From patchwork Tue Nov 24 12:45:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11928389 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 40FBFC2D0E4 for ; Tue, 24 Nov 2020 12:49:26 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id D9392206B2 for ; Tue, 24 Nov 2020 12:49:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=ti.com header.i=@ti.com header.b="oomQK5cH" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D9392206B2 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=ti.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 70E946E454; Tue, 24 Nov 2020 12:49:09 +0000 (UTC) Received: from fllv0015.ext.ti.com (fllv0015.ext.ti.com [198.47.19.141]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3A9B66E436 for ; Tue, 24 Nov 2020 12:48:40 +0000 (UTC) Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 0AOCmYWu123910; Tue, 24 Nov 2020 06:48:34 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1606222114; bh=5s8QmQI+N0XQdn8EPpNAQ3NAr0bNQwitMiHyWJuHjlU=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=oomQK5cHmFDsXGp3/Quas1Z37FXOCKJOSpr7J2hq8wMKwUXz6L32BUx5nnrLMuN77 /rPZMIeE4prhrux8KFJv+dJsG/GwI0YMlrzLzuVMHbYgRoyXauXaGVV2akGLUplOrx 9qRAl7R+LmJh7xVeH0pWJ7k+m1lbXjZ+yy6Y9SpQ= Received: from DLEE106.ent.ti.com (dlee106.ent.ti.com [157.170.170.36]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 0AOCmYw3044900 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 24 Nov 2020 06:48:34 -0600 Received: from DLEE100.ent.ti.com (157.170.170.30) by DLEE106.ent.ti.com (157.170.170.36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Tue, 24 Nov 2020 06:48:34 -0600 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE100.ent.ti.com (157.170.170.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Tue, 24 Nov 2020 06:48:34 -0600 Received: from deskari.lan (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 0AOCjmpu040922; Tue, 24 Nov 2020 06:48:32 -0600 From: Tomi Valkeinen To: Sebastian Reichel , Laurent Pinchart , Nikhil Devshatwar , , Subject: [PATCH v4 67/80] drm/omap: dsi: use separate VCs for cmd and video Date: Tue, 24 Nov 2020 14:45:25 +0200 Message-ID: <20201124124538.660710-68-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201124124538.660710-1-tomi.valkeinen@ti.com> References: <20201124124538.660710-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 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: , Cc: Tony Lindgren , hns@goldelico.com, Tomi Valkeinen , Sekhar Nori Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" For command mode panels we can use a single VC for sending command and video data, even if we have to change the data source for that VC when going from command to video or vice versa. However, with video mode panels we want to keep the pixel data VC enabled, and use another VC for command data, and the commands will get interleaved into the pixel data. This patch makes the driver use VC0 for commands and VC1 for video. Signed-off-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/omapdrm/dss/dsi.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c index 41d6231d6e31..019814a0a264 100644 --- a/drivers/gpu/drm/omapdrm/dss/dsi.c +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c @@ -452,7 +452,9 @@ static bool dsi_perf; module_param(dsi_perf, bool, 0644); #endif -#define VC_DEFAULT 0 +/* Note: for some reason video mode seems to work only if VC_VIDEO is 0 */ +#define VC_VIDEO 0 +#define VC_CMD 1 #define drm_bridge_to_dsi(bridge) \ container_of(bridge, struct dsi_data, bridge) @@ -3723,7 +3725,7 @@ static void dsi_disable_video_outputs(struct omap_dss_device *dssdev) dsi_bus_lock(dsi); dsi->video_enabled = false; - dsi_disable_video_output(dssdev, VC_DEFAULT); + dsi_disable_video_output(dssdev, VC_VIDEO); dsi_display_disable(dssdev); @@ -3946,7 +3948,7 @@ static int dsi_update_channel(struct omap_dss_device *dssdev, int vc) static int dsi_update_all(struct omap_dss_device *dssdev) { - return dsi_update_channel(dssdev, VC_DEFAULT); + return dsi_update_channel(dssdev, VC_VIDEO); } /* Display funcs */ @@ -4179,7 +4181,7 @@ static void dsi_enable_video_outputs(struct omap_dss_device *dssdev) dsi_display_enable(dssdev); - dsi_enable_video_output(dssdev, VC_DEFAULT); + dsi_enable_video_output(dssdev, VC_VIDEO); dsi->video_enabled = true; @@ -4936,7 +4938,7 @@ static ssize_t omap_dsi_host_transfer(struct mipi_dsi_host *host, { struct dsi_data *dsi = host_to_omap(host); int r; - int vc = VC_DEFAULT; + int vc = VC_CMD; dsi_bus_lock(dsi);