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 AA58CECAAA1 for ; Tue, 6 Sep 2022 07:24:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232227AbiIFHYe (ORCPT ); Tue, 6 Sep 2022 03:24:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42740 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238452AbiIFHYc (ORCPT ); Tue, 6 Sep 2022 03:24:32 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D1639A46E; Tue, 6 Sep 2022 00:24:30 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 90D63B815F8; Tue, 6 Sep 2022 07:24:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 008B1C433D6; Tue, 6 Sep 2022 07:24:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1662449068; bh=5wZinesV4YM9YNTUcdPQv7G9QwZizzKWTyrHa7y87Tc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=sTT96vSHWRXT0vBdz5QioPuBOFK5K6bkOmIcXVbhQ2b30Wenkj+0AKsch6y81nGCo 437YFLRNuB61JpA5g9lxEAdUDGrlP+Jf1lw6XH5vB8oFcm0kES6CLoqluM63oEOnKK MAq2LtZRA1LePUtBrZ/p1GrWGmC81qC7ij8EqTvLa7Eqy29LKyyLcNz6vK4N9scGE2 3JmVtXyE2gWEJSx2dBMG2UM1d/Aw0hxzHVDKhmyqqK2ReVu741lTkqBD+NCBvg2+wy OkWdQzzckr8sJyKlvRvKs69USm589OAs8C5PDCi1JYQ0uTQ/pbWFxqZr1IWvMTwzx4 9s74C8z1tgmrA== Received: by pali.im (Postfix) id EA23972A; Tue, 6 Sep 2022 09:24:24 +0200 (CEST) Date: Tue, 6 Sep 2022 09:24:24 +0200 From: Pali =?utf-8?B?Um9ow6Fy?= To: Krzysztof Kozlowski Cc: Florian Fainelli , Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , Rob Herring , Krzysztof Kozlowski , Marek Behun , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] ARM: dts: turris-omnia: Add mcu node Message-ID: <20220906072424.fmjup62f2hfilj3t@pali> References: <20220819131152.6513-1-pali@kernel.org> <20220831142809.lcmnv3l4rnulo522@pali> <20220903152735.2ga3iwrivh6zhibf@pali> <30d3f753-187f-4a3f-c14a-f3b003f23773@gmail.com> <7a43aa79-9c40-867c-c585-3bb448a54647@linaro.org> <20220905171226.fla6i5cgrx2lbq3u@pali> <1750926a-9177-a26f-1219-c85eaf676890@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1750926a-9177-a26f-1219-c85eaf676890@linaro.org> User-Agent: NeoMutt/20180716 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Tuesday 06 September 2022 08:34:42 Krzysztof Kozlowski wrote: > On 05/09/2022 19:12, Pali Rohár wrote: > > On Monday 05 September 2022 18:34:48 Krzysztof Kozlowski wrote: > >> On 05/09/2022 18:19, Florian Fainelli wrote: > >>> > >>> > >>> On 9/3/2022 8:27 AM, Pali Rohár wrote: > >>>> On Friday 02 September 2022 00:45:58 Andrew Lunn wrote: > >>>>> On Wed, Aug 31, 2022 at 04:28:09PM +0200, Pali Rohár wrote: > >>>>>> PING? > >>>>>> > >>>>>> On Friday 19 August 2022 15:11:52 Pali Rohár wrote: > >>>>>>> At i2c address 0x2a is MCU command interface which provides access to GPIOs > >>>>>>> connected to Turris Omnia MCU. So define mcu node in Turris Omnia DTS file. > >>>>>>> > >>>>>>> Signed-off-by: Pali Rohár > >>>>>>> > >>>>>>> --- > >>>>>>> Same change was already sent to U-Boot project together with driver. As > >>>>>>> Turris Omnia DTS file is shared between Linux kernel U-Boot, I'm sending > >>>>>>> this change also in Linux. There is a plan to write also Linux driver for > >>>>>>> Turris Omnia MCU, like there is already in U-Boot. > >>>>>>> > >>>>>>> https://source.denx.de/u-boot/u-boot/-/commit/832738974806e6264a3d0ac2aaa92d0f662fd128 > >>>>>>> https://source.denx.de/u-boot/u-boot/-/blob/master/drivers/gpio/turris_omnia_mcu.c > >>>>>>> --- > >>>>>>> arch/arm/boot/dts/armada-385-turris-omnia.dts | 8 +++++++- > >>>>>>> 1 file changed, 7 insertions(+), 1 deletion(-) > >>>>>>> > >>>>>>> diff --git a/arch/arm/boot/dts/armada-385-turris-omnia.dts b/arch/arm/boot/dts/armada-385-turris-omnia.dts > >>>>>>> index f4878df39753..f655e9229d68 100644 > >>>>>>> --- a/arch/arm/boot/dts/armada-385-turris-omnia.dts > >>>>>>> +++ b/arch/arm/boot/dts/armada-385-turris-omnia.dts > >>>>>>> @@ -184,7 +184,13 @@ > >>>>>>> #size-cells = <0>; > >>>>>>> reg = <0>; > >>>>>>> > >>>>>>> - /* STM32F0 command interface at address 0x2a */ > >>>>>>> + /* MCU command i2c API */ > >>>>>>> + mcu: mcu@2a { > >>>>>>> + compatible = "cznic,turris-omnia-mcu"; > >>>>>>> + reg = <0x2a>; > >>>>>>> + gpio-controller; > >>>>>>> + #gpio-cells = <3>; > >>>>>>> + }; > >>>>> > >>>>> Please document the binding, preferably in yaml. > >>>> > >>>> I'm not going to send any new yaml dt binding document as I see that > >>>> dt bindings is clearly deprecated project. Either patches for dt > >>>> bindings are waiting without any answer for months (maybe year?) or > >>>> patches are ignored/not accepted by beyond reasons or there are request > >>>> for changes which cannot work on the real hardware or that new yaml > >>>> cannot be parsed/validated due to ton of bugs in other schemas. > >>> > >>> These are some pretty hard statements that are not nearly true, maybe > >>> they are based upon your past experience, but Rob and Krysztof provide > >>> feedback within a few days at most on DT bindings and DTS files. > >> > >> Pali, you wrote in the past that you cannot run one command to install > >> dtschema ("pip") thus for you this automated testing is > >> difficult/broken/non working. If running one "pip" command is not > >> possible, what I can say more? Shall I login to your machine and set it > >> up? Or did you configure your machine that way, that it is not possible > >> to run one pip command? > > > > Sorry no, it is too late. I have already lost interested in it. For me > > it is like a ride on the dead horse. > > > >> Whether the patches are waiting for months and years is difficult to > >> address to, without actual links. Because for sure you will be able to > >> find one patch which was missed in our inboxes and you did not get an > >> answer... With Rob we both work much more than reasonable/healthy 8h > >> per day... Yet I recall you always received feedback, just not always > >> what you expected or wanted. > > > > Now I have replied to one example email without a reaction. > > Which was not a patch. You asked us for some knowledge and Rob provided > you answers. Or maybe you think that our job is to solve each technical > problem of everyone in the world till asking person is happy? Sounds > like nice job. :) No and no. You were unhappy with my last patches, so this time I first send an email asking how to do it prevent sending something which would be rejected. And now you are saying that it is a technical problem, not answer. Nice way how to demotivate to try to do any new contribution into this project area. > > Another > > example is this https://github.com/devicetree-org/dt-schema/pull/64 > > which completely blocked any improvements which I proposed in PCIe core > > code for fixing PCIe state machine. After half of year of waiting I > > decided to stop any work on this as I see it is dead those schemas. > > It finished with Rob comments, so ball is on your side, isn't it? Yes, after half o year? And I should continue to wait another half year for another round? Why? And why should I wait again? Demotivate? > > Other examples are that received feedback suggest to do change which > > does not work on the real hardware. So yes, I cannot accept, expect or > > want something like that. Schema which works in that ultra-supper-duper > > software but DTS written according to it does not work on the real > > hardware is for me useless... > > > >> This binding here was never sent to mailing list: > >> https://lore.kernel.org/all/?q=cznic%2Cturris-omnia-mcu > >> > >>>> Sorry, this is just a waste of time and energy to write new those yamls > >>>> as it does not bring any value. > >> > >> It brings quite nice value - allows to check whether your bindings and > >> your DTS are correct. Any difficulty to install and run dtschema is not > >> equal to "does not bring any value"... > > > > It just took lot of my time and did nothing useful. Hence for it it has > > zero value. > > Sorry to hear. When I was very, very small, C also took a lot of my time > and did nothing useful. Nothing useful in that stage of my knowledge, of > course. > > > Best regards, > Krzysztof Seems that you just want to demotivate, nothing more.