On Mon, Feb 17, 2020 at 09:42:11AM +0100, Anatolij Gustschin wrote: > Currently when booting the kernel on i.MX8 U-Boot hangs in an > endless loop when switching off dma, connectivity or lsio power > domains during device removal. It hapens first when removing > gpio0 (gpio@5d080000) device, here its power domain device > 'lsio_gpio0' is obtained for switching off power. Since the > obtained 'lsio_gpio0' device is removed afterwards, its power > domain is also switched off and here the parent power domain > device 'lsio_power_domain' is optained for switching off the > power. Thereafter, when the obtained 'lsio_power_domain' is > removed, device_remove() removes its first child 'lsio_gpio0'. > During this child removal the 'lsio_power_domain' device is > obtained again for switching and when removing it later, > the same child removal is repeated, so we are stuck in an > endless loop. Below is a snippet from dm tree on i.MX8QXP > for better illustration of the DM devices relationship: > > Class Index Probed Driver Name
Applied to u-boot/master, thanks! -- Tom
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