mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-02-16 17:45:01 -05:00
660b299bed
Commitb6bcbce335("soc/tegra: pmc: Ensure power-domains are in a known state") was introduced so that all power domains get initialized to a known working state when booting and it does this by shutting them down (including asserting resets and disabling clocks) before registering each power domain with the genpd framework, leaving it to each driver to later on power its needed domains. This caused the Google Pixel C to hang when booting due to a workaround in the DSI driver introduced in commitb22fd0b963("drm/tegra: dsi: Clear enable register if powered by bootloader") meant to handle the case where the bootloader enabled the DSI hardware module. The workaround relies on reading a hardware register to determine the current status and afterb6bcbce335that now happens in a powered down state thus leading to the boot hang. Fix this by revertingb22fd0b963since currently we are guaranteed that the hardware will be fully reset by the time we start enabling the DSI module. Fixes:b6bcbce335("soc/tegra: pmc: Ensure power-domains are in a known state") Cc: stable@vger.kernel.org Signed-off-by: Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patch.msgid.link/20251103-diogo-smaug_ec_typec-v1-1-be656ccda391@tecnico.ulisboa.pt