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([2001:8a0:e622:f700:5844:d7c8:2851:cad9]) by smtp.gmail.com with ESMTPSA id e27-20020a5d595b000000b003445bb2362esm9308419wri.65.2024.04.09.09.44.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Apr 2024 09:44:38 -0700 (PDT) Message-ID: Subject: Re: [PATCH v1] arm64: dts: imx8mm: fix missing pgc_vpu_* power domain parent From: Vitor Soares To: Lucas Stach , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: Vitor Soares , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Date: Tue, 09 Apr 2024 17:44:37 +0100 In-Reply-To: References: <20240409085802.290439-1-ivitro@gmail.com> <9ce35b9bb5a15891f6bd01bd54b7dc84b3ba4021.camel@pengutronix.de> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.44.4-0ubuntu2 Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Tue, 2024-04-09 at 16:36 +0200, Lucas Stach wrote: > Am Dienstag, dem 09.04.2024 um 14:22 +0100 schrieb Vitor Soares: > > Hi Lucas, > >=20 > > Thanks for your feedback. > >=20 > > On Tue, 2024-04-09 at 11:13 +0200, Lucas Stach wrote: > > > Hi Vitor, > > >=20 > > > Am Dienstag, dem 09.04.2024 um 09:58 +0100 schrieb Vitor Soares: > > > > From: Vitor Soares > > > >=20 > > > > The pgc_vpu_* nodes miss the reference to the power domain > > > > parent, > > > > leading the system to hang during the resume. > > > >=20 > > > This change is not correct. The vpumix domain is controlled > > > through > > > the > > > imx8mm-vpu-blk-ctrl and must not be directly triggered by the > > > child > > > domains in order to guarantee proper power sequencing. > > >=20 > > > If the sequencing is incorrect for resume, it needs to be fixed > > > in > > > the > > > blk-ctrl driver. I'll happily assist if you have any questions > > > about > > > this intricate mix between GPC and blk-ctrl hardware/drivers. > > =C2=A0 > > I'm new into the topic, so I tried to follow same approach as in > > imx8mp > > DT. > >=20 > That's a good hint, the 8MP VPU GPC node additions missed my radar. > The > direct dependency there between the GPC domains is equally wrong. >=20 > > I also checked the imx8mq DT and it only have one domain for the > > VPU in the GPC. It seem blk-ctrl also dependes on pgc_vpu_* to work > > properly. > >=20 > > The blk-ctrl driver hangs on imx8m_blk_ctrl_power_on() when access > > the > > ip registers for the soft reset. I tried to power-up the before the > > soft reset, but it didn't work. > >=20 > The runtime_pm_get_sync() at the start of that function should ensure > that bus GPC domain aka vpumix is powered up. Can you check if that > is > happening? I checked bc->bus_power_dev->power.runtime_status and it is RPM_ACTIVE. Am I looking to on the right thing? It is RPM_ACTIVE event before runtime_pm_get_sync(). >=20 > Regards, > Lucas >=20 > > Do you have an idea how we can address this within blk-ctrl? > >=20 > > Best regards, > > Vitor 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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B4024C67861 for ; Tue, 9 Apr 2024 16:44:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Date:Cc:To:From:Subject:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=j8nAvoEZjnWVU7mdPRzEzvdwtS2zMAnHloj7w2/s1Jk=; b=Cu3kWAdQmzYNHj 4cAtF1v3+bxzYhTTR0vieQ5SO3DH8NO4MHjMIyYZZu6gqVFwLlAzHmHzMwM1SIj24IR0KwdIkL+Jo 8qfSiS2pOsSqDtp+NN9uHgyW1+cjbMKyyUZS9hF8yIaJlfj4ukwFwXCSyPZv+szYAOtWYVDlC6dTK eSTMX8pmctjzGCCqrpNSMoD13qtgZkd84HEweEq+46xazDoE9eFJDIL2DZ7vNHyfN0RJPT36ZBuWV PHLnR1RwjyDBBiQqouopAHTeQWhpJGpWyQAFG1GnnuU+8NpaFEBh5OJFXhh2cXAqR9qvXW9oC0UP2 9OrT8UcHIo2DwxVpFGSQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1ruEaS-00000002zmN-3KiM; Tue, 09 Apr 2024 16:44:44 +0000 Received: from mail-wr1-x42e.google.com ([2a00:1450:4864:20::42e]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1ruEaP-00000002zlH-1MRN for linux-arm-kernel@lists.infradead.org; Tue, 09 Apr 2024 16:44:42 +0000 Received: by mail-wr1-x42e.google.com with SMTP id ffacd0b85a97d-343d1003106so3519612f8f.1 for ; Tue, 09 Apr 2024 09:44:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1712681079; x=1713285879; darn=lists.infradead.org; h=mime-version:user-agent:content-transfer-encoding:references :in-reply-to:date:cc:to:from:subject:message-id:from:to:cc:subject :date:message-id:reply-to; bh=39YyZmAfdf4vHb3K8iCAxVV01Zal5LvvE4zzi2uoc7o=; b=c2XMqGLQvmQ6tOLb/7Go1ix4hU0De4mjFAgMBJ41oBUV12GXlu+DBVOQmT42bwiCIr Trj8Vdpmn0Lgs5aEUtTITFIGa87mZP8oajPP0E2EKNOXkuMC1umQirzqsqR6vE/u4nv5 DqJvSy+yGCrKpOrE27P65/SVy9kETjBZlwZwnPavNVwZ94gdY29bTpWHfYoPHnrPCBoa ME1v6kQf4/HiKlDrxB9Cs1/KZi4+QZfCFo7ns152kuBhPpIXPySYDhL3Gmtvl9jPiVJ0 T5un/dqstueSxIZgU/073zfBulIn0+b5qEh87xjJRVr/TiEfa/KZTlKpbHFSwSJD/HdV eE/w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712681079; x=1713285879; h=mime-version:user-agent:content-transfer-encoding:references :in-reply-to:date:cc:to:from:subject:message-id:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=39YyZmAfdf4vHb3K8iCAxVV01Zal5LvvE4zzi2uoc7o=; b=n505HOgvhhkLkLrcRmqBrMdPjuJo5L/WK0K2QjomT/fp2Yw5Ia34kbNmOVC0Owa14u IX61tMsvn9VSqF8/jLUpxCLUElUjebYiUw/Ks0FcJ6dMKrW/9oVzTrCOoFTfVGmNXfCj aaDCLFvIPiypTvDWLudlyOuTCfRo91m8eh1PpCrIRACaiFpP6ZVAszBtZ0BWjeCyxwPV ADVoQxRFzPIz+KeyOqUCUvfB/9taVfXxjhn0oHHzjI91XIHwMYGvuFp1pcV03y+9oj6j Dk+EXeyaIHgsrMeCXzGWAOJmUxmw2MxQtD3x2+YHRZaroQlIWE8UZq6pnxOGZJZNvujG 7rng== X-Forwarded-Encrypted: i=1; AJvYcCW//GgNCjT0fD4EA1fv6L5EzkjKf69s1aIX0wNlHZ6vjvIAC5Qoj3fUiOPqcPxyL8ujRtdoijqEIFUkrqvlm5QU8hbwRhBWcQ4dFRVQpyR58QEc09k= X-Gm-Message-State: AOJu0YxCzDhKU+1OJPzJc0uAMuI1TSNQZl4aFqUSkE6G+Nbfug8K8pdC h1BU6gAaAeFZ1jfP9hc448tRnMmAgHCAkzOMuLoBxFUF6dhcn6hm X-Google-Smtp-Source: AGHT+IG9oCRp8KNYrcpRgvkxjASB4B9j7CiacUqJAP6Fnj2ZHjCz12vzOT6sXYOQlWJouTexhhWtPw== X-Received: by 2002:adf:f3d0:0:b0:341:8412:a6e7 with SMTP id g16-20020adff3d0000000b003418412a6e7mr188242wrp.18.1712681078763; Tue, 09 Apr 2024 09:44:38 -0700 (PDT) Received: from ?IPv6:2001:8a0:e622:f700:5844:d7c8:2851:cad9? ([2001:8a0:e622:f700:5844:d7c8:2851:cad9]) by smtp.gmail.com with ESMTPSA id e27-20020a5d595b000000b003445bb2362esm9308419wri.65.2024.04.09.09.44.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Apr 2024 09:44:38 -0700 (PDT) Message-ID: Subject: Re: [PATCH v1] arm64: dts: imx8mm: fix missing pgc_vpu_* power domain parent From: Vitor Soares To: Lucas Stach , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: Vitor Soares , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Date: Tue, 09 Apr 2024 17:44:37 +0100 In-Reply-To: References: <20240409085802.290439-1-ivitro@gmail.com> <9ce35b9bb5a15891f6bd01bd54b7dc84b3ba4021.camel@pengutronix.de> User-Agent: Evolution 3.44.4-0ubuntu2 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240409_094441_387603_AAECD827 X-CRM114-Status: GOOD ( 29.91 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gVHVlLCAyMDI0LTA0LTA5IGF0IDE2OjM2ICswMjAwLCBMdWNhcyBTdGFjaCB3cm90ZToKPiBB bSBEaWVuc3RhZywgZGVtIDA5LjA0LjIwMjQgdW0gMTQ6MjIgKzAxMDAgc2NocmllYiBWaXRvciBT b2FyZXM6Cj4gPiBIaSBMdWNhcywKPiA+IAo+ID4gVGhhbmtzIGZvciB5b3VyIGZlZWRiYWNrLgo+ ID4gCj4gPiBPbiBUdWUsIDIwMjQtMDQtMDkgYXQgMTE6MTMgKzAyMDAsIEx1Y2FzIFN0YWNoIHdy b3RlOgo+ID4gPiBIaSBWaXRvciwKPiA+ID4gCj4gPiA+IEFtIERpZW5zdGFnLCBkZW0gMDkuMDQu MjAyNCB1bSAwOTo1OCArMDEwMCBzY2hyaWViIFZpdG9yIFNvYXJlczoKPiA+ID4gPiBGcm9tOiBW aXRvciBTb2FyZXMgPHZpdG9yLnNvYXJlc0B0b3JhZGV4LmNvbT4KPiA+ID4gPiAKPiA+ID4gPiBU aGUgcGdjX3ZwdV8qIG5vZGVzIG1pc3MgdGhlIHJlZmVyZW5jZSB0byB0aGUgcG93ZXIgZG9tYWlu Cj4gPiA+ID4gcGFyZW50LAo+ID4gPiA+IGxlYWRpbmcgdGhlIHN5c3RlbSB0byBoYW5nIGR1cmlu ZyB0aGUgcmVzdW1lLgo+ID4gPiA+IAo+ID4gPiBUaGlzIGNoYW5nZSBpcyBub3QgY29ycmVjdC4g VGhlIHZwdW1peCBkb21haW4gaXMgY29udHJvbGxlZAo+ID4gPiB0aHJvdWdoCj4gPiA+IHRoZQo+ ID4gPiBpbXg4bW0tdnB1LWJsay1jdHJsIGFuZCBtdXN0IG5vdCBiZSBkaXJlY3RseSB0cmlnZ2Vy ZWQgYnkgdGhlCj4gPiA+IGNoaWxkCj4gPiA+IGRvbWFpbnMgaW4gb3JkZXIgdG8gZ3VhcmFudGVl IHByb3BlciBwb3dlciBzZXF1ZW5jaW5nLgo+ID4gPiAKPiA+ID4gSWYgdGhlIHNlcXVlbmNpbmcg aXMgaW5jb3JyZWN0IGZvciByZXN1bWUsIGl0IG5lZWRzIHRvIGJlIGZpeGVkCj4gPiA+IGluCj4g PiA+IHRoZQo+ID4gPiBibGstY3RybCBkcml2ZXIuIEknbGwgaGFwcGlseSBhc3Npc3QgaWYgeW91 IGhhdmUgYW55IHF1ZXN0aW9ucwo+ID4gPiBhYm91dAo+ID4gPiB0aGlzIGludHJpY2F0ZSBtaXgg YmV0d2VlbiBHUEMgYW5kIGJsay1jdHJsIGhhcmR3YXJlL2RyaXZlcnMuCj4gPiDCoAo+ID4gSSdt IG5ldyBpbnRvIHRoZSB0b3BpYywgc28gSSB0cmllZCB0byBmb2xsb3cgc2FtZSBhcHByb2FjaCBh cyBpbgo+ID4gaW14OG1wCj4gPiBEVC4KPiA+IAo+IFRoYXQncyBhIGdvb2QgaGludCwgdGhlIDhN UCBWUFUgR1BDIG5vZGUgYWRkaXRpb25zIG1pc3NlZCBteSByYWRhci4KPiBUaGUKPiBkaXJlY3Qg ZGVwZW5kZW5jeSB0aGVyZSBiZXR3ZWVuIHRoZSBHUEMgZG9tYWlucyBpcyBlcXVhbGx5IHdyb25n Lgo+IAo+ID4gSSBhbHNvIGNoZWNrZWQgdGhlIGlteDhtcSBEVCBhbmQgaXQgb25seSBoYXZlIG9u ZSBkb21haW4gZm9yIHRoZQo+ID4gVlBVIGluIHRoZSBHUEMuIEl0IHNlZW0gYmxrLWN0cmwgYWxz byBkZXBlbmRlcyBvbiBwZ2NfdnB1XyogdG8gd29yawo+ID4gcHJvcGVybHkuCj4gPiAKPiA+IFRo ZSBibGstY3RybCBkcml2ZXIgaGFuZ3Mgb24gaW14OG1fYmxrX2N0cmxfcG93ZXJfb24oKSB3aGVu IGFjY2Vzcwo+ID4gdGhlCj4gPiBpcCByZWdpc3RlcnMgZm9yIHRoZSBzb2Z0IHJlc2V0LiBJIHRy aWVkIHRvIHBvd2VyLXVwIHRoZSBiZWZvcmUgdGhlCj4gPiBzb2Z0IHJlc2V0LCBidXQgaXQgZGlk bid0IHdvcmsuCj4gPiAKPiBUaGUgcnVudGltZV9wbV9nZXRfc3luYygpIGF0IHRoZSBzdGFydCBv ZiB0aGF0IGZ1bmN0aW9uIHNob3VsZCBlbnN1cmUKPiB0aGF0IGJ1cyBHUEMgZG9tYWluIGFrYSB2 cHVtaXggaXMgcG93ZXJlZCB1cC4gQ2FuIHlvdSBjaGVjayBpZiB0aGF0Cj4gaXMKPiBoYXBwZW5p bmc/CgpJIGNoZWNrZWQgYmMtPmJ1c19wb3dlcl9kZXYtPnBvd2VyLnJ1bnRpbWVfc3RhdHVzIGFu ZCBpdCBpcyBSUE1fQUNUSVZFLgoKQW0gSSBsb29raW5nIHRvIG9uIHRoZSByaWdodCB0aGluZz8g SXQgaXMgUlBNX0FDVElWRSBldmVudCBiZWZvcmUKcnVudGltZV9wbV9nZXRfc3luYygpLgoKCj4g Cj4gUmVnYXJkcywKPiBMdWNhcwo+IAo+ID4gRG8geW91IGhhdmUgYW4gaWRlYSBob3cgd2UgY2Fu IGFkZHJlc3MgdGhpcyB3aXRoaW4gYmxrLWN0cmw/Cj4gPiAKPiA+IEJlc3QgcmVnYXJkcywKPiA+ IFZpdG9yCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K bGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZy YWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGlu dXgtYXJtLWtlcm5lbAo=