LCDC failure of the stable v3.12 kernel for armadillo800-eva
Hi Laurent-san,
I have tested the stable v3.12 kernel for armadillo800-eva board. And it had a error relates LCDC.
error detail:
-----------------
can not display a bitmap image on LCD screen.
when boot the board,boot log is can not display on LCD screen too.
Cause:
---------
kernel that had above error:up tream v3.12-rc1....stable v2.12.0 Error is generated in the following patch.
[d58226a ARM: shmobile: armadillo800eva: Add backlight support]
Please consider this error if you have time.
Best regards,
Nguyen Viet Dung
Hi Nguyen-san,
(I apologize in advance if this is the wrong way to address you, please let me know if I should have written Dung-san instead).
Quoted 10 lines · On Wednesday 13 November 2013 15:16:05 Nguyen Viet Dung wrote:
Hi Laurent-san,
I have tested the stable v3.12 kernel for armadillo800-eva board. And it had a error relates LCDC.
error detail:
-----------------
can not display a bitmap image on LCD screen.
when boot the board,boot log is can not display on LCD screen too.
Quoted 5 lines
Cause:
---------
kernel that had above error:up tream v3.12-rc1....stable v2.12.0 Error is generated in the following patch.
[d58226a ARM: shmobile: armadillo800eva: Add backlight support]
I will try to fix that. The LCDC hardware is supported by two drivers, an FBDEV driver (drivers/video/sh_mobile_lcdcfb.c) and a DRM driver (drivers/gpu/drm/shmobile). Could you please tell which driver you're using ?
Quoted 1 line
Please consider this error if you have time.
Signature · 3 lines
Regards, Laurent Pinchart
Hi Laurent-san,
Quoted 4 lines · Laurent Pinchart
Hi Nguyen-san,
(I apologize in advance if this is the wrong way to address you, please let me know if I should have written Dung-san instead).
Please call me by Dung
Quoted 12 lines · On Wednesday 13 November 2013 15:16:05 Nguyen Viet Dung wrote:
Quoted 10 lines
Hi Laurent-san,
I have tested the stable v3.12 kernel for armadillo800-eva board. And it had a error relates LCDC.
error detail:
-----------------
can not display a bitmap image on LCD screen.
when boot the board,boot log is can not display on LCD screen too.
Quoted 8 lines
Quoted 5 lines
Cause:
---------
kernel that had above error:up tream v3.12-rc1....stable v2.12.0 Error is generated in the following patch.
[d58226a ARM: shmobile: armadillo800eva: Add backlight support]I will try to fix that. The LCDC hardware is supported by two drivers, an FBDEV driver (
drivers/video/sh_mobile_lcdcfb.c) and a DRM driver (drivers/gpu/drm/shmobile). Could you please tell which driver you're using ?
When test LCDC,I have used the driver of drivers/video/sh_mobile_lcdcfb.c.
Best regards,
Nguyen Viet Dung.