The branch main has been updated by imp:
URL:
https://cgit.FreeBSD.org/src/commit/?id=cc7854e10903cd4726a4da6610ebf4dcf69de352
commit cc7854e10903cd4726a4da6610ebf4dcf69de352
Author: Warner Losh <i...@freebsd.org>
AuthorDate: 2024-10-14 21:57:16 +0000
Commit: Warner Losh <i...@freebsd.org>
CommitDate: 2024-10-14 22:03:58 +0000
uart: export rclk via sysctl
To help debugging, export the rclk a uart is using as
dev.uart.X.rclk. It can be opaque when it is wrong since any error
messages printed to the system console using the wrong rclk aren't
informative.
Sponsored by: Netflix
Reviewed by: andrew, markj
Differential Revision: https://reviews.freebsd.org/D47070
---
sys/dev/uart/uart_core.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/sys/dev/uart/uart_core.c b/sys/dev/uart/uart_core.c
index 71f39e4c71e7..d0c4a54c8038 100644
--- a/sys/dev/uart/uart_core.c
+++ b/sys/dev/uart/uart_core.c
@@ -752,6 +752,11 @@ uart_bus_attach(device_t dev)
"rx_overruns", CTLFLAG_RD, &sc->sc_rxoverruns, 0,
"Receive overruns");
+ SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
+ SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
+ "rclk", CTLFLAG_RD, &sc->sc_bas.rclk, 0,
+ "Baud clock for device");
+
return (0);
fail:
