From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpout-03.galae.net (smtpout-03.galae.net [185.246.85.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A01EC4AB1A9 for ; Thu, 1 Oct 2026 12:44:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.246.85.4 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790858696; cv=none; b=BsgLRnAkzXv6jnh0hSTJ2D4zFIgllLsqEpY2Mf+UcYv2LTZWU+h4spzwuUzalvFwz1zXv+6Twv6ExGE8DpdvXYLlOExyrUv/GYwyFIBPgg52PCktDZ2sd1Z7iuIxs5YjxsW9wdHpqUSFiSD63uoQS/rls+x8/xJ3/ebEs4+kv9E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790858696; c=relaxed/simple; bh=xWeQxwBa85yJK9iJ4H3WyvCaqUapkJafz+PjYsVMpws=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=pfgCEDK8tsKTfPaI7bStr7NW8ndFKPX1FiK/4nVz0/eCj2GmG+WPznswsdl6WTNRbs/WYc1hBY/W8c727sud3dZ/MSESKq+S8f1Cr6NPy+ljayP4wtzsXrFY4xehz6hWg5lGF6H/K8LurBclrwx4W5cGxcpl6cz6koXvM5aFtyY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=GeRCdvCS; arc=none smtp.client-ip=185.246.85.4 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="GeRCdvCS" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-03.galae.net (Postfix) with ESMTPS id 050914E416CC; Thu, 1 Oct 2026 12:44:53 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id C57F460341; Thu, 1 Oct 2026 12:44:52 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 9206510328105; Thu, 1 Oct 2026 14:44:45 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1790858690; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=rpVfkIZMmQdurRVLSRng0OFRynPKl3AukF6MjWLjGoQ=; b=GeRCdvCSP0ELtOglNNDwnlP0we9U0+IuG6VnbWKcKH18jyqSH84UZH2DYCE+/E1+HGobQl 1OGI9ngUc0cb8709QVWw3B54YA0+KzFactSZ7eIr1Tyut03da7bddK8n3w/M45MKzHWAeD oHl4+UBxKspLMYctwlS8KTrSD/GAeZElS5DUVT+VArK+NSbgCmgyOroBlhIGR4tmgcZBdE HwiDVRXojzT4hW+abfy14J963Unn3I2VqZ96p0AD5JV0MrLhKc1Qbu511F5p5KvGyz9sPx N0wkcUjJlAlv/jAA0t901JmKpqSlE06myX/dpHLwwV2fbq0P1sb+IL/5oFogiA== From: Luca Ceresoli Date: Thu, 01 Oct 2026 14:42:43 +0200 Subject: [PATCH RFC v2 21/24] drm/bridge: ti-sn65dsi86: implement .get_next_bridge Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261001-drm-bridge-hotplug-v2-21-8e34986dcb68@bootlin.com> References: <20261001-drm-bridge-hotplug-v2-0-8e34986dcb68@bootlin.com> In-Reply-To: <20261001-drm-bridge-hotplug-v2-0-8e34986dcb68@bootlin.com> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Inki Dae , Jagan Teki , Marek Szyprowski , Jessica Zhang , Douglas Anderson , Marek Vasut , Stefan Agner , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: Hui Pu , Ian Ray , Luca Ceresoli , Thomas Petazzoni , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org X-Mailer: b4 0.16.0 X-Last-TLS-Session-Version: TLSv1.3 Add get_next_callback func to expose the next bridge. Signed-off-by: Luca Ceresoli --- drivers/gpu/drm/bridge/ti-sn65dsi86.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c index 369c13183232..7196097f68aa 100644 --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c @@ -768,6 +768,13 @@ static int ti_sn_attach_host(struct auxiliary_device *adev, struct ti_sn65dsi86 return devm_mipi_dsi_attach(&adev->dev, dsi); } +static struct drm_bridge *sn65dsi86_get_next_bridge(struct drm_bridge *bridge) +{ + struct ti_sn65dsi86 *pdata = bridge_to_ti_sn65dsi86(bridge); + + return pdata->next_bridge ?: ERR_PTR(-ENODEV); +} + static int ti_sn_bridge_attach(struct drm_bridge *bridge, struct drm_encoder *encoder, enum drm_bridge_attach_flags flags) @@ -1358,6 +1365,7 @@ static void ti_sn_bridge_hpd_disable(struct drm_bridge *bridge) } static const struct drm_bridge_funcs ti_sn_bridge_funcs = { + .get_next_bridge = sn65dsi86_get_next_bridge, .attach = ti_sn_bridge_attach, .detach = ti_sn_bridge_detach, .mode_valid = ti_sn_bridge_mode_valid, @@ -1496,8 +1504,9 @@ static int ti_sn_bridge_probe(struct auxiliary_device *adev, pdata->bridge.type = pdata->next_bridge->type == DRM_MODE_CONNECTOR_DisplayPort ? DRM_MODE_CONNECTOR_DisplayPort : DRM_MODE_CONNECTOR_eDP; + pdata->bridge.ops = DRM_BRIDGE_OP_GET_NEXT_BRIDGE; if (pdata->bridge.type == DRM_MODE_CONNECTOR_DisplayPort) { - pdata->bridge.ops = DRM_BRIDGE_OP_EDID | DRM_BRIDGE_OP_DETECT; + pdata->bridge.ops |= DRM_BRIDGE_OP_EDID | DRM_BRIDGE_OP_DETECT; if (client->irq) pdata->bridge.ops |= DRM_BRIDGE_OP_HPD; /* -- 2.55.0