From patchwork Mon Jan 15 13:20:08 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Raphael Gallais-Pou X-Patchwork-Id: 13519633 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 92D9DC4707B for ; Mon, 15 Jan 2024 13:22:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=X1P0ytQMSsGcYeaUM6/XL2DPPSI8C89wNjk+nfe2aEg=; b=a0hUrW3P7E8VvK 4ZstLinemums+rlOQKnNWktn3kLRT8wl/Oml+NZB4muzaZUP3lPZpyyl9yDSqLTyzEWsudIakcN9x PFJ9zt8f47BJ9csJkSUF3QmkCST1PbEBWKQIKO7PQXJ3BSZsHkHc2v0RuAYyDcMUVLtmwIJylGWA2 O+ck8xdbFYnCjI+1tYjnJv17fVKFzM5D6j464Iz+3YjaI+ka9t0HNBNp9qmOHr7RK+UGytBWqNHeN +qjgoT/4qsH7gc1N01RIwVmdO02+TbtWJjki8QtfIVsJ6it0NBlBzNvKqZp0AmMLfs5rHa3F+BOdB 8+wTRkXR6y10bWsILLFw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rPMuc-0093jp-06; Mon, 15 Jan 2024 13:21:58 +0000 Received: from mx08-00178001.pphosted.com ([91.207.212.93] helo=mx07-00178001.pphosted.com) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rPMuU-0093fG-1s for linux-arm-kernel@lists.infradead.org; Mon, 15 Jan 2024 13:21:53 +0000 Received: from pps.filterd (m0046660.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 40FCY0x1010889; Mon, 15 Jan 2024 14:21:34 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s= selector1; bh=xZu5Y1KF2qfLRVwfS+3QyJGle5Zh1Cud7ijy5NKaUqM=; b=TL dh6YWm3j3dbM+L32PyLKFEvAI2cVo5eafqYJK8khSgWCxB7qOqCQ6tMFYVPgRVO8 H6Z/1tljDR16UkNTH5q+XyQWy2xxFrq829k0d2JV1pZwiFpGgLNhhU93AyyfuL/U o/mGvBtvkVTPawb0MeNi+ygVaF36cLNiiczNiEqJp1y8mi3AuYsCCNVPZBoSwoKd HwXrvlsgbsI+AZA2hDh9WHGzHtFQSsgDwIrGPVE8ch8cY12okejQqtSef0FAHIwa SNcStJHSbKYPuTwatpBXTJWzdIVEIPQUxX88M4eHw0hFHd0v7qMQ6Z4B6s6G4+I7 lTYZBr474n7sZJH5UulQ== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3vkmbh0n0k-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 15 Jan 2024 14:21:34 +0100 (CET) Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 471AC100057; Mon, 15 Jan 2024 14:21:34 +0100 (CET) Received: from Webmail-eu.st.com (shfdag1node2.st.com [10.75.129.70]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 3DC722831A8; Mon, 15 Jan 2024 14:21:34 +0100 (CET) Received: from localhost (10.129.178.37) by SHFDAG1NODE2.st.com (10.75.129.70) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Mon, 15 Jan 2024 14:21:33 +0100 From: Raphael Gallais-Pou To: Yannick Fertre , Raphael Gallais-Pou , Philippe Cornu , David Airlie , Daniel Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Coquelin , Alexandre Torgue , Philipp Zabel CC: , , , , Subject: [PATCH v3 5/6] arm64: dts: st: add lvds support on stm32mp255 Date: Mon, 15 Jan 2024 14:20:08 +0100 Message-ID: <20240115132009.101718-6-raphael.gallais-pou@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240115132009.101718-1-raphael.gallais-pou@foss.st.com> References: <20240115132009.101718-1-raphael.gallais-pou@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.129.178.37] X-ClientProxiedBy: EQNCAS1NODE3.st.com (10.75.129.80) To SHFDAG1NODE2.st.com (10.75.129.70) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-05_08,2024-01-05_01,2023-05-22_02 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240115_052150_897516_7686E6AD X-CRM114-Status: GOOD ( 16.80 ) 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 This patch adds LVDS support on stm32mp255. The LVDS is used on STM32MP2 as a display interface. LVDS PLL clock is binded to the LTDC input clock. Signed-off-by: Raphael Gallais-Pou --- Changes in v3: - Change the compatible to show SoC specificity Changes in v2: - Move patch to stm32mp255.dtsi after internal discussions --- arch/arm64/boot/dts/st/stm32mp255.dtsi | 17 +++++++++++++++++ drivers/gpu/drm/stm/lvds.c | 2 +- 2 files changed, 18 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/st/stm32mp255.dtsi b/arch/arm64/boot/dts/st/stm32mp255.dtsi index e6fa596211f5..68f60da32126 100644 --- a/arch/arm64/boot/dts/st/stm32mp255.dtsi +++ b/arch/arm64/boot/dts/st/stm32mp255.dtsi @@ -7,3 +7,20 @@ / { }; + +<dc { + clocks = <&rcc CK_BUS_LTDC>, <&rcc CK_KER_LTDC>, <&lvds 0>; + clock-names = "bus", "lcd", "lvds"; +}; + +&rifsc { + lvds: lvds@48060000 { + #clock-cells = <0>; + compatible = "st,stm32mp25-lvds"; + reg = <0x48060000 0x2000>; + clocks = <&rcc CK_BUS_LVDS>, <&rcc CK_KER_LVDSPHY>; + clock-names = "pclk", "ref"; + resets = <&rcc LVDS_R>; + status = "disabled"; + }; +}; diff --git a/drivers/gpu/drm/stm/lvds.c b/drivers/gpu/drm/stm/lvds.c index beb8b7e437a0..5808db1a5cdf 100644 --- a/drivers/gpu/drm/stm/lvds.c +++ b/drivers/gpu/drm/stm/lvds.c @@ -1198,7 +1198,7 @@ static int lvds_remove(struct platform_device *pdev) static const struct of_device_id lvds_dt_ids[] = { { - .compatible = "st,stm32-lvds", + .compatible = "st,stm32mp25-lvds", .data = NULL }, { /* sentinel */ }