Bwmgr API not supported

[LeonChen]

Jetpack 5.1.2
When I am testing the camera…
There is a considerable amount of identical messages consistently appearing in the kernel log.
I hope to resolve this issue, as it may impact the system and lead to potential crashes.

[JerryChang]

it’s a known issue, bwmgr has disabled for Orin series. you may ignore these messages.

[LeonChen]

If used for an extended period, will this message cause the system log files to grow, occupying space? I would like to disable it.

[JerryChang]

hello LeonChen,

you may following below to lower the print level, or, simply remove this line to disable the reporting.

diff --git a/drivers/platform/tegra/mc/emc_bwmgr.c b/drivers/platform/tegra/mc/emc_bwmgr.c
index cc6efb31a..f9f42d9c8 100644
--- a/drivers/platform/tegra/mc/emc_bwmgr.c
+++ b/drivers/platform/tegra/mc/emc_bwmgr.c
@@ -58,7 +58,7 @@ struct mrq_emc_dvfs_latency_response bwmgr_emc_dvfs;
 #define IS_BWMGR_SUPPORTED(x, err)                     \
 do {                                                   \
        if (x) {                                        \
-               pr_err("bwmgr API not supported");      \
+               pr_debug("bwmgr API not supported");    \
                return (err);                           \
        }                                               \
 } while (0)
@@ -378,7 +378,7 @@ EXPORT_SYMBOL_GPL(tegra_bwmgr_register);
 void tegra_bwmgr_unregister(struct tegra_bwmgr_client *handle)
 {
        if (bwmgr_disable) {
-               pr_err("bwmgr API not supported");
+               pr_debug("bwmgr API not supported");