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[192.26.37.52]) by smtp.gmail.com with ESMTPSA id z22sm25865328edx.72.2020.07.07.02.55.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 07 Jul 2020 02:55:49 -0700 (PDT) From: Adrian Fiergolski X-Google-Original-From: Adrian Fiergolski Subject: Re: [PATCH v2 2/2] dt-bindings: Add documentation for SPI daisy chain driver. To: Mark Brown , Geert Uytterhoeven Cc: Lukas Wunner , Rob Herring , linux-spi , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Linux Kernel Mailing List References: <202007040833.xIqR5rAw%lkp@intel.com> <20200706092247.20740-1-adrian.fiergolski@fastree3d.com> <20200706092247.20740-2-adrian.fiergolski@fastree3d.com> <20200706162246.GC6176@sirena.org.uk> Message-ID: <853fa4a4-ce2f-0503-2fe7-7b34b352b6e2@fastree3d.com> Date: Tue, 7 Jul 2020 11:55:48 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: <20200706162246.GC6176@sirena.org.uk> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit Content-Language: en-GB Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Geert and Mark, Thank you for your comments. I will try to address them in the next replies. On 06.07.2020 18:22, Mark Brown wrote: > On Mon, Jul 06, 2020 at 05:32:51PM +0200, Geert Uytterhoeven wrote: > >> However, that information would need to be added to each driver only once. >> With your proposal, it has to be added to all affected nodes of all DTSes >> of all users. > Right, these are fixed properties of the silicon which we know simply > from knowing which device we have - there is no need to put them in DT > at all. I see. I agree with you. My concern was just the lack of compatibility with the existing drivers. I will try to add daisy_chain information to spi_driver struct in version v3 of the patch.