From patchwork Wed Nov 30 11:17:25 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 9454035 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E524B60585 for ; Wed, 30 Nov 2016 11:21:43 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CB2B228440 for ; Wed, 30 Nov 2016 11:21:43 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AE42228441; Wed, 30 Nov 2016 11:21:43 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4627E2842C for ; Wed, 30 Nov 2016 11:21:43 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7807D6E12D; Wed, 30 Nov 2016 11:21:30 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from lelnx194.ext.ti.com (lelnx194.ext.ti.com [198.47.27.80]) by gabe.freedesktop.org (Postfix) with ESMTPS id 82D0E6E077 for ; Wed, 30 Nov 2016 11:18:23 +0000 (UTC) Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by lelnx194.ext.ti.com (8.15.1/8.15.1) with ESMTP id uAUBIL1T022132; Wed, 30 Nov 2016 05:18:21 -0600 Received: from DLEE70.ent.ti.com (dlemailx.itg.ti.com [157.170.170.113]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id uAUBIKDa019431; Wed, 30 Nov 2016 05:18:20 -0600 Received: from dflp32.itg.ti.com (10.64.6.15) by DLEE70.ent.ti.com (157.170.170.113) with Microsoft SMTP Server id 14.3.294.0; Wed, 30 Nov 2016 05:18:20 -0600 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp32.itg.ti.com (8.14.3/8.13.8) with ESMTP id uAUBHnVD013328; Wed, 30 Nov 2016 05:18:19 -0600 From: Tomi Valkeinen To: , Laurent Pinchart Subject: [PATCH 23/36] drm/omap: dss: Functions to check components in the display/output list Date: Wed, 30 Nov 2016 13:17:25 +0200 Message-ID: <1480504658-11775-24-git-send-email-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1480504658-11775-1-git-send-email-tomi.valkeinen@ti.com> References: <1480504658-11775-1-git-send-email-tomi.valkeinen@ti.com> MIME-Version: 1.0 Cc: Peter Ujfalusi , Tomi Valkeinen X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Peter Ujfalusi The functions can be used to check a component (by it's of_node) if it is part of the omapdss display or output list. If the component is found, it means that the driver is loaded. Signed-off-by: Peter Ujfalusi Signed-off-by: Tomi Valkeinen --- drivers/gpu/drm/omapdrm/dss/display.c | 18 ++++++++++++++++++ drivers/gpu/drm/omapdrm/dss/omapdss.h | 3 +++ drivers/gpu/drm/omapdrm/dss/output.c | 13 +++++++++++++ 3 files changed, 34 insertions(+) diff --git a/drivers/gpu/drm/omapdrm/dss/display.c b/drivers/gpu/drm/omapdrm/dss/display.c index e567ff68b216..94c012e0584b 100644 --- a/drivers/gpu/drm/omapdrm/dss/display.c +++ b/drivers/gpu/drm/omapdrm/dss/display.c @@ -132,6 +132,24 @@ void omapdss_unregister_display(struct omap_dss_device *dssdev) } EXPORT_SYMBOL(omapdss_unregister_display); +bool omapdss_component_is_display(struct device_node *node) +{ + struct omap_dss_device *dssdev; + bool found = false; + + mutex_lock(&panel_list_mutex); + list_for_each_entry(dssdev, &panel_list, panel_list) { + if (dssdev->dev->of_node == node) { + found = true; + goto out; + } + } +out: + mutex_unlock(&panel_list_mutex); + return found; +} +EXPORT_SYMBOL(omapdss_component_is_display); + struct omap_dss_device *omap_dss_get_device(struct omap_dss_device *dssdev) { if (!try_module_get(dssdev->owner)) diff --git a/drivers/gpu/drm/omapdrm/dss/omapdss.h b/drivers/gpu/drm/omapdrm/dss/omapdss.h index 00ebf1f71f6b..fa34b68a676b 100644 --- a/drivers/gpu/drm/omapdrm/dss/omapdss.h +++ b/drivers/gpu/drm/omapdrm/dss/omapdss.h @@ -939,4 +939,7 @@ struct dispc_ops { void dispc_set_ops(const struct dispc_ops *o); const struct dispc_ops *dispc_get_ops(void); +bool omapdss_component_is_display(struct device_node *node); +bool omapdss_component_is_output(struct device_node *node); + #endif /* __OMAP_DRM_DSS_H */ diff --git a/drivers/gpu/drm/omapdrm/dss/output.c b/drivers/gpu/drm/omapdrm/dss/output.c index 2b999dc48621..655c5d73eac9 100644 --- a/drivers/gpu/drm/omapdrm/dss/output.c +++ b/drivers/gpu/drm/omapdrm/dss/output.c @@ -107,6 +107,19 @@ void omapdss_unregister_output(struct omap_dss_device *out) } EXPORT_SYMBOL(omapdss_unregister_output); +bool omapdss_component_is_output(struct device_node *node) +{ + struct omap_dss_device *out; + + list_for_each_entry(out, &output_list, list) { + if (out->dev->of_node == node) + return true; + } + + return false; +} +EXPORT_SYMBOL(omapdss_component_is_output); + struct omap_dss_device *omap_dss_get_output(enum omap_dss_output_id id) { struct omap_dss_device *out;