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 X-Spam-Level: X-Spam-Status: No, score=-0.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 28231C433E0 for ; Sat, 20 Jun 2020 10:31:15 +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 D401D2240C for ; Sat, 20 Jun 2020 10:31:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D401D2240C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ravnborg.org 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 C72B36E0D5; Sat, 20 Jun 2020 10:31:13 +0000 (UTC) Received: from asavdk3.altibox.net (asavdk3.altibox.net [109.247.116.14]) by gabe.freedesktop.org (Postfix) with ESMTPS id BEDAC6E0D5 for ; Sat, 20 Jun 2020 10:31:12 +0000 (UTC) Received: from ravnborg.org (unknown [188.228.123.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by asavdk3.altibox.net (Postfix) with ESMTPS id DC51B20020; Sat, 20 Jun 2020 12:31:07 +0200 (CEST) Date: Sat, 20 Jun 2020 12:31:06 +0200 From: Sam Ravnborg To: Vinay Simha BN Subject: Re: [PATCH v3 2/2] display/drm/bridge: TC358775 DSI/LVDS driver Message-ID: <20200620103106.GA15379@ravnborg.org> References: <20200618121902.16841-1-simhavcs@gmail.com> <20200618121902.16841-2-simhavcs@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200618121902.16841-2-simhavcs@gmail.com> X-CMAE-Score: 0 X-CMAE-Analysis: v=2.3 cv=edQTgYMH c=1 sm=1 tr=0 a=S6zTFyMACwkrwXSdXUNehg==:117 a=S6zTFyMACwkrwXSdXUNehg==:17 a=kj9zAlcOel0A:10 a=Qg8_i2Z0HerwvbgKwyIA:9 a=CjuIK1q_8ugA:10 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: Jernej Skrabec , Neil Armstrong , David Airlie , Jonas Karlman , open list , "open list:DRM DRIVERS" , Andrzej Hajda , Laurent Pinchart Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hi Vinay. > + > +static int tc_probe(struct i2c_client *client, const struct i2c_device_id *id) > +{ > + struct device *dev = &client->dev; > + struct drm_panel *panel; > + struct tc_data *tc; > + int ret; > + > + tc = devm_kzalloc(dev, sizeof(*tc), GFP_KERNEL); > + if (!tc) > + return -ENOMEM; > + > + tc->dev = dev; > + tc->i2c = client; > + > + ret = drm_of_find_panel_or_bridge(dev->of_node, TC358775_LVDS_OUT0, > + 0, &panel, NULL); > + if (ret < 0) > + return ret; > + if (!panel) > + return -ENODEV; > + > + panel->connector_type = DRM_MODE_CONNECTOR_LVDS; The panel is responsible for specifying the connector_type. It is wrong to let users of panel set it. Fix the panel and not the bridge driver. > + > + tc->panel_bridge = devm_drm_panel_bridge_add(dev, panel); > + if (IS_ERR(tc->panel_bridge)) > + return PTR_ERR(tc->panel_bridge); > + > + ret = tc358775_parse_dt(dev->of_node, tc); > + if (ret) > + return ret; > + > + tc->vddio = devm_regulator_get(dev, "vddio-supply"); > + if (IS_ERR(tc->vddio)) { > + ret = PTR_ERR(tc->vddio); > + dev_err(dev, "vddio-supply not found\n"); > + return ret; > + } > + > + tc->vdd = devm_regulator_get(dev, "vdd-supply"); > + if (IS_ERR(tc->vdd)) { > + ret = PTR_ERR(tc->vddio); > + dev_err(dev, "vdd-supply not found\n"); > + return ret; > + } > + > + tc->stby_gpio = devm_gpiod_get(dev, "stby", GPIOD_OUT_HIGH); > + if (IS_ERR(tc->stby_gpio)) { > + ret = PTR_ERR(tc->stby_gpio); > + dev_err(dev, "cannot get stby-gpio %d\n", ret); > + return ret; > + } > + > + tc->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); > + if (IS_ERR(tc->reset_gpio)) { > + ret = PTR_ERR(tc->reset_gpio); > + dev_err(dev, "cannot get reset-gpios %d\n", ret); > + return ret; > + } > + > + tc->bridge.funcs = &tc_bridge_funcs; > + tc->bridge.of_node = dev->of_node; > + drm_bridge_add(&tc->bridge); > + > + i2c_set_clientdata(client, tc); > + > + return 0; > +} > + Sam _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel