drivers: bluetooth: hci: Fix the issue about the TRNG peripheral instance

HoZHel · cfriedt · commit 7a593ede3ebe · 2025-10-30T18:38:02.000-04:00
Fix the issue regarding passing the TRNG peripheral instance to the driver.

Increase the SYSTEM_WORKQUEUE_STACK_SIZE when CONFIG_BT is set.
According to the log of thread analyzer for beacon sample, 1048 bytes
are needed. So, it's been increased to a safer value.

Signed-off-by: Ali Hozhabri &lt;ali.hozhabri@st.com&gt;
diff --git a/drivers/bluetooth/hci/hci_stm32wb0.c b/drivers/bluetooth/hci/hci_stm32wb0.c
@@ -343,7 +343,7 @@ static int ble_pm_action(const struct device *dev,
 
 static void rng_get_random(void *num, size_t size)
 {
-	const struct device *dev = DEVICE_DT_GET(DT_DRV_INST(0));
+	const struct device *dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_entropy));
 	int res;
 
 	/* try to allocate from pool */
diff --git a/soc/st/stm32/stm32wb0x/Kconfig.defconfig b/soc/st/stm32/stm32wb0x/Kconfig.defconfig
@@ -20,6 +20,9 @@ endif # STM32WB0_RADIO_TIMER
 
 if BT
 
+configdefault SYSTEM_WORKQUEUE_STACK_SIZE
+	default 1152
+
 config BT_AUTO_PHY_UPDATE
 	default n
 

Original file line number	Diff line number	Diff line change
`@@ -343,7 +343,7 @@ static int ble_pm_action(const struct device *dev,`
`343`	`343`
`344`	`344`	`static void rng_get_random(void *num, size_t size)`
`345`	`345`	`{`
`346`		`- const struct device *dev = DEVICE_DT_GET(DT_DRV_INST(0));`
	`346`	`+ const struct device *dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_entropy));`
`347`	`347`	`int res;`
`348`	`348`
`349`	`349`	`/* try to allocate from pool */`