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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BDBDBC433FE for ; Tue, 12 Oct 2021 10:36:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AAF2B610A3 for ; Tue, 12 Oct 2021 10:36:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236057AbhJLKiP (ORCPT ); Tue, 12 Oct 2021 06:38:15 -0400 Received: from perceval.ideasonboard.com ([213.167.242.64]:53022 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236013AbhJLKiJ (ORCPT ); Tue, 12 Oct 2021 06:38:09 -0400 Received: from [192.168.1.111] (91-158-153-130.elisa-laajakaista.fi [91.158.153.130]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 91BFD8C4; Tue, 12 Oct 2021 12:36:06 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1634034966; bh=ijFZWx5zzw5XuaJtr8vLmCBe4W1PxzsU1aR9H3mFgAw=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=D1v2XUUVS2TKmcsuLkPvji8bZxMRpajuzlVfe+NlEzOPGSGO01ZmF16R8VzAH/OQC Hms9+YfDQIrgRSrmLUBcRlNCPiNtS3ffb3s3s231AwTRwP21MfTUmzZhu+dUdyMnAN 9/m+6+qzG/OiNN6phBqCFXAszgJclbdzVQoaKxyI= Subject: Re: [PATCH v5 0/8] drm/omap: Add virtual-planes support To: Neil Armstrong Cc: linux-omap@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, khilman@baylibre.com References: <20210923070701.145377-1-narmstrong@baylibre.com> From: Tomi Valkeinen Message-ID: <99c11b0b-eab8-a7b9-8aab-8cc06be14cd5@ideasonboard.com> Date: Tue, 12 Oct 2021 13:36:03 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/10/2021 11:30, Neil Armstrong wrote: > On 12/10/2021 09:15, Tomi Valkeinen wrote: >> On 23/09/2021 10:06, Neil Armstrong wrote: >>> This patchset is the follow-up the v4 patchset from Benoit Parrot at [1]. >>> >>> This patch series adds virtual-plane support to omapdrm driver to allow the use >>> of display wider than 2048 pixels. >>> >>> In order to do so we introduce the concept of hw_overlay which can then be >>> dynamically allocated to a plane. When the requested output width exceed what >>> be supported by one overlay a second is then allocated if possible to handle >>> display wider then 2048. >>> >>> This series replaces an earlier series which was DT based and using statically >>> allocated resources. >>> >>> This implementation is inspired from the work done in msm/disp/mdp5 >>> driver. >>> >>> Changes since v4 at [1]: >>> - rebased on v5.15-rc2 >> >> What is this based on? Doesn't apply to v5.15-rc2, and "error: sha1 information is lacking or useless". > > Indeed the sha1 info is useless, it's based on v5.15-rc2 on top of "HACK: drm/omap: increase DSS5 max tv pclk to 192MHz" > in order to validate on 2k monitors. I'm personally fine with removing the HACK from that, and applying it too. I used the patch for a long time without any issues. However, I never found anyone to confirm that 192MHz is fine (or that it's not fine). Too old HW for finding HW engineers to look at it =). Tomi