diff options
| author | Jamie Gibbons <[email protected]> | 2026-07-22 16:45:45 +0100 |
|---|---|---|
| committer | Leo Yu-Chi Liang <[email protected]> | 2026-08-05 02:03:29 -0700 |
| commit | 752704d854fd22985470b03df8d4b303c265b307 (patch) | |
| tree | 303b896acc4b0fb2e4dc9b351477a8f0c391dfa4 | |
| parent | a5f93037f28624c612288e2d97604d73e03af5a3 (diff) | |
misc: mpfs_syscontroller: bind RNG sub-device
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]>
Acked-by: Conor Dooley <[email protected]>
| -rw-r--r-- | drivers/misc/mpfs_syscontroller.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/misc/mpfs_syscontroller.c b/drivers/misc/mpfs_syscontroller.c index d29cb2e9e59..b9aea7e1181 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> @@ -334,6 +335,7 @@ 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); @@ -343,6 +345,10 @@ 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"); |