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>
This enables the on-chip thermal monitoring sensor (TSADC) on all
RK3588(s) boards that don't have it enabled yet. It provides temperature
monitoring for the SoC and emergency thermal shutdowns, and is thus
important to have in place before CPU DVFS is enabled, as high CPU
operating performance points can overheat the chip quickly in the
absence of thermal management.
Signed-off-by: Alexey Charkov <alchark@gmail.com>
Link: https://lore.kernel.org/r/20240617-rk-dts-additions-v5-2-c1f5f3267f1e@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
On Edgeble Neural Compute Module add system-power-controller
property to RK806 pmic so that these chips can power off the device.
Cc: Jagan Teki <jagan@edgeble.ai>
Signed-off-by: Anand Moon <anand@edgeble.ai>
Link: https://lore.kernel.org/r/20240502094246.4695-1-anand@edgeble.ai
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
gpio_pwrctrl2 gets duplicated by both rk806_dvs1_null and rk806_dvs2_null
gpio_pwrctrl1 is unset. This typo appears in multiple files. Let's fix them.
Note: I haven't had the chance to test them all because I don't own all
of these boards (obviously). Please test if it's needed.
Signed-off-by: Jing Luo <jing@jing.rocks>
Link: https://lore.kernel.org/r/20240420130355.639406-1-jing@jing.rocks
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
The RK8602 and RK8603 voltage regulators on the Rock 5B board provide
the power lines vdd_cpu_big0 and vdd_cpu_big1, respectively.
Add the necessary device tree nodes and bind them to the corresponding
CPU big core nodes.
Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Link: https://lore.kernel.org/r/20231125190522.87607-6-jagan@edgeble.ai
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Edgeble NCM6A-IO is common compatible IO board for both NCM6A
and NCM6B. Add a common io DTSI for it to include them in both
NCM6A and NCM6B DTS files.
Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Link: https://lore.kernel.org/r/20231125190522.87607-3-jagan@edgeble.ai
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
