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SubjectRe: [RFC 0/3] DRM driver for the ATMEL High end LCD controller
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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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> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel




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