MT8173 DRM include one master drm device and three sub device: dsi device, crtc main device, and ddp device.
Master drm device control the drm sub device and memory management. dsi device is a drm connector/encoder device which control MIPI/DSI hw block. crtc main is a drm crtc device which control hw components in the display data path. ddp is a device which control display data path.
Display data path of crtc main is: [OVL0] -> [COLOR0] -> [AAL] -> [OD] -> [UFOE] -> [RDMA0]
This patch depends on the other patches: 1. MT8173 IOMMU support http://lists.infradead.org/pipermail/linux-mediatek/2015-March/000058.html 2. add IOMMU dma_ops cherry picked from git://linux-arm.org/linux-rm iommu/dma commit d76a1911b02185bdc5f8b5525f9228cf266725c5
CK Hu (2): dt-bindings: drm/mediatek: Add Mediatek DRM dts binding drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.
.../bindings/drm/mediatek/mediatek,crtc-main.txt | 38 + .../bindings/drm/mediatek/mediatek,ddp.txt | 22 + .../bindings/drm/mediatek/mediatek,drm.txt | 27 + .../bindings/drm/mediatek/mediatek,dsi.txt | 20 + drivers/gpu/drm/Kconfig | 2 + drivers/gpu/drm/Makefile | 1 + drivers/gpu/drm/mediatek/Kconfig | 28 + drivers/gpu/drm/mediatek/Makefile | 13 + drivers/gpu/drm/mediatek/mediatek_drm_crtc.c | 246 ++++ drivers/gpu/drm/mediatek/mediatek_drm_crtc.h | 80 ++ drivers/gpu/drm/mediatek/mediatek_drm_crtc_main.c | 420 ++++++ drivers/gpu/drm/mediatek/mediatek_drm_ddp.c | 202 +++ drivers/gpu/drm/mediatek/mediatek_drm_ddp.h | 23 + drivers/gpu/drm/mediatek/mediatek_drm_ddp_comp.c | 346 +++++ drivers/gpu/drm/mediatek/mediatek_drm_ddp_comp.h | 33 + drivers/gpu/drm/mediatek/mediatek_drm_drv.c | 369 ++++++ drivers/gpu/drm/mediatek/mediatek_drm_drv.h | 37 + drivers/gpu/drm/mediatek/mediatek_drm_dsi.c | 1333 ++++++++++++++++++++ drivers/gpu/drm/mediatek/mediatek_drm_dsi.h | 71 ++ drivers/gpu/drm/mediatek/mediatek_drm_fb.c | 339 +++++ drivers/gpu/drm/mediatek/mediatek_drm_fb.h | 43 + drivers/gpu/drm/mediatek/mediatek_drm_gem.c | 315 +++++ drivers/gpu/drm/mediatek/mediatek_drm_gem.h | 94 ++ include/uapi/drm/mediatek_drm.h | 59 + 24 files changed, 4161 insertions(+) create mode 100644 Documentation/devicetree/bindings/drm/mediatek/mediatek,crtc-main.txt create mode 100644 Documentation/devicetree/bindings/drm/mediatek/mediatek,ddp.txt create mode 100644 Documentation/devicetree/bindings/drm/mediatek/mediatek,drm.txt create mode 100644 Documentation/devicetree/bindings/drm/mediatek/mediatek,dsi.txt create mode 100644 drivers/gpu/drm/mediatek/Kconfig create mode 100644 drivers/gpu/drm/mediatek/Makefile create mode 100644 drivers/gpu/drm/mediatek/mediatek_drm_crtc.c create mode 100644 drivers/gpu/drm/mediatek/mediatek_drm_crtc.h create mode 100644 drivers/gpu/drm/mediatek/mediatek_drm_crtc_main.c create mode 100644 drivers/gpu/drm/mediatek/mediatek_drm_ddp.c create mode 100644 drivers/gpu/drm/mediatek/mediatek_drm_ddp.h create mode 100644 drivers/gpu/drm/mediatek/mediatek_drm_ddp_comp.c create mode 100644 drivers/gpu/drm/mediatek/mediatek_drm_ddp_comp.h create mode 100644 drivers/gpu/drm/mediatek/mediatek_drm_drv.c create mode 100644 drivers/gpu/drm/mediatek/mediatek_drm_drv.h create mode 100644 drivers/gpu/drm/mediatek/mediatek_drm_dsi.c create mode 100644 drivers/gpu/drm/mediatek/mediatek_drm_dsi.h create mode 100644 drivers/gpu/drm/mediatek/mediatek_drm_fb.c create mode 100644 drivers/gpu/drm/mediatek/mediatek_drm_fb.h create mode 100644 drivers/gpu/drm/mediatek/mediatek_drm_gem.c create mode 100644 drivers/gpu/drm/mediatek/mediatek_drm_gem.h create mode 100644 include/uapi/drm/mediatek_drm.h