[PATCH v1 00/19] Add DRM for stih4xx platforms

Rob Clark robdclark at gmail.com
Tue Apr 8 05:27:56 PDT 2014


On Tue, Apr 8, 2014 at 8:19 AM, Benjamin Gaignard
<benjamin.gaignard at linaro.org> wrote:
> This series of patches add the support of DRM/KMS drivers for STMicroelectronics
> chipsets stih416 and stih407.

*finally* \o/

one small request.. got a git branch somewhere?  This patchset is big
enough that it would be convenient for reviewing to be able to
git-fetch..

BR,
-R

> Hardware is split in two main blocks: Compositor and TVout. Each of them
> includes specific hardware IPs and the display timing are controlled by a specific
> Video Timing Generator hardware IP (VTG).
>
> Compositor is made of the follow hardware IPs:
>  - GDP (Generic Display Pipeline) which is an entry point for graphic (RGB)
>    buffers
>  - VDP (Video Diplay Pipeline) which is an entry point for video (YUV) buffers
>  - HQVDP (High Quality Video Display Processor) that supports scaling,
>    deinterlacing and some miscellaneous image quality improvements.
>    It fetches the Video decoded buffers from memory, processes them and pushes
>    them to the Compositor through a HW dedicated bus.
>  - Mixer is responsible of mixing all the entries depending of their
>    respective z-order and layout
>
> TVout is divided in 3 parts:
>  - HDMI to generate HDMI signals, depending of chipset version HDMI phy can
>    change.
>  - HDA to generate signals for HD analog TV
>  - VIP to control/switch data path coming from Compositor
>
> On stih416 compositor and Tvout are on different dies so a Video Trafic Advance
> inter-die Communication mechanism (VTAC) is needed.
>
> +---------------------------------------------+   +----------------------------------------+
> | +-------------------------------+   +----+  |   |  +----+   +--------------------------+ |
> | |                               |   |    |  |   |  |    |   |  +---------+     +----+  | |
> | | +----+              +------+  |   |    |  |   |  |    |   |  | VIP     |---->|HDMI|  | |
> | | |GPD +------------->|      |  |   |    |  |   |  |    |   |  |         |     +----+  | |
> | | +----+              |Mixer |--|-->|    |  |   |  |    |---|->| switcher|             | |
> | |                     |      |  |   |    |  |   |  |    |   |  |         |     +----+  | |
> | |                     |      |  |   |    |  |   |  |    |   |  |         |---->|HDA |  | |
> | |                     +------+  |   |VTAC|========>|VTAC|   |  +---------+     +----+  | |
> | |                               |   |    |  |   |  |    |   |                          | |
> | |         Compositor            |   |    |  |   |  |    |   |           TVout          | |
> | +-------------------------------+   |    |  |   |  |    |   +--------------------------+ |
> |                      ^              |    |  |   |  |    |             ^                  |
> |                      |              |    |  |   |  |    |             |                  |
> |               +--------------+      |    |  |   |  |    |      +-------------+           |
> |               | VTG (master) |----->|    |  |   |  |    |----->| VTG (slave) |           |
> |               +--------------+      +----+  |   |  +----+      +-------------+           |
> |Digital die                                  |   |                              Analog Die|
> +---------------------------------------------+   +----------------------------------------+
>
> On stih407 Compositor and Tvout are on the same die
>
> +-----------------------------------------------------------------+
> | +-------------------------------+  +--------------------------+ |
> | |                               |  |  +---------+     +----+  | |
> | | +----+              +------+  |  |  | VIP     |---->|HDMI|  | |
> | | |GPD +------------->|      |  |  |  |         |     +----+  | |
> | | +----+              |Mixer |--|--|->| switcher|             | |
> | | +----+   +-----+    |      |  |  |  |         |     +----+  | |
> | | |VDP +-->+HQVDP+--->|      |  |  |  |         |---->|HDA |  | |
> | | +----+   +-----+    +------+  |  |  +---------+     +----+  | |
> | |                               |  |                          | |
> | |         Compositor            |  |           TVout          | |
> | +-------------------------------+  +--------------------------+ |
> |                              ^        ^                         |
> |                              |        |                         |
> |                           +--------------+                      |
> |                           |     VTG      |                      |
> |                           +--------------+                      |
> |Digital die                                                      |
> +-----------------------------------------------------------------+
>
> In addition of the drivers for the IPs listed before a thin I2C driver (hdmiddc) is used
> by HDMI driver to retrieve EDID for monitor.
>
> To unify interfaces of GDP and VDP we create a "layer" interface called by
> compositor to control both GPD and VDP.
>
> Hardware have memory contraints (alignment, contiguous) so we use CMA drm helpers functions
> to allocate frame buffer.
>
> File naming convention is:
>  - sti_* for IPs drivers
>  - sti_drm_* for drm functions implementation.
>
> Benjamin Gaignard (18):
>   drm: sti: add bindings for DRM driver
>   drm: sti: add VTG driver
>   drm: sti: add VTAC drivers
>   drm: sti: add HDMI driver
>   drm: sti: add I2C client driver for HDMI
>   drm: sti: add HDA driver
>   drm: sti: add TVOut driver
>   drm: sti: add sti layer interface definition
>   drm: sti: add GDP layer
>   drm: sti: add VID layer
>   drm: sti: add Mixer
>   drm: sti: add Compositor
>   drm: sti: add debug to GDP
>   drm: sti: add debug to VID
>   drm: sti: add debug to TVout
>   drm: sti: add debug to mixer
>   drm: sti: Add DRM driver itself
>   drm: sti: add HQVDP driver
>
> Vincent Abriou (1):
>   drm: sti: rename mixer registers to be main/aux independent
>
>  .../devicetree/bindings/gpu/st,stih4xx.txt         |  177 ++++
>  drivers/gpu/drm/Kconfig                            |    2 +
>  drivers/gpu/drm/Makefile                           |    1 +
>  drivers/gpu/drm/sti/Kconfig                        |   26 +
>  drivers/gpu/drm/sti/Makefile                       |   23 +
>  drivers/gpu/drm/sti/sti_compositor.c               |  189 ++++
>  drivers/gpu/drm/sti/sti_compositor.h               |   84 ++
>  drivers/gpu/drm/sti/sti_ddc.c                      |   56 +
>  drivers/gpu/drm/sti/sti_drm_connector.c            |  195 ++++
>  drivers/gpu/drm/sti/sti_drm_connector.h            |   16 +
>  drivers/gpu/drm/sti/sti_drm_crtc.c                 |  440 ++++++++
>  drivers/gpu/drm/sti/sti_drm_crtc.h                 |   21 +
>  drivers/gpu/drm/sti/sti_drm_drv.c                  |  484 +++++++++
>  drivers/gpu/drm/sti/sti_drm_drv.h                  |   48 +
>  drivers/gpu/drm/sti/sti_drm_encoder.c              |  201 ++++
>  drivers/gpu/drm/sti/sti_drm_encoder.h              |   16 +
>  drivers/gpu/drm/sti/sti_drm_plane.c                |  195 ++++
>  drivers/gpu/drm/sti/sti_drm_plane.h                |   16 +
>  drivers/gpu/drm/sti/sti_gdp.c                      |  726 +++++++++++++
>  drivers/gpu/drm/sti/sti_gdp.h                      |   75 ++
>  drivers/gpu/drm/sti/sti_hda.c                      |  826 +++++++++++++++
>  drivers/gpu/drm/sti/sti_hda.h                      |   14 +
>  drivers/gpu/drm/sti/sti_hdmi.c                     | 1045 +++++++++++++++++++
>  drivers/gpu/drm/sti/sti_hdmi.h                     |  198 ++++
>  drivers/gpu/drm/sti/sti_hdmi_tx3g0c55phy.c         |  398 +++++++
>  drivers/gpu/drm/sti/sti_hdmi_tx3g4c28phy.c         |  224 ++++
>  drivers/gpu/drm/sti/sti_hqvdp.c                    | 1089 ++++++++++++++++++++
>  drivers/gpu/drm/sti/sti_hqvdp.h                    |   55 +
>  drivers/gpu/drm/sti/sti_hqvdp_lut.h                |  373 +++++++
>  drivers/gpu/drm/sti/sti_layer.c                    |  324 ++++++
>  drivers/gpu/drm/sti/sti_layer.h                    |  116 +++
>  drivers/gpu/drm/sti/sti_mixer.c                    |  405 ++++++++
>  drivers/gpu/drm/sti/sti_mixer.h                    |   54 +
>  drivers/gpu/drm/sti/sti_tvout.c                    |  863 ++++++++++++++++
>  drivers/gpu/drm/sti/sti_tvout.h                    |  105 ++
>  drivers/gpu/drm/sti/sti_vid.c                      |  259 +++++
>  drivers/gpu/drm/sti/sti_vid.h                      |   34 +
>  drivers/gpu/drm/sti/sti_vtac_rx.c                  |  140 +++
>  drivers/gpu/drm/sti/sti_vtac_tx.c                  |  152 +++
>  drivers/gpu/drm/sti/sti_vtac_utils.h               |   52 +
>  drivers/gpu/drm/sti/sti_vtg.c                      |  438 ++++++++
>  drivers/gpu/drm/sti/sti_vtg.h                      |   20 +
>  drivers/gpu/drm/sti/sti_vtg_utils.c                |   99 ++
>  drivers/gpu/drm/sti/sti_vtg_utils.h                |   29 +
>  44 files changed, 10303 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/gpu/st,stih4xx.txt
>  create mode 100644 drivers/gpu/drm/sti/Kconfig
>  create mode 100644 drivers/gpu/drm/sti/Makefile
>  create mode 100644 drivers/gpu/drm/sti/sti_compositor.c
>  create mode 100644 drivers/gpu/drm/sti/sti_compositor.h
>  create mode 100644 drivers/gpu/drm/sti/sti_ddc.c
>  create mode 100644 drivers/gpu/drm/sti/sti_drm_connector.c
>  create mode 100644 drivers/gpu/drm/sti/sti_drm_connector.h
>  create mode 100644 drivers/gpu/drm/sti/sti_drm_crtc.c
>  create mode 100644 drivers/gpu/drm/sti/sti_drm_crtc.h
>  create mode 100644 drivers/gpu/drm/sti/sti_drm_drv.c
>  create mode 100644 drivers/gpu/drm/sti/sti_drm_drv.h
>  create mode 100644 drivers/gpu/drm/sti/sti_drm_encoder.c
>  create mode 100644 drivers/gpu/drm/sti/sti_drm_encoder.h
>  create mode 100644 drivers/gpu/drm/sti/sti_drm_plane.c
>  create mode 100644 drivers/gpu/drm/sti/sti_drm_plane.h
>  create mode 100644 drivers/gpu/drm/sti/sti_gdp.c
>  create mode 100644 drivers/gpu/drm/sti/sti_gdp.h
>  create mode 100644 drivers/gpu/drm/sti/sti_hda.c
>  create mode 100644 drivers/gpu/drm/sti/sti_hda.h
>  create mode 100644 drivers/gpu/drm/sti/sti_hdmi.c
>  create mode 100644 drivers/gpu/drm/sti/sti_hdmi.h
>  create mode 100644 drivers/gpu/drm/sti/sti_hdmi_tx3g0c55phy.c
>  create mode 100644 drivers/gpu/drm/sti/sti_hdmi_tx3g4c28phy.c
>  create mode 100644 drivers/gpu/drm/sti/sti_hqvdp.c
>  create mode 100644 drivers/gpu/drm/sti/sti_hqvdp.h
>  create mode 100644 drivers/gpu/drm/sti/sti_hqvdp_lut.h
>  create mode 100644 drivers/gpu/drm/sti/sti_layer.c
>  create mode 100644 drivers/gpu/drm/sti/sti_layer.h
>  create mode 100644 drivers/gpu/drm/sti/sti_mixer.c
>  create mode 100644 drivers/gpu/drm/sti/sti_mixer.h
>  create mode 100644 drivers/gpu/drm/sti/sti_tvout.c
>  create mode 100644 drivers/gpu/drm/sti/sti_tvout.h
>  create mode 100644 drivers/gpu/drm/sti/sti_vid.c
>  create mode 100644 drivers/gpu/drm/sti/sti_vid.h
>  create mode 100644 drivers/gpu/drm/sti/sti_vtac_rx.c
>  create mode 100644 drivers/gpu/drm/sti/sti_vtac_tx.c
>  create mode 100644 drivers/gpu/drm/sti/sti_vtac_utils.h
>  create mode 100644 drivers/gpu/drm/sti/sti_vtg.c
>  create mode 100644 drivers/gpu/drm/sti/sti_vtg.h
>  create mode 100644 drivers/gpu/drm/sti/sti_vtg_utils.c
>  create mode 100644 drivers/gpu/drm/sti/sti_vtg_utils.h
>
> --
> 1.9.0
>
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