From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ajay Kumar Subject: [RFC V3 1/3] drm/bridge: add helper functions to support bridge chain Date: Fri, 09 May 2014 20:23:00 +0530 Message-ID: <1399647182-20951-2-git-send-email-ajaykumar.rs@samsung.com> References: <1399647182-20951-1-git-send-email-ajaykumar.rs@samsung.com> Return-path: Received: from mailout1.samsung.com ([203.254.224.24]:51156 "EHLO mailout1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756789AbaEIOya (ORCPT ); Fri, 9 May 2014 10:54:30 -0400 Received: from epcpsbgr2.samsung.com (u142.gpu120.samsung.co.kr [203.254.230.142]) by mailout1.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0N5B003R0AQS1D10@mailout1.samsung.com> for linux-samsung-soc@vger.kernel.org; Fri, 09 May 2014 23:54:28 +0900 (KST) In-reply-to: <1399647182-20951-1-git-send-email-ajaykumar.rs@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org Cc: robdclark@gmail.com, seanpaul@chromium.org, a.hajda@samsung.com, inki.dae@samsung.com, daniel.vetter@ffwll.ch, ajaynumb@gmail.com, joshi@samsung.com, prashanth.g@samsung.com, Ajay Kumar Add helper functions to create bridge chain and to call the corresponding next_bridge functions. Signed-off-by: Ajay Kumar Suggested-by: Rob Clark --- include/drm/drm_crtc.h | 72 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index e55fccb..91ab89c 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -619,6 +619,7 @@ struct drm_bridge_funcs { struct drm_bridge { struct drm_device *dev; struct list_head head; + struct drm_bridge *next_bridge; struct drm_mode_object base; @@ -1073,6 +1074,77 @@ static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev, return mo ? obj_to_encoder(mo) : NULL; } +static inline int drm_bridge_add_to_chain(struct drm_bridge *head, + struct drm_bridge *last) +{ + struct drm_bridge *temp = head; + + if (head && last) { + while (temp->next_bridge) + temp = temp->next_bridge; + + temp->next_bridge = last; + return 0; + } + + return -EINVAL; +} + +static inline void drm_next_bridge_mode_fixup(struct drm_bridge *bridge, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + if (bridge && bridge->next_bridge && bridge->next_bridge->funcs && + bridge->next_bridge->funcs->mode_fixup) + bridge->next_bridge->funcs->mode_fixup(bridge->next_bridge, + mode, adjusted_mode); +} + +static inline void drm_next_bridge_disable(struct drm_bridge *bridge) +{ + if (bridge && bridge->next_bridge && bridge->next_bridge->funcs && + bridge->next_bridge->funcs->disable) + bridge->next_bridge->funcs->disable(bridge->next_bridge); +} + +static inline void drm_next_bridge_post_disable(struct drm_bridge *bridge) +{ + if (bridge && bridge->next_bridge && bridge->next_bridge->funcs && + bridge->next_bridge->funcs->post_disable) + bridge->next_bridge->funcs->post_disable(bridge->next_bridge); +} + +static inline void drm_next_bridge_mode_set(struct drm_bridge *bridge, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + if (bridge && bridge->next_bridge && bridge->next_bridge->funcs && + bridge->next_bridge->funcs->mode_set) + bridge->next_bridge->funcs->mode_set(bridge->next_bridge, + mode, adjusted_mode); +} + +static inline void drm_next_bridge_pre_enable(struct drm_bridge *bridge) +{ + if (bridge && bridge->next_bridge && bridge->next_bridge->funcs && + bridge->next_bridge->funcs->pre_enable) + bridge->next_bridge->funcs->pre_enable(bridge->next_bridge); +} + +static inline void drm_next_bridge_enable(struct drm_bridge *bridge) +{ + if (bridge && bridge->next_bridge && bridge->next_bridge->funcs && + bridge->next_bridge->funcs->enable) + bridge->next_bridge->funcs->enable(bridge->next_bridge); +} + +static inline void drm_next_bridge_destroy(struct drm_bridge *bridge) +{ + if (bridge && bridge->next_bridge && bridge->next_bridge->funcs && + bridge->next_bridge->funcs->destroy) + bridge->next_bridge->funcs->destroy(bridge->next_bridge); +} + /* Plane list iterator for legacy (overlay only) planes. */ #define drm_for_each_legacy_plane(plane, planelist) \ list_for_each_entry(plane, planelist, head) \ -- 1.7.9.5