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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 503E9C43458 for ; Sun, 28 Jun 2026 17:01:02 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 218AA10E642; Sun, 28 Jun 2026 17:01:01 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kemnade.info header.i=@kemnade.info header.b="yE26HYhm"; dkim-atps=neutral Received: from mail.andi.de1.cc (mail.andi.de1.cc [178.238.236.174]) by gabe.freedesktop.org (Postfix) with ESMTPS id 83EF310E642 for ; Sun, 28 Jun 2026 17:00:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=kemnade.info; s=20220719; h=References:In-Reply-To:Subject:Cc:To:From: Reply-To:Content-ID:Content-Description; bh=lOa9hr9hGQ1OVWLjJuIi7OMpViAhrQPbKPwUJ+q4IOY=; t=1782666059; x=1783875659; b=yE26HYhmcCuZBXMuoG/9zvKV3oiPULAnfYqxOCXOBYB+exIYUfJJEjdEj8JBdj/Z1YNbmPK7v0q FijJvQJocSGD0XDfAPx3AKhXkJyFeXwxAQi73BmyuHgsxm55SZ9Y/m2TyufsR0oSwww1B2CoGW1rH zFdopOG/XuJ8eTFCdCWE1CWT9o2PPf4Gk4G8YsGfvNwWeDFDXcN+Qt3gOarwJte/91fc3EplHdiuB HB2JZ6aw3cr5sK04RNZhn1wV2NWWRhqxDpGrISTnSxJfWPS6kgfHELGjakYEf3R4dl1AjIG45KB77 m0dY5HngrrdzuUOdEsqTw+VsQhHaIdvAq8zw==; Date: Sun, 28 Jun 2026 19:00:41 +0200 From: Andreas Kemnade To: Ivaylo Dimitrov Cc: Tomi Valkeinen , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Sebastian Reichel , Laurent Pinchart , Tony Lindgren , Linux-OMAP , Marek Vasut , "H. Nikolaus Schaller" , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Tomi Valkeinen Subject: Re: [PATCH] drm/omap: dsi: avoid sending bta sync all the time in writes Message-ID: <20260628190041.4a30f769@kemnade.info> In-Reply-To: <4cb8a90b-6345-47a8-b15a-a977a33af8b3@gmail.com> References: <20260528-vm-upstr-v1-1-fb93ef8cbe47@kernel.org> <20260528190234.4c00b740@kernel.org> <37f64c1c-9920-41a6-a8c0-7a84a30c884a@gmail.com> <20260528220603.6600d45b@kemnade.info> <20260528221912.1771daa4@kemnade.info> <4cb8a90b-6345-47a8-b15a-a977a33af8b3@gmail.com> X-Mailer: Claws Mail 4.3.1 (GTK 3.24.49; aarch64-unknown-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Fri, 29 May 2026 09:26:23 +0300 Ivaylo Dimitrov wrote: > Hi, > > with the following changes: > > user@devuan:/media/user/7b76ddc8-44f5-47b5-af5b-e5e9b5ab39c3/user/linux_openpvrsgx$ > git diff drivers/gpu/drm/omapdrm/dss/dsi.c > diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c > b/drivers/gpu/drm/omapdrm/dss/dsi.c > index af27339c79f9..8ffcd95c3bc3 100644 > --- a/drivers/gpu/drm/omapdrm/dss/dsi.c > +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c > @@ -2199,7 +2199,7 @@ static int dsi_vc_write_common(struct > omap_dss_device *dssdev, int vc, > int r; > > if (mipi_dsi_packet_format_is_short(msg->type)) > - r = dsi_vc_send_short(dsi, vc, msg); > + return dsi_vc_send_short(dsi, vc, msg); > else > r = dsi_vc_send_long(dsi, vc, msg); > > @@ -3247,21 +3247,6 @@ static int _dsi_update(struct dsi_data *dsi) do you really need the change from above? I think it should not be needed with the other changes. Waiting on short packets seems to work here. Regards, Andreas