Hi Jean-Jacques,
Am Freitag, den 18.04.2014, 11:45 +0200 schrieb Jean-Jacques Hiblot:
Hi,
this patch serie implements a simple DRM driver for the ATMEL High end LCD controller found in the SAMA5 familly. It's based on the tilcdc driver. It uses the cma_helper for memory and fbdev stuff. Your comments are welcome !
I applied your and Robert's patches on a 3.15-rc2 kernel and tried the framebuffer device on the sama5d31-ek. Seems to work.
Supported features:
- the base layer (the main framebuffer)
Tested to show a little tux png, but it's appearing only after 'echo 0 > /sys/devices/ahb.1/apb.2/f0030000.hlcdc/graphics/fb0/rotate' is there missing some initializing?
- a simple panel
- a backlight driver
Tested to set brightness to 0, 20 and 255. Works.
Thanks for your work.
Best Regards Tim
- structure to 'easily' add other connectors (it comes from the tilcdc)
On the todo list:
- support overlays as drm_planes
- support for the hardware cursor
- support for the SiI9022 HDMI connector (present on sama5d36ek)
Jean-Jacques Hiblot (3): atmel: drm: added drm driver for the atmel hlcd controller atmel: drm: dt: Added DT entry for the atmel hlcdc found in the sama5 atmel: dt: Add supports for the lcdc support on the sama5d36ek
arch/arm/boot/dts/sama5d36ek.dts | 27 +- arch/arm/boot/dts/sama5d3_lcd.dtsi | 11 + drivers/gpu/drm/Kconfig | 2 + drivers/gpu/drm/Makefile | 1 + drivers/gpu/drm/atmel_hlcdc/Kconfig | 13 + drivers/gpu/drm/atmel_hlcdc/Makefile | 12 + drivers/gpu/drm/atmel_hlcdc/atmel_hlcdc.h | 771 +++++++++++++++++++++ .../gpu/drm/atmel_hlcdc/atmel_hlcdc_backlight.c | 92 +++ .../gpu/drm/atmel_hlcdc/atmel_hlcdc_backlight.h | 25 + drivers/gpu/drm/atmel_hlcdc/atmel_hlcdc_crtc.c | 702 +++++++++++++++++++ drivers/gpu/drm/atmel_hlcdc/atmel_hlcdc_drv.c | 586 ++++++++++++++++ drivers/gpu/drm/atmel_hlcdc/atmel_hlcdc_drv.h | 124 ++++ drivers/gpu/drm/atmel_hlcdc/atmel_hlcdc_ovl.h | 190 +++++ drivers/gpu/drm/atmel_hlcdc/atmel_hlcdc_panel.c | 459 ++++++++++++ drivers/gpu/drm/atmel_hlcdc/atmel_hlcdc_panel.h | 28 + 15 files changed, 3042 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/drm/atmel_hlcdc/Kconfig create mode 100644 drivers/gpu/drm/atmel_hlcdc/Makefile create mode 100644 drivers/gpu/drm/atmel_hlcdc/atmel_hlcdc.h create mode 100644 drivers/gpu/drm/atmel_hlcdc/atmel_hlcdc_backlight.c create mode 100644 drivers/gpu/drm/atmel_hlcdc/atmel_hlcdc_backlight.h create mode 100644 drivers/gpu/drm/atmel_hlcdc/atmel_hlcdc_crtc.c create mode 100644 drivers/gpu/drm/atmel_hlcdc/atmel_hlcdc_drv.c create mode 100644 drivers/gpu/drm/atmel_hlcdc/atmel_hlcdc_drv.h create mode 100644 drivers/gpu/drm/atmel_hlcdc/atmel_hlcdc_ovl.h create mode 100644 drivers/gpu/drm/atmel_hlcdc/atmel_hlcdc_panel.c create mode 100644 drivers/gpu/drm/atmel_hlcdc/atmel_hlcdc_panel.h
-- 1.9.1
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