Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753892AbcJKO4a (ORCPT ); Tue, 11 Oct 2016 10:56:30 -0400 Received: from foss.arm.com ([217.140.101.70]:35596 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752666AbcJKOyo (ORCPT ); Tue, 11 Oct 2016 10:54:44 -0400 From: Brian Starkey To: dri-devel@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, liviu.dudau@arm.com, robdclark@gmail.com, hverkuil@xs4all.nl, eric@anholt.net, ville.syrjala@linux.intel.com, daniel@ffwll.ch Subject: [RFC PATCH 06/11] drm: Expose fb_id property for writeback connectors Date: Tue, 11 Oct 2016 15:54:03 +0100 Message-Id: <1476197648-24918-7-git-send-email-brian.starkey@arm.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1476197648-24918-1-git-send-email-brian.starkey@arm.com> References: <1476197648-24918-1-git-send-email-brian.starkey@arm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2080 Lines: 59 Expose the framebuffer for writeback connectors to userspace by attaching the fb_id property to them. Signed-off-by: Brian Starkey --- drivers/gpu/drm/drm_atomic.c | 9 +++++++++ drivers/gpu/drm/drm_connector.c | 4 ++++ 2 files changed, 13 insertions(+) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index b16b4fc..82e8e3a 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -986,12 +986,19 @@ int drm_atomic_connector_set_property(struct drm_connector *connector, * now?) atomic writes to DPMS property: */ return -EINVAL; + } else if (property == config->prop_fb_id) { + struct drm_framebuffer *fb = drm_framebuffer_lookup(dev, val); + drm_atomic_set_fb_for_connector(state, fb); + if (fb) + drm_framebuffer_unreference(fb); } else if (connector->funcs->atomic_set_property) { return connector->funcs->atomic_set_property(connector, state, property, val); } else { return -EINVAL; } + + return 0; } EXPORT_SYMBOL(drm_atomic_connector_set_property); @@ -1022,6 +1029,8 @@ drm_atomic_connector_get_property(struct drm_connector *connector, *val = (state->crtc) ? state->crtc->base.id : 0; } else if (property == config->dpms_property) { *val = connector->dpms; + } else if (property == config->prop_fb_id) { + *val = (state->fb) ? state->fb->base.id : 0; } else if (connector->funcs->atomic_get_property) { return connector->funcs->atomic_get_property(connector, state, property, val); diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 027d7a9..fb83870 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -249,6 +249,10 @@ int drm_connector_init(struct drm_device *dev, drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); } + if (connector_type == DRM_MODE_CONNECTOR_WRITEBACK) + drm_object_attach_property(&connector->base, + config->prop_fb_id, 0); + connector->debugfs_entry = NULL; out_put_type_id: if (ret) -- 1.7.9.5