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dkim=none (message not signed) header.d=none;dmarc=fail action=none header.from=foss.st.com; Received-SPF: Fail (protection.outlook.com: domain of foss.st.com does not designate 164.130.1.44 as permitted sender) receiver=protection.outlook.com; client-ip=164.130.1.44; helo=smtpO365.st.com; Received: from smtpO365.st.com (164.130.1.44) by DB5PEPF00014B8A.mail.protection.outlook.com (10.167.8.198) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9137.12 via Frontend Transport; Wed, 17 Sep 2025 15:10:17 +0000 Received: from SHFDAG1NODE1.st.com (10.75.129.69) by smtpO365.st.com (10.250.44.67) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.57; Wed, 17 Sep 2025 17:03:13 +0200 Received: from [10.48.87.62] (10.48.87.62) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.57; Wed, 17 Sep 2025 17:10:16 +0200 Message-ID: Date: Wed, 17 Sep 2025 17:10:16 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 4/7] video: stm32: ltdc: support new hardware version for STM32MP25 SoC To: Raphael Gallais-Pou , Tom Rini , Kamil Lulko , Dillon Min , Patrick Delaunay , Anatolij Gustschin , Simon Glass , Sumit Garg , Philippe Cornu , Yannick Fertre CC: , References: <20250904-master-v3-0-b42847884974@foss.st.com> <20250904-master-v3-4-b42847884974@foss.st.com> <3b8a1653-9cf9-4107-b2a8-2c2f639a5ddb@foss.st.com> <4cd5e70d-875c-42da-859c-524ba439a171@foss.st.com> Content-Language: en-US From: Patrice CHOTARD In-Reply-To: <4cd5e70d-875c-42da-859c-524ba439a171@foss.st.com> Content-Type: text/plain; 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Between the v3 and v4 versions > of the Linux series: > https://lore.kernel.org/all/20250822-drm-misc-next-v5-0-9c825e28f733@foss.st.com/ > > Since U-Boot is based on the Linux device-tree, I figured it might follow the > added compatible. > Now the reason why the "st,stm32mp255-ltdc" has been added is because on the > STM32MP255 (and bigger) the LTDC needs 4 clocks, whether on the STM32MP251 and > smaller SoCs it only needs two. Thus the two new compatibles. Furthermore there > is features depending on the SoC version which will be added in the near future. > Best regards, Raphaël >> >>> { } >>> }; >>> >>> > Thanks for clarification Reviewed-by: Patrice Chotard Thanks Patrice