Sean Paul 24557865c8 drm: Add Content Protection property ... This patch adds a new optional connector property to allow userspace to enable protection over the content it is displaying. This will typically be implemented by the driver using HDCP. The property is a tri-state with the following values: - OFF: Self explanatory, no content protection - DESIRED: Userspace requests that the driver enable protection - ENABLED: Once the driver has authenticated the link, it sets this value The driver is responsible for downgrading ENABLED to DESIRED if the link becomes unprotected. The driver should also maintain the desiredness of protection across hotplug/dpms/suspend. If this looks familiar, I posted [1] this 3 years ago. We have been using this in ChromeOS across exynos, mediatek, and rockchip over that time. Changes in v2: - Pimp kerneldoc for content_protection_property (Daniel) - Drop sysfs attribute Changes in v3: - None Changes in v4: - Changed kerneldoc to recommend userspace polling (Daniel) - Changed kerneldoc to briefly describe how to attach the property (Daniel) Changes in v5: - checkpatch whitespace noise - Change DRM_MODE_CONTENT_PROTECTION_OFF to DRM_MODE_CONTENT_PROTECTION_UNDESIRED Changes in v6: - None Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Sean Paul <seanpaul@chromium.org> [1] https://lists.freedesktop.org/archives/dri-devel/2014-December/073336.html Link: https://patchwork.freedesktop.org/patch/msgid/20180108195545.218615-4-seanpaul@chromium.org		2018-01-08 14:57:41 -05:00
..
bridge	drm/bridge/sii8620: add remote control support	2017-10-11 13:14:25 +02:00
i2c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
tinydrm	drm/tinydrm: Use drm_fb_cma_fbdev_init_with_funcs/fini()	2017-12-10 15:37:07 +01:00
ttm	drm/ttm: use an ttm operation ctx for ttm_bo_move_xxx	2017-12-15 17:14:25 -05:00
amd_asic_type.h	drm/amdgpu Moving amdgpu asic types to a separate file	2017-10-18 10:56:27 -04:00
ati_pcigart.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
drm_agpsupport.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
drm_atomic.h	drm/doc: Move legacy kms helpers to the very end	2017-12-15 11:26:54 +01:00
drm_atomic_helper.h	drm: Move drm_plane_helper_check_state() into drm_atomic_helper.c	2017-11-20 21:14:22 +02:00
drm_auth.h	drm: Add drm_object lease infrastructure [v5]	2017-10-25 16:31:29 +10:00
drm_blend.h	drm: Add DRM_MODE_ROTATE_ and DRM_MODE_REFLECT_ to UAPI	2017-05-22 09:49:48 +02:00
drm_bridge.h	drm/bridge: change return type of drm_bridge_add function	2017-08-21 08:51:53 +05:30
drm_cache.h	drm: Move drm_clflush prototypes to drm_cache header file	2017-01-10 11:17:01 +01:00
drm_color_mgmt.h	drm: drm_color_mgmt.h needs struct drm_crtc declaration	2017-05-02 10:30:23 +02:00
drm_connector.h	drm: Add Content Protection property	2018-01-08 14:57:41 -05:00
drm_crtc.h	drm/mode_object: fix documentation for object lookups.	2017-11-10 13:50:47 +10:00
drm_crtc_helper.h	drm/atomic: Acquire connection_mutex lock in drm_helper_probe_single_connector_modes, v4.	2017-04-06 21:29:23 +02:00
drm_debugfs.h	drm/debugfs: Add kerneldoc	2017-03-24 09:36:06 +01:00
drm_debugfs_crc.h	drm: Add API for capturing frame CRCs	2016-10-17 16:44:34 +02:00
drm_device.h	drm: Add drm_device->fb_helper pointer	2017-10-31 19:06:05 +01:00
drm_displayid.h	drm/edid: add displayid detailed 1 timings to the modelist. (v1.1)	2016-05-23 11:35:31 +10:00
drm_dp_dual_mode_helper.h	drm: Fix LSPCON kernel-doc	2016-10-19 18:20:40 +03:00
drm_dp_helper.h	Merge tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-next	2017-12-04 05:42:49 +10:00
drm_dp_mst_helper.h	drm/dp/mst: Sideband message transaction to power up/down nodes	2017-09-11 16:03:57 +03:00
drm_drv.h	Merge airlied/drm-next into drm-misc-next	2017-11-21 14:17:56 +01:00
drm_edid.h	drm: Update edid-derived drm_display_info fields at edid property set [v2]	2017-12-13 14:51:37 +01:00
drm_encoder.h	Merge airlied/drm-next into drm-misc-next	2017-11-21 14:17:56 +01:00
drm_encoder_slave.h	drm: Don't include <drm/drm_encoder.h> in <drm/drm_crtc.h>	2016-12-18 16:29:29 +05:30
drm_fb_cma_helper.h	drm/cma-helper: Add drm_fb_cma_fbdev_init/fini()	2017-12-08 14:27:47 +01:00
drm_fb_helper.h	drm/fb-helper: Add drm_fb_helper_defio_init()	2017-12-20 14:52:22 +01:00
drm_file.h	drm: introduce sync objects (v4)	2017-06-14 12:10:22 +10:00
drm_fixed.h
drm_flip_work.h	drm/kms-helpers: Use recommened kerneldoc for struct member refs	2017-01-25 16:18:57 +01:00
drm_fourcc.h	drm: Add mode_config .get_format_info() hook	2017-03-22 19:45:00 +02:00
drm_framebuffer.h	drm/framebuffer: Print task that allocated the fb in debug info.	2017-12-20 15:30:17 +01:00
drm_gem.h	drm/gem: Add drm_gem_dumb_map_offset()	2017-07-29 13:49:55 +02:00
drm_gem_cma_helper.h	Merge tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-next	2017-12-04 05:42:49 +10:00
drm_gem_framebuffer_helper.h	drm/gem-fb-helper: Use debug message on gem lookup failure	2017-09-16 14:06:53 +02:00
drm_global.h	drm: drop extern from function decls	2017-03-24 09:36:06 +01:00
drm_hashtab.h	drm: drop extern from function decls	2017-03-24 09:36:06 +01:00
drm_ioctl.h	new helper: drm_ioctl_kernel()	2017-05-27 15:39:28 -04:00
drm_irq.h	drm: Extract drm_vblank.[hc]	2017-06-01 08:02:14 +02:00
drm_lease.h	drm: Add four ioctls for managing drm mode object leases [v7]	2017-10-25 16:31:30 +10:00
drm_legacy.h	drm: document drm_auth.c	2016-06-21 22:10:55 +02:00
drm_mipi_dsi.h	drm/dsi: Implement DCS set/get display brightness	2016-08-24 13:34:00 +02:00
drm_mm.h	drm/drm_mm.h: Fix the name of the referenced function in comment	2017-11-02 11:10:47 -02:00
drm_mode_config.h	drm-misc-next for 4.16:	2017-12-22 10:00:38 +10:00
drm_mode_object.h	drm: Add four ioctls for managing drm mode object leases [v7]	2017-10-25 16:31:30 +10:00
drm_modes.h	drm: add helper functions for YCBCR420 handling	2017-07-14 21:23:54 +03:00
drm_modeset_helper.h	drm/modeset-helper: Add simple modeset suspend/resume helpers	2017-11-30 18:18:08 +01:00
drm_modeset_helper_vtables.h	drm/edid: make drm_edid_to_eld() static	2017-11-07 17:43:35 +02:00
drm_modeset_lock.h	drm/atomic: Prepare drm_modeset_lock infrastructure for interruptible waiting, v2.	2017-09-13 09:50:52 +02:00
drm_of.h	main drm pull request for v4.15	2017-11-15 20:42:10 -08:00
drm_os_linux.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
drm_panel.h	drm: make drm_panel.h self-contained	2017-05-16 17:17:02 +02:00
drm_pci.h	drm/pci: Deprecate drm_pci_init/exit completely	2017-06-20 10:41:03 +02:00
drm_pciids.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
drm_plane.h	Merge airlied/drm-next into drm-misc-next	2017-11-21 14:17:56 +01:00
drm_plane_helper.h	drm: Move drm_plane_helper_check_state() into drm_atomic_helper.c	2017-11-20 21:14:22 +02:00
drm_prime.h	drm: Extract drm_vblank.[hc]	2017-06-01 08:02:14 +02:00
drm_print.h	drm/print: Unconfuse kerneldoc	2017-12-15 11:13:39 +01:00
drm_property.h	drm/mode_object: fix documentation for object lookups.	2017-11-10 13:50:47 +10:00
drm_rect.h	drm/doc: move printf helpers out of drmP.h	2017-05-31 09:59:41 +02:00
drm_scdc_helper.h	drm: Fix warning when building docs for scdc_helper	2017-07-31 14:24:14 +02:00
drm_simple_kms_helper.h	drm: Plumb modifiers through plane init	2017-08-01 17:50:06 +01:00
drm_syncobj.h	drm/syncobj: some kerneldoc polish	2017-12-15 11:26:52 +01:00
drm_sysfs.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
drm_utils.h	drm: Add panel orientation quirks, v6.	2017-12-04 23:03:21 +01:00
drm_vblank.h	drm: Add CRTC_GET_SEQUENCE and CRTC_QUEUE_SEQUENCE ioctls [v3]	2017-10-23 11:15:03 +10:00
drm_vma_manager.h	drm/vma-manager: drm_vma_node_start() constify argument	2017-11-11 11:19:37 +01:00
drmP.h	drm: Add new LEASE debug level	2017-10-25 16:31:29 +10:00
gma_drm.h
gpu_scheduler.h	drm/sched: move fence slab handling to module init/exit	2017-12-07 11:52:14 -05:00
gpu_scheduler_trace.h	drm: move amd_gpu_scheduler into common location	2017-12-07 11:51:56 -05:00
i915_component.h	drm/i915/dp: DP audio API changes for MST	2016-09-22 09:01:55 -07:00
i915_drm.h	x86/early-quirks: export the stolen region as a resource	2017-12-12 12:30:18 +02:00
i915_pciids.h	drm/i915/cfl: Adding more Coffee Lake PCI IDs.	2017-12-20 11:24:25 -08:00
intel-gtt.h	drm/i915: prefer resource_size_t for everything stolen	2017-12-12 12:30:22 +02:00
intel_lpe_audio.h	ALSA: x86: Register multiple PCM devices for the LPE audio card	2017-05-03 16:24:00 +03:00
spsc_queue.h	drm: move amd_gpu_scheduler into common location	2017-12-07 11:51:56 -05:00