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[2620:137:e000::1:20]) by mx.google.com with ESMTP id h6-20020a056a00218600b006275424ea97si32427137pfi.250.2023.03.30.03.30.41; Thu, 30 Mar 2023 03:30:54 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230455AbjC3KSI (ORCPT + 99 others); Thu, 30 Mar 2023 06:18:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34876 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229778AbjC3KSG (ORCPT ); Thu, 30 Mar 2023 06:18:06 -0400 Received: from mail11.truemail.it (mail11.truemail.it [217.194.8.81]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1FECF7692 for ; Thu, 30 Mar 2023 03:18:04 -0700 (PDT) Received: from francesco-nb.pivistrello.it (93-49-2-63.ip317.fastwebnet.it [93.49.2.63]) by mail11.truemail.it (Postfix) with ESMTPA id 147B120F4D; Thu, 30 Mar 2023 12:18:03 +0200 (CEST) From: Francesco Dolcini To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , dri-devel@lists.freedesktop.org, Marek Vasut Cc: Francesco Dolcini , David Airlie , Daniel Vetter , linux-kernel@vger.kernel.org Subject: [PATCH v1 2/2] drm/bridge: ti-sn65dsi83: Add DSI video mode configuration Date: Thu, 30 Mar 2023 12:17:52 +0200 Message-Id: <20230330101752.429804-3-francesco@dolcini.it> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230330101752.429804-1-francesco@dolcini.it> References: <20230330101752.429804-1-francesco@dolcini.it> MIME-Version: 1.0 X-Spam-Status: No, score=-0.0 required=5.0 tests=SPF_HELO_PASS,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1761788178828436517?= X-GMAIL-MSGID: =?utf-8?q?1761788301796904298?= From: Francesco Dolcini Enable configuration of the DSI video mode instead of hard-coding MIPI_DSI_MODE_VIDEO_BURST. The bridge support any of burst-mode, non-burst with sync event or non-burst with sync pulse With this change is possible to use the bridge with host DSI that do not support burst mode. Signed-off-by: Francesco Dolcini --- drivers/gpu/drm/bridge/ti-sn65dsi83.c | 24 +++++++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi83.c b/drivers/gpu/drm/bridge/ti-sn65dsi83.c index 91ecfbe45bf9..144d0de0d278 100644 --- a/drivers/gpu/drm/bridge/ti-sn65dsi83.c +++ b/drivers/gpu/drm/bridge/ti-sn65dsi83.c @@ -145,6 +145,7 @@ struct sn65dsi83 { struct drm_bridge *panel_bridge; struct gpio_desc *enable_gpio; struct regulator *vcc; + u32 dsi_video_mode; bool lvds_dual_link; bool lvds_dual_link_even_odd_swap; }; @@ -603,6 +604,9 @@ static int sn65dsi83_parse_dt(struct sn65dsi83 *ctx, enum sn65dsi83_model model) return dev_err_probe(dev, PTR_ERR(ctx->vcc), "Failed to get supply 'vcc'\n"); + ctx->dsi_video_mode = 0; + of_property_read_u32(dev->of_node, "dsi-video-mode", &ctx->dsi_video_mode); + return 0; } @@ -642,7 +646,25 @@ static int sn65dsi83_host_attach(struct sn65dsi83 *ctx) dsi->lanes = dsi_lanes; dsi->format = MIPI_DSI_FMT_RGB888; - dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST; + dsi->mode_flags = MIPI_DSI_MODE_VIDEO; + + switch (ctx->dsi_video_mode) { + case 0: + /* burst mode */ + dsi->mode_flags |= MIPI_DSI_MODE_VIDEO_BURST; + break; + case 1: + /* non-burst mode with sync event */ + break; + case 2: + /* non-burst mode with sync pulse */ + dsi->mode_flags |= MIPI_DSI_MODE_VIDEO_SYNC_PULSE; + break; + default: + dev_warn(dev, "invalid video mode %d\n", ctx->dsi_video_mode); + break; + } + ret = devm_mipi_dsi_attach(dev, dsi); if (ret < 0) {