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[PATCH 1/2] mtd: call of_platform_populate() for MTD partitions To: Daniel Golle , Miquel Raynal Cc: Srinivas Kandagatla , Richard Weinberger , Vignesh Raghavendra , Tom Rini , linux-mtd@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, u-boot@lists.denx.de, devicetree@vger.kernel.org, =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= References: <20220406143225.28107-1-zajec5@gmail.com> <20220411090032.10999-1-miquel.raynal@bootlin.com> From: =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220504_064100_277414_78A09118 X-CRM114-Status: GOOD ( 23.04 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org T24gMjUuMDQuMjAyMiAwMzoyMCwgRGFuaWVsIEdvbGxlIHdyb3RlOgo+IE9uIE1vbiwgQXByIDEx LCAyMDIyIGF0IDExOjAwOjMyQU0gKzAyMDAsIE1pcXVlbCBSYXluYWwgd3JvdGU6Cj4+IE9uIFdl ZCwgMjAyMi0wNC0wNiBhdCAxNDozMjoyNCBVVEMsID0/dXRmLTg/Yj9VbUZtWWNXQ0lFMXB4WUps WTJ0cD89IHdyb3RlOgo+Pj4gRnJvbTogUmFmYcWCIE1pxYJlY2tpIDxyYWZhbEBtaWxlY2tpLnBs Pgo+Pj4KPj4+IFVudGlsIHRoaXMgY2hhbmdlIE1URCBzdWJzeXN0ZW0gc3VwcG9ydGVkIGhhbmRs aW5nIHBhcnRpdGlvbnMgb25seSB3aXRoCj4+PiBNVEQgcGFydGl0aW9ucyBwYXJzZXJzLiBUaGF0 J3MgYSBzcGVjaWZpYyAvIGxpbWl0ZWQgQVBJIGRlc2lnbmVkIGFyb3VuZAo+Pj4gcGFydGl0aW9u cy4KPj4+Cj4+PiBTb21lIE1URCBwYXJ0aXRpb25zIG1heSBob3dldmVyIHJlcXVpcmUgZGlmZmVy ZW50IGhhbmRsaW5nLiBUaGV5IG1heQo+Pj4gY29udGFpbiBzcGVjaWZpYyBkYXRhIHRoYXQgbmVl ZHMgdG8gYmUgcGFyc2VkIGFuZCBzb21laG93IGV4dHJhY3RlZC4gRm9yCj4+PiB0aGF0IHB1cnBv c2UgTVREIHN1YnN5c3RlbSBzaG91bGQgYWxsb3cgYmluZGluZyBvZiBzdGFuZGFyZCBwbGF0Zm9y bQo+Pj4gZHJpdmVycy4KPj4+Cj4+PiBBbiBleGFtcGxlIGNhbiBiZSBVLUJvb3QgKHN1YilwYXJ0 aXRpb24gd2l0aCBlbnZpcm9ubWVudCB2YXJpYWJsZXMuCj4+PiBUaGVyZSBleGlzdCBhICJ1LWJv b3QsZW52IiBEVCBiaW5kaW5nIGZvciBNVEQgKHN1YilwYXJ0aXRpb24gdGhhdAo+Pj4gcmVxdWly ZXMgYW4gTlZNRU0gZHJpdmVyLgo+Pj4KPj4+IFJlZjogNWRiMWMyZGJjMDRjICgiZHQtYmluZGlu Z3M6IG52bWVtOiBhZGQgVS1Cb290IGVudmlyb25tZW50IHZhcmlhYmxlcyBiaW5kaW5nIikKPj4+ IFNpZ25lZC1vZmYtYnk6IFJhZmHFgiBNacWCZWNraSA8cmFmYWxAbWlsZWNraS5wbD4KPj4KPj4g QXBwbGllZCB0byBodHRwczovL2dpdC5rZXJuZWwub3JnL3B1Yi9zY20vbGludXgva2VybmVsL2dp dC9tdGQvbGludXguZ2l0IG10ZC9uZXh0LCB0aGFua3MuCj4gCj4gSSdtIHRyeWluZyB0byB1c2Ug bmV4dC0yMDIyMDQyMiBhbmQgbm90aWNlZCBhIGZldyBuZXcgb29wcydlcy4KPiBUdXJucyBvdXQg aXQgY291bGQgYmUgYSBwcm9ibGVtIHdpdGggdGhpcyBjb21taXQgYWNjb3JkaW5nIHRvCj4gCj4g W2RhbmllbEBib3ggbGludXguZ2l0XSQgZ2l0IGJpc2VjdCBnb29kCj4gNjg0NzE1MTdlODgzOTAy Y2RmZjZlYTM5OWQwNDNiMTdmODAzYjFhOCBpcyB0aGUgZmlyc3QgYmFkIGNvbW1pdAo+IGNvbW1p dCA2ODQ3MTUxN2U4ODM5MDJjZGZmNmVhMzk5ZDA0M2IxN2Y4MDNiMWE4Cj4gQXV0aG9yOiBSYWZh xYIgTWnFgmVja2kgPHJhZmFsQG1pbGVja2kucGw+Cj4gRGF0ZTogICBXZWQgQXByIDYgMTY6MzI6 MjQgMjAyMiArMDIwMAo+IAo+ICAgICAgbXRkOiBjYWxsIG9mX3BsYXRmb3JtX3BvcHVsYXRlKCkg Zm9yIE1URCBwYXJ0aXRpb25zCj4gWy4uLl0KPiAtLS0KPiAKPiBTbyB3aGVuIGV2ZXIgdGhlcmUg aXMgYXQgbGVhc3Qgb25lICdjb21wYXRpYmxlJyBub2RlIGZvciBhbnkgb2YgdGhlCj4gbXRkIHBh cnRpdGlvbnMgSSBnZXQgdGhlIG9vcHMgbWVzc2FnZXMgYmVsb3cuIEl0IGRvZXNuJ3QgcmVhbGx5 IG1hdHRlcgo+IHdoYXQgdGhlIGNvbXBhdGlibGUgc3RyaW5nIGlzLCAibnZtZW0tY2VsbHMiIGFz IHdlbGwgYXMgImRlbngsZml0Igo+ICh1c2VkIGZvciBPcGVuV3J0IG10ZHNwbGl0IG5vdCBldmVu IHByZXNlbnQgaW4gbGludXgtbmV4dCwgc28ganVzdCBhCj4gZGVhZCBoaW50IGluIERUUykgbWFr ZSB0aGUga2VybmVsIHRvIG9vcHMuCj4gCj4gRGVzcGl0ZSB0aGUgbWVzc2FnZXMgYmVpbmcgc2hv d24sIGJvdGggYWNjZXNzaW5nIE1URCBwYXJ0aXRpb25zIGFuZAo+IGFsc28gZXRoMCBNQUMgYWRk cmVzcyBwb3B1bGF0ZWQgdmlhIE5WTUVNIHNlZW0gdG8gd29yayB3aXRob3V0Cj4gcHJvYmxlbXMg KGF0IGxlYXN0IGxvb2tzIGxpa2UgaXQgb24gZmlyc3Qgc2lnaHQpLgo+IAo+IEZpbmQgdGhlIGZ1 bGwgZGV2aWNlIHRyZWUgaGVyZToKPiAKPiBodHRwczovL2dpdC5vcGVud3J0Lm9yZy8/cD1vcGVu d3J0L29wZW53cnQuZ2l0O2E9YmxvYjtmPXRhcmdldC9saW51eC9tZWRpYXRlay9kdHMvbXQ3NjIy LXVibnQtdW5pZmktNi1sci11Ym9vdG1vZC5kdHMKCkkgZm91bmQgaXQhIEl0IHVzZWQgdG8gaGFw cGVuIChiZWZvcmUgZHJvcHBpbmcgcGF0Y2gpIHdpdGg6CiMgQ09ORklHX01URF9QQVJUSVRJT05F RF9NQVNURVIgaXMgbm90IHNldAoKSSdsbCB3b3JrIG9uIFYyIHdoaWNoIGRvZXNuJ3QgcmVxdWly ZQpDT05GSUdfTVREX1BBUlRJVElPTkVEX01BU1RFUj15CgpfX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KTGludXggTVREIGRpc2N1c3Npb24gbWFp bGluZyBsaXN0Cmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGlu dXgtbXRkLwo= 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 D01A4C433EF for ; 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[194.187.74.233]) by smtp.googlemail.com with ESMTPSA id t26-20020a05640203da00b0042617ba6383sm9088126edw.13.2022.05.04.06.40.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 04 May 2022 06:40:56 -0700 (PDT) Message-ID: <63cb6fe1-5abe-ebfe-7d94-34dff86f1a81@gmail.com> Date: Wed, 4 May 2022 15:40:55 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:96.0) Gecko/20100101 Thunderbird/96.0 Subject: Re: Regression? [PATCH 1/2] mtd: call of_platform_populate() for MTD partitions To: Daniel Golle , Miquel Raynal Cc: Srinivas Kandagatla , Richard Weinberger , Vignesh Raghavendra , Tom Rini , linux-mtd@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, u-boot@lists.denx.de, devicetree@vger.kernel.org, =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= References: <20220406143225.28107-1-zajec5@gmail.com> <20220411090032.10999-1-miquel.raynal@bootlin.com> From: =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220504_064100_277414_78A09118 X-CRM114-Status: GOOD ( 23.04 ) 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-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gMjUuMDQuMjAyMiAwMzoyMCwgRGFuaWVsIEdvbGxlIHdyb3RlOgo+IE9uIE1vbiwgQXByIDEx LCAyMDIyIGF0IDExOjAwOjMyQU0gKzAyMDAsIE1pcXVlbCBSYXluYWwgd3JvdGU6Cj4+IE9uIFdl ZCwgMjAyMi0wNC0wNiBhdCAxNDozMjoyNCBVVEMsID0/dXRmLTg/Yj9VbUZtWWNXQ0lFMXB4WUps WTJ0cD89IHdyb3RlOgo+Pj4gRnJvbTogUmFmYcWCIE1pxYJlY2tpIDxyYWZhbEBtaWxlY2tpLnBs Pgo+Pj4KPj4+IFVudGlsIHRoaXMgY2hhbmdlIE1URCBzdWJzeXN0ZW0gc3VwcG9ydGVkIGhhbmRs aW5nIHBhcnRpdGlvbnMgb25seSB3aXRoCj4+PiBNVEQgcGFydGl0aW9ucyBwYXJzZXJzLiBUaGF0 J3MgYSBzcGVjaWZpYyAvIGxpbWl0ZWQgQVBJIGRlc2lnbmVkIGFyb3VuZAo+Pj4gcGFydGl0aW9u cy4KPj4+Cj4+PiBTb21lIE1URCBwYXJ0aXRpb25zIG1heSBob3dldmVyIHJlcXVpcmUgZGlmZmVy ZW50IGhhbmRsaW5nLiBUaGV5IG1heQo+Pj4gY29udGFpbiBzcGVjaWZpYyBkYXRhIHRoYXQgbmVl ZHMgdG8gYmUgcGFyc2VkIGFuZCBzb21laG93IGV4dHJhY3RlZC4gRm9yCj4+PiB0aGF0IHB1cnBv c2UgTVREIHN1YnN5c3RlbSBzaG91bGQgYWxsb3cgYmluZGluZyBvZiBzdGFuZGFyZCBwbGF0Zm9y bQo+Pj4gZHJpdmVycy4KPj4+Cj4+PiBBbiBleGFtcGxlIGNhbiBiZSBVLUJvb3QgKHN1YilwYXJ0 aXRpb24gd2l0aCBlbnZpcm9ubWVudCB2YXJpYWJsZXMuCj4+PiBUaGVyZSBleGlzdCBhICJ1LWJv b3QsZW52IiBEVCBiaW5kaW5nIGZvciBNVEQgKHN1YilwYXJ0aXRpb24gdGhhdAo+Pj4gcmVxdWly ZXMgYW4gTlZNRU0gZHJpdmVyLgo+Pj4KPj4+IFJlZjogNWRiMWMyZGJjMDRjICgiZHQtYmluZGlu Z3M6IG52bWVtOiBhZGQgVS1Cb290IGVudmlyb25tZW50IHZhcmlhYmxlcyBiaW5kaW5nIikKPj4+ IFNpZ25lZC1vZmYtYnk6IFJhZmHFgiBNacWCZWNraSA8cmFmYWxAbWlsZWNraS5wbD4KPj4KPj4g QXBwbGllZCB0byBodHRwczovL2dpdC5rZXJuZWwub3JnL3B1Yi9zY20vbGludXgva2VybmVsL2dp dC9tdGQvbGludXguZ2l0IG10ZC9uZXh0LCB0aGFua3MuCj4gCj4gSSdtIHRyeWluZyB0byB1c2Ug bmV4dC0yMDIyMDQyMiBhbmQgbm90aWNlZCBhIGZldyBuZXcgb29wcydlcy4KPiBUdXJucyBvdXQg aXQgY291bGQgYmUgYSBwcm9ibGVtIHdpdGggdGhpcyBjb21taXQgYWNjb3JkaW5nIHRvCj4gCj4g W2RhbmllbEBib3ggbGludXguZ2l0XSQgZ2l0IGJpc2VjdCBnb29kCj4gNjg0NzE1MTdlODgzOTAy Y2RmZjZlYTM5OWQwNDNiMTdmODAzYjFhOCBpcyB0aGUgZmlyc3QgYmFkIGNvbW1pdAo+IGNvbW1p dCA2ODQ3MTUxN2U4ODM5MDJjZGZmNmVhMzk5ZDA0M2IxN2Y4MDNiMWE4Cj4gQXV0aG9yOiBSYWZh xYIgTWnFgmVja2kgPHJhZmFsQG1pbGVja2kucGw+Cj4gRGF0ZTogICBXZWQgQXByIDYgMTY6MzI6 MjQgMjAyMiArMDIwMAo+IAo+ICAgICAgbXRkOiBjYWxsIG9mX3BsYXRmb3JtX3BvcHVsYXRlKCkg Zm9yIE1URCBwYXJ0aXRpb25zCj4gWy4uLl0KPiAtLS0KPiAKPiBTbyB3aGVuIGV2ZXIgdGhlcmUg aXMgYXQgbGVhc3Qgb25lICdjb21wYXRpYmxlJyBub2RlIGZvciBhbnkgb2YgdGhlCj4gbXRkIHBh cnRpdGlvbnMgSSBnZXQgdGhlIG9vcHMgbWVzc2FnZXMgYmVsb3cuIEl0IGRvZXNuJ3QgcmVhbGx5 IG1hdHRlcgo+IHdoYXQgdGhlIGNvbXBhdGlibGUgc3RyaW5nIGlzLCAibnZtZW0tY2VsbHMiIGFz IHdlbGwgYXMgImRlbngsZml0Igo+ICh1c2VkIGZvciBPcGVuV3J0IG10ZHNwbGl0IG5vdCBldmVu IHByZXNlbnQgaW4gbGludXgtbmV4dCwgc28ganVzdCBhCj4gZGVhZCBoaW50IGluIERUUykgbWFr ZSB0aGUga2VybmVsIHRvIG9vcHMuCj4gCj4gRGVzcGl0ZSB0aGUgbWVzc2FnZXMgYmVpbmcgc2hv d24sIGJvdGggYWNjZXNzaW5nIE1URCBwYXJ0aXRpb25zIGFuZAo+IGFsc28gZXRoMCBNQUMgYWRk cmVzcyBwb3B1bGF0ZWQgdmlhIE5WTUVNIHNlZW0gdG8gd29yayB3aXRob3V0Cj4gcHJvYmxlbXMg KGF0IGxlYXN0IGxvb2tzIGxpa2UgaXQgb24gZmlyc3Qgc2lnaHQpLgo+IAo+IEZpbmQgdGhlIGZ1 bGwgZGV2aWNlIHRyZWUgaGVyZToKPiAKPiBodHRwczovL2dpdC5vcGVud3J0Lm9yZy8/cD1vcGVu d3J0L29wZW53cnQuZ2l0O2E9YmxvYjtmPXRhcmdldC9saW51eC9tZWRpYXRlay9kdHMvbXQ3NjIy LXVibnQtdW5pZmktNi1sci11Ym9vdG1vZC5kdHMKCkkgZm91bmQgaXQhIEl0IHVzZWQgdG8gaGFw cGVuIChiZWZvcmUgZHJvcHBpbmcgcGF0Y2gpIHdpdGg6CiMgQ09ORklHX01URF9QQVJUSVRJT05F RF9NQVNURVIgaXMgbm90IHNldAoKSSdsbCB3b3JrIG9uIFYyIHdoaWNoIGRvZXNuJ3QgcmVxdWly ZQpDT05GSUdfTVREX1BBUlRJVElPTkVEX01BU1RFUj15CgpfX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdAps aW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVh ZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg== 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C5914C433EF for ; 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[194.187.74.233]) by smtp.googlemail.com with ESMTPSA id t26-20020a05640203da00b0042617ba6383sm9088126edw.13.2022.05.04.06.40.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 04 May 2022 06:40:56 -0700 (PDT) Message-ID: <63cb6fe1-5abe-ebfe-7d94-34dff86f1a81@gmail.com> Date: Wed, 4 May 2022 15:40:55 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:96.0) Gecko/20100101 Thunderbird/96.0 Subject: Re: Regression? [PATCH 1/2] mtd: call of_platform_populate() for MTD partitions To: Daniel Golle , Miquel Raynal Cc: Srinivas Kandagatla , Richard Weinberger , Vignesh Raghavendra , Tom Rini , linux-mtd@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, u-boot@lists.denx.de, devicetree@vger.kernel.org, =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= References: <20220406143225.28107-1-zajec5@gmail.com> <20220411090032.10999-1-miquel.raynal@bootlin.com> From: =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 25.04.2022 03:20, Daniel Golle wrote: > On Mon, Apr 11, 2022 at 11:00:32AM +0200, Miquel Raynal wrote: >> On Wed, 2022-04-06 at 14:32:24 UTC, =?utf-8?b?UmFmYcWCIE1pxYJlY2tp?= wrote: >>> From: Rafał Miłecki >>> >>> Until this change MTD subsystem supported handling partitions only with >>> MTD partitions parsers. That's a specific / limited API designed around >>> partitions. >>> >>> Some MTD partitions may however require different handling. They may >>> contain specific data that needs to be parsed and somehow extracted. For >>> that purpose MTD subsystem should allow binding of standard platform >>> drivers. >>> >>> An example can be U-Boot (sub)partition with environment variables. >>> There exist a "u-boot,env" DT binding for MTD (sub)partition that >>> requires an NVMEM driver. >>> >>> Ref: 5db1c2dbc04c ("dt-bindings: nvmem: add U-Boot environment variables binding") >>> Signed-off-by: Rafał Miłecki >> >> Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/next, thanks. > > I'm trying to use next-20220422 and noticed a few new oops'es. > Turns out it could be a problem with this commit according to > > [daniel@box linux.git]$ git bisect good > 68471517e883902cdff6ea399d043b17f803b1a8 is the first bad commit > commit 68471517e883902cdff6ea399d043b17f803b1a8 > Author: Rafał Miłecki > Date: Wed Apr 6 16:32:24 2022 +0200 > > mtd: call of_platform_populate() for MTD partitions > [...] > --- > > So when ever there is at least one 'compatible' node for any of the > mtd partitions I get the oops messages below. It doesn't really matter > what the compatible string is, "nvmem-cells" as well as "denx,fit" > (used for OpenWrt mtdsplit not even present in linux-next, so just a > dead hint in DTS) make the kernel to oops. > > Despite the messages being shown, both accessing MTD partitions and > also eth0 MAC address populated via NVMEM seem to work without > problems (at least looks like it on first sight). > > Find the full device tree here: > > https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=target/linux/mediatek/dts/mt7622-ubnt-unifi-6-lr-ubootmod.dts I found it! It used to happen (before dropping patch) with: # CONFIG_MTD_PARTITIONED_MASTER is not set I'll work on V2 which doesn't require CONFIG_MTD_PARTITIONED_MASTER=y