On Thu, Mar 02, 2017 at 04:39:56PM +0100, Neil Armstrong wrote: > The Amlogic GX SoCs implements a Synopsys DesignWare HDMI TX Controller > in combination with a very custom PHY. > > This patchset depends on Laurent Pinchart v4 patchset at [1] and my v2 > patchset at [2] to permit PHY control from outside the dw-hdmi driver. > > The Synopsys DesignWare HDMI TX Controller is integrated like : > ___________________________________ > | HDMI TOP |<= HPD > |___________________________________| > | | | > HDMI-TX-| Synopsys HDMI | HDMI PHY |=> TMDS > | Controller |________________| > |___________________________________|<=> DDC > > And uses the following paths for Pixels Encoding : > _____ _____ ____________________ > vd1---| |-| | | VENC /---------|----VDAC > vd2---| VIU |-| VPP |-|-----ENCI/-ENCI_DVI-|\ > osd1--| |-| | | \ | X--HDMI-TX > osd2--|_____|-|_____| | |\-ENCP--ENCP_DVI-|/ > | | | > | \--ENCL-----------|----LVDS > |____________________| > > The ENCI and ENCP encoders pre-formats the data for the ENCI-DVI and > ENCP-DVI encoders. Those DVI encoders will format the pixels for the > Synopsys DesignWare HDMI TX Controller. > > In order to support display modes, the ENCI and ENCP encoders needs very > specific parameters for *each* display modes, so usage of the CEA VIC > identifier is necessary. But the DVI timings are generated from the > drm_mode structure in a generic way. > > To simplify the first push, only the main CEA modes are supported up to > 1920x1080p60. Supporting the 480i and 576i needs tweaking in the dw-hdmi > in order to support the Clock Doubling necessary for these modes. > > Support for more traditional modes like the EDID fallback modes is planned > but will need tome additionnal handling along the CEA modes. > Support for 4k2k modes needs to be able to get the EDID HDMI modes, but > for now only the HDMI 1.4 modes are currently available in the drm_edid > implementation. Btw, with the neat ascii-art stuff here and in comments in your code, did you look into assembling all that into a meson driver documentation chapter like the one for vc4 that was just merged? -Daniel > > This patchset does : > - Fixes the CRTC handling > - Fixes the registers definitions > - Adds support for device components registration along of-graph > - Adds support for HDMI clocks > - Adds support for HDMI VENC video modes > - Adds support for the Custom HDMI PHY using callbacks added in [1] and [2] > - Adds CMA node to reserve enougth memory for 1080p display > - Adds the HDMI controller et connector modes on selected boards > - Adds a proper dt-bindings for the HDMI controller et connector > - Updates the MAINTAINERS file to track the new files > > [1] http://lkml.kernel.org/r/20170301223915.29888-1-laurent.pinchart+renesas@xxxxxxxxxxxxxxxx > [2] http://lkml.kernel.org/r/1488468572-31971-1-git-send-email-narmstrong@xxxxxxxxxxxx > > Neil Armstrong (11): > drm/meson: Use crtc_state for hdisplay and fix atomic flush/enable > sync for vsync commit > drm/meson: Add missing HDMI register > drm/meson: Add support for components > drm/meson: venc_cvbs: no more return -ENODEV if CVBS is not available > drm/meson: add support for HDMI clock support > drm/meson: Add support for HDMI venc modes and settings > drm/meson: Add support for HDMI encoder and DW-HDMI bridge + PHY > ARM64: dts: meson-gx: Add shared CMA dma memory pool > ARM64: dts: meson-gx: Add support for HDMI output > dt-bindings: Add bindings for the Amlogic Meson dw-hdmi extension > MAINTAINERS: update files for Amlogic DRM Driver > > .../bindings/display/amlogic,meson-dw-hdmi.txt | 111 ++ > MAINTAINERS | 1 + > .../arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi | 39 + > arch/arm64/boot/dts/amlogic/meson-gx.dtsi | 40 + > .../boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts | 23 + > arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi | 23 + > arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 12 + > .../boot/dts/amlogic/meson-gxl-nexbox-a95x.dts | 23 + > arch/arm64/boot/dts/amlogic/meson-gxl.dtsi | 13 + > .../arm64/boot/dts/amlogic/meson-gxm-nexbox-a1.dts | 23 + > arch/arm64/boot/dts/amlogic/meson-gxm.dtsi | 4 + > drivers/gpu/drm/meson/Kconfig | 6 + > drivers/gpu/drm/meson/Makefile | 1 + > drivers/gpu/drm/meson/meson_crtc.c | 15 +- > drivers/gpu/drm/meson/meson_drv.c | 113 +- > drivers/gpu/drm/meson/meson_drv.h | 3 + > drivers/gpu/drm/meson/meson_dw_hdmi.c | 918 +++++++++++++++ > drivers/gpu/drm/meson/meson_dw_hdmi.h | 146 +++ > drivers/gpu/drm/meson/meson_registers.h | 1 + > drivers/gpu/drm/meson/meson_vclk.c | 624 +++++++++- > drivers/gpu/drm/meson/meson_vclk.h | 6 +- > drivers/gpu/drm/meson/meson_venc.c | 1245 +++++++++++++++++++- > drivers/gpu/drm/meson/meson_venc.h | 7 + > drivers/gpu/drm/meson/meson_venc_cvbs.c | 11 +- > drivers/gpu/drm/meson/meson_vpp.h | 2 + > 25 files changed, 3370 insertions(+), 40 deletions(-) > create mode 100644 Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.txt > create mode 100644 drivers/gpu/drm/meson/meson_dw_hdmi.c > create mode 100644 drivers/gpu/drm/meson/meson_dw_hdmi.h > > -- > 1.9.1 > > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/dri-devel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
