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2013-12-18drm/dp: Clarify automated test constant and add constant for FAUX test patternTodd Previte1-1/+2
- DP_TEST_LINK_PATTERN is ambiguous, rename to DP_TEST_LINK_VIDEO_PATTERN to clarify - Added DP_TEST_LINK_FAUX_PATTERN to support automated testing of Fast AUX Signed-off-by: Todd Previte <tprevite@gmail.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18drm/dp: Use AUX constants from specificationThierry Reding1-16/+16
The current values seem to be defined in a format that's specific to the i915, gma500 and radeon drivers. To make this more generally useful, use the values as defined in the specification. While at it, prefix the constants with DP_ for improved namespacing. Signed-off-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-10-09drm/dp: add helper for checking DP_ENHANCED_FRAME_CAP in DPCDJani Nikula1-0/+7
Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-10-01drm/dp: constify DP DPCD helpersJani Nikula1-8/+8
None of the DP DPCD helpers need to modify the DPCD. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-10-01drm/dp: add defines for downstream port typesJani Nikula1-4/+4
Detailed cap info at address 80h is not available with DPCD ver 1.0. Whether such devices exist in the wild I don't know, but there should be no harm done in having the defines for downstream port 0 in address 05h. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Todd Previte <tprevite@gmail.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-07-18drm: Added SDP and VSC structures for handling PSR for eDPShobhit Kumar1-1/+30
SDP header and SDP VSC header as per eDP 1.3 spec, section 3.5, chapter "PSR Secondary Data Package Support". v2: Modified and corrected the structures to be more in line for kernel coding guidelines and rebased the code on Paulo's DP patchset v3: removing unecessary identation at DP_RECEIVER_CAP_SIZE v4: moving them to include/drm/drm_dp_helper.h and also already icluding EDP_PSR_RECEIVER_CAP_SIZE to add everything needed for PSR at once at drm_dp_helper.h v5: Fix SDP VSC header and identation by (Paulo Zanoni) and remove i915 from title (Daniel Vetter) v6: Fix spec version and move comments from code to commit message since numbers might change in the future (by Paulo Zanoni). CC: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Sateesh Kavuri <sateesh.kavuri@intel.com> Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-11-28drm/doc: add new dp helpers into drm DocBookDaniel Vetter1-0/+8
I didn't bother with documenting the really trivial new "extract something from dpcd" helpers, but the i2c over aux ch is now documented a bit. v2: Clarify the comment for i2c_dp_aux_add_bus a bit. v3: Fix more spelling fail spotted by Laurent Pinchart. Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-10-22drm: extract drm_dp_max_lane_count helperDaniel Vetter1-0/+7
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-10-22drm: extract dp link bw helpersDaniel Vetter1-0/+8
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-10-22drm: extract dp link train delay functions from radeonDaniel Vetter1-0/+5
This requires a few changes since that dpcd value is above the range currently cached by radeon. I've check the dp specs, and above 0xf there's a big gap and nothing that looks like we should cache it while a given device is plugged in. It's also the same value that i915.ko uses. Hence extend the various dpcd arrays in the radeon driver, use proper symbolic constants where applicable (one place overallocated the dpcd array to 25 bytes). Then also drop the rd_interval cache - radeon_dp_link_train_init re-reads the dpcd block, so the values we'll consume in train_cr and train_ce will always be fresh. To avoid needless diff-churn, #define the old size of dpcd as the new one and keep it around. v2: Alex Deucher noticed one place where I've forgotten to replace 8 with DP_RECEIVER_CAP_SIZE. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-10-22drm: extract helpers to compute new training values from sink requestDaniel Vetter1-0/+4
Safe for the minor difference that the intel versions get an offset into the link_status as an argument, both are the same again. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-10-22drm: dp helper: extract drm_dp_clock_recovery_okDaniel Vetter1-0/+2
radeon and intel use the exact same definition. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Dave Airlie <airlied@gmail.com> v2: Kill 2 more helpers in intel_dp.c that I've missed. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-10-22drm: dp helper: extract drm_dp_channel_eq_okDaniel Vetter1-0/+5
radeon and intel use the exact same definition. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-09-26drm/dp: Make sink count DP 1.2 awareAdam Jackson1-1/+2
Signed-off-by: Adam Jackson <ajax@redhat.com> Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-09-26drm/dp: Document DP spec versions for various DPCD registersAdam Jackson1-20/+32
Note with a comment anything newer than DP 1.1a. Obviously this needs some work still... Signed-off-by: Adam Jackson <ajax@redhat.com> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-09-26drm/dp: Update DPCD definesAdam Jackson1-4/+56
Sources: DP, eDP, and DP interop specs, and a VESA slideshow about DP 1.2 for the MST bits. Tested-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Adam Jackson <ajax@redhat.com> Acked-by: Dave Airlie <airlied@gmail.com> Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-05-22drm/dp: Add DPCD defines for register 0x007Adam Jackson1-0/+4
Low four bits are downstream port count. High bit indicates peer OUI support. OUI matching will allow us to do additional per-sink handling for things like DP->VGA bandwidth limits or (hopefully) the iMac-as- display hack. Signed-off-by: Adam Jackson <ajax@redhat.com> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-05-22drm/dp: Add DPCD OUI register definesAdam Jackson1-0/+4
DisplayPort has an escape hatch by which sources and sinks can identify each other. We would prefer not to notice this, but I suspect we're going to need to. Signed-off-by: Adam Jackson <ajax@redhat.com> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-11-01drm/radeon/kms: properly set panel mode for eDPAlex Deucher1-0/+3
This should make eDP more reliable. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-10-20drm/i915: add DP test request handlingJesse Barnes1-0/+25
DPCD 1.1+ adds some automated test infrastructure support. Add support for reading the IRQ source and jumping to a test handling routine if needed. Subsequent patches will handle particular tests; this patch just ACKs any requested tests by default. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-10-20drm: Add Panel Self Refresh DP addressesBen Widawsky1-0/+36
Add the addresses and definitions I care about for Panel Self Refresh, as documented in the eDP spec. I'm sending these out before some other patches because this should be a fairly simple one to get upstream and not require too much fuss (where the others may have some fuss). This file is a mess with white spacing. I tried to stay consistent with the surrounding code. v2: had some silly mistakes in v1 which Keith caught Cc: Dave Airlie <airlied@redhat.com> Cc: Keith Packard <keithp@keithp.com> Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-05-20drm/dp: add some new DP regs for DP 1.2Alex Deucher1-0/+5
Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-10-08drm/i915: fetch eDP configuration data from the VBTJesse Barnes1-0/+3
We need to use some of these values in eDP configurations, so be sure to fetch them and store them in the i915 private structure. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2009-12-08drm/radeon/kms: add support for DP modesettingAlex Deucher1-15/+42
Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-12-08drm/radeon/kms: DP fixes and cleanup from the ddxAlex Deucher1-1/+3
- dpcp -> dpcd - fix up dig encoder routing - aux transaction table takes delay in 10 usec units Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-12-08drm/radeon/kms: initial radeon displayport portingDave Airlie1-0/+2
This is enough to retrieve EDID and DPCP. Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-12-08drm/intel: refactor DP i2c support and DP common header to drm helperDave Airlie1-0/+149
Both radeon and nouveau can re-use this code so move it up a level so they can. However the hw interfaces for aux ch are different enough that the code to translate from mode, address, bytes to actual hw interfaces isn't generic, so move that code into the Intel driver. Signed-off-by: Dave Airlie <airlied@redhat.com>
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