lwn.git/include/drm/drm_dp_helper.h, branch v5.19-rc2

drm/dp: Move public DisplayPort headers into dp/

2022-01-17T10:25:44+00:00

Move all public DisplayPort headers into dp/ and update users. No functional changes. v3: * rebased onto latest drm-tip Signed-off-by: Thomas Zimmermann Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20220114114535.29157-5-tzimmermann@suse.de

drm/dp: note that DPCD 0x2002-0x2003 match 0x200-0x201

2022-01-11T15:28:44+00:00

DP_SINK_COUNT_ESI and DP_DEVICE_SERVICE_IRQ_VECTOR_ESI0 have the same contents as DP_SINK_COUNT and DP_DEVICE_SERVICE_IRQ_VECTOR, respectively. Signed-off-by: Jani Nikula Reviewed-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20220104184857.784563-1-jani.nikula@intel.com

drm/dp, drm/i915: Add support for VESA backlights using PWM for brightness control

2021-11-17T22:36:48+00:00

Now that we've added support to i915 for controlling panel backlights that need PWM to be enabled/disabled, let's finalize this and add support for controlling brightness levels via PWM as well. This should hopefully put us towards the path of supporting _ALL_ backlights via VESA's DPCD interface which would allow us to finally start trusting the DPCD again. Note however that we still don't enable using this by default on i915 when it's not needed, primarily because I haven't yet had a chance to confirm if it's safe to do this on the one machine in Intel's CI that had an issue with this: samus-fi-bdw. I have done basic testing of this on other machines though, by manually patching i915 to force it into PWM-only mode on some of my laptops. v2: * Correct documentation (thanks Doug!) * Get rid of backlight caps Signed-off-by: Lyude Paul Reviewed-by: Doug Anderson Cc: Rajeev Nandan Cc: Satadru Pramanik Link: https://patchwork.freedesktop.org/patch/msgid/20211105183342.130810-5-lyude@redhat.com

Merge drm/drm-next into drm-misc-next

2021-10-25T13:27:56+00:00

drm-misc-next hasn't been updated in a while and I need a post -rc2 state to merge some vc4 patches. Signed-off-by: Maxime Ripard

drm/dp: add helpers to read link training delays

2021-10-19T08:29:51+00:00

The link training delays are different and/or available in different DPCD offsets depending on: - Clock recovery vs. channel equalization - DPRX vs. LTTPR - 128b/132b vs. 8b/10b - DPCD 1.4+ vs. earlier Add helpers to get the correct delays in us, reading DPCD if necessary. This is more straightforward than trying to retrofit the existing helpers to take 128b/132b into account. Having to pass in the DPCD receiver cap field seems unavoidable, because reading it involves checking the revision and reading extended receiver cap. So unfortunately the interface is mixed cached and read as needed. v2: Remove delay_us < 0 check and the whole local var (Ville) Cc: Ville Syrjälä Reviewed-by: Ville Syrjälä Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20211014150059.28957-1-jani.nikula@intel.com

Merge tag 'drm-intel-next-2021-10-04' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

2021-10-11T06:53:57+00:00

Cross-subsystem Changes: - fbdev/efifb: Release PCI device's runtime PM ref during FB destr\ oy (Imre) i915 Core Driver Changes: - Only access SFC_DONE in media when not fused off for graphics 12 and newer. - Double Memory latency values from pcode for DG2 (Matt Roper) - ADL-S PCI ID update (Tejas) - New DG1 PCI ID (Jose) - Fix regression with uncore refactoring (Dave) i915 Display Changes: - ADL-P display (XE_LPD) fixes and updates (Ankit, Jani, Matt Roper, Anusham, Jose, Imre, Vandita) - DG2 display fixes (Ankit, Jani) - Expand PCH_CNP tweaked display workaround to all newer displays (Anshuman) - General display simplifications and clean-ups (Jani, Swati, Jose, Ville) - PSR Clean-ups, dropping support for BDW/HSD and enable PSR2 selective fetch by default (Jose, Gwan-gyeong) - Nuke ORIGIN_GTT (Jose) - Return proper DPRX link training result (Lee) - FBC related refactor and fixes (Ville) - Yet another attempt to solve the fast+narrow vs slow+wide eDP link training (Kai-Heng) - DP 2.0 preparation work (Jani) - Silence __iomem sparse warn (Ville) - Clean up DPLL stuff (Ville) - Fix various dp/edp max rates (Matt Atwood, Animesh, Jani) - Remove VBT ddi_port_info caching (Jani) - DSI driver improvements (Lee) - HDCP fixes (Juston) - Associate ACPI connector nodes with connector entries (Heikki) - Add support for out-of-bound hotplug events (Hans) - VESA vendor block and drm/i915 MSO use of it (Jani) - Fixes for bigjoiner (Ville) - Update memory bandwidth parameters (RK) - DMC related fixes (Chris, Jose) - HDR related fixes and improvements (Tejas) - g4x/vlv/chv CxSR/wm fixes/cleanups (Ville) - Use BIOS provided value for RKL Audio's HDA link (Kai-Heng) - Fix the dsc check while selecting min_cdclk (Vandita) - Split and constify vtable (Dave) - Add ww context to intel_dpt_pin (Maarten) - Fix bdb version check (Lukasz) - DP per-lane drive settings prep work and other DP fixes (Ville) Signed-off-by: Dave Airlie # gpg: Signature made Tue 05 Oct 2021 04:58:16 AEST # gpg: using RSA key 6D207068EEDD65091C2CE2A3FA625F640EEB13CA # gpg: Good signature from "Rodrigo Vivi " [unknown] # gpg: aka "Rodrigo Vivi " [unknown] # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 6D20 7068 EEDD 6509 1C2C E2A3 FA62 5F64 0EEB 13CA From: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/YVtPk6llsxBFiw7W@intel.com

drm/dp: Add Additional DP2 Headers

2021-09-30T21:17:38+00:00

Include FEC, DSC, Link Training related headers. Change since v2 - Align with the spec for DP_DSC_SUPPORT_AND_DSC_DECODER_COUNT Signed-off-by: Fangzhi Zuo Reviewed-by: Harry Wentland Signed-off-by: Rodrigo Siqueira Link: https://patchwork.freedesktop.org/patch/msgid/20210927192324.5428-1-Jerry.Zuo@amd.com

drm/dp: add helper for extracting adjust 128b/132b TX FFE preset

2021-09-20T15:45:35+00:00

The DP 2.0 128b/132b channel coding uses TX FFE presets instead of vswing and pre-emphasis. Cc: dri-devel@lists.freedesktop.org Reviewed-by: Ville Syrjälä Acked-by: Maxime Ripard Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/4ba129c51aeb01a5f210de7026abe704a554a178.1631191763.git.jani.nikula@intel.com

drm/dp: add LTTPR DP 2.0 DPCD addresses

2021-09-20T15:45:11+00:00

DP 2.0 brings some new DPCD addresses for PHY repeaters. Cc: dri-devel@lists.freedesktop.org Reviewed-by: Manasi Navare Acked-by: Maxime Ripard Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/def17e2329722f22c35807be26b35590ccb93bfd.1631191763.git.jani.nikula@intel.com

Merge tag 'drm-misc-next-2021-07-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2021-07-21T01:58:28+00:00

drm-misc-next for v5.15: UAPI Changes: Cross-subsystem Changes: - udmabuf: Add support for mapping hugepages - Add dma-buf stats to sysfs. - Assorted fixes to fbdev/omap2. - dma-buf: Document DMA_BUF_IOCTL_SYNC - Improve dma-buf non-dynamic exporter expectations better. - Add module parameters for dma-buf size and list limit. - Add HDMI codec support to vc4, to replace vc4's own codec. - Document dma-buf implicit fencing rules. - dma_resv_test_signaled test_all handling. Core Changes: - Extract i915's eDP backlight code into DRM helpers. - Assorted docbook updates. - Rework drm_dp_aux documentation. - Add support for the DP aux bus. - Shrink dma-fence-chain slightly. - Add alloc/free helpers for dma-fence-chain. - Assorted fixes to TTM., drm/of, bridge - drm_gem_plane_helper_prepare/cleanup_fb is now the default for gem drivers. - Small fix for scheduler completion. - Remove use of drm_device.irq_enabled. - Print the driver name to dmesg when registering framebuffer. - Export drm/gem's shadow plane handling, and use it in vkms. - Assorted small fixes. Driver Changes: - Add eDP backlight to nouveau. - Assorted fixes and cleanups to nouveau, panfrost, vmwgfx, anx7625, amdgpu, gma500, radeon, mgag200, vgem, vc4, vkms, omapdrm. - Add support for Samsung DB7430, Samsung ATNA33XC20, EDT ETMV570G2DHU, EDT ETM0350G0DH6, Innolux EJ030NA panels. - Fix some simple pannels missing bus_format and connector types. - Add mks-guest-stats instrumentation support to vmwgfx. - Merge i915-ttm topic branch. - Make s6e63m0 panel use Mipi-DBI helpers. - Add detect() supoprt for AST. - Use interrupts for hotplug on vc4. - vmwgfx is now moved to drm-misc-next, as sroland is no longer a maintainer for now. - vmwgfx now uses copies of vmware's internal device headers. - Slowly convert ti-sn65dsi83 over to atomic. - Rework amdgpu dma-resv handling. - Fix virtio fencing for planes. - Ensure amdgpu can always evict to SYSTEM. - Many drivers fixed for implicit fencing rules. - Set default prepare/cleanup fb for tiny, vram and simple helpers too. - Rework panfrost gpu reset and related serialization. - Update VKMS todo list. - Make bochs a tiny gpu driver, and use vram helper. - Use linux irq interfaces instead of drm_irq in some drivers. - Add support for Raspberry Pi Pico to GUD. Signed-off-by: Dave Airlie # gpg: Signature made Fri 16 Jul 2021 21:06:04 AEST # gpg: using RSA key B97BD6A80CAC4981091AE547FE558C72A67013C3 # gpg: Good signature from "Maarten Lankhorst " [expired] # gpg: aka "Maarten Lankhorst " [expired] # gpg: aka "Maarten Lankhorst " [expired] # gpg: Note: This key has expired! # Primary key fingerprint: B97B D6A8 0CAC 4981 091A E547 FE55 8C72 A670 13C3 From: Maarten Lankhorst Link: https://patchwork.freedesktop.org/patch/msgid/444811c3-cbec-e9d5-9a6b-9632eda7962a@linux.intel.com