drivers: bluetooth: hci: silabs: Configure radio for sleep

asmellby · aescolar · commit 545e9334f7b3 · 2024-10-25T14:09:57.000+02:00
If PM is enabled, the radio must be configured to synchronize its
protocol timer with the low frequency timer.

Signed-off-by: Aksel Skauge Mellbye &lt;aksel.mellbye@silabs.com&gt;
diff --git a/drivers/bluetooth/hci/hci_silabs_efr32.c b/drivers/bluetooth/hci/hci_silabs_efr32.c
@@ -43,6 +43,7 @@ static atomic_t sli_btctrl_events;
 void BTLE_LL_EventRaise(uint32_t events);
 void BTLE_LL_Process(uint32_t events);
 bool sli_pending_btctrl_events(void);
+RAIL_Handle_t BTLE_LL_GetRadioHandle(void);
 
 void rail_isr_installer(void)
 {
@@ -212,6 +213,7 @@ static int slz_bt_open(const struct device *dev, bt_hci_recv_t recv)
 
 #ifdef CONFIG_PM
 	{
+		RAIL_ConfigSleep(BTLE_LL_GetRadioHandle(), RAIL_SLEEP_CONFIG_TIMERSYNC_ENABLED);
 		RAIL_Status_t status = RAIL_InitPowerManager();
 
 		if (status != RAIL_STATUS_NO_ERROR) {

Original file line number	Diff line number	Diff line change
`@@ -43,6 +43,7 @@ static atomic_t sli_btctrl_events;`
`43`	`43`	`void BTLE_LL_EventRaise(uint32_t events);`
`44`	`44`	`void BTLE_LL_Process(uint32_t events);`
`45`	`45`	`bool sli_pending_btctrl_events(void);`
	`46`	`+RAIL_Handle_t BTLE_LL_GetRadioHandle(void);`
`46`	`47`
`47`	`48`	`void rail_isr_installer(void)`
`48`	`49`	`{`
`@@ -212,6 +213,7 @@ static int slz_bt_open(const struct device *dev, bt_hci_recv_t recv)`
`212`	`213`
`213`	`214`	`#ifdef CONFIG_PM`
`214`	`215`	`{`
	`216`	`+ RAIL_ConfigSleep(BTLE_LL_GetRadioHandle(), RAIL_SLEEP_CONFIG_TIMERSYNC_ENABLED);`
`215`	`217`	`RAIL_Status_t status = RAIL_InitPowerManager();`
`216`	`218`
`217`	`219`	`if (status != RAIL_STATUS_NO_ERROR) {`