Merge pull request #5341 from urish/patch-1

microdev1 · web-flow · commit 8520c430a70d · 2021-09-14T22:10:02.000+05:30
Enable WFI for raspberrypi port
diff --git a/ports/raspberrypi/supervisor/port.c b/ports/raspberrypi/supervisor/port.c
@@ -238,8 +238,8 @@ void port_interrupt_after_ticks(uint32_t ticks) {
 void port_idle_until_interrupt(void) {
     common_hal_mcu_disable_interrupts();
     if (!background_callback_pending()) {
-//	asm volatile ("dsb 0xF":::"memory");
-//        __wfi();
+        asm volatile ("dsb 0xF" ::: "memory");
+        __wfi();
     }
     common_hal_mcu_enable_interrupts();
 }

Original file line number	Diff line number	Diff line change
`@@ -238,8 +238,8 @@ void port_interrupt_after_ticks(uint32_t ticks) {`
`238`	`238`	`void port_idle_until_interrupt(void) {`
`239`	`239`	`common_hal_mcu_disable_interrupts();`
`240`	`240`	`if (!background_callback_pending()) {`
`241`		`-// asm volatile ("dsb 0xF":::"memory");`
`242`		`-// __wfi();`
	`241`	`+ asm volatile ("dsb 0xF" ::: "memory");`
	`242`	`+ __wfi();`
`243`	`243`	`}`
`244`	`244`	`common_hal_mcu_enable_interrupts();`
`245`	`245`	`}`