Enabling the GPU power domain requires that the GPU regulator is
enabled. The regulator is enabled at boot time, but gets disabled
automatically when there are no users.
This means the system might run into a failure state hanging the
whole system for the following use cases:
* if the GPU driver is being probed late (e.g. build as a
module and firmware is not in initramfs), the regulator
might already have been disabled. In that case the power
domain is enabled before the regulator.
* unbinding the GPU driver will disable the PM domain and
the regulator. When the driver is bound again, the PM
domain will be enabled before the regulator and error
appears.
Avoid this by adding an explicit regulator dependency to the
power domain.
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reported-by: Adrián Martínez Larumbe <adrian.larumbe@collabora.com>
Tested-by: Adrian Larumbe <adrian.larumbe@collabora.com> # On Rock 5B
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20250220-rk3588-gpu-pwr-domain-regulator-v6-8-a4f9c24e5b81@kernel.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
The preferred nodename for fixed-regulators has changed to
pattern: '^regulator(-[0-9]+v[0-9]+|-[0-9a-z-]+)?$'
Fix all Rockchip DT regulator nodenames.
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/0ae40493-93e9-40cd-9ca9-990ae064f21a@gmail.com
[adapted rebased on top of a number of other changes and included
neu6a-wifi + wolfvision-pf5-io-expander overlays]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
FET3588-C is an System on Module made by Forlinx based on Rockchip RK3588.
This SoM used by OK3588-C Board.
FET3588-C features:
- Rockchip RK3588
- LPDDR4 4/8 GB
- eMMC 32/64 GB
Add support for Forlinx FET3588-C SoM.
Signed-off-by: Dmitry Yashin <dmt.yashin@gmail.com>
Link: https://lore.kernel.org/r/20240403151229.30577-3-dmt.yashin@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
