Ping for review
Am 17.07.24 um 16:24 schrieb Thomas Zimmermann:
Here are a number of updates for ast's ASTDP transmitter code.
So far the ast driver required the DisplayPort to be connected
at boot. Later detection was not supported. Re-connecting the
cable was also not supported. Once atomic_disable powered off
the physical ASTDP connector, there was no way of detecting a
conencted display. Patch 1 makes Hot Plug Detection work. If
ncesessary, the connector's detect helper powers up the physical
connector to read the HPD status.
That's a good oportunity to clean up ast's whole detection code
for ASTDP transmitters. So patch 2 to 4 remove duplicated status
tests throughout the ASTDP code.
Patch 5 simplified the code for reading the display's EDID data
from the firmware.
Tested on AST2600 hardware with an ASTDP transmitter.
Thomas Zimmermann (5):
drm/ast: astdp: Wake up during connector status detection
drm/ast: astdp: Test firmware status once during probing
drm/ast: astdp: Only test HDP state in ast_astdp_is_connected()
drm/ast: astdp: Perform link training during atomic_enable
drm/ast: astdp: Clean up EDID reading
drivers/gpu/drm/ast/ast_dp.c | 186 +++++++++++++++------------------
drivers/gpu/drm/ast/ast_drv.h | 4 +-
drivers/gpu/drm/ast/ast_main.c | 6 +-
drivers/gpu/drm/ast/ast_mode.c | 31 +++++-
drivers/gpu/drm/ast/ast_post.c | 2 +-
drivers/gpu/drm/ast/ast_reg.h | 22 ++--
6 files changed, 126 insertions(+), 125 deletions(-)
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Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)
