From patchwork Sat Dec 25 12:00:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 528072 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 1C0BFC433F5 for ; Sat, 25 Dec 2021 12:00:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229844AbhLYMAw (ORCPT ); Sat, 25 Dec 2021 07:00:52 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:45831 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229828AbhLYMAw (ORCPT ); Sat, 25 Dec 2021 07:00:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1640433651; 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=1QYShQCzXSe5UVnvars9MhkRi1BpddBlHN5EzWs3jhc=; b=ZvV0fruIONUzKlHayRx3WpwyeVW1fIPRD2MgLegLlOc+T20fg8DiIx/8w4ALYhZ+CvbPPG gf6S1RDQwWSvlKnE15pU3T1EMtXI4jrJIpdDm0FxzciC5EGoYoTECWT5QCZ9rohGXx4hey +dPNDBqQzsCEy76+spPkbrTOSJ0jxOE= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-591-ByhwASINPLOvEw6yQM1n1g-1; Sat, 25 Dec 2021 07:00:49 -0500 X-MC-Unique: ByhwASINPLOvEw6yQM1n1g-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 1D7E981CCB4; Sat, 25 Dec 2021 12:00:48 +0000 (UTC) Received: from shalem.redhat.com (unknown [10.39.192.12]) by smtp.corp.redhat.com (Postfix) with ESMTP id 78FB19815B; Sat, 25 Dec 2021 12:00:41 +0000 (UTC) From: Hans de Goede To: Andy Shevchenko , Bartosz Golaszewski , Linus Walleij Cc: Hans de Goede , platform-driver-x86@vger.kernel.org, linux-gpio@vger.kernel.org Subject: [PATCH 2/2] gpio: crystalcove: Set IRQ domain bus token to DOMAIN_BUS_WIRED Date: Sat, 25 Dec 2021 13:00:26 +0100 Message-Id: <20211225120026.95268-2-hdegoede@redhat.com> In-Reply-To: <20211225120026.95268-1-hdegoede@redhat.com> References: <20211225120026.95268-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org For the CRC PMIC we end up with multiple irq-domains with the same fwnode. One for the irqchip which demultiplexes the actual PMIC interrupt into interrupts for the various cells (known as the level 1 interrupts); And 2 more for the irqchips which are part of the crystal_cove_gpio and crystal_cove_charger cells. This leads to the following error being printed when CONFIG_GENERIC_IRQ_DEBUGFS is enabled: debugfs: File '\_SB.I2C7.PMIC' in directory 'domains' already present! Set the bus token of the main IRQ domain to DOMAIN_BUS_WIRED to avoid this error, this also allows irq_find_matching_fwspec() to find the right domain if necessary. Note all 3 domain registering drivers need to set the IRQ domain bus token. This is necessary because the IRQ domain code defaults to creating the debugfs dir with just the fwnode name and then renames it when the bus token is set. So each one starts with the same default name and all 3 must be given a different name to avoid problems when one of the other drivers loads and starts with the same default name. Signed-off-by: Hans de Goede --- drivers/gpio/gpio-crystalcove.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-crystalcove.c b/drivers/gpio/gpio-crystalcove.c index 5a909f3c79e8..b55c74a5e064 100644 --- a/drivers/gpio/gpio-crystalcove.c +++ b/drivers/gpio/gpio-crystalcove.c @@ -370,7 +370,14 @@ static int crystalcove_gpio_probe(struct platform_device *pdev) return retval; } - return devm_gpiochip_add_data(&pdev->dev, &cg->chip, cg); + retval = devm_gpiochip_add_data(&pdev->dev, &cg->chip, cg); + if (retval) + return retval; + + /* Distuingish IRQ domain from others sharing (MFD) the same fwnode */ + irq_domain_update_bus_token(cg->chip.irq.domain, DOMAIN_BUS_WIRED); + + return 0; } static struct platform_driver crystalcove_gpio_driver = {