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=-6.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 BF60BC41604 for ; Tue, 6 Oct 2020 06:28:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4ED9C20796 for ; Tue, 6 Oct 2020 06:28:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="YsDHSUVt" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726761AbgJFG2s (ORCPT ); Tue, 6 Oct 2020 02:28:48 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:49325 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725962AbgJFG2r (ORCPT ); Tue, 6 Oct 2020 02:28:47 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1601965725; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=B1QwREq0y9kxw73/YPlBeF9wLu9Bg4SvS+ntbKXf8ro=; b=YsDHSUVtlRq6G8a49qkc3jACS9S99UAKsDZmT7riDvN/bDevvJM0UoworXJI9Wxx9T/kwQ 7CCPlrjzIWjAX1JAkRoHWf4be8sWWai5qQlnbZicIIZTxizoC/o++7oDCAF17ks+N4KQkZ GTdp9OeZbazOwKdXXjULlCbnEMZpY0A= Received: from mail-ed1-f72.google.com (mail-ed1-f72.google.com [209.85.208.72]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-123-hyQU1Ay2Onu4OJ8iv0ZQDQ-1; Tue, 06 Oct 2020 02:28:44 -0400 X-MC-Unique: hyQU1Ay2Onu4OJ8iv0ZQDQ-1 Received: by mail-ed1-f72.google.com with SMTP id f19so5302427edx.18 for ; Mon, 05 Oct 2020 23:28:43 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=B1QwREq0y9kxw73/YPlBeF9wLu9Bg4SvS+ntbKXf8ro=; b=eeR/5x1ee0+yVx74iXmfXqtg5GJmYhyXKJZZIhVzbOpU1yjhOxbkxQ/aueThMGkHjU QsJMpvVH1gztCy8/soFXJCL9WhG4XS8rix7WRkvVW+fv6sq14SwBufietvjhysdxpu1w cXJCiUpV+kbp7fvOKKbVIksEq2MZRnZxwsAtWhYIamOgmsWw2ixbMfK8zugPkdxfhQAm km+cVJT/i4KnlAfbixuZBH4Eak3Edz3DXbZA+ABPX7DLgL9LSHzlr5nQgvpFqMMGMgQq NFveHPNlNK9lQfAQKhsLSCcGlmC7hoYRvqGgZMCUGprtyIIrDP2HujM3M5TA5ZKKVwxR 2tQg== X-Gm-Message-State: AOAM531/A0iB30lwraG1B9bvXjHk0DoTchE7hE1qJBqjw77x/BJ9a2N4 k4dEgHiKjmkCoGcKz5+jbdZWP+gfkvipxCKTSJ29ZNeQUB3zwVpgRVyDMN54QiWXxhO++NJxEWo 5v4nyb1Lcph6ZUR/pTZZX5g== X-Received: by 2002:a17:907:104f:: with SMTP id oy15mr3650537ejb.261.1601965722749; Mon, 05 Oct 2020 23:28:42 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxyZS3P6Oh+XRK/p67YJIRT/oRsPUdOV2clxFth3LomOFXoGdgoONHKeMpo/z/uma3nEj/N3Q== X-Received: by 2002:a17:907:104f:: with SMTP id oy15mr3650511ejb.261.1601965722442; Mon, 05 Oct 2020 23:28:42 -0700 (PDT) Received: from x1.localdomain (2001-1c00-0c0c-fe00-d2ea-f29d-118b-24dc.cable.dynamic.v6.ziggo.nl. [2001:1c00:c0c:fe00:d2ea:f29d:118b:24dc]) by smtp.gmail.com with ESMTPSA id t4sm1385333ejj.6.2020.10.05.23.28.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 05 Oct 2020 23:28:41 -0700 (PDT) Subject: Re: Any other ways to debug GPIO interrupt controller (pinctrl-amd) for broken touchpads of a new laptop model? To: Coiby Xu , Linus Walleij Cc: "open list:GPIO SUBSYSTEM" , wang jun , Nehal Shah , Shyam Sundar S K , linux-kernel-mentees@lists.linuxfoundation.org References: <3ded544f-be1b-8dc4-16b7-42172b1e1b08@redhat.com> <20201002124235.nhjzq7i4gpkzwgbs@Rk> <39f03cfe-0e7f-2ab6-7821-048cfcde8baa@redhat.com> <20201002145133.a43ypm2z7ofgtt7u@Rk> <20201002224502.vn3ooodrxrblwauu@Rk> <34cecd8e-ffa7-c2bc-8ce3-575db47ff455@redhat.com> <20201003230340.42mtl35n4ka4d5qw@Rk> <20201004051644.f3fg2oavbobrwhf6@Rk> <20201006044941.fdjsp346kc5thyzy@Rk> From: Hans de Goede Message-ID: Date: Tue, 6 Oct 2020 08:28:40 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20201006044941.fdjsp346kc5thyzy@Rk> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Hi, On 10/6/20 6:49 AM, Coiby Xu wrote: > Hi Hans and Linus, > > I've found the direct evidence proving the GPIO interrupt controller is > malfunctioning. > > I've found a way to let the GPIO chip trigger an interrupt by accident > when playing with the GPIO sysfs interface, > >  - export pin130 which is used by the touchad >  - set the direction to be "out" >  - `echo 0 > value` will trigger the GPIO controller's parent irq and >    "echo 1 > value" will make it stop firing > > (I'm not sure if this is yet another bug of the GPIO chip. Anyway I can > manually trigger an interrupt now.) > > I wrote a C program is to let GPIO controller quickly generate some > interrupts then disable the firing of interrupts by toggling pin#130's > value with an specified time interval, i.e., set the value to 0 first > and then after some time, re-set the value to 1. There is no interrupt > firing unless time internal > 120ms (~7Hz). This explains why we can > only see 7 interrupts for the GPIO controller's parent irq. That is a great find, well done. > My hypothesis is the GPIO doesn't have proper power setting so it stays > in an idle state or its clock frequency is too low by default thus not > quick enough to read interrupt input. Then pinctrl-amd must miss some > code to configure the chip and I need a hardware reference manual of this > GPIO chip (HID: AMDI0030) or reverse-engineer the driver for Windows > since I couldn't find a copy of reference manual online? What would you > suggest? This sounds like it might have something to do with the glitch filter. The code in pinctrl-amd.c to setup the trigger-type also configures the glitch filter, you could try changing that code to disable the glitch-filter. The defines for setting the glitch-filter bits to disabled are already there. Regards, Hans > > Thank you! > > On Sun, Oct 04, 2020 at 01:16:44PM +0800, Coiby Xu wrote: >> On Sun, Oct 04, 2020 at 07:03:40AM +0800, Coiby Xu wrote: >>> On Sat, Oct 03, 2020 at 03:22:46PM +0200, Hans de Goede wrote: >>>> Hi, >>>> >>>> On 10/3/20 12:45 AM, Coiby Xu wrote: >>>>> On Fri, Oct 02, 2020 at 09:44:54PM +0200, Hans de Goede wrote: >>>>>> Hi, >>>>>> >>>>>> On 10/2/20 4:51 PM, Coiby Xu wrote: >>>>>>> On Fri, Oct 02, 2020 at 03:36:29PM +0200, Hans de Goede wrote: >>>>>> >>>>>> >>>>>> >>>>>>>>>> So are you seeing these 7 interrupts / second for the touchpad irq or for >>>>>>>>>> the GPIO controllers parent irq ? >>>>>>>>>> >>>>>>>>>> Also to these 7 interrupts/sec stop happening when you do not touch the >>>>>>>>>> touchpad ? >>>>>>>>>> >>>>>>>>> I see these 7 interrupts / second for the GPIO controller's parent irq. >>>>>>>>> And they stop happening when I don't touch the touchpad. >>>>>>>> >>>>>>>> Only from the parent irq, or also on the touchpad irq itself ? >>>>>>>> >>>>>>>> If this only happens on the parent irq, then I would start looking at the >>>>>>>> amd-pinctrl code which determines which of its "child" irqs to fire. >>>>>>> >>>>>>> This only happens on the parent irq. The input's pin#130 of the GIPO >>>>>>> chip is low most of the time and pin#130. >>>>>> >>>>>> Right, but it is a low-level triggered IRQ, so when it is low it should >>>>>> be executing the i2c-hid interrupt-handler. If it is not executing that >>>>>> then it is time to look at amd-pinctrl's irq-handler and figure out why >>>>>> that is not triggering the child irq handler for the touchpad. >>>>>> >>>>> I'm not sure if I have some incorrect understandings about GPIO >>>>> interrupt controller because I don't quite follow your reasoning. >>>>> What I actually suspect is there's something wrong with amd-pinctrl >>>>> which makes the GPIO chip fail to assert its common interrupt output >>>>> line connected to one IO-APIC's pin#7 thus IRQ#7 fails to fire. What >>>>> I learn about this low-level triggered IRQ is that the i2c-hid >>>>> interrupt-handler will be woken up by amd-pinctrl's irq-handler which >>>>> is executed when the parent IRQ#7 fires. The code path is as follows, >>>>> >>>>>     >>>>>     dump_stack+0x64/0x88 >>>>>     __irq_wake_thread.cold+0x9/0x12 >>>>>     __handle_irq_event_percpu+0x80/0x1c0 >>>>>     handle_irq_event+0x58/0xb0 >>>>>     handle_level_irq+0xb7/0x1a0 >>>>>     generic_handle_irq+0x4a/0x60 >>>>>     amd_gpio_irq_handler+0x15f/0x1b0 [pinctrl_amd] >>>>>     __handle_irq_event_percpu+0x45/0x1c0 >>>>>     handle_irq_event+0x58/0xb0 >>>>>     handle_fasteoi_irq+0xa2/0x210 >>>>>     do_IRQ+0x70/0x120 >>>>>     common_interrupt+0xf/0xf >>>>>     >>>>> >>>>> But the problem is somehow IRQ#7 doesn't even fire when the input's >>>>> pin#130 of the GIPO is low. Without IRQ#7 firing, amd-pinctrl's >>>>> irq-handler wouldn't be executed in the first place, let alonet >>>>> triggering the child irq handler. Btw, amd-pinctrl's irq-handler >>>>> simply iterate over all pins. If there is mapped irq found for this >>>>> hwirq (yes, it won't even check if this pin triggers the interrupt), >>>>> then it will call generic_handle_irq. So there's nothing wrong about >>>>> this part of code. >>>> >>>> Ok, so the i2c-hid irq does fire, but only 7 times a second just >>>> like the GPIO controller's parent irq. >>>> >>> I'm not sure if it's correct to say if hi2c-hid irq fires or not and how >>> frequently it fires since the i2c-hid irq is mapped to pin#130 of the >>> GPIO interrupt controller and the touchpad has another interrupt line >>> connected to pin#130 which fires to indicate new data. All we know is >>> pin#130 of the GPIO chip has low input most of the time when the finger >>> is on the touchpad so we can infer the touchpad has been trying to >>> notify the kernel of new data but somehow GPIO's parent irq only fires 7 >>> times / second. >>> >>>> The only thing I can think of then is to add printk-s to check how >>>> long the i2c-hid interrupt handler takes to complete. It could be >>>> there is a subtle bug somewhere causing the i2c transfers to take >>>> longer when run from a (threaded) irq handler. That would be weird >>>> though, so I don't expect this to result in any useful findings. >>>> >>> >>> I also doubted if it takes too much time for the i2c-hid handler to >>> finish reading i2c transfer, processing data and delivering to the input >>> system. After measuring the time internal between the starting of the >>> GPIO irq's parent handler and when pin#130 is unmasked, we can exclude >>> this possibility. >>> >>> I have been wondering if we let make pin#130 have low input thus to >>> trigger a interrupt firing or assert the GPIO's common interrupt output >>> line manually thus we can measure how long does it take for the kernel >>> to receive the signal. But once GPIO's pin is programmed to be a >>> interrupt line we can't write anything to it and it seems other >>> interrupts can only be generated by the hardware. So this idea is not >>> plausible >>> >> >> Btw, there are other users who have the same laptop model but with a >> different touchpad (ELAN). Their touchpads would show in >> /proc/bus/input/devices but are completely dead. hid-recorder which >> will read HID reports from /dev/hidraw gets nothing if they put there >> fingers on the touchpad but the polling mode could also save their >> touchpads. It seems GPIO controller's parent irq for the ELAN touchpad >> doesn't even fire once. And unlike GPIO, IO-APIC has also be used by >> other devices like the keyboard. So maybe it's safe to assert the root >> cause is from the GPIO controller. >> >>>> Other then that I'm all out of ideas I'm afraid. >>>> >>> Thank you for taking time to investigate this issue anyway! Have a nice >>> weekend:) >>>> Regards, >>>> >>>> Hans >>>> >>> >>> -- >>> Best regards, >>> Coiby >> >> -- >> Best regards, >> Coiby > > -- > Best regards, > Coiby > 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=-5.1 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 07C97C41604 for ; Tue, 6 Oct 2020 06:28:52 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7B0D2206DD for ; Tue, 6 Oct 2020 06:28:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="YsDHSUVt" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7B0D2206DD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linux-kernel-mentees-bounces@lists.linuxfoundation.org Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 1FB8F83507; Tue, 6 Oct 2020 06:28:51 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id aqamDfjitS2d; Tue, 6 Oct 2020 06:28:50 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by fraxinus.osuosl.org (Postfix) with ESMTP id 564E6834D8; Tue, 6 Oct 2020 06:28:50 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 3E691C016F; Tue, 6 Oct 2020 06:28:50 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 73A61C0051 for ; Tue, 6 Oct 2020 06:28:49 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id 6E78986C94 for ; Tue, 6 Oct 2020 06:28:49 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id W2RvCfBA3hrt for ; Tue, 6 Oct 2020 06:28:47 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [63.128.21.124]) by hemlock.osuosl.org (Postfix) with ESMTPS id 344B386C1D for ; Tue, 6 Oct 2020 06:28:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1601965725; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=B1QwREq0y9kxw73/YPlBeF9wLu9Bg4SvS+ntbKXf8ro=; b=YsDHSUVtlRq6G8a49qkc3jACS9S99UAKsDZmT7riDvN/bDevvJM0UoworXJI9Wxx9T/kwQ 7CCPlrjzIWjAX1JAkRoHWf4be8sWWai5qQlnbZicIIZTxizoC/o++7oDCAF17ks+N4KQkZ GTdp9OeZbazOwKdXXjULlCbnEMZpY0A= Received: from mail-ed1-f69.google.com (mail-ed1-f69.google.com [209.85.208.69]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-120-epnWJBGmOSC99KzE_epIQQ-1; Tue, 06 Oct 2020 02:28:44 -0400 X-MC-Unique: epnWJBGmOSC99KzE_epIQQ-1 Received: by mail-ed1-f69.google.com with SMTP id j1so5669944edv.7 for ; Mon, 05 Oct 2020 23:28:44 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=B1QwREq0y9kxw73/YPlBeF9wLu9Bg4SvS+ntbKXf8ro=; b=MLTamEIf0+xYhK3ypuxkMVcWdbMERraZnxtCml59OqiYvKeWnOCrd1wNfi2XVr7/cl 1yA1aXecr1ALiNTtyr8QAObsSM/bL9q8wKnvd3hDqtgXNtFIxlBhoRv9YtkKMiPsUMxK nw2dv881am0sjQK0eFweghlbEnqTxZCd7hhPn9cMc26yyhhQ6A6tazDkPjn7L3M5NgEI b5ndsFREUsSsa7UyZHNc320bVSyQ6iYxmzIxmJ1c7wEVrMW9Ck4zqmo86/GSaGH5JM2G 02jNCmJJRcdbpcz6Zk7Wbu3jjUYW57+kra8PQgr2HZukm9WydmR/QZYFJ4tHViVvqxYm 3rlA== X-Gm-Message-State: AOAM53069X7fEZkQz4hzrDIYHd963K4mQ9AiSX5MBzf0oQbbN0hJXHCx LD8Rl+u/JAF/7rPd2kWPRvbvVWsa/lcG9SQkc7g0zoOF3OazIzNMPeGq1Nfmd11ZE5hDPa4/3o9 o/iwEohCbm8JD7R4c30pLg/fQC4JRA+HnpKMm0x486ytCWa3/ X-Received: by 2002:a17:907:104f:: with SMTP id oy15mr3650541ejb.261.1601965722750; Mon, 05 Oct 2020 23:28:42 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxyZS3P6Oh+XRK/p67YJIRT/oRsPUdOV2clxFth3LomOFXoGdgoONHKeMpo/z/uma3nEj/N3Q== X-Received: by 2002:a17:907:104f:: with SMTP id oy15mr3650511ejb.261.1601965722442; Mon, 05 Oct 2020 23:28:42 -0700 (PDT) Received: from x1.localdomain (2001-1c00-0c0c-fe00-d2ea-f29d-118b-24dc.cable.dynamic.v6.ziggo.nl. [2001:1c00:c0c:fe00:d2ea:f29d:118b:24dc]) by smtp.gmail.com with ESMTPSA id t4sm1385333ejj.6.2020.10.05.23.28.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 05 Oct 2020 23:28:41 -0700 (PDT) To: Coiby Xu , Linus Walleij References: <3ded544f-be1b-8dc4-16b7-42172b1e1b08@redhat.com> <20201002124235.nhjzq7i4gpkzwgbs@Rk> <39f03cfe-0e7f-2ab6-7821-048cfcde8baa@redhat.com> <20201002145133.a43ypm2z7ofgtt7u@Rk> <20201002224502.vn3ooodrxrblwauu@Rk> <34cecd8e-ffa7-c2bc-8ce3-575db47ff455@redhat.com> <20201003230340.42mtl35n4ka4d5qw@Rk> <20201004051644.f3fg2oavbobrwhf6@Rk> <20201006044941.fdjsp346kc5thyzy@Rk> From: Hans de Goede Message-ID: Date: Tue, 6 Oct 2020 08:28:40 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20201006044941.fdjsp346kc5thyzy@Rk> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=hdegoede@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Cc: wang jun , "open list:GPIO SUBSYSTEM" , Shyam Sundar S K , Nehal Shah , linux-kernel-mentees@lists.linuxfoundation.org Subject: Re: [Linux-kernel-mentees] Any other ways to debug GPIO interrupt controller (pinctrl-amd) for broken touchpads of a new laptop model? X-BeenThere: linux-kernel-mentees@lists.linuxfoundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: linux-kernel-mentees-bounces@lists.linuxfoundation.org Sender: "Linux-kernel-mentees" SGksCgpPbiAxMC82LzIwIDY6NDkgQU0sIENvaWJ5IFh1IHdyb3RlOgo+IEhpIEhhbnMgYW5kIExp bnVzLAo+IAo+IEkndmUgZm91bmQgdGhlIGRpcmVjdCBldmlkZW5jZSBwcm92aW5nIHRoZSBHUElP IGludGVycnVwdCBjb250cm9sbGVyIGlzCj4gbWFsZnVuY3Rpb25pbmcuCj4gCj4gSSd2ZSBmb3Vu ZCBhIHdheSB0byBsZXQgdGhlIEdQSU8gY2hpcCB0cmlnZ2VyIGFuIGludGVycnVwdCBieSBhY2Np ZGVudAo+IHdoZW4gcGxheWluZyB3aXRoIHRoZSBHUElPIHN5c2ZzIGludGVyZmFjZSwKPiAKPiAg wqAtIGV4cG9ydCBwaW4xMzAgd2hpY2ggaXMgdXNlZCBieSB0aGUgdG91Y2hhZAo+ICDCoC0gc2V0 IHRoZSBkaXJlY3Rpb24gdG8gYmUgIm91dCIKPiAgwqAtIGBlY2hvIDAgPiB2YWx1ZWAgd2lsbCB0 cmlnZ2VyIHRoZSBHUElPIGNvbnRyb2xsZXIncyBwYXJlbnQgaXJxIGFuZAo+ICDCoMKgICJlY2hv IDEgPiB2YWx1ZSIgd2lsbCBtYWtlIGl0IHN0b3AgZmlyaW5nCj4gCj4gKEknbSBub3Qgc3VyZSBp ZiB0aGlzIGlzIHlldCBhbm90aGVyIGJ1ZyBvZiB0aGUgR1BJTyBjaGlwLiBBbnl3YXkgSSBjYW4K PiBtYW51YWxseSB0cmlnZ2VyIGFuIGludGVycnVwdCBub3cuKQo+IAo+IEkgd3JvdGUgYSBDIHBy b2dyYW0gaXMgdG8gbGV0IEdQSU8gY29udHJvbGxlciBxdWlja2x5IGdlbmVyYXRlIHNvbWUKPiBp bnRlcnJ1cHRzIHRoZW4gZGlzYWJsZSB0aGUgZmlyaW5nIG9mIGludGVycnVwdHMgYnkgdG9nZ2xp bmcgcGluIzEzMCdzCj4gdmFsdWUgd2l0aCBhbiBzcGVjaWZpZWQgdGltZSBpbnRlcnZhbCwgaS5l Liwgc2V0IHRoZSB2YWx1ZSB0byAwIGZpcnN0Cj4gYW5kIHRoZW4gYWZ0ZXIgc29tZSB0aW1lLCBy ZS1zZXQgdGhlIHZhbHVlIHRvIDEuIFRoZXJlIGlzIG5vIGludGVycnVwdAo+IGZpcmluZyB1bmxl c3MgdGltZSBpbnRlcm5hbCA+IDEyMG1zICh+N0h6KS4gVGhpcyBleHBsYWlucyB3aHkgd2UgY2Fu Cj4gb25seSBzZWUgNyBpbnRlcnJ1cHRzIGZvciB0aGUgR1BJTyBjb250cm9sbGVyJ3MgcGFyZW50 IGlycS4KClRoYXQgaXMgYSBncmVhdCBmaW5kLCB3ZWxsIGRvbmUuCgo+IE15IGh5cG90aGVzaXMg aXMgdGhlIEdQSU8gZG9lc24ndCBoYXZlIHByb3BlciBwb3dlciBzZXR0aW5nIHNvIGl0IHN0YXlz Cj4gaW4gYW4gaWRsZSBzdGF0ZSBvciBpdHMgY2xvY2sgZnJlcXVlbmN5IGlzIHRvbyBsb3cgYnkg ZGVmYXVsdCB0aHVzIG5vdAo+IHF1aWNrIGVub3VnaCB0byByZWFkIGludGVycnVwdCBpbnB1dC4g VGhlbiBwaW5jdHJsLWFtZCBtdXN0IG1pc3Mgc29tZQo+IGNvZGUgdG8gY29uZmlndXJlIHRoZSBj aGlwIGFuZCBJIG5lZWQgYSBoYXJkd2FyZSByZWZlcmVuY2UgbWFudWFsIG9mIHRoaXMKPiBHUElP IGNoaXAgKEhJRDogQU1ESTAwMzApIG9yIHJldmVyc2UtZW5naW5lZXIgdGhlIGRyaXZlciBmb3Ig V2luZG93cwo+IHNpbmNlIEkgY291bGRuJ3QgZmluZCBhIGNvcHkgb2YgcmVmZXJlbmNlIG1hbnVh bCBvbmxpbmU/IFdoYXQgd291bGQgeW91Cj4gc3VnZ2VzdD8KClRoaXMgc291bmRzIGxpa2UgaXQg bWlnaHQgaGF2ZSBzb21ldGhpbmcgdG8gZG8gd2l0aCB0aGUgZ2xpdGNoIGZpbHRlci4KVGhlIGNv ZGUgaW4gcGluY3RybC1hbWQuYyB0byBzZXR1cCB0aGUgdHJpZ2dlci10eXBlIGFsc28gY29uZmln dXJlcwp0aGUgZ2xpdGNoIGZpbHRlciwgeW91IGNvdWxkIHRyeSBjaGFuZ2luZyB0aGF0IGNvZGUg dG8gZGlzYWJsZSB0aGUKZ2xpdGNoLWZpbHRlci4gVGhlIGRlZmluZXMgZm9yIHNldHRpbmcgdGhl IGdsaXRjaC1maWx0ZXIgYml0cyB0bwpkaXNhYmxlZCBhcmUgYWxyZWFkeSB0aGVyZS4KClJlZ2Fy ZHMsCgpIYW5zCgoKCgo+IAo+IFRoYW5rIHlvdSEKPiAKPiBPbiBTdW4sIE9jdCAwNCwgMjAyMCBh dCAwMToxNjo0NFBNICswODAwLCBDb2lieSBYdSB3cm90ZToKPj4gT24gU3VuLCBPY3QgMDQsIDIw MjAgYXQgMDc6MDM6NDBBTSArMDgwMCwgQ29pYnkgWHUgd3JvdGU6Cj4+PiBPbiBTYXQsIE9jdCAw MywgMjAyMCBhdCAwMzoyMjo0NlBNICswMjAwLCBIYW5zIGRlIEdvZWRlIHdyb3RlOgo+Pj4+IEhp LAo+Pj4+Cj4+Pj4gT24gMTAvMy8yMCAxMjo0NSBBTSwgQ29pYnkgWHUgd3JvdGU6Cj4+Pj4+IE9u IEZyaSwgT2N0IDAyLCAyMDIwIGF0IDA5OjQ0OjU0UE0gKzAyMDAsIEhhbnMgZGUgR29lZGUgd3Jv dGU6Cj4+Pj4+PiBIaSwKPj4+Pj4+Cj4+Pj4+PiBPbiAxMC8yLzIwIDQ6NTEgUE0sIENvaWJ5IFh1 IHdyb3RlOgo+Pj4+Pj4+IE9uIEZyaSwgT2N0IDAyLCAyMDIwIGF0IDAzOjM2OjI5UE0gKzAyMDAs IEhhbnMgZGUgR29lZGUgd3JvdGU6Cj4+Pj4+Pgo+Pj4+Pj4gPHNuaXA+Cj4+Pj4+Pgo+Pj4+Pj4+ Pj4+IFNvIGFyZSB5b3Ugc2VlaW5nIHRoZXNlIDcgaW50ZXJydXB0cyAvIHNlY29uZCBmb3IgdGhl IHRvdWNocGFkIGlycSBvciBmb3IKPj4+Pj4+Pj4+PiB0aGUgR1BJTyBjb250cm9sbGVycyBwYXJl bnQgaXJxID8KPj4+Pj4+Pj4+Pgo+Pj4+Pj4+Pj4+IEFsc28gdG8gdGhlc2UgNyBpbnRlcnJ1cHRz L3NlYyBzdG9wIGhhcHBlbmluZyB3aGVuIHlvdSBkbyBub3QgdG91Y2ggdGhlCj4+Pj4+Pj4+Pj4g dG91Y2hwYWQgPwo+Pj4+Pj4+Pj4+Cj4+Pj4+Pj4+PiBJIHNlZSB0aGVzZSA3IGludGVycnVwdHMg LyBzZWNvbmQgZm9yIHRoZSBHUElPIGNvbnRyb2xsZXIncyBwYXJlbnQgaXJxLgo+Pj4+Pj4+Pj4g QW5kIHRoZXkgc3RvcCBoYXBwZW5pbmcgd2hlbiBJIGRvbid0IHRvdWNoIHRoZSB0b3VjaHBhZC4K Pj4+Pj4+Pj4KPj4+Pj4+Pj4gT25seSBmcm9tIHRoZSBwYXJlbnQgaXJxLCBvciBhbHNvIG9uIHRo ZSB0b3VjaHBhZCBpcnEgaXRzZWxmID8KPj4+Pj4+Pj4KPj4+Pj4+Pj4gSWYgdGhpcyBvbmx5IGhh cHBlbnMgb24gdGhlIHBhcmVudCBpcnEsIHRoZW4gSSB3b3VsZCBzdGFydCBsb29raW5nIGF0IHRo ZQo+Pj4+Pj4+PiBhbWQtcGluY3RybCBjb2RlIHdoaWNoIGRldGVybWluZXMgd2hpY2ggb2YgaXRz ICJjaGlsZCIgaXJxcyB0byBmaXJlLgo+Pj4+Pj4+Cj4+Pj4+Pj4gVGhpcyBvbmx5IGhhcHBlbnMg b24gdGhlIHBhcmVudCBpcnEuIFRoZSBpbnB1dCdzIHBpbiMxMzAgb2YgdGhlIEdJUE8KPj4+Pj4+ PiBjaGlwIGlzIGxvdyBtb3N0IG9mIHRoZSB0aW1lIGFuZCBwaW4jMTMwLgo+Pj4+Pj4KPj4+Pj4+ IFJpZ2h0LCBidXQgaXQgaXMgYSBsb3ctbGV2ZWwgdHJpZ2dlcmVkIElSUSwgc28gd2hlbiBpdCBp cyBsb3cgaXQgc2hvdWxkCj4+Pj4+PiBiZSBleGVjdXRpbmcgdGhlIGkyYy1oaWQgaW50ZXJydXB0 LWhhbmRsZXIuIElmIGl0IGlzIG5vdCBleGVjdXRpbmcgdGhhdAo+Pj4+Pj4gdGhlbiBpdCBpcyB0 aW1lIHRvIGxvb2sgYXQgYW1kLXBpbmN0cmwncyBpcnEtaGFuZGxlciBhbmQgZmlndXJlIG91dCB3 aHkKPj4+Pj4+IHRoYXQgaXMgbm90IHRyaWdnZXJpbmcgdGhlIGNoaWxkIGlycSBoYW5kbGVyIGZv ciB0aGUgdG91Y2hwYWQuCj4+Pj4+Pgo+Pj4+PiBJJ20gbm90IHN1cmUgaWYgSSBoYXZlIHNvbWUg aW5jb3JyZWN0IHVuZGVyc3RhbmRpbmdzIGFib3V0IEdQSU8KPj4+Pj4gaW50ZXJydXB0IGNvbnRy b2xsZXIgYmVjYXVzZSBJIGRvbid0IHF1aXRlIGZvbGxvdyB5b3VyIHJlYXNvbmluZy4KPj4+Pj4g V2hhdCBJIGFjdHVhbGx5IHN1c3BlY3QgaXMgdGhlcmUncyBzb21ldGhpbmcgd3Jvbmcgd2l0aCBh bWQtcGluY3RybAo+Pj4+PiB3aGljaCBtYWtlcyB0aGUgR1BJTyBjaGlwIGZhaWwgdG8gYXNzZXJ0 IGl0cyBjb21tb24gaW50ZXJydXB0IG91dHB1dAo+Pj4+PiBsaW5lIGNvbm5lY3RlZCB0byBvbmUg SU8tQVBJQydzIHBpbiM3IHRodXMgSVJRIzcgZmFpbHMgdG8gZmlyZS4gV2hhdAo+Pj4+PiBJIGxl YXJuIGFib3V0IHRoaXMgbG93LWxldmVsIHRyaWdnZXJlZCBJUlEgaXMgdGhhdCB0aGUgaTJjLWhp ZAo+Pj4+PiBpbnRlcnJ1cHQtaGFuZGxlciB3aWxsIGJlIHdva2VuIHVwIGJ5IGFtZC1waW5jdHJs J3MgaXJxLWhhbmRsZXIgd2hpY2gKPj4+Pj4gaXMgZXhlY3V0ZWQgd2hlbiB0aGUgcGFyZW50IElS USM3IGZpcmVzLiBUaGUgY29kZSBwYXRoIGlzIGFzIGZvbGxvd3MsCj4+Pj4+Cj4+Pj4+IMOD4oCa w4LCoMOD4oCaw4LCoMOD4oCaw4LCoCA8SVJRPgo+Pj4+PiDDg+KAmsOCwqDDg+KAmsOCwqDDg+KA msOCwqAgZHVtcF9zdGFjaysweDY0LzB4ODgKPj4+Pj4gw4PigJrDgsKgw4PigJrDgsKgw4PigJrD gsKgIF9faXJxX3dha2VfdGhyZWFkLmNvbGQrMHg5LzB4MTIKPj4+Pj4gw4PigJrDgsKgw4PigJrD gsKgw4PigJrDgsKgIF9faGFuZGxlX2lycV9ldmVudF9wZXJjcHUrMHg4MC8weDFjMAo+Pj4+PiDD g+KAmsOCwqDDg+KAmsOCwqDDg+KAmsOCwqAgaGFuZGxlX2lycV9ldmVudCsweDU4LzB4YjAKPj4+ Pj4gw4PigJrDgsKgw4PigJrDgsKgw4PigJrDgsKgIGhhbmRsZV9sZXZlbF9pcnErMHhiNy8weDFh MAo+Pj4+PiDDg+KAmsOCwqDDg+KAmsOCwqDDg+KAmsOCwqAgZ2VuZXJpY19oYW5kbGVfaXJxKzB4 NGEvMHg2MAo+Pj4+PiDDg+KAmsOCwqDDg+KAmsOCwqDDg+KAmsOCwqAgYW1kX2dwaW9faXJxX2hh bmRsZXIrMHgxNWYvMHgxYjAgW3BpbmN0cmxfYW1kXQo+Pj4+PiDDg+KAmsOCwqDDg+KAmsOCwqDD g+KAmsOCwqAgX19oYW5kbGVfaXJxX2V2ZW50X3BlcmNwdSsweDQ1LzB4MWMwCj4+Pj4+IMOD4oCa w4LCoMOD4oCaw4LCoMOD4oCaw4LCoCBoYW5kbGVfaXJxX2V2ZW50KzB4NTgvMHhiMAo+Pj4+PiDD g+KAmsOCwqDDg+KAmsOCwqDDg+KAmsOCwqAgaGFuZGxlX2Zhc3Rlb2lfaXJxKzB4YTIvMHgyMTAK Pj4+Pj4gw4PigJrDgsKgw4PigJrDgsKgw4PigJrDgsKgIGRvX0lSUSsweDcwLzB4MTIwCj4+Pj4+ IMOD4oCaw4LCoMOD4oCaw4LCoMOD4oCaw4LCoCBjb21tb25faW50ZXJydXB0KzB4Zi8weGYKPj4+ Pj4gw4PigJrDgsKgw4PigJrDgsKgw4PigJrDgsKgIDwvSVJRPgo+Pj4+Pgo+Pj4+PiBCdXQgdGhl IHByb2JsZW0gaXMgc29tZWhvdyBJUlEjNyBkb2Vzbid0IGV2ZW4gZmlyZSB3aGVuIHRoZSBpbnB1 dCdzCj4+Pj4+IHBpbiMxMzAgb2YgdGhlIEdJUE8gaXMgbG93LiBXaXRob3V0IElSUSM3IGZpcmlu ZywgYW1kLXBpbmN0cmwncwo+Pj4+PiBpcnEtaGFuZGxlciB3b3VsZG4ndCBiZSBleGVjdXRlZCBp biB0aGUgZmlyc3QgcGxhY2UsIGxldCBhbG9uZXQKPj4+Pj4gdHJpZ2dlcmluZyB0aGUgY2hpbGQg aXJxIGhhbmRsZXIuIEJ0dywgYW1kLXBpbmN0cmwncyBpcnEtaGFuZGxlcgo+Pj4+PiBzaW1wbHkg aXRlcmF0ZSBvdmVyIGFsbCBwaW5zLiBJZiB0aGVyZSBpcyBtYXBwZWQgaXJxIGZvdW5kIGZvciB0 aGlzCj4+Pj4+IGh3aXJxICh5ZXMsIGl0IHdvbid0IGV2ZW4gY2hlY2sgaWYgdGhpcyBwaW4gdHJp Z2dlcnMgdGhlIGludGVycnVwdCksCj4+Pj4+IHRoZW4gaXQgd2lsbCBjYWxsIGdlbmVyaWNfaGFu ZGxlX2lycS4gU28gdGhlcmUncyBub3RoaW5nIHdyb25nIGFib3V0Cj4+Pj4+IHRoaXMgcGFydCBv ZiBjb2RlLgo+Pj4+Cj4+Pj4gT2ssIHNvIHRoZSBpMmMtaGlkIGlycSBkb2VzIGZpcmUsIGJ1dCBv bmx5IDcgdGltZXMgYSBzZWNvbmQganVzdAo+Pj4+IGxpa2UgdGhlIEdQSU8gY29udHJvbGxlcidz IHBhcmVudCBpcnEuCj4+Pj4KPj4+IEknbSBub3Qgc3VyZSBpZiBpdCdzIGNvcnJlY3QgdG8gc2F5 IGlmIGhpMmMtaGlkIGlycSBmaXJlcyBvciBub3QgYW5kIGhvdwo+Pj4gZnJlcXVlbnRseSBpdCBm aXJlcyBzaW5jZSB0aGUgaTJjLWhpZCBpcnEgaXMgbWFwcGVkIHRvIHBpbiMxMzAgb2YgdGhlCj4+ PiBHUElPIGludGVycnVwdCBjb250cm9sbGVyIGFuZCB0aGUgdG91Y2hwYWQgaGFzIGFub3RoZXIg aW50ZXJydXB0IGxpbmUKPj4+IGNvbm5lY3RlZCB0byBwaW4jMTMwIHdoaWNoIGZpcmVzIHRvIGlu ZGljYXRlIG5ldyBkYXRhLiBBbGwgd2Uga25vdyBpcwo+Pj4gcGluIzEzMCBvZiB0aGUgR1BJTyBj aGlwIGhhcyBsb3cgaW5wdXQgbW9zdCBvZiB0aGUgdGltZSB3aGVuIHRoZSBmaW5nZXIKPj4+IGlz IG9uIHRoZSB0b3VjaHBhZCBzbyB3ZSBjYW4gaW5mZXIgdGhlIHRvdWNocGFkIGhhcyBiZWVuIHRy eWluZyB0bwo+Pj4gbm90aWZ5IHRoZSBrZXJuZWwgb2YgbmV3IGRhdGEgYnV0IHNvbWVob3cgR1BJ TydzIHBhcmVudCBpcnEgb25seSBmaXJlcyA3Cj4+PiB0aW1lcyAvIHNlY29uZC4KPj4+Cj4+Pj4g VGhlIG9ubHkgdGhpbmcgSSBjYW4gdGhpbmsgb2YgdGhlbiBpcyB0byBhZGQgcHJpbnRrLXMgdG8g Y2hlY2sgaG93Cj4+Pj4gbG9uZyB0aGUgaTJjLWhpZCBpbnRlcnJ1cHQgaGFuZGxlciB0YWtlcyB0 byBjb21wbGV0ZS4gSXQgY291bGQgYmUKPj4+PiB0aGVyZSBpcyBhIHN1YnRsZSBidWcgc29tZXdo ZXJlIGNhdXNpbmcgdGhlIGkyYyB0cmFuc2ZlcnMgdG8gdGFrZQo+Pj4+IGxvbmdlciB3aGVuIHJ1 biBmcm9tIGEgKHRocmVhZGVkKSBpcnEgaGFuZGxlci4gVGhhdCB3b3VsZCBiZSB3ZWlyZAo+Pj4+ IHRob3VnaCwgc28gSSBkb24ndCBleHBlY3QgdGhpcyB0byByZXN1bHQgaW4gYW55IHVzZWZ1bCBm aW5kaW5ncy4KPj4+Pgo+Pj4KPj4+IEkgYWxzbyBkb3VidGVkIGlmIGl0IHRha2VzIHRvbyBtdWNo IHRpbWUgZm9yIHRoZSBpMmMtaGlkIGhhbmRsZXIgdG8KPj4+IGZpbmlzaCByZWFkaW5nIGkyYyB0 cmFuc2ZlciwgcHJvY2Vzc2luZyBkYXRhIGFuZCBkZWxpdmVyaW5nIHRvIHRoZSBpbnB1dAo+Pj4g c3lzdGVtLiBBZnRlciBtZWFzdXJpbmcgdGhlIHRpbWUgaW50ZXJuYWwgYmV0d2VlbiB0aGUgc3Rh cnRpbmcgb2YgdGhlCj4+PiBHUElPIGlycSdzIHBhcmVudCBoYW5kbGVyIGFuZCB3aGVuIHBpbiMx MzAgaXMgdW5tYXNrZWQsIHdlIGNhbiBleGNsdWRlCj4+PiB0aGlzIHBvc3NpYmlsaXR5Lgo+Pj4K Pj4+IEkgaGF2ZSBiZWVuIHdvbmRlcmluZyBpZiB3ZSBsZXQgbWFrZSBwaW4jMTMwIGhhdmUgbG93 IGlucHV0IHRodXMgdG8KPj4+IHRyaWdnZXIgYSBpbnRlcnJ1cHQgZmlyaW5nIG9yIGFzc2VydCB0 aGUgR1BJTydzIGNvbW1vbiBpbnRlcnJ1cHQgb3V0cHV0Cj4+PiBsaW5lIG1hbnVhbGx5IHRodXMg d2UgY2FuIG1lYXN1cmUgaG93IGxvbmcgZG9lcyBpdCB0YWtlIGZvciB0aGUga2VybmVsCj4+PiB0 byByZWNlaXZlIHRoZSBzaWduYWwuIEJ1dCBvbmNlIEdQSU8ncyBwaW4gaXMgcHJvZ3JhbW1lZCB0 byBiZSBhCj4+PiBpbnRlcnJ1cHQgbGluZSB3ZSBjYW4ndCB3cml0ZSBhbnl0aGluZyB0byBpdCBh bmQgaXQgc2VlbXMgb3RoZXIKPj4+IGludGVycnVwdHMgY2FuIG9ubHkgYmUgZ2VuZXJhdGVkIGJ5 IHRoZSBoYXJkd2FyZS4gU28gdGhpcyBpZGVhIGlzIG5vdAo+Pj4gcGxhdXNpYmxlCj4+Pgo+Pgo+ PiBCdHcsIHRoZXJlIGFyZSBvdGhlciB1c2VycyB3aG8gaGF2ZSB0aGUgc2FtZSBsYXB0b3AgbW9k ZWwgYnV0IHdpdGggYQo+PiBkaWZmZXJlbnQgdG91Y2hwYWQgKEVMQU4pLiBUaGVpciB0b3VjaHBh ZHMgd291bGQgc2hvdyBpbgo+PiAvcHJvYy9idXMvaW5wdXQvZGV2aWNlcyBidXQgYXJlIGNvbXBs ZXRlbHkgZGVhZC4gaGlkLXJlY29yZGVyIHdoaWNoCj4+IHdpbGwgcmVhZCBISUQgcmVwb3J0cyBm cm9tIC9kZXYvaGlkcmF3IGdldHMgbm90aGluZyBpZiB0aGV5IHB1dCB0aGVyZQo+PiBmaW5nZXJz IG9uIHRoZSB0b3VjaHBhZCBidXQgdGhlIHBvbGxpbmcgbW9kZSBjb3VsZCBhbHNvIHNhdmUgdGhl aXIKPj4gdG91Y2hwYWRzLiBJdCBzZWVtcyBHUElPIGNvbnRyb2xsZXIncyBwYXJlbnQgaXJxIGZv ciB0aGUgRUxBTiB0b3VjaHBhZAo+PiBkb2Vzbid0IGV2ZW4gZmlyZSBvbmNlLiBBbmQgdW5saWtl IEdQSU8sIElPLUFQSUMgaGFzIGFsc28gYmUgdXNlZCBieQo+PiBvdGhlciBkZXZpY2VzIGxpa2Ug dGhlIGtleWJvYXJkLiBTbyBtYXliZSBpdCdzIHNhZmUgdG8gYXNzZXJ0IHRoZSByb290Cj4+IGNh dXNlIGlzIGZyb20gdGhlIEdQSU8gY29udHJvbGxlci4KPj4KPj4+PiBPdGhlciB0aGVuIHRoYXQg SSdtIGFsbCBvdXQgb2YgaWRlYXMgSSdtIGFmcmFpZC4KPj4+Pgo+Pj4gVGhhbmsgeW91IGZvciB0 YWtpbmcgdGltZSB0byBpbnZlc3RpZ2F0ZSB0aGlzIGlzc3VlIGFueXdheSEgSGF2ZSBhIG5pY2UK Pj4+IHdlZWtlbmQ6KQo+Pj4+IFJlZ2FyZHMsCj4+Pj4KPj4+PiBIYW5zCj4+Pj4KPj4+Cj4+PiAt LSAKPj4+IEJlc3QgcmVnYXJkcywKPj4+IENvaWJ5Cj4+Cj4+IC0tIAo+PiBCZXN0IHJlZ2FyZHMs Cj4+IENvaWJ5Cj4gCj4gLS0gCj4gQmVzdCByZWdhcmRzLAo+IENvaWJ5Cj4gCgpfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpMaW51eC1rZXJuZWwtbWVudGVl cyBtYWlsaW5nIGxpc3QKTGludXgta2VybmVsLW1lbnRlZXNAbGlzdHMubGludXhmb3VuZGF0aW9u Lm9yZwpodHRwczovL2xpc3RzLmxpbnV4Zm91bmRhdGlvbi5vcmcvbWFpbG1hbi9saXN0aW5mby9s aW51eC1rZXJuZWwtbWVudGVlcwo=