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SubjectRe: [RFC 0/3] DRM driver for the ATMEL High end LCD controller
Hi Tim,

I'll look a this issue soon. It looks like the scanout is not started in
your test case.
Thanks for reporting this.

JJ

On 04/24/2014 02:46 PM, Tim Niemeyer wrote:
>
> Hi Boris
>
> Am Donnerstag, den 24.04.2014, 14:14 +0200 schrieb Boris BREZILLON:
>> Hi Tim,
>>
>> On 23/04/2014 17:36, Tim Niemeyer wrote:
>>> 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?
>>
>> Could you try to apply this http://code.bulix.org/f01kvh-86117 ?
> I can't see any difference with that.
>
> I used fbv to display the tux. With CONFIG_FRAMEBUFFER_CONSOLE=n the
> display stays with a small atmel logo and u-Boot version information. If
> i set CONFIG_FRAMEBUFFER_CONSOLE=y, the display is black after kernel
> start and fbv just works as expected.
>
> Best Regards,
> Tim
>
>> Best Regards,
>>
>> Boris
>>
>>>
>>>> * 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
>>>>
>>>>
>>>> _______________________________________________
>>>> linux-arm-kernel mailing list
>>>> linux-arm-kernel@lists.infradead.org
>>>> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>>>
>>
>
>


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