samples: radio_test: Add clock control for nRF54h20

This adds support for clock control driver for
nRF54h20 targets in Radio Test sample.

Jira: NCSDK-28468

Signed-off-by: Kamil Gawor <[email protected]>

Author: Kamil Gawor

samples/peripheral/radio_test/prj.conf

@@ -10,6 +10,7 @@ CONFIG_SHELL=y
 CONFIG_DYNAMIC_INTERRUPTS=y
 
 CONFIG_NRFX_TIMER0=y
+CONFIG_CLOCK_CONTROL=y
 
 CONFIG_ENTROPY_GENERATOR=y
 CONFIG_NRF_SECURITY=y

samples/peripheral/radio_test/src/main.c

@@ -5,13 +5,14 @@
  */
 
 #include <zephyr/sys/printk.h>
-#if defined(CONFIG_CLOCK_CONTROL_NRF)
 #include <zephyr/drivers/clock_control.h>
 #include <zephyr/drivers/clock_control/nrf_clock_control.h>
-#endif /* defined(CONFIG_CLOCK_CONTROL_NRF) */
 #if defined(NRF54L15_XXAA)
 #include <hal/nrf_clock.h>
 #endif /* defined(NRF54L15_XXAA) */
+#if defined(CONFIG_CLOCK_CONTROL_NRF2)
+#include <hal/nrf_lrcconf.h>
+#endif
 
 #if defined(CONFIG_CLOCK_CONTROL_NRF)
 static void clock_init(void)
@@ -50,15 +51,49 @@ static void clock_init(void)
 
 	printk("Clock has started\n");
 }
+
+#elif defined(CONFIG_CLOCK_CONTROL_NRF2)
+
+static void clock_init(void)
+{
+	int err;
+	int res;
+	const struct device *radio_clk_dev =
+		DEVICE_DT_GET_OR_NULL(DT_CLOCKS_CTLR(DT_NODELABEL(radio)));
+	struct onoff_client radio_cli;
+
+	/** Keep radio domain powered all the time to reduce latency. */
+	nrf_lrcconf_poweron_force_set(NRF_LRCCONF010, NRF_LRCCONF_POWER_DOMAIN_1, true);
+
+	sys_notify_init_spinwait(&radio_cli.notify);
+
+	err = nrf_clock_control_request(radio_clk_dev, NULL, &radio_cli);
+
+	do {
+		err = sys_notify_fetch_result(&radio_cli.notify, &res);
+		if (!err && res) {
+			printk("Clock could not be started: %d\n", res);
+			return;
+		}
+	} while (err == -EAGAIN);
+
+#if defined(NRF54L15_XXAA)
+	/* MLTPAN-20 */
+	nrf_clock_task_trigger(NRF_CLOCK, NRF_CLOCK_TASK_PLLSTART);
+#endif /* defined(NRF54L15_XXAA) */
+
+	printk("Clock has started\n");
+}
+
+#else
+BUILD_ASSERT(false, "No Clock Control driver");
 #endif /* defined(CONFIG_CLOCK_CONTROL_NRF) */
 
 int main(void)
 {
 	printk("Starting Radio Test example\n");
 
-#if defined(CONFIG_CLOCK_CONTROL_NRF)
 	clock_init();
-#endif /* defined(CONFIG_CLOCK_CONTROL_NRF) */
 
 #if defined(CONFIG_SOC_SERIES_NRF54HX)
 	/* Apply HMPAN-102 workaround for nRF54H series */