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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2B0D4C433F5 for ; Wed, 17 Nov 2021 14:34:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0F61A60E78 for ; Wed, 17 Nov 2021 14:34:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236432AbhKQOhU (ORCPT ); Wed, 17 Nov 2021 09:37:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58140 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229651AbhKQOhT (ORCPT ); Wed, 17 Nov 2021 09:37:19 -0500 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5B95DC061570 for ; Wed, 17 Nov 2021 06:34:21 -0800 (PST) Received: from dude02.hi.pengutronix.de ([2001:67c:670:100:1d::28]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mnM0e-0005te-FA; Wed, 17 Nov 2021 15:34:00 +0100 Received: from sha by dude02.hi.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1mnM0b-001P6K-2l; Wed, 17 Nov 2021 15:33:57 +0100 From: Sascha Hauer To: dri-devel@lists.freedesktop.org Cc: linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, kernel@pengutronix.de, Benjamin Gaignard , Michael Riesch , Sandy Huang , =?UTF-8?q?Heiko=20St=C3=BCbner?= , Peter Geis , Sascha Hauer Subject: [PATCH 05/12] of: graph: Allow disabled endpoints Date: Wed, 17 Nov 2021 15:33:40 +0100 Message-Id: <20211117143347.314294-6-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211117143347.314294-1-s.hauer@pengutronix.de> References: <20211117143347.314294-1-s.hauer@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::28 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: devicetree@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org There are cases in which a SoC allows many different routes between components, but not all of them make sense for a board. With this patch we allow standard status = "disabled" properties for ports. With this a SoC level dtsi file can describe all possible ports and only the ones that make sense for the given hardware are enabled at board level. Signed-off-by: Sascha Hauer --- drivers/gpu/drm/drm_of.c | 6 ++---- drivers/of/property.c | 3 +++ 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c index 37c34146eea83..c2fd9fe505767 100644 --- a/drivers/gpu/drm/drm_of.c +++ b/drivers/gpu/drm/drm_of.c @@ -67,10 +67,8 @@ uint32_t drm_of_find_possible_crtcs(struct drm_device *dev, for_each_endpoint_of_node(port, ep) { remote_port = of_graph_get_remote_port(ep); - if (!remote_port) { - of_node_put(ep); - return 0; - } + if (!remote_port) + continue; possible_crtcs |= drm_of_crtc_port_mask(dev, remote_port); diff --git a/drivers/of/property.c b/drivers/of/property.c index a3483484a5a2a..40f8da7baa0a9 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -730,6 +730,9 @@ EXPORT_SYMBOL(of_graph_get_endpoint_by_regs); */ struct device_node *of_graph_get_remote_endpoint(const struct device_node *node) { + if (!of_device_is_available(node)) + return NULL; + /* Get remote endpoint node. */ return of_parse_phandle(node, "remote-endpoint", 0); } -- 2.30.2