在 2026-02-05星期四的 10:30 +0100，Thomas Zimmermann写道： > Hi, > > patches 1 to 5 have been merged into drm-misc-next. In patch 3, I > replaced COMPILER_TEST with COMPILE_TEST in the Kconfig file.
Ah, Thanks for correcting this. Thanks, Icenowy > > Best regards > Thomas > > Am 29.01.26 um 03:39 schrieb Icenowy Zheng: > > This patchset tries to add a driver for Verisilicon DC8200 driver, > > and > > demonstrates the driver on T-Head TH1520 with its HDMI output. > > > > This display controller IP is used on StarFive JH7110 too, but as > > the > > HDMI controller used there isn't as common as the DesignWare one, I > > choose to use TH1520 in this patchset. > > > > The DC driver is written with other DC-series (mainly DC8000, which > > is > > known to be used on Eswin EIC7700 SoC) display controllers in mind, > > and > > uses the identification registers available on all Vivante branded > > IPs. > > A known exception is DCNano display controller, which is unlikely > > to be > > supported by this driver because of totally different register map > > and > > no known identification registers. (P.S. the in-tree loongson DRM > > driver > > seems to be for some DCNano instances based on the register map.) > > > > The HDMI controller seems to come with some common PHY by Synopsys, > > the > > DesignWare HDMI TX 2.0 PHY. By searching a few register names from > > the > > BSP driver of that PHY, that PHY seems to be used by a in-tree dw- > > hdmi > > glue, rcar_dw_hdmi -- an updated downstream version of rcar_dw_hdmi > > contains all 6 registers set here in the th1520-dw-hdmi driver. > > Some > > more suprising thing is that RK3288 uses the same PHY too, but the > > in-tree dw_hdmi-rockchip driver writes the configuration data array > > in a > > weird way to reuse the HDMI 3D TX PHY configuring function. It > > might be > > valuable to add common configuring function and configuration data > > definition for this HDMI 2.0 PHY too, but the current driver in > > this > > patchset simply duplicated most configuration logic from > > rcar_dw_hdmi > > driver (but with 3 extra configuration registers configured, which > > is > > done by their downstream kernel). > > > > This revision contains only little code change -- only a Kconfig > > select > > is added. The other purpose is to collect Thomas Zimmermann's tags > > and > > squash MAINTAINERS change to real driver per his suggestion. > > > > Icenowy Zheng (8): > > dt-bindings: vendor-prefixes: add verisilicon > > dt-bindings: display: add verisilicon,dc > > drm: verisilicon: add a driver for Verisilicon display > > controllers > > dt-bindings: display/bridge: add binding for TH1520 HDMI > > controller > > drm/bridge: add a driver for T-Head TH1520 HDMI controller > > riscv: dts: thead: add DPU and HDMI device tree nodes > > riscv: dts: thead: lichee-pi-4a: enable HDMI > > mailmap: map all Icenowy Zheng's mail addresses > > > > .mailmap | 4 + > > .../display/bridge/thead,th1520-dw-hdmi.yaml | 120 ++++++ > > .../bindings/display/verisilicon,dc.yaml | 122 ++++++ > > .../devicetree/bindings/vendor-prefixes.yaml | 2 + > > MAINTAINERS | 8 + > > .../boot/dts/thead/th1520-lichee-pi-4a.dts | 25 ++ > > arch/riscv/boot/dts/thead/th1520.dtsi | 66 ++++ > > drivers/gpu/drm/Kconfig | 2 + > > drivers/gpu/drm/Makefile | 1 + > > drivers/gpu/drm/bridge/Kconfig | 10 + > > drivers/gpu/drm/bridge/Makefile | 1 + > > drivers/gpu/drm/bridge/th1520-dw-hdmi.c | 173 ++++++++ > > drivers/gpu/drm/verisilicon/Kconfig | 16 + > > drivers/gpu/drm/verisilicon/Makefile | 5 + > > drivers/gpu/drm/verisilicon/vs_bridge.c | 371 > > ++++++++++++++++++ > > drivers/gpu/drm/verisilicon/vs_bridge.h | 39 ++ > > drivers/gpu/drm/verisilicon/vs_bridge_regs.h | 54 +++ > > drivers/gpu/drm/verisilicon/vs_crtc.c | 191 +++++++++ > > drivers/gpu/drm/verisilicon/vs_crtc.h | 31 ++ > > drivers/gpu/drm/verisilicon/vs_crtc_regs.h | 60 +++ > > drivers/gpu/drm/verisilicon/vs_dc.c | 207 ++++++++++ > > drivers/gpu/drm/verisilicon/vs_dc.h | 38 ++ > > drivers/gpu/drm/verisilicon/vs_dc_top_regs.h | 27 ++ > > drivers/gpu/drm/verisilicon/vs_drm.c | 182 +++++++++ > > drivers/gpu/drm/verisilicon/vs_drm.h | 28 ++ > > drivers/gpu/drm/verisilicon/vs_hwdb.c | 150 +++++++ > > drivers/gpu/drm/verisilicon/vs_hwdb.h | 29 ++ > > drivers/gpu/drm/verisilicon/vs_plane.c | 124 ++++++ > > drivers/gpu/drm/verisilicon/vs_plane.h | 72 ++++ > > .../gpu/drm/verisilicon/vs_primary_plane.c | 173 ++++++++ > > .../drm/verisilicon/vs_primary_plane_regs.h | 53 +++ > > 31 files changed, 2384 insertions(+) > > create mode 100644 > > Documentation/devicetree/bindings/display/bridge/thead,th1520-dw- > > hdmi.yaml > > create mode 100644 > > Documentation/devicetree/bindings/display/verisilicon,dc.yaml > > create mode 100644 drivers/gpu/drm/bridge/th1520-dw-hdmi.c > > create mode 100644 drivers/gpu/drm/verisilicon/Kconfig > > create mode 100644 drivers/gpu/drm/verisilicon/Makefile > > create mode 100644 drivers/gpu/drm/verisilicon/vs_bridge.c > > create mode 100644 drivers/gpu/drm/verisilicon/vs_bridge.h > > create mode 100644 drivers/gpu/drm/verisilicon/vs_bridge_regs.h > > create mode 100644 drivers/gpu/drm/verisilicon/vs_crtc.c > > create mode 100644 drivers/gpu/drm/verisilicon/vs_crtc.h > > create mode 100644 drivers/gpu/drm/verisilicon/vs_crtc_regs.h > > create mode 100644 drivers/gpu/drm/verisilicon/vs_dc.c > > create mode 100644 drivers/gpu/drm/verisilicon/vs_dc.h > > create mode 100644 drivers/gpu/drm/verisilicon/vs_dc_top_regs.h > > create mode 100644 drivers/gpu/drm/verisilicon/vs_drm.c > > create mode 100644 drivers/gpu/drm/verisilicon/vs_drm.h > > create mode 100644 drivers/gpu/drm/verisilicon/vs_hwdb.c > > create mode 100644 drivers/gpu/drm/verisilicon/vs_hwdb.h > > create mode 100644 drivers/gpu/drm/verisilicon/vs_plane.c > > create mode 100644 drivers/gpu/drm/verisilicon/vs_plane.h > > create mode 100644 drivers/gpu/drm/verisilicon/vs_primary_plane.c > > create mode 100644 > > drivers/gpu/drm/verisilicon/vs_primary_plane_regs.h > > >
