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Mon, 19 Apr 2021 16:04:04 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id BB42B10002A; Mon, 19 Apr 2021 16:04:03 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag2node3.st.com [10.75.127.6]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 845B92200B1; Mon, 19 Apr 2021 16:04:03 +0200 (CEST) Received: from lmecxl0912.lme.st.com (10.75.127.49) by SFHDAG2NODE3.st.com (10.75.127.6) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 19 Apr 2021 16:04:02 +0200 Subject: Re: [PATCH 12/13] ARM: dts: stm32: fix DSI port node on STM32MP15 To: Arnd Bergmann CC: Ahmad Fatoum , Rob Herring , Marek Vasut , Jagan Teki , Manivannan Sadhasivam , Marcin Sloniewski , Linux ARM , DTML , , Linux Kernel Mailing List , Lee Jones , Jakub Kicinski References: <20210415101037.1465-1-alexandre.torgue@foss.st.com> <20210415101037.1465-13-alexandre.torgue@foss.st.com> <96da49dc-f24d-aa12-e1d8-39b5a5b6fbc9@foss.st.com> From: Alexandre TORGUE Message-ID: Date: Mon, 19 Apr 2021 16:04:01 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-Originating-IP: [10.75.127.49] X-ClientProxiedBy: SFHDAG2NODE1.st.com (10.75.127.4) To SFHDAG2NODE3.st.com (10.75.127.6) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391, 18.0.761 definitions=2021-04-19_10:2021-04-19, 2021-04-19 signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210419_070416_227926_BBC4893E X-CRM114-Status: GOOD ( 29.31 ) 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: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 4/19/21 3:57 PM, Arnd Bergmann wrote: > On Thu, Apr 15, 2021 at 2:23 PM Alexandre TORGUE > wrote: >> On 4/15/21 12:43 PM, Ahmad Fatoum wrote: >>> On 15.04.21 12:10, Alexandre Torgue wrote: >>>> Running "make dtbs_check W=1", some warnings are reported concerning >>>> DSI. This patch reorder DSI nodes to avoid: >>>> >>>> soc/dsi@5a000000: unnecessary #address-cells/#size-cells without >>>> "ranges" or child "reg" property >>> >>> This reverts parts of commit 9c32f980d9 ("ARM: dts: stm32: preset >>> stm32mp15x video #address- and #size-cells"): >>> >>> The cell count for address and size is defined by the binding and not >>> something a board would change. Avoid each board adding this >>> boilerplate by having the cell size specification in the SoC DTSI. >>> >>> >>> The DSI can have child nodes with a unit address (e.g. a panel) and ones >>> without (ports { } container). ports is described in the dtsi, panels are >>> described in the dts if available. >>> >>> Apparently, the checker is fine with >>> ports { >>> #address-cells = <1>; >>> #size-cells = <0>; >>> }; >>> >>> I think my rationale for the patch above was sound, so I think the checker >>> taking offense at the DSI cells here should be considered a false positive. >> >> If it's a "false positive" warning then we need to find a way to not >> print it out. Else, it'll be difficult to distinguish which warnings are >> "normal" and which are not. This question could also be applied to patch[3]. >> >> Arnd, Rob what is your feeling about this case ? > > I don't have a strong opinion on this either way, but I would just > not apply this one for 5.13 in this case. Rob, Alexandre, please > let me know if I should apply the other patches before the > merge window, I usually don't mind taking bugfixes late before the > merge window, but I still want some level of confidence that they > are actually correct. For me, we can keep this series for the v5.14 cycle. regards alex > > Ahmad, if you feel strongly about this particular issue, would you like > to suggest a patch for the checker? > > Arnd > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel