8 May
2024
8 May
'24
5:40 p.m.
On Thu, Apr 18, 2024 at 04:51:51PM +0100, Vitor Soares wrote:
From: Vitor Soares vitor.soares@toradex.com
During the probe, the genpd power_dev is added to the dpm_list after blk_ctrl due to its parent/child relationship. Making the blk_ctrl suspend after and resume before the genpd power_dev.
As a consequence, the system hangs when resuming the VPU due to the power domain dependency.
To ensure the proper suspend/resume order, add a device link betweem blk_ctrl and genpd power_dev. It guarantees genpd power_dev is suspended after and resumed before blk-ctrl.
Cc: Adam Ford
Francesco