From patchwork Mon Oct 19 15:07:49 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liviu Dudau X-Patchwork-Id: 7437961 Return-Path: X-Original-To: patchwork-linux-rockchip@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id DB81BBEEA4 for ; Mon, 19 Oct 2015 15:15:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 037C22072E for ; Mon, 19 Oct 2015 15:15:42 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0582320708 for ; Mon, 19 Oct 2015 15:15:41 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZoCA0-0007Nx-KN; Mon, 19 Oct 2015 15:15:40 +0000 Received: from fw-tnat.cambridge.arm.com ([217.140.96.140] helo=cam-smtp0.cambridge.arm.com) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZoC38-0001Lk-4z; Mon, 19 Oct 2015 15:08:35 +0000 Received: from e106497-lin.cambridge.arm.com (e106497-lin.cambridge.arm.com [10.2.131.158]) by cam-smtp0.cambridge.arm.com (8.13.8/8.13.8) with ESMTP id t9JF7o2k025900; Mon, 19 Oct 2015 16:07:50 +0100 From: Liviu Dudau To: David Airlie , Daniel Vetter , Philipp Zabel , Mark Yao , Heiko Stuebner , Russell King Subject: [RFC PATCH v3 3/4] drm/rockchip: Convert the probe function to the generic drm_of_component_probe() Date: Mon, 19 Oct 2015 16:07:49 +0100 Message-Id: <1445267270-23126-4-git-send-email-Liviu.Dudau@arm.com> X-Mailer: git-send-email 2.6.0 In-Reply-To: <1445267270-23126-1-git-send-email-Liviu.Dudau@arm.com> References: <1445267270-23126-1-git-send-email-Liviu.Dudau@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20151019_080834_624132_D7DAE451 X-CRM114-Status: GOOD ( 12.78 ) X-Spam-Score: -4.2 (----) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-rockchip , LAKML , dri-devel , LKML MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Use the generic drm_of_component_probe() function to probe for components. Signed-off-by: Liviu Dudau --- drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 81 +++-------------------------- 1 file changed, 6 insertions(+), 75 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c index f22e1e1..d26e0cc 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -418,29 +419,6 @@ static int compare_of(struct device *dev, void *data) return dev->of_node == np; } -static void rockchip_add_endpoints(struct device *dev, - struct component_match **match, - struct device_node *port) -{ - struct device_node *ep, *remote; - - for_each_child_of_node(port, ep) { - remote = of_graph_get_remote_port_parent(ep); - if (!remote || !of_device_is_available(remote)) { - of_node_put(remote); - continue; - } else if (!of_device_is_available(remote->parent)) { - dev_warn(dev, "parent device of %s is not available\n", - remote->full_name); - of_node_put(remote); - continue; - } - - component_match_add(dev, match, compare_of, remote); - of_node_put(remote); - } -} - static int rockchip_drm_bind(struct device *dev) { struct drm_device *drm; @@ -483,61 +461,14 @@ static const struct component_master_ops rockchip_drm_ops = { static int rockchip_drm_platform_probe(struct platform_device *pdev) { - struct device *dev = &pdev->dev; - struct component_match *match = NULL; - struct device_node *np = dev->of_node; - struct device_node *port; - int i; - - if (!np) - return -ENODEV; - /* - * Bind the crtc ports first, so that - * drm_of_find_possible_crtcs called from encoder .bind callbacks - * works as expected. - */ - for (i = 0;; i++) { - port = of_parse_phandle(np, "ports", i); - if (!port) - break; - - if (!of_device_is_available(port->parent)) { - of_node_put(port); - continue; - } - - component_match_add(dev, &match, compare_of, port->parent); - of_node_put(port); - } + int ret = drm_of_component_probe(&pdev->dev, compare_of, + &rockchip_drm_ops); - if (i == 0) { - dev_err(dev, "missing 'ports' property\n"); + /* keep compatibility with old code that was returning -ENODEV */ + if (ret == -EINVAL) return -ENODEV; - } - if (!match) { - dev_err(dev, "No available vop found for display-subsystem.\n"); - return -ENODEV; - } - /* - * For each bound crtc, bind the encoders attached to its - * remote endpoint. - */ - for (i = 0;; i++) { - port = of_parse_phandle(np, "ports", i); - if (!port) - break; - - if (!of_device_is_available(port->parent)) { - of_node_put(port); - continue; - } - - rockchip_add_endpoints(dev, &match, port); - of_node_put(port); - } - - return component_master_add_with_match(dev, &rockchip_drm_ops, match); + return ret; } static int rockchip_drm_platform_remove(struct platform_device *pdev)