From mboxrd@z Thu Jan 1 00:00:00 1970 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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 79069C43219 for ; Mon, 29 Apr 2019 10:13:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4930420656 for ; Mon, 29 Apr 2019 10:13:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727856AbfD2KNJ (ORCPT ); Mon, 29 Apr 2019 06:13:09 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:52572 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727428AbfD2KNI (ORCPT ); Mon, 29 Apr 2019 06:13:08 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 652D680D; Mon, 29 Apr 2019 03:13:07 -0700 (PDT) Received: from [10.1.196.92] (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E13DA3F5AF; Mon, 29 Apr 2019 03:13:04 -0700 (PDT) Subject: Re: [PATCH v7 11/14] irqchip: ti-sci-inta: Add support for Interrupt Aggregator driver To: Lokesh Vutla , Santosh Shilimkar , Rob Herring , Nishanth Menon , tglx@linutronix.de, jason@lakedaemon.net Cc: Linux ARM Mailing List , linux-kernel@vger.kernel.org, Tero Kristo , Sekhar Nori , Tony Lindgren , linus.walleij@linaro.org, Peter Ujfalusi , Grygorii Strashko , Device Tree Mailing List References: <20190420100950.7997-1-lokeshvutla@ti.com> <20190420100950.7997-12-lokeshvutla@ti.com> <79b34c45-023b-2df4-26f4-e151e74a46ac@arm.com> <7d012633-e540-df8f-7c21-07702447cb8a@ti.com> From: Marc Zyngier Openpgp: preference=signencrypt Autocrypt: addr=marc.zyngier@arm.com; prefer-encrypt=mutual; keydata= mQINBE6Jf0UBEADLCxpix34Ch3kQKA9SNlVQroj9aHAEzzl0+V8jrvT9a9GkK+FjBOIQz4KE g+3p+lqgJH4NfwPm9H5I5e3wa+Scz9wAqWLTT772Rqb6hf6kx0kKd0P2jGv79qXSmwru28vJ t9NNsmIhEYwS5eTfCbsZZDCnR31J6qxozsDHpCGLHlYym/VbC199Uq/pN5gH+5JHZyhyZiNW ozUCjMqC4eNW42nYVKZQfbj/k4W9xFfudFaFEhAf/Vb1r6F05eBP1uopuzNkAN7vqS8XcgQH qXI357YC4ToCbmqLue4HK9+2mtf7MTdHZYGZ939OfTlOGuxFW+bhtPQzsHiW7eNe0ew0+LaL 3wdNzT5abPBscqXWVGsZWCAzBmrZato+Pd2bSCDPLInZV0j+rjt7MWiSxEAEowue3IcZA++7 ifTDIscQdpeKT8hcL+9eHLgoSDH62SlubO/y8bB1hV8JjLW/jQpLnae0oz25h39ij4ijcp8N t5slf5DNRi1NLz5+iaaLg4gaM3ywVK2VEKdBTg+JTg3dfrb3DH7ctTQquyKun9IVY8AsxMc6 lxl4HxrpLX7HgF10685GG5fFla7R1RUnW5svgQhz6YVU33yJjk5lIIrrxKI/wLlhn066mtu1 DoD9TEAjwOmpa6ofV6rHeBPehUwMZEsLqlKfLsl0PpsJwov8TQARAQABtCNNYXJjIFp5bmdp ZXIgPG1hcmMuenluZ2llckBhcm0uY29tPokCOwQTAQIAJQIbAwYLCQgHAwIGFQgCCQoLBBYC AwECHgECF4AFAk6NvYYCGQEACgkQI9DQutE9ekObww/+NcUATWXOcnoPflpYG43GZ0XjQLng LQFjBZL+CJV5+1XMDfz4ATH37cR+8gMO1UwmWPv5tOMKLHhw6uLxGG4upPAm0qxjRA/SE3LC 22kBjWiSMrkQgv5FDcwdhAcj8A+gKgcXBeyXsGBXLjo5UQOGvPTQXcqNXB9A3ZZN9vS6QUYN TXFjnUnzCJd+PVI/4jORz9EUVw1q/+kZgmA8/GhfPH3xNetTGLyJCJcQ86acom2liLZZX4+1 6Hda2x3hxpoQo7pTu+XA2YC4XyUstNDYIsE4F4NVHGi88a3N8yWE+Z7cBI2HjGvpfNxZnmKX 6bws6RQ4LHDPhy0yzWFowJXGTqM/e79c1UeqOVxKGFF3VhJJu1nMlh+5hnW4glXOoy/WmDEM UMbl9KbJUfo+GgIQGMp8mwgW0vK4HrSmevlDeMcrLdfbbFbcZLNeFFBn6KqxFZaTd+LpylIH bOPN6fy1Dxf7UZscogYw5Pt0JscgpciuO3DAZo3eXz6ffj2NrWchnbj+SpPBiH4srfFmHY+Y LBemIIOmSqIsjoSRjNEZeEObkshDVG5NncJzbAQY+V3Q3yo9og/8ZiaulVWDbcpKyUpzt7pv cdnY3baDE8ate/cymFP5jGJK++QCeA6u6JzBp7HnKbngqWa6g8qDSjPXBPCLmmRWbc5j0lvA 6ilrF8m5Ag0ETol/RQEQAM/2pdLYCWmf3rtIiP8Wj5NwyjSL6/UrChXtoX9wlY8a4h3EX6E3 64snIJVMLbyr4bwdmPKULlny7T/R8dx/mCOWu/DztrVNQiXWOTKJnd/2iQblBT+W5W8ep/nS w3qUIckKwKdplQtzSKeE+PJ+GMS+DoNDDkcrVjUnsoCEr0aK3cO6g5hLGu8IBbC1CJYSpple VVb/sADnWF3SfUvJ/l4K8Uk4B4+X90KpA7U9MhvDTCy5mJGaTsFqDLpnqp/yqaT2P7kyMG2E w+eqtVIqwwweZA0S+tuqput5xdNAcsj2PugVx9tlw/LJo39nh8NrMxAhv5aQ+JJ2I8UTiHLX QvoC0Yc/jZX/JRB5r4x4IhK34Mv5TiH/gFfZbwxd287Y1jOaD9lhnke1SX5MXF7eCT3cgyB+ hgSu42w+2xYl3+rzIhQqxXhaP232t/b3ilJO00ZZ19d4KICGcakeiL6ZBtD8TrtkRiewI3v0 o8rUBWtjcDRgg3tWx/PcJvZnw1twbmRdaNvsvnlapD2Y9Js3woRLIjSAGOijwzFXSJyC2HU1 AAuR9uo4/QkeIrQVHIxP7TJZdJ9sGEWdeGPzzPlKLHwIX2HzfbdtPejPSXm5LJ026qdtJHgz BAb3NygZG6BH6EC1NPDQ6O53EXorXS1tsSAgp5ZDSFEBklpRVT3E0NrDABEBAAGJAh8EGAEC AAkFAk6Jf0UCGwwACgkQI9DQutE9ekMLBQ//U+Mt9DtFpzMCIHFPE9nNlsCm75j22lNiw6mX mx3cUA3pl+uRGQr/zQC5inQNtjFUmwGkHqrAw+SmG5gsgnM4pSdYvraWaCWOZCQCx1lpaCOl MotrNcwMJTJLQGc4BjJyOeSH59HQDitKfKMu/yjRhzT8CXhys6R0kYMrEN0tbe1cFOJkxSbV 0GgRTDF4PKyLT+RncoKxQe8lGxuk5614aRpBQa0LPafkirwqkUtxsPnarkPUEfkBlnIhAR8L kmneYLu0AvbWjfJCUH7qfpyS/FRrQCoBq9QIEcf2v1f0AIpA27f9KCEv5MZSHXGCdNcbjKw1 39YxYZhmXaHFKDSZIC29YhQJeXWlfDEDq6nIhvurZy3mSh2OMQgaIoFexPCsBBOclH8QUtMk a3jW/qYyrV+qUq9Wf3SKPrXf7B3xB332jFCETbyZQXqmowV+2b3rJFRWn5hK5B+xwvuxKyGq qDOGjof2dKl2zBIxbFgOclV7wqCVkhxSJi/QaOj2zBqSNPXga5DWtX3ekRnJLa1+ijXxmdjz hApihi08gwvP5G9fNGKQyRETePEtEAWt0b7dOqMzYBYGRVr7uS4uT6WP7fzOwAJC4lU7ZYWZ yVshCa0IvTtp1085RtT3qhh9mobkcZ+7cQOY+Tx2RGXS9WeOh2jZjdoWUv6CevXNQyOUXMM= Organization: ARM Ltd Message-ID: <3723e553-4e04-4ce4-080b-01f1a9843ea8@arm.com> Date: Mon, 29 Apr 2019 11:13:02 +0100 User-Agent: Mozilla/5.0 (X11; Linux aarch64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <7d012633-e540-df8f-7c21-07702447cb8a@ti.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 29/04/2019 09:59, Lokesh Vutla wrote: > > > On 29/04/19 2:17 PM, Marc Zyngier wrote: >> On 23/04/2019 11:00, Lokesh Vutla wrote: >>> Hi Marc, >> >> [...] >> >>>> +/** >>>> + * ti_sci_inta_set_type() - Update the trigger type of the irq. >>>> + * @data: Pointer to corresponding irq_data >>>> + * @type: Trigger type as specified by user >>>> + * >>>> + * Note: This updates the handle_irq callback for level msi. >>>> + * >>>> + * Return 0 if all went well else appropriate error. >>>> + */ >>>> +static int ti_sci_inta_set_type(struct irq_data *data, unsigned int type) >>>> +{ >>>> + struct irq_desc *desc = irq_to_desc(data->irq); >>>> + >>>> + /* >>>> + * .alloc default sets handle_edge_irq. But if the user specifies >>>> + * that IRQ is level MSI, then update the handle to handle_level_irq >>>> + */ >>>> + if (type & IRQF_TRIGGER_HIGH) >>>> + desc->handle_irq = handle_level_irq; >>>> + >>>> + return 0; >>> >>> >>> Returning error value is causing request_irq to fail, so still returning 0. Do >>> you suggest any other method to handle this? >> >> But that is the very point, isn't it? If you pass the wrong triggering >> type to request_irq, it *must* fail. What you should have is something like: >> >> switch (type & IRQ_TYPE_SENSE_MASK) { >> case IRQF_TRIGGER_HIGH: >> desc->handle_irq = handle_level_irq; >> return 0; >> case IRQ_TYPE_EDGE_RISING: >> return 0; >> default: >> return -EINVAL; >> } >> >> (adjust as necessary). >> >> What's wrong with this? > > I get it. Will fix it in next version. I also got the firmware update as well. > If you are okay with rest of the series, I want to post the next version with > the firmware update. Then post it now, and I'll review that. I'd rather look at the latest than providing feedback on something that has already changed. Thanks, M. -- Jazz is not dead. It just smells funny... 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Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hL3Hb-0007zQ-IJ; Mon, 29 Apr 2019 10:13:11 +0000 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70] helo=foss.arm.com) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hL3HY-0007xu-Fs for linux-arm-kernel@lists.infradead.org; Mon, 29 Apr 2019 10:13:09 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 652D680D; Mon, 29 Apr 2019 03:13:07 -0700 (PDT) Received: from [10.1.196.92] (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E13DA3F5AF; Mon, 29 Apr 2019 03:13:04 -0700 (PDT) Subject: Re: [PATCH v7 11/14] irqchip: ti-sci-inta: Add support for Interrupt Aggregator driver To: Lokesh Vutla , Santosh Shilimkar , Rob Herring , Nishanth Menon , tglx@linutronix.de, jason@lakedaemon.net References: <20190420100950.7997-1-lokeshvutla@ti.com> <20190420100950.7997-12-lokeshvutla@ti.com> <79b34c45-023b-2df4-26f4-e151e74a46ac@arm.com> <7d012633-e540-df8f-7c21-07702447cb8a@ti.com> From: Marc Zyngier Openpgp: preference=signencrypt Autocrypt: addr=marc.zyngier@arm.com; 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Linux aarch64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <7d012633-e540-df8f-7c21-07702447cb8a@ti.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190429_031308_537035_4C038992 X-CRM114-Status: GOOD ( 18.53 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Ujfalusi , Grygorii Strashko , Device Tree Mailing List , Tony Lindgren , linus.walleij@linaro.org, Sekhar Nori , linux-kernel@vger.kernel.org, Tero Kristo , Linux ARM Mailing List Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 29/04/2019 09:59, Lokesh Vutla wrote: > > > On 29/04/19 2:17 PM, Marc Zyngier wrote: >> On 23/04/2019 11:00, Lokesh Vutla wrote: >>> Hi Marc, >> >> [...] >> >>>> +/** >>>> + * ti_sci_inta_set_type() - Update the trigger type of the irq. >>>> + * @data: Pointer to corresponding irq_data >>>> + * @type: Trigger type as specified by user >>>> + * >>>> + * Note: This updates the handle_irq callback for level msi. >>>> + * >>>> + * Return 0 if all went well else appropriate error. >>>> + */ >>>> +static int ti_sci_inta_set_type(struct irq_data *data, unsigned int type) >>>> +{ >>>> + struct irq_desc *desc = irq_to_desc(data->irq); >>>> + >>>> + /* >>>> + * .alloc default sets handle_edge_irq. But if the user specifies >>>> + * that IRQ is level MSI, then update the handle to handle_level_irq >>>> + */ >>>> + if (type & IRQF_TRIGGER_HIGH) >>>> + desc->handle_irq = handle_level_irq; >>>> + >>>> + return 0; >>> >>> >>> Returning error value is causing request_irq to fail, so still returning 0. Do >>> you suggest any other method to handle this? >> >> But that is the very point, isn't it? If you pass the wrong triggering >> type to request_irq, it *must* fail. What you should have is something like: >> >> switch (type & IRQ_TYPE_SENSE_MASK) { >> case IRQF_TRIGGER_HIGH: >> desc->handle_irq = handle_level_irq; >> return 0; >> case IRQ_TYPE_EDGE_RISING: >> return 0; >> default: >> return -EINVAL; >> } >> >> (adjust as necessary). >> >> What's wrong with this? > > I get it. Will fix it in next version. I also got the firmware update as well. > If you are okay with rest of the series, I want to post the next version with > the firmware update. Then post it now, and I'll review that. I'd rather look at the latest than providing feedback on something that has already changed. Thanks, M. -- Jazz is not dead. It just smells funny... _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel