From mboxrd@z Thu Jan 1 00:00:00 1970 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 0D849C369D5 for ; Mon, 21 Apr 2025 12:21:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:CC:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=HRhwr6bsuUpHJokkn7OOYPwCV0G4EhNX1INeaCHd44E=; b=GVxayE7FGfdRhhF3PGByfhI0pc HoU5ke9zRskogBy5MnCzk23kd3gZDeBB6sbRzYDffiyaOBNMhdKMevsIV6opZKQ/6gmaDu2S6wDVF 4cj/p21eSgQxviPlbepkiiTNCBzDp6bqI5TQq9BR07iohHjiLOhYBrYwhV/Ump970QDn4RloDWE7U NMQx5451ZipqU1nI6dReJNAylH0Z6Y9S0TLs6Xu6b3RpIKTwUOIFbmpIQ0VlvuaBzOnhKAE4KnGSF L0nj9nSTyT3OO+pCNNahss1gkz3wGh7LyCQv0OhaUIV2ZOngq9sgCFeKPZdnoZtXaC/VGFzs9MP0n 87B3Zp6g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1u6q8n-00000004G0i-3B4e; Mon, 21 Apr 2025 12:20:49 +0000 Received: from fllvem-ot04.ext.ti.com ([198.47.19.246]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1u6q6v-00000004FjK-0Mwf for linux-arm-kernel@lists.infradead.org; Mon, 21 Apr 2025 12:18:54 +0000 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllvem-ot04.ext.ti.com (8.15.2/8.15.2) with ESMTPS id 53LCImUA1545741 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 21 Apr 2025 07:18:48 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1745237928; bh=HRhwr6bsuUpHJokkn7OOYPwCV0G4EhNX1INeaCHd44E=; h=Date:Subject:To:CC:References:From:In-Reply-To; b=BZKn1IcjY/qIX90o+ZurQTtKZqjPrgXf4wjt8S5Xx7qjZ5A8ejXuDw0A8qkoSAom3 ENz+2z4Ak8AqrSSNbVO0nzfGcbStX1yWOGGClkkHz5FfQWb8GzwXK2jYIfn1xcv7v6 bFrCTZKtFAuyIv28c1EtsMqvom3owEPl2ckMubHA= Received: from DLEE112.ent.ti.com (dlee112.ent.ti.com [157.170.170.23]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 53LCImtg061686 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 21 Apr 2025 07:18:48 -0500 Received: from DLEE102.ent.ti.com (157.170.170.32) by DLEE112.ent.ti.com (157.170.170.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Mon, 21 Apr 2025 07:18:47 -0500 Received: from lelvsmtp5.itg.ti.com (10.180.75.250) by DLEE102.ent.ti.com (157.170.170.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Mon, 21 Apr 2025 07:18:47 -0500 Received: from [10.24.72.182] (jayesh-hp-z2-tower-g5-workstation.dhcp.ti.com [10.24.72.182]) by lelvsmtp5.itg.ti.com (8.15.2/8.15.2) with ESMTP id 53LCIiHl032378; Mon, 21 Apr 2025 07:18:45 -0500 Message-ID: <94e79e4b-ff72-49ba-bcd7-ba69e2296d3b@ti.com> Date: Mon, 21 Apr 2025 17:48:43 +0530 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/7] Add DSI display support for TI's Jacinto platforms To: "Kumar, Udit" , , , , CC: , , , , , References: <20250411105155.303657-1-j-choudhary@ti.com> <02f1912f-0a05-4446-923a-7935ed305cb3@ti.com> Content-Language: en-US From: Jayesh Choudhary In-Reply-To: <02f1912f-0a05-4446-923a-7935ed305cb3@ti.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250421_051853_255911_5F5E7824 X-CRM114-Status: GOOD ( 13.77 ) 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 Hello Udit, On 19/04/25 14:23, Kumar, Udit wrote: > > On 4/11/2025 4:21 PM, Jayesh Choudhary wrote: >> Hello All, >> >> This series adds the dts support to enable DSI on 3 platforms for TI >> SoCs: >> - J784S4-EVM >> - J721S2-EVM >> - AM68-SK >> >> [..] >> >> NOTE: For higher resolutions, we need bigger CMA region. >> But for validation, the default value is enough. > > I am not sure , how DSS uses CMA region > The framebuffers for dss are allocated from cma-pool. By default the cma-region is of 32MiB that is shared by various peripherals. 1920x1080 requires ~16MiB of CMA but sometimes due to fragmentation, we cannot get even this much for framebuffer and memory is not allocated resulting in display failures. And large resolutions like 4k@60fps require ~64MiB straight away. So it is better to reserve appropriate CMA region. Thanks Jayesh > >> I am posting another series to add CMA region to Jacinto platforms >> similar to Sitara family soon: >> >> >> Jayesh Choudhary (5): >>    arm64: dts: ti: k3-j784s4-j742s2-main-common: add DSI & DSI PHY >>    arm64: dts: ti: k3-j784s4-j742s2-evm-common: Enable DisplayPort-1 >>    arm64: dts: ti: k3-j721s2-common-proc-board: Add main_i2c4 instance >>    arm64: dts: ti: k3-j721s2-common-proc-board: Enable DisplayPort-1 >>    arm64: dts: ti: k3-am68-sk: Enable DSI on DisplayPort-0 >> >> Rahul T R (2): >>    arm64: dts: ti: k3-j721s2-main: add DSI & DSI PHY >>    arm64: dts: ti: k3-j721s2-som-p0: add DSI to eDP >> >>   .../boot/dts/ti/k3-am68-sk-base-board.dts     |  96 ++++++++++++++ >>   .../dts/ti/k3-j721s2-common-proc-board.dts    | 116 +++++++++++++++++ >>   arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi    |  37 ++++++ >>   arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi  |  52 ++++++++ >>   .../dts/ti/k3-j784s4-j742s2-evm-common.dtsi   | 117 +++++++++++++++++- >>   .../dts/ti/k3-j784s4-j742s2-main-common.dtsi  |  37 ++++++ >>   6 files changed, 454 insertions(+), 1 deletion(-) >>