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authorIonut Nechita <ionut_n2001@yahoo.com>2026-03-24 00:13:43 +0300
committerAlex Deucher <alexander.deucher@amd.com>2026-04-03 20:37:41 +0300
commitfc0ed906f1eaf189eff76f586bb898eaa4193ba9 (patch)
treea918797cf26dc6d3b2ba8a0a6dc49699aefedbd2 /scripts/basic/Makefile
parent512f9f150f367176fa9e5f4613b4863409a6f686 (diff)
downloadlinux-fc0ed906f1eaf189eff76f586bb898eaa4193ba9.tar.xz
drm/amd/display: Wire up dcn10_dio_construct() for all pre-DCN401 generations
Description: - Commit b82f0759346617b2 ("drm/amd/display: Migrate DIO registers access from hwseq to dio component") moved DIO_MEM_PWR_CTRL register access behind the new dio abstraction layer but only created the dio object for DCN 4.01. On all other generations (DCN 10/20/21/201/30/301/302/303/ 31/314/315/316/32/321/35/351/36), the dio pointer is NULL, causing the register write to be silently skipped. This results in AFMT HDMI memory not being powered on during init_hw, which can cause HDMI audio failures and display issues on affected hardware including Renoir/Cezanne (DCN 2.1) APUs that use dcn10_init_hw. Call dcn10_dio_construct() in each older DCN generation's resource.c to create the dio object, following the same pattern as DCN 4.01. This ensures the dio pointer is non-NULL and the mem_pwr_ctrl callback works through the dio abstraction for all DCN generations. Fixes: b82f07593466 ("drm/amd/display: Migrate DIO registers access from hwseq to dio component.") Reviewed-by: Ivan Lipski <ivan.lipski@amd.com> Signed-off-by: Ionut Nechita <ionut_n2001@yahoo.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit a4983968fa5b3179ab090407d325a71cdc96874e)
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