0007300: Fix 'unbalanced disables for vddsoc' for fsimx6sx

ID	Project	Category	View Status	Date Submitted	Last Update

0007300	fsimx_Kernel	Kernel	public	2026-07-08 09:22	2026-07-08 09:22

Reporter	dippold	Assigned To
Priority	normal	Severity	minor	Reproducibility	always
Status	resolved	Resolution	fixed
Platform	fsimx6sx	OS	Linux	OS Version	6.6.129
Target Version	fsimx-next

Summary	0007300: Fix 'unbalanced disables for vddsoc' for fsimx6sx
Description	Since the last release for fsimx6sx, based on the Kernel 5.15, the enabling and disabling of power domains has been made more strict. This now causes a warning on fsimx6sx Boards whos rocessors are not equipped with a GPU. This happend because of an oversight in a change we made in NXPs GPC driver (075f6df04ebd297cd89a83cfb8c799e7f29b4d2f). In the function imx6_pm_domain_power_on it correctly handles these CPUs with the following lines: if (genpd->flags & PGC_DOMAIN_FLAG_NO_PU) return -EBUSY; The flag 'PGC_DOMAIN_FLAG_NO_PU' is se by the driver if the devicetree has the 'no-gpu' flag, which we set if neccessary in the U-Boot after evaluating the CPU type. This is neccessary as GPU-less Board will not boot otherwise. The function imx6_pm_domain_power_off has not been patched in the earlier change, as the warning was not shown. Add the same code snippet into this function to fix this behaviour.