On Mon, Jan 30, 2023 at 7:14 AM Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote: > > On Mon, Jan 30, 2023 at 02:31:53PM +0000, Sudeep Holla wrote: > > On Thu, Jan 26, 2023 at 04:11:31PM -0800, Saravana Kannan wrote: > > > Registering an irqdomain sets the flag for the fwnode. But having the > > > flag set when a device is added is interpreted by fw_devlink to mean the > > > device has already been initialized and will never probe. This prevents > > > fw_devlink from creating device links with the gpio_device as a > > > supplier. So, clear the flag before adding the device. > > ... > > > > + /* > > > + * If fwnode doesn't belong to another device, it's safe to clear its > > > + * initialized flag. > > > + */ > > > + if (!gdev->dev.fwnode->dev) > > > + fwnode_dev_initialized(gdev->dev.fwnode, false); > > > > This is the one causing the kernel crash during the boot on FVP which > > Naresh has reported. Just reverted this and was able to boot, confirming > > the issue with this patch. > > I'm wondering if > > if (!dev_fwnode(&gdev->dev)->dev) > fwnode_dev_initialized(&dev_fwnode(gdev->dev), false); > > works. No, that won't help. The problem was that with arm32, we have gpio devices created without any of_node or fwnode. So I can't assume fwnode will always be present. -Saravana
