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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 5649EC88E5C for ; Wed, 16 Sep 2026 13:47:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=jSm15aEu8LMTkgjEDcY83AKYO/FAhIifYcjSr+uceZs=; b=xfNnOY5vYy9y6vgzvhwABBUdzH LYE5DB2IwFbkwMCsm1vCM36DyQ/ImRuqJMSVDna9kuUn6WGt6nmIMZWEBQt6fLKD/2FfpEI9B0pDG wYclIMIXOawLGRHUnbxN3KEDf78smGKHvOxfgkUkjZ+7qn7i6lATJYQ3EiOndVXsY+N7Kpu5SvIHQ nSKlJlEAJnyPx7FDo7S5J/3U8dNxzIaa64+uRaDprV9L67dQvLLFdUapGdrfzVWXN3bxPnioiWIC1 WjMEege9my5bJE58zXdXhQQ6TKmCvNvU3kJ8esrKf2MLiLVyH2MDcCQDs44dUdZZt+ufGKBL8n8VX Aw7ikPcQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x6pzE-00000009JfG-40OA; Wed, 16 Sep 2026 13:47:45 +0000 Received: from smtpout-02.galae.net ([185.246.84.56]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x6pyg-00000009JEl-46Jl for linux-arm-kernel@lists.infradead.org; Wed, 16 Sep 2026 13:47:17 +0000 Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-02.galae.net (Postfix) with ESMTPS id 6AD0C1A07A8; Wed, 16 Sep 2026 13:47:09 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id 3525E60337; Wed, 16 Sep 2026 13:47:09 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 380E211C7B041; Wed, 16 Sep 2026 15:46:59 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1789566426; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=jSm15aEu8LMTkgjEDcY83AKYO/FAhIifYcjSr+uceZs=; b=K0GCnw3iJUIIJEBk5d04XwNWx4yCPreArhb6pcIbW1Eow4P6spCGVFWsiku75QKgQrx9Oh NWU+WPKhHDIWxMmdy0H7m8SKMS1dFLT/y1+vBcbzk9fusVyuaZ7sc5L7DAiOIg5iAm6Xi2 qz3qwJ4hHu9jGcatl1pSETQ7ZQVTuXyvSlB9h8QbhKLjaDNRQ98cXptgCTkZdxbFsJyuVB H4wFymq2C4ZEXJN6i36nC7YmXkm7Y9UuUq6yWzaJmHZt6gGXxg0zNBaNuj9wqS/gvs7n46 PPHklhmhdxpd4FfudS0Hrj4KEenttlxJuUAnPdCuOKVyTvalRFk5aU9pF0eWew== From: Luca Ceresoli Date: Wed, 16 Sep 2026 15:45:34 +0200 Subject: [PATCH v3 10/19] drm/bridge: waveshare-dsi: don't create a panel_bridge MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260916-drm-bridge-every-panel-v3-10-83afb4f1a707@bootlin.com> References: <20260916-drm-bridge-every-panel-v3-0-83afb4f1a707@bootlin.com> In-Reply-To: <20260916-drm-bridge-every-panel-v3-0-83afb4f1a707@bootlin.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jessica Zhang , Laurentiu Palcu , Lucas Stach , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Paul Cercueil , Paul Kocialkowski , Linus Walleij , Inki Dae , Jagan Teki , Marek Szyprowski , Sean Paul , Jonathan Corbet , Shuah Khan , Randy Dunlap Cc: Albert Esteve , Anusha Srivatsa , Dmitry Baryshkov , Hui Pu , Ian Ray , Thomas Petazzoni , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, asahi@lists.linux.dev, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, linux-tegra@vger.kernel.org, linux-doc@vger.kernel.org, linux-samsung-soc@vger.kernel.org, Luca Ceresoli X-Mailer: b4 0.16.0 X-Last-TLS-Session-Version: TLSv1.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260916_064711_581185_C7B07588 X-CRM114-Status: GOOD ( 13.04 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Now a panel_bridge is automatically created for every drm_panel and the panel-bridge API is just a deprecated wrapper to access it. Update and simplify the code by just getting a reference to the already-existing bridge using of_drm_get_bridge_by_endpoint(). As of_drm_get_bridge_by_endpoint() returns a refcounted bridge, take care of putting the bridge reference by using bridge->next_bridge. Signed-off-by: Luca Ceresoli --- drivers/gpu/drm/bridge/waveshare-dsi.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/bridge/waveshare-dsi.c b/drivers/gpu/drm/bridge/waveshare-dsi.c index 420f3b870a74..2c40bfef2b45 100644 --- a/drivers/gpu/drm/bridge/waveshare-dsi.c +++ b/drivers/gpu/drm/bridge/waveshare-dsi.c @@ -16,11 +16,9 @@ #include #include #include -#include struct ws_bridge { struct drm_bridge bridge; - struct drm_bridge *next_bridge; struct backlight_device *backlight; struct device *dev; struct regmap *reg_map; @@ -89,7 +87,7 @@ static int ws_bridge_bridge_attach(struct drm_bridge *bridge, { struct ws_bridge *ws = bridge_to_ws_bridge(bridge); - return drm_bridge_attach(encoder, ws->next_bridge, + return drm_bridge_attach(encoder, ws->bridge.next_bridge, &ws->bridge, flags); } @@ -150,7 +148,6 @@ static struct backlight_device *ws_bridge_create_backlight(struct ws_bridge *ws) static int ws_bridge_probe(struct i2c_client *i2c) { struct device *dev = &i2c->dev; - struct drm_panel *panel; struct ws_bridge *ws; int ret; @@ -164,14 +161,10 @@ static int ws_bridge_probe(struct i2c_client *i2c) if (IS_ERR(ws->reg_map)) return dev_err_probe(dev, PTR_ERR(ws->reg_map), "Failed to allocate regmap\n"); - ret = drm_of_find_panel_or_bridge(dev->of_node, 1, -1, &panel, NULL); - if (ret) - return dev_err_probe(dev, ret, "Failed to find remote panel\n"); - - ws->next_bridge = devm_drm_panel_bridge_add(dev, panel); - drm_panel_put(panel); - if (IS_ERR(ws->next_bridge)) - return PTR_ERR(ws->next_bridge); + ws->bridge.next_bridge = of_drm_get_bridge_by_endpoint(dev->of_node, 1, -1); + if (IS_ERR(ws->bridge.next_bridge)) + return dev_err_probe(dev, PTR_ERR(ws->bridge.next_bridge), + "Failed to find remote bridge\n"); ws->backlight = ws_bridge_create_backlight(ws); if (IS_ERR(ws->backlight)) { -- 2.55.0