This patch series adds DRM support for the Amlogic S4-series SoCs. Compared to the Amlogic G12-series, the S4-series introduces the following changes: 1 The S4-series splits the HIU into three separate components: `sys_ctrl`, `pwr_ctrl`, and `clk_ctrl`. As a result, VENC and VCLK drivers are updated with S4-specific compatible strings to accommodate these changes. 2 The S4-series secures access to HDMITX DWC and TOP registers, requiring modifications to the driver to handle this new access method. 3 The register addresses for the video1 and video2 planes have been updated in the S4 hardware, and the DRM driver has been adapted accordingly. 4 The OSD, VIU, and VPP components remain unchanged and are consistent with the G12-series. Signed-off-by: Ao Xu <ao.xu@xxxxxxxxxxx> --- Ao Xu (11): dt-bindings: display: meson-dw-hdmi: Add compatible for S4 HDMI controller dt-bindings: display: meson-vpu: Add compatible for S4 display controller drm: meson: add S4 compatible for DRM driver drm: meson: add primary and overlay plane support for S4 drm: meson: update VIU and VPP support for S4 drm: meson: add meson_dw_hdmi support for S4 drm: meson: change api call parameter drm: meson: add hdmitx vmode timing support for S4 drm: meson: add vpu clk setting for S4 drm: meson: add CVBS support for S4 arm64: dts: amlogic: s4: add DRM support [1/1] .../bindings/display/amlogic,meson-dw-hdmi.yaml | 1 + .../bindings/display/amlogic,meson-vpu.yaml | 48 +- .../boot/dts/amlogic/meson-s4-s805x2-aq222.dts | 39 + arch/arm64/boot/dts/amlogic/meson-s4.dtsi | 121 +++ drivers/gpu/drm/meson/meson_crtc.c | 90 +- drivers/gpu/drm/meson/meson_drv.c | 127 ++- drivers/gpu/drm/meson/meson_drv.h | 6 + drivers/gpu/drm/meson/meson_dw_hdmi.c | 244 ++++- drivers/gpu/drm/meson/meson_dw_hdmi.h | 126 +++ drivers/gpu/drm/meson/meson_encoder_cvbs.c | 10 + drivers/gpu/drm/meson/meson_encoder_hdmi.c | 19 +- drivers/gpu/drm/meson/meson_overlay.c | 7 +- drivers/gpu/drm/meson/meson_plane.c | 24 +- drivers/gpu/drm/meson/meson_registers.h | 17 + drivers/gpu/drm/meson/meson_vclk.c | 1018 ++++++++++++++------ drivers/gpu/drm/meson/meson_venc.c | 346 ++++++- drivers/gpu/drm/meson/meson_venc.h | 4 +- drivers/gpu/drm/meson/meson_viu.c | 9 +- drivers/gpu/drm/meson/meson_vpp.c | 12 +- 19 files changed, 1865 insertions(+), 403 deletions(-) --- base-commit: 6ecd20965bdc21b265a0671ccf36d9ad8043f5ab change-id: 20250110-drm-s4-c96c88be52e4 Best regards, -- Ao Xu <ao.xu@xxxxxxxxxxx>