The branch main has been updated by mhorne:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=08635c51d1e34f8a3e42c7cf35dc7264a5b68118

commit 08635c51d1e34f8a3e42c7cf35dc7264a5b68118
Author:     Mitchell Horne <[email protected]>
AuthorDate: 2024-03-08 14:09:08 +0000
Commit:     Mitchell Horne <[email protected]>
CommitDate: 2024-03-08 14:09:36 +0000

    clkdom_dump(): improve output text
    
    If the call to clknode_get_freq() returns an error (unlikely), report
    this, rather than printing the error code as the clock frequency.
    
    If the clock has no parent (e.g. a fixed reference clock), print "none"
    rather than "(NULL)(-1)". This is a more human-legible presentation of the
    same information.
    
    Reviewed by:    manu
    MFC after:      1 week
    Sponsored by:   The FreeBSD Foundation
    Differential Revision:  https://reviews.freebsd.org/D44267
---
 sys/dev/clk/clk.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/sys/dev/clk/clk.c b/sys/dev/clk/clk.c
index 52015d4e2905..5c74d84cacc8 100644
--- a/sys/dev/clk/clk.c
+++ b/sys/dev/clk/clk.c
@@ -512,10 +512,20 @@ clkdom_dump(struct clkdom * clkdom)
        CLK_TOPO_SLOCK();
        TAILQ_FOREACH(clknode, &clkdom->clknode_list, clkdom_link) {
                rv = clknode_get_freq(clknode, &freq);
-               printf("Clock: %s, parent: %s(%d), freq: %ju\n", clknode->name,
-                   clknode->parent == NULL ? "(NULL)" : clknode->parent->name,
-                   clknode->parent_idx,
-                   (uintmax_t)((rv == 0) ? freq: rv));
+               if (rv != 0) {
+                       printf("Clock: %s, error getting frequency: %d\n",
+                           clknode->name, rv);
+                       continue;
+               }
+
+               if (clknode->parent != NULL) {
+                       printf("Clock: %s, parent: %s(%d), freq: %ju\n",
+                           clknode->name, clknode->parent->name,
+                           clknode->parent_idx, (uintmax_t)freq);
+               } else {
+                       printf("Clock: %s, parent: none, freq: %ju\n",
+                           clknode->name, (uintmax_t)freq);
+               }
        }
        CLK_TOPO_UNLOCK();
 }

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