public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-08-05 16:54:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

drm/amd/display: read invalid ddc pin status cause engine busy

Browse source 
[Why]
There is no DDC_6 pin on new asic cause the mapping table is
incorrect. When app try to access DDC_VGA port, driver read
an invalid ddc pin status and report engine busy.

[How]
Add dummy DDC_6 pin to align gpio structure.

Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Paul Hsieh <Paul.Hsieh@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Paul Hsieh 2022-11-24 13:03:26 +08:00 • committed by Alex Deucher
parent 2a2acdd7f8
commit 8747075f54
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/gpu/drm/amd/display/dc/gpio/dcn32/hw_factory_dcn32.c
View file

@ -256,8 +256,8 @@ static const struct hw_factory_funcs funcs = {
*/
void dal_hw_factory_dcn32_init(struct hw_factory *factory)
{
factory->number_of_pins[GPIO_ID_DDC_DATA] = 6;
factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 6;
factory->number_of_pins[GPIO_ID_DDC_DATA] = 8;
factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 8;
factory->number_of_pins[GPIO_ID_GENERIC] = 4;
factory->number_of_pins[GPIO_ID_HPD] = 5;
factory->number_of_pins[GPIO_ID_GPIO_PAD] = 28;