on some Cherry Trail devices, while still avoiding mucking with the wakeup flags on the Asus E202SA (and other Brasswell devices). Cc: Maxim Mikityanskiy Cc: 5.3+ # 5.3+ Fixes: 871f1f2bcb01 ("platform/x86: intel_int0002_vgpio: Only implement irq_set_wake on Bay Trail") Signed-off-by: Hans de Goede --- drivers/platform/x86/intel_int0002_vgpio.c | 18 +++++------------- 1 file changed, 5 insertions(+), 13 deletions(-) diff --git a/drivers/platform/x86/intel_int0002_vgpio.c b/drivers/platform/x86/intel_int0002_vgpio.c index 55f088f535e2..e8bec72d3823 100644 --- a/drivers/platform/x86/intel_int0002_vgpio.c +++ b/drivers/platform/x86/intel_int0002_vgpio.c @@ -143,21 +143,9 @@ static struct irq_chip int0002_byt_irqchip = { .irq_set_wake = int0002_irq_set_wake, }; -static struct irq_chip int0002_cht_irqchip = { - .name = DRV_NAME, - .irq_ack = int0002_irq_ack, - .irq_mask = int0002_irq_mask, - .irq_unmask = int0002_irq_unmask, - /* - * No set_wake, on CHT the IRQ is typically shared with the ACPI SCI - * and we don't want to mess with the ACPI SCI irq settings. - */ - .flags = IRQCHIP_SKIP_SET_WAKE, -}; - static const struct x86_cpu_id int0002_cpu_ids[] = { INTEL_CPU_FAM6(ATOM_SILVERMONT, int0002_byt_irqchip), /* Valleyview, Bay Trail */ - INTEL_CPU_FAM6(ATOM_AIRMONT, int0002_cht_irqchip), /* Braswell, Cherry Trail */ + INTEL_CPU_FAM6(ATOM_AIRMONT, int0002_byt_irqchip), /* Braswell, Cherry Trail */ {} }; @@ -181,6 +169,10 @@ static int int0002_probe(struct platform_device *pdev) if (!cpu_id) return -ENODEV; + /* We only need to directly deal with PMEs when using s2idle */ + if (!pm_suspend_default_s2idle()) + return -ENODEV; + irq = platform_get_irq(pdev, 0); if (irq < 0) return irq;