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[194.187.74.233]) by smtp.googlemail.com with ESMTPSA id bj40sm28460ljb.106.2021.10.08.13.52.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 08 Oct 2021 13:52:11 -0700 (PDT) Subject: Re: [PATCH V2 linux-pinctrl 1/2] Revert "dt-bindings: pinctrl: bcm4708-pinmux: rework binding to use syscon" To: Rob Herring Cc: Linus Walleij , devicetree@vger.kernel.org, Ray Jui , bcm-kernel-feedback-list@broadcom.com, Scott Branden , =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= , linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org References: <20211008153939.19685-1-zajec5@gmail.com> <1633722536.868012.3211952.nullmailer@robh.at.kernel.org> From: =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= Message-ID: <25e875ff-ec4d-0872-4e56-2cd528ad3ee8@gmail.com> Date: Fri, 8 Oct 2021 22:52:09 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.1 MIME-Version: 1.0 In-Reply-To: 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 On 08.10.2021 22:49, Rob Herring wrote: > On Fri, Oct 08, 2021 at 10:08:46PM +0200, Rafał Miłecki wrote: >> On 08.10.2021 21:48, Rob Herring wrote: >>> On Fri, 08 Oct 2021 17:39:38 +0200, Rafał Miłecki wrote: >>>> From: Rafał Miłecki >>>> >>>> This reverts commit 2ae80900f239484069569380e1fc4340fd6e0089. >>>> >>>> My rework was unneeded & wrong. It replaced a clear & correct "reg" >>>> property usage with a custom "offset" one. >>>> >>>> Back then I didn't understand how to properly handle CRU block binding. >>>> I heard / read about syscon and tried to use it in a totally invalid >>>> way. That change also missed Rob's review (obviously). >>>> >>>> Northstar's pin controller is a simple consistent hardware block that >>>> can be cleanly mapped using a 0x24 long reg space. >>>> >>>> Since the rework commit there wasn't any follow up modifying in-kernel >>>> DTS files to use the new binding. Broadcom also isn't known to use that >>>> bugged binding. There is close to zero chance this revert may actually >>>> cause problems / regressions. >>>> >>>> This commit is a simple revert. Example binding may (should) be updated >>>> / cleaned up but that can be handled separately. >>>> >>>> Signed-off-by: Rafał Miłecki >>>> --- >>>> V2: Update brcm,cru.yaml to avoid new yamllint warnings/errors >>>> --- >>>> .../devicetree/bindings/mfd/brcm,cru.yaml | 11 +++++---- >>>> .../bindings/pinctrl/brcm,ns-pinmux.yaml | 23 +++++++++++-------- >>>> 2 files changed, 19 insertions(+), 15 deletions(-) >>>> >>> >>> My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check' >>> on your patch (DT_CHECKER_FLAGS is new in v5.13): >>> >>> yamllint warnings/errors: >>> >>> dtschema/dtc warnings/errors: >>> /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/pinctrl/brcm,ns-pinmux.example.dt.yaml: cru@1800c100: $nodename:0: 'cru@1800c100' does not match '^([a-z][a-z0-9\\-]+-bus|bus|soc|axi|ahb|apb)(@[0-9a-f]+)?$' >>> From schema: /usr/local/lib/python3.8/dist-packages/dtschema/schemas/simple-bus.yaml >> >> It's warning we already have and not something introduced by this >> revert. > > We don't allow warnings, so you're saying this one was warning before? Yes. >> As a revert this commit should introduce as little non-revert changes >> as possible. I'm planning to improve that example later in a separated >> commit. > > You have to fix the warning as part of this series. OK >> Can you take a look at this commit despite your bot warning, please? > > If 'CRU' is a hardware block, then I don't think most of the revert is > right to use 'simple-bus'. > > If you want to just replace 'offset' with 'reg', then I'd be happy to > see that. I've been pushing child nodes of syscons in that direction. Well, it's a revert, not a fix, it goes from totally wrong to semi-wrong ;) Let me send V3. 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[194.187.74.233]) by smtp.googlemail.com with ESMTPSA id bj40sm28460ljb.106.2021.10.08.13.52.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 08 Oct 2021 13:52:11 -0700 (PDT) Subject: Re: [PATCH V2 linux-pinctrl 1/2] Revert "dt-bindings: pinctrl: bcm4708-pinmux: rework binding to use syscon" To: Rob Herring Cc: Linus Walleij , devicetree@vger.kernel.org, Ray Jui , bcm-kernel-feedback-list@broadcom.com, Scott Branden , =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= , linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org References: <20211008153939.19685-1-zajec5@gmail.com> <1633722536.868012.3211952.nullmailer@robh.at.kernel.org> From: =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= Message-ID: <25e875ff-ec4d-0872-4e56-2cd528ad3ee8@gmail.com> Date: Fri, 8 Oct 2021 22:52:09 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211008_135213_547025_13C76ADF X-CRM114-Status: GOOD ( 26.84 ) 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 T24gMDguMTAuMjAyMSAyMjo0OSwgUm9iIEhlcnJpbmcgd3JvdGU6Cj4gT24gRnJpLCBPY3QgMDgs IDIwMjEgYXQgMTA6MDg6NDZQTSArMDIwMCwgUmFmYcWCIE1pxYJlY2tpIHdyb3RlOgo+PiBPbiAw OC4xMC4yMDIxIDIxOjQ4LCBSb2IgSGVycmluZyB3cm90ZToKPj4+IE9uIEZyaSwgMDggT2N0IDIw MjEgMTc6Mzk6MzggKzAyMDAsIFJhZmHFgiBNacWCZWNraSB3cm90ZToKPj4+PiBGcm9tOiBSYWZh xYIgTWnFgmVja2kgPHJhZmFsQG1pbGVja2kucGw+Cj4+Pj4KPj4+PiBUaGlzIHJldmVydHMgY29t bWl0IDJhZTgwOTAwZjIzOTQ4NDA2OTU2OTM4MGUxZmM0MzQwZmQ2ZTAwODkuCj4+Pj4KPj4+PiBN eSByZXdvcmsgd2FzIHVubmVlZGVkICYgd3JvbmcuIEl0IHJlcGxhY2VkIGEgY2xlYXIgJiBjb3Jy ZWN0ICJyZWciCj4+Pj4gcHJvcGVydHkgdXNhZ2Ugd2l0aCBhIGN1c3RvbSAib2Zmc2V0IiBvbmUu Cj4+Pj4KPj4+PiBCYWNrIHRoZW4gSSBkaWRuJ3QgdW5kZXJzdGFuZCBob3cgdG8gcHJvcGVybHkg aGFuZGxlIENSVSBibG9jayBiaW5kaW5nLgo+Pj4+IEkgaGVhcmQgLyByZWFkIGFib3V0IHN5c2Nv biBhbmQgdHJpZWQgdG8gdXNlIGl0IGluIGEgdG90YWxseSBpbnZhbGlkCj4+Pj4gd2F5LiBUaGF0 IGNoYW5nZSBhbHNvIG1pc3NlZCBSb2IncyByZXZpZXcgKG9idmlvdXNseSkuCj4+Pj4KPj4+PiBO b3J0aHN0YXIncyBwaW4gY29udHJvbGxlciBpcyBhIHNpbXBsZSBjb25zaXN0ZW50IGhhcmR3YXJl IGJsb2NrIHRoYXQKPj4+PiBjYW4gYmUgY2xlYW5seSBtYXBwZWQgdXNpbmcgYSAweDI0IGxvbmcg cmVnIHNwYWNlLgo+Pj4+Cj4+Pj4gU2luY2UgdGhlIHJld29yayBjb21taXQgdGhlcmUgd2Fzbid0 IGFueSBmb2xsb3cgdXAgbW9kaWZ5aW5nIGluLWtlcm5lbAo+Pj4+IERUUyBmaWxlcyB0byB1c2Ug dGhlIG5ldyBiaW5kaW5nLiBCcm9hZGNvbSBhbHNvIGlzbid0IGtub3duIHRvIHVzZSB0aGF0Cj4+ Pj4gYnVnZ2VkIGJpbmRpbmcuIFRoZXJlIGlzIGNsb3NlIHRvIHplcm8gY2hhbmNlIHRoaXMgcmV2 ZXJ0IG1heSBhY3R1YWxseQo+Pj4+IGNhdXNlIHByb2JsZW1zIC8gcmVncmVzc2lvbnMuCj4+Pj4K Pj4+PiBUaGlzIGNvbW1pdCBpcyBhIHNpbXBsZSByZXZlcnQuIEV4YW1wbGUgYmluZGluZyBtYXkg KHNob3VsZCkgYmUgdXBkYXRlZAo+Pj4+IC8gY2xlYW5lZCB1cCBidXQgdGhhdCBjYW4gYmUgaGFu ZGxlZCBzZXBhcmF0ZWx5Lgo+Pj4+Cj4+Pj4gU2lnbmVkLW9mZi1ieTogUmFmYcWCIE1pxYJlY2tp IDxyYWZhbEBtaWxlY2tpLnBsPgo+Pj4+IC0tLQo+Pj4+IFYyOiBVcGRhdGUgYnJjbSxjcnUueWFt bCB0byBhdm9pZCBuZXcgeWFtbGxpbnQgd2FybmluZ3MvZXJyb3JzCj4+Pj4gLS0tCj4+Pj4gICAg Li4uL2RldmljZXRyZWUvYmluZGluZ3MvbWZkL2JyY20sY3J1LnlhbWwgICAgIHwgMTEgKysrKyst LS0tCj4+Pj4gICAgLi4uL2JpbmRpbmdzL3BpbmN0cmwvYnJjbSxucy1waW5tdXgueWFtbCAgICAg IHwgMjMgKysrKysrKysrKystLS0tLS0tLQo+Pj4+ICAgIDIgZmlsZXMgY2hhbmdlZCwgMTkgaW5z ZXJ0aW9ucygrKSwgMTUgZGVsZXRpb25zKC0pCj4+Pj4KPj4+Cj4+PiBNeSBib3QgZm91bmQgZXJy b3JzIHJ1bm5pbmcgJ21ha2UgRFRfQ0hFQ0tFUl9GTEFHUz0tbSBkdF9iaW5kaW5nX2NoZWNrJwo+ Pj4gb24geW91ciBwYXRjaCAoRFRfQ0hFQ0tFUl9GTEFHUyBpcyBuZXcgaW4gdjUuMTMpOgo+Pj4K Pj4+IHlhbWxsaW50IHdhcm5pbmdzL2Vycm9yczoKPj4+Cj4+PiBkdHNjaGVtYS9kdGMgd2Fybmlu Z3MvZXJyb3JzOgo+Pj4gL2J1aWxkcy9yb2JoZXJyaW5nL2xpbnV4LWR0LXJldmlldy9Eb2N1bWVu dGF0aW9uL2RldmljZXRyZWUvYmluZGluZ3MvcGluY3RybC9icmNtLG5zLXBpbm11eC5leGFtcGxl LmR0LnlhbWw6IGNydUAxODAwYzEwMDogJG5vZGVuYW1lOjA6ICdjcnVAMTgwMGMxMDAnIGRvZXMg bm90IG1hdGNoICdeKFthLXpdW2EtejAtOVxcLV0rLWJ1c3xidXN8c29jfGF4aXxhaGJ8YXBiKShA WzAtOWEtZl0rKT8kJwo+Pj4gCUZyb20gc2NoZW1hOiAvdXNyL2xvY2FsL2xpYi9weXRob24zLjgv ZGlzdC1wYWNrYWdlcy9kdHNjaGVtYS9zY2hlbWFzL3NpbXBsZS1idXMueWFtbAo+Pgo+PiBJdCdz IHdhcm5pbmcgd2UgYWxyZWFkeSBoYXZlIGFuZCBub3Qgc29tZXRoaW5nIGludHJvZHVjZWQgYnkg dGhpcwo+PiByZXZlcnQuCj4gCj4gV2UgZG9uJ3QgYWxsb3cgd2FybmluZ3MsIHNvIHlvdSdyZSBz YXlpbmcgdGhpcyBvbmUgd2FzIHdhcm5pbmcgYmVmb3JlPwoKWWVzLgoKCj4+IEFzIGEgcmV2ZXJ0 IHRoaXMgY29tbWl0IHNob3VsZCBpbnRyb2R1Y2UgYXMgbGl0dGxlIG5vbi1yZXZlcnQgY2hhbmdl cwo+PiBhcyBwb3NzaWJsZS4gSSdtIHBsYW5uaW5nIHRvIGltcHJvdmUgdGhhdCBleGFtcGxlIGxh dGVyIGluIGEgc2VwYXJhdGVkCj4+IGNvbW1pdC4KPiAKPiBZb3UgaGF2ZSB0byBmaXggdGhlIHdh cm5pbmcgYXMgcGFydCBvZiB0aGlzIHNlcmllcy4KCk9LCgoKPj4gQ2FuIHlvdSB0YWtlIGEgbG9v ayBhdCB0aGlzIGNvbW1pdCBkZXNwaXRlIHlvdXIgYm90IHdhcm5pbmcsIHBsZWFzZT8KPiAKPiBJ ZiAnQ1JVJyBpcyBhIGhhcmR3YXJlIGJsb2NrLCB0aGVuIEkgZG9uJ3QgdGhpbmsgbW9zdCBvZiB0 aGUgcmV2ZXJ0IGlzCj4gcmlnaHQgdG8gdXNlICdzaW1wbGUtYnVzJy4KPiAKPiBJZiB5b3Ugd2Fu dCB0byBqdXN0IHJlcGxhY2UgJ29mZnNldCcgd2l0aCAncmVnJywgdGhlbiBJJ2QgYmUgaGFwcHkg dG8KPiBzZWUgdGhhdC4gSSd2ZSBiZWVuIHB1c2hpbmcgY2hpbGQgbm9kZXMgb2Ygc3lzY29ucyBp biB0aGF0IGRpcmVjdGlvbi4KCldlbGwsIGl0J3MgYSByZXZlcnQsIG5vdCBhIGZpeCwgaXQgZ29l cyBmcm9tIHRvdGFsbHkgd3JvbmcgdG8gc2VtaS13cm9uZwo7KSBMZXQgbWUgc2VuZCBWMy4KCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1r ZXJuZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpo dHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJu ZWwK