From patchwork Fri Jun 21 12:24:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 806921 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6B01A1514FF for ; Fri, 21 Jun 2024 12:26:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718972765; cv=none; b=uN21ZziKDAU2MyPpRDK5ofrYeaFiyemIHOOaaJQt5N9jWwemvjHXKM/snyeB2yKd/p8k/xKVDUSCiC8hlUKA7aLlOfCSYydcxyAwTTM+jQ8U81KRmpz5jzkf26l3IqVa68IHQe6NjtDEors4498gV4ZEB8FHm/KmI6mSVTSa/jQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718972765; c=relaxed/simple; bh=5zQtHHEySJrpIHG82D6ki2OwG6KBFQm58fIYJBGhuVY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=i2L3XkNePmCRbl0JwLrMENZ1Lf4jmDZrG/3kd44FM84vv0YqRLI3D43gkI1l8nyTBC1jTAFde/+IZprAoO8ObbiSfoh9oNi7sJ3mGrtvi6D1ZmSj/LJAtYzMtfXAnKZ3LEOXg1QvOnL9zWFpnVAzIS5D5MPmZEPdrCoi5EfZ7Ro= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=aVSvfytw; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="aVSvfytw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1718972763; 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=xZgONObBZJffcLWVJq2vpGlbmD97vuv/2ZnFqkIiFGQ=; b=aVSvfytwaq69kUR3R+fPMHeD7EFvwDIXqlSZ/R+vBYrLwqpcDsahgBN6AuBJY58rBq4htT iUnV2dy7ZGyqqFOq7RPSrV6a2YFPz+3z/tLPiev8G/5uzAJLGTJ8vQKbt8r17SlBM7Jerf RbnAFW0kOBx0NDgWiwCXhqZ1sv+ChZs= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-616-n771SOZxPHicxhsxLcz6ew-1; Fri, 21 Jun 2024 08:25:53 -0400 X-MC-Unique: n771SOZxPHicxhsxLcz6ew-1 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 7960F1953976; Fri, 21 Jun 2024 12:25:49 +0000 (UTC) Received: from shalem.redhat.com (unknown [10.39.194.69]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id C31103000603; Fri, 21 Jun 2024 12:25:45 +0000 (UTC) From: Hans de Goede To: =?utf-8?q?Pali_Roh=C3=A1r?= , =?utf-8?q?Ilpo_J=C3=A4rvi?= =?utf-8?q?nen?= , Andy Shevchenko , Paul Menzel , Wolfram Sang Cc: Hans de Goede , eric.piel@tremplin-utc.net, Marius Hoch , Dell.Client.Kernel@dell.com, Kai Heng Feng , platform-driver-x86@vger.kernel.org, Jean Delvare , Andi Shyti , linux-i2c@vger.kernel.org Subject: [PATCH v3 4/6] platform/x86: dell-smo8800: Allow lis3lv02d i2c_client instantiation without IRQ Date: Fri, 21 Jun 2024 14:24:59 +0200 Message-ID: <20240621122503.10034-5-hdegoede@redhat.com> In-Reply-To: <20240621122503.10034-1-hdegoede@redhat.com> References: <20240621122503.10034-1-hdegoede@redhat.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 The Dell XPS 15 9550 can have a 60Wh battery, leaving space for a 2.5" sata disk; or a 90Wh battery in which case the battery occupies the space for the optional 2.5" sata disk. On models with the 90Wh battery and thus without a 2.5" sata disk, the BIOS does not add an IRQ resource to the SMO8810 ACPI device. Make the misc-device registration and the requesting of the IRQ optional and instantiate a lis3lv02d i2c_client independent of the IRQ being there, so that the non freefall lis3lv02d functionality can still be used. Note that IRQ 0 is not a valid IRQ number for platform IRQs and this patch relies on that. Signed-off-by: Hans de Goede --- drivers/platform/x86/dell/dell-smo8800.c | 67 +++++++++++++----------- 1 file changed, 37 insertions(+), 30 deletions(-) diff --git a/drivers/platform/x86/dell/dell-smo8800.c b/drivers/platform/x86/dell/dell-smo8800.c index cd2e48405859..2e49bbb569c6 100644 --- a/drivers/platform/x86/dell/dell-smo8800.c +++ b/drivers/platform/x86/dell/dell-smo8800.c @@ -310,33 +310,32 @@ static int smo8800_probe(struct platform_device *device) init_waitqueue_head(&smo8800->misc_wait); INIT_WORK(&smo8800->i2c_work, smo8800_instantiate_i2c_client); - err = misc_register(&smo8800->miscdev); - if (err) { - dev_err(&device->dev, "failed to register misc dev: %d\n", err); - return err; + err = platform_get_irq_optional(device, 0); + if (err > 0) + smo8800->irq = err; + + if (smo8800->irq) { + err = misc_register(&smo8800->miscdev); + if (err) { + dev_err(&device->dev, "failed to register misc dev: %d\n", err); + return err; + } + + err = request_threaded_irq(smo8800->irq, smo8800_interrupt_quick, + smo8800_interrupt_thread, + IRQF_TRIGGER_RISING | IRQF_ONESHOT, + DRIVER_NAME, smo8800); + if (err) { + dev_err(&device->dev, + "failed to request thread for IRQ %d: %d\n", + smo8800->irq, err); + goto error; + } + + dev_dbg(&device->dev, "device /dev/freefall registered with IRQ %d\n", + smo8800->irq); } - platform_set_drvdata(device, smo8800); - - err = platform_get_irq(device, 0); - if (err < 0) - goto error; - smo8800->irq = err; - - err = request_threaded_irq(smo8800->irq, smo8800_interrupt_quick, - smo8800_interrupt_thread, - IRQF_TRIGGER_RISING | IRQF_ONESHOT, - DRIVER_NAME, smo8800); - if (err) { - dev_err(&device->dev, - "failed to request thread for IRQ %d: %d\n", - smo8800->irq, err); - goto error; - } - - dev_dbg(&device->dev, "device /dev/freefall registered with IRQ %d\n", - smo8800->irq); - if (dmi_check_system(smo8800_lis3lv02d_devices)) { /* * Register i2c-bus notifier + queue initial scan for lis3lv02d @@ -350,14 +349,20 @@ static int smo8800_probe(struct platform_device *device) } else { dev_warn(&device->dev, "lis3lv02d accelerometer is present on SMBus but its address is unknown, skipping registration\n"); + if (!smo8800->irq) + return -ENODEV; } + platform_set_drvdata(device, smo8800); return 0; error_free_irq: - free_irq(smo8800->irq, smo8800); + if (smo8800->irq) { + free_irq(smo8800->irq, smo8800); error: - misc_deregister(&smo8800->miscdev); + misc_deregister(&smo8800->miscdev); + } + return err; } @@ -371,9 +376,11 @@ static void smo8800_remove(struct platform_device *device) i2c_unregister_device(smo8800->i2c_dev); } - free_irq(smo8800->irq, smo8800); - misc_deregister(&smo8800->miscdev); - dev_dbg(&device->dev, "device /dev/freefall unregistered\n"); + if (smo8800->irq) { + free_irq(smo8800->irq, smo8800); + misc_deregister(&smo8800->miscdev); + dev_dbg(&device->dev, "device /dev/freefall unregistered\n"); + } } static const struct acpi_device_id smo8800_ids[] = {