use c99 instead of c23

3 files changed, 7 insertions, 8 deletions

diff --git a/src/clock.c b/src/clock.c
index 5603693..328ad52 100644
--- a/src/clock.c
+++ b/src/clock.c
@@ -44,18 +44,18 @@ enum clock_registers {
 	TRACECONFIG         = 0x55c,
 };
 
-static bool init_hfclk() {
+static int init_hfclk() {
 	/* We just assert that the source clock is running with the CPU internal clock
      * as source */
 	u32 hfclk_status = READ_CLK_REG(HFCLKSTAT);
-	int clk_src = hfclk_status & 0x1;
-	bool clk_running = (hfclk_status >> 16) & 0x1;
+	u32 clk_src = hfclk_status & 0x1;
+	u32 clk_running = (hfclk_status >> 16) & 0x1;
 
 	return (clk_src == HFINT) && clk_running;
 }
 
-static bool init_lfclk() {
-	bool clk_started = false;
+static int init_lfclk() {
+	int clk_started = 0;
 	enum lfclk_src src = LFRC;
 
 	/* LFCLK use the LFRC clock by default, so it should be ready
@@ -74,6 +74,6 @@ static bool init_lfclk() {
 	return src == LFRC;
 }
 
-bool init_clock() {
+int init_clock() {
 	return init_hfclk() && init_lfclk();
 }
diff --git a/src/clock.h b/src/clock.h
index 30cfb44..8c5d1f0 100644
--- a/src/clock.h
+++ b/src/clock.h
@@ -5,6 +5,6 @@
  * Init the nrf52832 CLOCK device and ensure that clock sources are correctly
  * selected.
  */
-bool init_clock();
+int init_clock();
 
 #endif
diff --git a/src/main.c b/src/main.c
index 02c20f8..aab0723 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,6 +1,5 @@
 #include "clock.h"
 
-[[noreturn]]
 void main() {
 	init_clock();