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Fri, 22 Aug 2025 15:01:17 +0200 (MEST) Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id DDE8E4002D; Fri, 22 Aug 2025 14:59:59 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node3.st.com [10.75.129.71]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 1B58571EE06; Fri, 22 Aug 2025 14:59:03 +0200 (CEST) Received: from [10.48.87.178] (10.48.87.178) by SHFDAG1NODE3.st.com (10.75.129.71) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Fri, 22 Aug 2025 14:59:02 +0200 Message-ID: <03b4732e-1545-470a-b6ce-bda68c7477d4@foss.st.com> Date: Fri, 22 Aug 2025 14:59:01 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 09/13] arm64: dts: st: add ltdc support on stm32mp251 To: Raphael Gallais-Pou , Philippe Cornu , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , "Krzysztof Kozlowski" , Conor Dooley , "Maxime Coquelin" , Alexandre Torgue , Catalin Marinas , Will Deacon , Christophe Roullier CC: , , , , References: <20250821-drm-misc-next-v4-0-7060500f8fd3@foss.st.com> <20250821-drm-misc-next-v4-9-7060500f8fd3@foss.st.com> Content-Language: en-US From: Yannick FERTRE In-Reply-To: <20250821-drm-misc-next-v4-9-7060500f8fd3@foss.st.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-Originating-IP: [10.48.87.178] X-ClientProxiedBy: EQNCAS1NODE4.st.com (10.75.129.82) To SHFDAG1NODE3.st.com (10.75.129.71) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-08-22_04,2025-08-20_03,2025-03-28_01 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250822_140133_104173_CC2CECAB X-CRM114-Status: GOOD ( 13.67 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Raphael, Thanks for the patch. Acked-by: Yannick Fertre Le 21/08/2025 à 13:08, Raphael Gallais-Pou a écrit : > The LCD-TFT Display Controller (LTDC) handles display composition, > scaling and rotation. It provides a parallel digital RGB flow to be > used by display interfaces. > > Add the LTDC node. > > Signed-off-by: Raphael Gallais-Pou > --- > arch/arm64/boot/dts/st/stm32mp251.dtsi | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi > index 303abf915b8e489671b51a8c832041c14a42ecb8..372a99d9cc5c3730e8fbeddeb6134a3b18d938b6 100644 > --- a/arch/arm64/boot/dts/st/stm32mp251.dtsi > +++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi > @@ -1576,6 +1576,18 @@ dcmipp: dcmipp@48030000 { > status = "disabled"; > }; > > + ltdc: display-controller@48010000 { > + compatible = "st,stm32mp251-ltdc"; > + reg = <0x48010000 0x400>; > + interrupts = , > + ; > + clocks = <&rcc CK_KER_LTDC>, <&rcc CK_BUS_LTDC>; > + clock-names = "lcd", "bus"; > + resets = <&rcc LTDC_R>; > + access-controllers = <&rifsc 80>; > + status = "disabled"; > + }; > + > combophy: phy@480c0000 { > compatible = "st,stm32mp25-combophy"; > reg = <0x480c0000 0x1000>; >