kernel/include/drm/drm_edid.h, branch linux-3.17.y

drm/edid: Parse and handle HDMI deep color modes.

2014-06-02T22:37:34Z

Check the HDMI cea block for deep color mode bits. If available, assign the highest supported bpc for a hdmi display, corresponding to the given deep color modes. Signed-off-by: Mario Kleiner Signed-off-by: Alex Deucher

Merge branch 'drm-next-3.12' of git://people.freedesktop.org/~agd5f/linux into drm-next

2013-09-01T23:31:40Z

Alex writes: This is the radeon drm-next request. Big changes include: - support for dpm on CIK parts - support for ASPM on CIK parts - support for berlin GPUs - major ring handling cleanup - remove the old 3D blit code for bo moves in favor of CP DMA or sDMA - lots of bug fixes [airlied: fix up a bunch of conflicts from drm_order removal] * 'drm-next-3.12' of git://people.freedesktop.org/~agd5f/linux: (898 commits) drm/radeon/dpm: make sure dc performance level limits are valid (CI) drm/radeon/dpm: make sure dc performance level limits are valid (BTC-SI) (v2) drm/radeon: gcc fixes for extended dpm tables drm/radeon: gcc fixes for kb/kv dpm drm/radeon: gcc fixes for ci dpm drm/radeon: gcc fixes for si dpm drm/radeon: gcc fixes for ni dpm drm/radeon: gcc fixes for trinity dpm drm/radeon: gcc fixes for sumo dpm drm/radeonn: gcc fixes for rv7xx/eg/btc dpm drm/radeon: gcc fixes for rv6xx dpm drm/radeon: gcc fixes for radeon_atombios.c drm/radeon: enable UVD interrupts on CIK drm/radeon: fix init ordering for r600+ drm/radeon/dpm: only need to reprogram uvd if uvd pg is enabled drm/radeon: check the return value of uvd_v1_0_start in uvd_v1_0_init drm/radeon: split out radeon_uvd_resume from uvd_v4_2_resume radeon kms: fix uninitialised hotplug work usage in r100_irq_process() drm/radeon/audio: set up the sads on DCE3.2 asics drm/radeon: fix handling of variable sized arrays for router objects ... Conflicts: drivers/gpu/drm/i915/i915_dma.c drivers/gpu/drm/i915/i915_gem_dmabuf.c drivers/gpu/drm/i915/intel_pm.c drivers/gpu/drm/radeon/cik.c drivers/gpu/drm/radeon/ni.c drivers/gpu/drm/radeon/r600.c

drm/edid: add a helper function to extract the speaker allocation data block (v3)

2013-08-30T20:30:43Z

This adds a helper function to extract the speaker allocation data block from the EDID. This data block describes what speakers are present on the display device. v2: update per Ville Syrjälä's comments v3: fix copy/paste typo in memory allocation Signed-off-by: Alex Deucher Reviewed-by: Ville Syrjälä Tested-by: Rafał Miłecki

drm: Add a helper to forge HDMI vendor infoframes

2013-08-29T22:41:49Z

This can then be used by DRM drivers to setup their vendor infoframes. v2: Fix hmdi typo (Simon Farnsworth) v3: Adapt to the hdmi_vendor_infoframe rename Signed-off-by: Damien Lespiau Reviewed-by: Simon Farnsworth Reviewed-by: Ville Syrjälä Reviewed-by: Thierry Reding Signed-off-by: Dave Airlie

drm: add drm_edid_to_eld helper extracting SADs from EDID (v2)

2013-04-23T22:03:58Z

Some devices (ATI/AMD cards) don't support passing ELD struct to the hardware but just require filling specific registers and then the hardware/firmware does the rest. In such cases we need to read the info from SAD blocks and put them in the correct registers. agd5f: note that the returned pointer needs to be kfreed as per Christian's suggestion. v2: fix warning Signed-off-by: Rafał Miłecki Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm: Add HDMI infoframe helpers

2013-02-22T07:20:10Z

Add a generic helper to fill in an HDMI AVI infoframe with data extracted from a DRM display mode. Signed-off-by: Thierry Reding Reviewed-by: Alex Deucher

drm/edid: Add packed attribute to new gtf2 and cvt structs

2012-04-23T16:41:17Z

The new structs added in struct detailed_data_monitor_range must be marked with packed attribute although the outer struct itself is already marked as packed. Otherwise these 7-bytes structs may be aligned, and give the wrong position and size for the data. Signed-off-by: Takashi Iwai Acked-by: Adam Jackson Signed-off-by: Dave Airlie

drm/edid: Update range descriptor struct for EDID 1.4

2012-04-20T11:57:37Z

Signed-off-by: Adam Jackson Tested-by: Takashi Iwai Reviewed-by: Rodrigo Vivi Signed-off-by: Dave Airlie

drm: allow loading an EDID as firmware to override broken monitor

2012-03-20T10:09:28Z

Broken monitors and/or broken graphic boards may send erroneous or no EDID data. This also applies to broken KVM devices that are unable to correctly forward the EDID data of the connected monitor but invent their own fantasy data. This patch allows to specify an EDID data set to be used instead of probing the monitor for it. It contains built-in data sets of frequently used screen resolutions. In addition, a particular EDID data set may be provided in the /lib/firmware directory and loaded via the firmware interface. The name is passed to the kernel as module parameter of the drm_kms_helper module either when loaded options drm_kms_helper edid_firmware=edid/1280x1024.bin or as kernel commandline parameter drm_kms_helper.edid_firmware=edid/1280x1024.bin It is also possible to restrict the usage of a specified EDID data set to a particular connector. This is done by prepending the name of the connector to the name of the EDID data set using the syntax edid_firmware=[:] such as, for example, edid_firmware=DVI-I-1:edid/1920x1080.bin in which case no other connector will be affected. The built-in data sets are Resolution Name -------------------------------- 1024x768 edid/1024x768.bin 1280x1024 edid/1280x1024.bin 1680x1050 edid/1680x1050.bin 1920x1080 edid/1920x1080.bin They are ignored, if a file with the same name is available in the /lib/firmware directory. The built-in EDID data sets are based on standard timings that may not apply to a particular monitor and even crash it. Ideally, EDID data of the connected monitor should be used. They may be obtained through the drm/cardX/cardX-/edid entry in the /sys/devices PCI directory of a correctly working graphics adapter. It is even possible to specify the name of an EDID data set on-the-fly via the /sys/module interface, e.g. echo edid/myedid.bin >/sys/module/drm_kms_helper/parameters/edid_firmware The new screen mode is considered when the related kernel function is called for the first time after the change. Such calls are made when the X server is started or when the display settings dialog is opened in an already running X server. Signed-off-by: Carsten Emde Signed-off-by: Dave Airlie

drm: support routines for HDMI/DP ELD

2011-09-21T21:52:41Z

ELD (EDID-Like Data) describes to the HDMI/DP audio driver the audio capabilities of the plugged monitor. This adds drm_edid_to_eld() for converting EDID to ELD. The converted ELD will be saved in a new drm_connector.eld[128] data field. This is necessary because the graphics driver will need to fixup some of the data fields (eg. HDMI/DP connection type, AV sync delay) before writing to the hardware ELD buffer. drm_av_sync_delay() will help the graphics drivers dynamically compute the AV sync delay for fixing-up the ELD. ELD selection policy: it's possible for one encoder to be associated with multiple connectors (ie. monitors), in which case the first found ELD will be returned by drm_select_eld(). This policy may not be suitable for all users, but let's start it simple first. The impact of ELD selection policy: assume there are two monitors, one supports stereo playback and the other has 8-channel output; cloned display mode is used, so that the two monitors are associated with the same internal encoder. If only the stereo playback capability is reported, the user won't be able to start 8-channel playback; if the 8-channel ELD is reported, then user space applications may send 8-channel samples down, however the user may actually be listening to the 2-channel monitor and not connecting speakers to the 8-channel monitor. According to James, many TVs will either refuse the display anything or pop-up an OSD warning whenever they receive hdmi audio which they cannot handle. Eventually we will require configurability and/or per-monitor audio control even when the video is cloned. CC: Zhao Yakui CC: Wang Zhenyu CC: Jeremy Bush CC: Christopher White CC: Pierre-Louis Bossart CC: Paul Menzel CC: James Cloos CC: Chris Wilson Signed-off-by: Ben Skeggs Signed-off-by: Wu Fengguang Signed-off-by: Keith Packard