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 65C8DCA5FD2 for ; Thu, 1 Oct 2026 12:45:04 +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=rpVfkIZMmQdurRVLSRng0OFRynPKl3AukF6MjWLjGoQ=; b=BW5LnSS58i2Cn7kx8gm9J0YGyX ZVuNfzMykY/0mSo1/hxYV1qMElbh6HMi81bR/cEfYYY+WrbdlSfYMDbX4nkt8O7Gf8CvWZI3f1WFm 5LKQBba1oXcqPqZ/QypI5Vm9DsWW600lNt2I6q62dUFT5IlCYmgscdhFEP9T0YvWV55CtDOhLZqBB UGU6D1ZRru3rKQkTUgYjO6+JyO7XhEzUFcZ7XvbodE0c0O9uQqo7RQKNqsP5XfotwTwvMEbguwcUr UcHy5Y/sMrscOqEfmritNlrN7wP8hlDVIrpw5Axycede83+ZedB9QGF7mMis4cf5KSyXbLWFcJdo2 Ex+OhlSA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xCG9h-000000097aG-2P4D; Thu, 01 Oct 2026 12:44:57 +0000 Received: from smtpout-03.galae.net ([185.246.85.4]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xCG9e-000000097XH-2Ula for linux-arm-kernel@lists.infradead.org; Thu, 01 Oct 2026 12:44:56 +0000 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 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261001_054454_799062_3777312C X-CRM114-Status: GOOD ( 10.33 ) 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 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