This series adds support for ARM's HDLCD display controller found in Juno and ARM TC2 Coretile. The HDLCD outputs an RGB stream that feeds into a single digital encoder (DVI or HDMI).
This series depends on Sudeep Holla's series that introduces support for SCPI[1] on Juno.
Only the Juno functionality has been tested as the TC2 Coretile require a working SiI9022 driver for VExpress that is not subject of this patchset.
This is my first driver for the DRM subsystem and as such probably contains misuses of the APIs that I will be glad to correct if pointed out.
Best regards, Liviu
[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2015-August/362219.htm...
Liviu Dudau (4): drm: arm: Add DT bindings documentation for HDLCD driver. drm: Add support for ARM's HDLCD controller. arm64: Juno: Add HDLCD support to the Juno boards. MAINTAINERS: Add Liviu Dudau as maintainer for ARM HDLCD driver.
.../devicetree/bindings/drm/arm/arm,hdlcd.txt | 74 ++++ MAINTAINERS | 6 + arch/arm64/boot/dts/arm/juno-base.dtsi | 70 ++- drivers/gpu/drm/Kconfig | 2 + drivers/gpu/drm/Makefile | 1 + drivers/gpu/drm/arm/Kconfig | 20 + drivers/gpu/drm/arm/Makefile | 2 + drivers/gpu/drm/arm/hdlcd_crtc.c | 265 +++++++++++ drivers/gpu/drm/arm/hdlcd_drv.c | 490 +++++++++++++++++++++ drivers/gpu/drm/arm/hdlcd_drv.h | 51 +++ drivers/gpu/drm/arm/hdlcd_regs.h | 87 ++++ 11 files changed, 1066 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/drm/arm/arm,hdlcd.txt create mode 100644 drivers/gpu/drm/arm/Kconfig create mode 100644 drivers/gpu/drm/arm/Makefile create mode 100644 drivers/gpu/drm/arm/hdlcd_crtc.c create mode 100644 drivers/gpu/drm/arm/hdlcd_drv.c create mode 100644 drivers/gpu/drm/arm/hdlcd_drv.h create mode 100644 drivers/gpu/drm/arm/hdlcd_regs.h