From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ajay Kumar Subject: [PATCH V4 05/10] drm/bridge: add helper functions to support bridge chain Date: Wed, 11 Jun 2014 23:57:03 +0530 Message-ID: <1402511228-18945-6-git-send-email-ajaykumar.rs@samsung.com> References: <1402511228-18945-1-git-send-email-ajaykumar.rs@samsung.com> Return-path: In-reply-to: <1402511228-18945-1-git-send-email-ajaykumar.rs@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org To: dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org Cc: inki.dae@samsung.com, seanpaul@google.com, ajaynumb@gmail.com, robdclark@gmail.com, daniel.vetter@ffwll.ch, thierry.reding@gmail.com, joshi@samsung.com, prashanth.g@samsung.com, marcheu@chromium.org, Ajay Kumar List-Id: devicetree@vger.kernel.org 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 a7fac56..ba6a0d2 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -640,6 +640,7 @@ 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; @@ -1148,6 +1149,77 @@ drm_property_blob_find(struct drm_device *dev, uint32_t id) return mo ? obj_to_blob(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