Hi, again, As a follow-up on this morning's email [1], I narrowed down the issue to the PCA9538 expander driver. For some reason, when CONFIG_GPIO_PCA953X_IRQ is enabled, interrupts will eventually go unhandled, causing the kernel to complain loudly and disable the respective interrupt line. I never had this problem on OpenWrt 19.07 with Linux 4.14.x. Any suggestions (apart from disabling CONFIG_GPIO_PCA953X_IRQ or passing irqpoll in the kernel command line)?
Thanks in advance, Rui [1] https://lists.openwrt.org/pipermail/openwrt-devel/2020-June/023954.html _______________________________________________ openwrt-devel mailing list [email protected] https://lists.openwrt.org/mailman/listinfo/openwrt-devel
