The MPFS RNG driver is not described by the device tree and is instead registered dynamically by the system controller. Explicitly bind the MPFS RNG driver as a child device during system controller probe.
This ensures the RNG device is instantiated and available via UCLASS_RNG without requiring a device tree node. Signed-off-by: Jamie Gibbons <[email protected]> --- drivers/misc/mpfs_syscontroller.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/misc/mpfs_syscontroller.c b/drivers/misc/mpfs_syscontroller.c index 61d6780f0b9..79dc43f085f 100644 --- a/drivers/misc/mpfs_syscontroller.c +++ b/drivers/misc/mpfs_syscontroller.c @@ -11,6 +11,7 @@ #include <asm/system.h> #include <dm.h> #include <dm/device_compat.h> +#include <dm/lists.h> #include <env.h> #include <errno.h> #include <linux/compat.h> @@ -332,6 +333,7 @@ EXPORT_SYMBOL(mpfs_syscontroller_process_dtbo); static int mpfs_syscontroller_probe(struct udevice *dev) { struct mpfs_syscontroller_priv *sys_controller = dev_get_priv(dev); + struct udevice *rng_dev; int ret; ret = mbox_get_by_index(dev, 0, &sys_controller->chan); @@ -341,6 +343,10 @@ static int mpfs_syscontroller_probe(struct udevice *dev) return ret; } + ret = device_bind_driver(dev, "mpfs_rng", "mpfs-rng", &rng_dev); + if (ret) + dev_err(dev, "Failed to bind mpfs_rng: %d\n", ret); + init_completion(&sys_controller->c); dev_info(dev, "Registered MPFS system controller\n"); -- 2.43.0
