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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-03 11:44:24 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-03 11:44:24 -0700 |
commit | 2f34c1231bfc9f2550f934acb268ac7315fb3837 (patch) | |
tree | ff8114b3b4ec4723a11b041c6b74c389e9f0eeb9 /Documentation/devicetree/bindings/display/bridge/megachips-stdpxxxx-ge-b850v3-fw.txt | |
parent | a3719f34fdb664ffcfaec2160ef20fca7becf2ee (diff) | |
parent | 8b03d1ed2c43a2ba5ef3381322ee4515b97381bf (diff) | |
download | linux-2f34c1231bfc9f2550f934acb268ac7315fb3837.tar.gz linux-2f34c1231bfc9f2550f934acb268ac7315fb3837.tar.bz2 linux-2f34c1231bfc9f2550f934acb268ac7315fb3837.zip |
Merge tag 'drm-for-v4.12' of git://people.freedesktop.org/~airlied/linux
Pull drm u pdates from Dave Airlie:
"This is the main drm pull request for v4.12. Apart from two fixes
pulls, everything should have been in drm-next for at least 2 weeks.
The biggest thing in here is AMD released the public headers for their
upcoming VEGA GPUs. These as always are quite a sizeable chunk of
header files. They've also added initial non-display support for those
GPUs, though they aren't available in production yet.
Otherwise it's pretty much normal.
New bridge drivers:
- megachips-stdpxxxx-ge-b850v3-fw LVDS->DP++
- generic LVDS bridge support.
Core:
- Displayport link train failure reporting to userspace
- debugfs interface cleaned up
- subsystem TODO in kerneldoc now
- Extended fbdev support (flipping and vblank wait)
- drm_platform removed
- EDP CRC support in helper
- HF-VSDB SCDC support in EDID parser
- Lots of code cleanups and header extraction
- Thunderbolt external GPU awareness
- Atomic helper improvements
- Documentation improvements
panel:
- Sitronix and Samsung new panel support
amdgpu:
- Preliminary vega10 support
- Multi-level page table support
- GPU sensor support for userspace
- PRT support for sparse buffers
- SR-IOV improvements
- Non-contig VRAM CPU mapping
i915:
- Atomic modesetting enabled by default on Gen5+
- LSPCON improvements
- Atomic state handling for cdclk
- GPU reset improvements
- In-kernel unit tests
- Geminilake improvements and color manager support
- Designware i2c fixes
- vblank evasion improvements
- Hotplug safe connector iterators
- GVT scheduler QoS support
- GVT Kabylake support
nouveau:
- Acceleration support for Pascal (GP10x).
- Rearchitecture of code handling proprietary signed firmware
- Fix GTX 970 with odd MMU configuration
- GP10B support
- GP107 acceleration support
vmwgfx:
- Atomic modesetting support for vmwgfx
omapdrm:
- Support for render nodes
- Refactor omapdss code
- Fix some probe ordering issues
- Fix too dark RGB565 rendering
sunxi:
- prelim rework for multiple pipes.
mali-dp:
- Color management support
- Plane scaling
- Power management improvements
imx-drm:
- Prefetch Resolve Engine/Gasket on i.MX6QP
- Deferred plane disabling
- Separate alpha support
mediatek:
- Mediatek SoC MT2701 support
rcar-du:
- Gen3 HDMI support
msm:
- 4k support for newer chips
- OPP bindings for gpu
- prep work for per-process pagetables
vc4:
- HDMI audio support
- fixes
qxl:
- minor fixes.
dw-hdmi:
- PHY improvements
- CSC fixes
- Amlogic GX SoC support"
* tag 'drm-for-v4.12' of git://people.freedesktop.org/~airlied/linux: (1778 commits)
drm/nouveau/fb/gf100-: Fix 32 bit wraparound in new ram detection
drm/nouveau/secboot/gm20b: fix the error return code in gm20b_secboot_tegra_read_wpr()
drm/nouveau/kms: Increase max retries in scanout position queries.
drm/nouveau/bios/bitP: check that table is long enough for optional pointers
drm/nouveau/fifo/nv40: no ctxsw for pre-nv44 mpeg engine
drm: mali-dp: use div_u64 for expensive 64-bit divisions
drm/i915: Confirm the request is still active before adding it to the await
drm/i915: Avoid busy-spinning on VLV_GLTC_PW_STATUS mmio
drm/i915/selftests: Allocate inode/file dynamically
drm/i915: Fix system hang with EI UP masked on Haswell
drm/i915: checking for NULL instead of IS_ERR() in mock selftests
drm/i915: Perform link quality check unconditionally during long pulse
drm/i915: Fix use after free in lpe_audio_platdev_destroy()
drm/i915: Use the right mapping_gfp_mask for final shmem allocation
drm/i915: Make legacy cursor updates more unsynced
drm/i915: Apply a cond_resched() to the saturated signaler
drm/i915: Park the signaler before sleeping
drm: mali-dp: Check the mclk rate and allow up/down scaling
drm: mali-dp: Enable image enhancement when scaling
drm: mali-dp: Add plane upscaling support
...
Diffstat (limited to 'Documentation/devicetree/bindings/display/bridge/megachips-stdpxxxx-ge-b850v3-fw.txt')
-rw-r--r-- | Documentation/devicetree/bindings/display/bridge/megachips-stdpxxxx-ge-b850v3-fw.txt | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/bridge/megachips-stdpxxxx-ge-b850v3-fw.txt b/Documentation/devicetree/bindings/display/bridge/megachips-stdpxxxx-ge-b850v3-fw.txt new file mode 100644 index 000000000000..7baa6582517e --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/megachips-stdpxxxx-ge-b850v3-fw.txt @@ -0,0 +1,94 @@ +Drivers for the second video output of the GE B850v3: + STDP4028-ge-b850v3-fw bridges (LVDS-DP) + STDP2690-ge-b850v3-fw bridges (DP-DP++) + +The video processing pipeline on the second output on the GE B850v3: + + Host -> LVDS|--(STDP4028)--|DP -> DP|--(STDP2690)--|DP++ -> Video output + +Each bridge has a dedicated flash containing firmware for supporting the custom +design. The result is that, in this design, neither the STDP4028 nor the +STDP2690 behave as the stock bridges would. The compatible strings include the +suffix "-ge-b850v3-fw" to make it clear that the driver is for the bridges with +the firmware specific for the GE B850v3. + +The hardware do not provide control over the video processing pipeline, as the +two bridges behaves as a single one. The only interfaces exposed by the +hardware are EDID, HPD, and interrupts. + +stdp4028-ge-b850v3-fw required properties: + - compatible : "megachips,stdp4028-ge-b850v3-fw" + - reg : I2C bus address + - interrupt-parent : phandle of the interrupt controller that services + interrupts to the device + - interrupts : one interrupt should be described here, as in + <0 IRQ_TYPE_LEVEL_HIGH> + - ports : One input port(reg = <0>) and one output port(reg = <1>) + +stdp2690-ge-b850v3-fw required properties: + compatible : "megachips,stdp2690-ge-b850v3-fw" + - reg : I2C bus address + - ports : One input port(reg = <0>) and one output port(reg = <1>) + +Example: + +&mux2_i2c2 { + status = "okay"; + clock-frequency = <100000>; + + stdp4028@73 { + compatible = "megachips,stdp4028-ge-b850v3-fw"; + #address-cells = <1>; + #size-cells = <0>; + + reg = <0x73>; + + interrupt-parent = <&gpio2>; + interrupts = <0 IRQ_TYPE_LEVEL_HIGH>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + stdp4028_in: endpoint { + remote-endpoint = <&lvds0_out>; + }; + }; + port@1 { + reg = <1>; + stdp4028_out: endpoint { + remote-endpoint = <&stdp2690_in>; + }; + }; + }; + }; + + stdp2690@72 { + compatible = "megachips,stdp2690-ge-b850v3-fw"; + #address-cells = <1>; + #size-cells = <0>; + + reg = <0x72>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + stdp2690_in: endpoint { + remote-endpoint = <&stdp4028_out>; + }; + }; + + port@1 { + reg = <1>; + stdp2690_out: endpoint { + /* Connector for external display */ + }; + }; + }; + }; +}; |