From patchwork Fri Feb 18 01:00:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 12750863 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 45212C433EF for ; Fri, 18 Feb 2022 01:01:36 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9432410E932; Fri, 18 Feb 2022 01:01:29 +0000 (UTC) Received: from phobos.denx.de (phobos.denx.de [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3EBE410E914 for ; Fri, 18 Feb 2022 01:01:20 +0000 (UTC) Received: from tr.lan (ip-89-176-112-137.net.upcbroadband.cz [89.176.112.137]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: marex@denx.de) by phobos.denx.de (Postfix) with ESMTPSA id AC6D083B6D; Fri, 18 Feb 2022 02:01:18 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1645146079; bh=4F0zqmlV8G2YQGi0XKzd6Pxfwb3oVPyBv6P02xm50bw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=z/r6G+RzL7NVFz6hVUPpvRrdy8xSv8ey3wLl2tUEIFLyOpsyMvmEBW5Y5lImdnvDS dMI+FFVRmdMeGyQv6gKC5QLeCBPyzGdI/gbwbZK65vpfWZ14M6Jeb9aFqM63l4ZdnV gJligEXCNe2kd6ciI4l6QoTxjtPAlrmA9MofUOJk2I/SCv+AHBDhnKoUlkmsFYpcjC RKt96wnce7sh0WlaqYZ2XxDW+c+dLkpbER6vhytkxyoX30gyiHdbjsrZXpbq3GgsJP XMbpTavAIbY2sPfNyMEFk2smmRDPXgplVorQNHWSGSWrgvS5AqJDVimxhos1YtTnIW N6Ql3D4MiQFIQ== From: Marek Vasut To: dri-devel@lists.freedesktop.org Subject: [PATCH V2 06/11] drm/bridge: tc358767: Move (e)DP bridge endpoint parsing into dedicated function Date: Fri, 18 Feb 2022 02:00:49 +0100 Message-Id: <20220218010054.315026-7-marex@denx.de> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220218010054.315026-1-marex@denx.de> References: <20220218010054.315026-1-marex@denx.de> MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.103.5 at phobos.denx.de X-Virus-Status: Clean 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: Marek Vasut , Neil Armstrong , Jonas Karlman , Laurent Pinchart , Sam Ravnborg , Maxime Ripard Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The TC358767/TC358867/TC9595 are all capable of operating in multiple modes, DPI-to-(e)DP, DSI-to-(e)DP, DSI-to-DPI. Only the first mode is currently supported. In order to support the rest of the modes without making the tc_probe() overly long, split the bridge endpoint parsing into dedicated function, where the necessary logic to detect the bridge mode based on which endpoints are connected, can be implemented. Signed-off-by: Marek Vasut Cc: Jonas Karlman Cc: Laurent Pinchart Cc: Maxime Ripard Cc: Neil Armstrong Cc: Sam Ravnborg Reviewed-by: Lucas Stach --- V2: - Rename tc_probe_bridge_mode() to tc_probe_edp_bridge_endpoint() to better reflect that it parses the (e)DP output endpoint --- drivers/gpu/drm/bridge/tc358767.c | 30 +++++++++++++++++++++--------- 1 file changed, 21 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index 134c4d8621236..450a472888ba9 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1646,19 +1646,12 @@ static irqreturn_t tc_irq_handler(int irq, void *arg) return IRQ_HANDLED; } -static int tc_probe(struct i2c_client *client, const struct i2c_device_id *id) +static int tc_probe_edp_bridge_endpoint(struct tc_data *tc) { - struct device *dev = &client->dev; + struct device *dev = tc->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; - /* port@2 is the output port */ ret = drm_of_find_panel_or_bridge(dev->of_node, 2, 0, &panel, NULL); if (ret && ret != -ENODEV) @@ -1677,6 +1670,25 @@ static int tc_probe(struct i2c_client *client, const struct i2c_device_id *id) tc->bridge.type = DRM_MODE_CONNECTOR_DisplayPort; } + return ret; +} + +static int tc_probe(struct i2c_client *client, const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + struct tc_data *tc; + int ret; + + tc = devm_kzalloc(dev, sizeof(*tc), GFP_KERNEL); + if (!tc) + return -ENOMEM; + + tc->dev = dev; + + ret = tc_probe_edp_bridge_endpoint(tc); + if (ret) + return ret; + /* Shut down GPIO is optional */ tc->sd_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH); if (IS_ERR(tc->sd_gpio))