linux

Files

Thomas Zimmermann e5a3c24bca Revert "drm/mgag200: Add vblank support"

This reverts commit 6c9e14ee9f.
This reverts commit d5070c9b29.
This reverts commit 89c6ea2006.

The VLINE interrupt doesn't work correctly on G200SE-A (at least). We
have also seen missing interrupts on G200ER. So revert vblank support.
Fixes frozen displays and warnings about missed vblanks.

[   33.818362] [CRTC:34:crtc-0] vblank wait timed out

From the vblank code, the driver only keeps the register constants and
the line that disables all interrupts in mgag200_device_init(). Both
is still useful without vblank handling.

Reported-by: Tony Luck <tony.luck@intel.com>
Closes: https://lore.kernel.org/dri-devel/Zvx6lSi7oq5xvTZb@agluck-desk3.sc.intel.com/raw
Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241015063932.8620-1-tzimmermann@suse.de

2024-10-17 08:49:45 +02:00

Kconfig

drm/mgag200: Add an option to disable Write-Combine

2024-05-21 09:38:47 +02:00

Makefile

drm/mgag200: Add VGA-BMC output

2024-08-09 08:13:45 +02:00

mgag200_bmc.c

drm/mgag200: Remove BMC output

2024-08-09 08:13:48 +02:00

mgag200_ddc.c

drm/mgag200: Acquire I/O-register lock in DDC code