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 X-Spam-Level: X-Spam-Status: No, score=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ECCC7C433F5 for ; Wed, 29 Aug 2018 03:13:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B258A20850 for ; Wed, 29 Aug 2018 03:13:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B258A20850 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=rock-chips.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727582AbeH2HHl (ORCPT ); Wed, 29 Aug 2018 03:07:41 -0400 Received: from regular1.263xmail.com ([211.150.99.136]:53722 "EHLO regular1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727117AbeH2HHk (ORCPT ); Wed, 29 Aug 2018 03:07:40 -0400 Received: from hjc?rock-chips.com (unknown [192.168.167.158]) by regular1.263xmail.com (Postfix) with ESMTP id 7227D37C; Wed, 29 Aug 2018 11:12:56 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from localhost.localdomain (localhost [127.0.0.1]) by smtp.263.net (Postfix) with ESMTPA id 4F0EA3C4; Wed, 29 Aug 2018 11:12:55 +0800 (CST) X-RL-SENDER: hjc@rock-chips.com X-FST-TO: hjc@rock-chips.com X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: hjc@rock-chips.com X-UNIQUE-TAG: <18f69bf46ad5498c2f44cff213fd75c2> X-ATTACHMENT-NUM: 0 X-SENDER: hjc@rock-chips.com X-DNS-TYPE: 0 Received: from unknown (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith SMTP id 3105632JBGK; Wed, 29 Aug 2018 11:12:56 +0800 (CST) From: Sandy Huang To: hjc@rock-chips.com, heiko@sntech.de, seanpaul@chromium.org, David Airlie Cc: linux-rockchip@lists.infradead.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v7 1/3] drm/tockchip: add function to check if endpoint is a subdriver Date: Wed, 29 Aug 2018 11:12:42 +0800 Message-Id: <1535512364-80764-2-git-send-email-hjc@rock-chips.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1535512364-80764-1-git-send-email-hjc@rock-chips.com> References: <1535512364-80764-1-git-send-email-hjc@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Heiko Stuebner To be able to have both internal subdrivers and external bridge drivers as output endpoints of vops, add a function to be able to distinguish these. Signed-off-by: Heiko Stuebner --- drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 27 +++++++++++++++++++++++++++ drivers/gpu/drm/rockchip/rockchip_drm_drv.h | 1 + 2 files changed, 28 insertions(+) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c index 1d9c4a9..d18f7f8 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include @@ -267,6 +268,32 @@ static const struct dev_pm_ops rockchip_drm_pm_ops = { static struct platform_driver *rockchip_sub_drivers[MAX_ROCKCHIP_SUB_DRIVERS]; static int num_rockchip_sub_drivers; +/* + * check if a vop output-endpoint is a subdriver or bridge. + */ +bool rockchip_drm_endpoint_is_subdriver(struct device_node *ep) +{ + struct device_node *node = of_graph_get_remote_port_parent(ep); + struct platform_device *pdev; + int i; + + if (!node) + return false; + + pdev = of_find_device_by_node(node); + if (!pdev) + return false; + + for (i = 0; i < num_rockchip_sub_drivers; i++) { + struct device_driver *drv = pdev->dev.driver; + + if (rockchip_sub_drivers[i] == to_platform_driver(drv)) + return true; + } + + return false; +} + static int compare_dev(struct device *dev, void *data) { return dev == (struct device *)data; diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h index d67ad0a..305b485 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h @@ -64,6 +64,7 @@ void rockchip_drm_dma_detach_device(struct drm_device *drm_dev, struct device *dev); int rockchip_drm_wait_vact_end(struct drm_crtc *crtc, unsigned int mstimeout); +bool rockchip_drm_endpoint_is_subdriver(struct device_node *ep); extern struct platform_driver cdn_dp_driver; extern struct platform_driver dw_hdmi_rockchip_pltfm_driver; extern struct platform_driver dw_mipi_dsi_driver; -- 2.7.4