hw/watchdog/wdt_imx2: Trace timer activity

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-id: 20231028122415.14869-3-shentey@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/watchdog/trace-events

@@ -20,6 +20,8 @@ aspeed_wdt_write(uint64_t addr, uint32_t size, uint64_t data) "@0x%" PRIx64 " si
 # wdt_imx2.c
 imx2_wdt_read(uint32_t addr, uint16_t data) "[0x%" PRIx32 "] -> 0x%" PRIx16
 imx2_wdt_write(uint32_t addr, uint16_t data) "[0x%" PRIx32 "] <- 0x%" PRIx16
+imx2_wdt_interrupt(void) ""
+imx2_wdt_expired(void) ""
 
 # spapr_watchdog.c
 spapr_watchdog_start(uint64_t flags, uint64_t num, uint64_t timeout) "Flags 0x%" PRIx64 " num=%" PRId64 " %" PRIu64 "ms"

hw/watchdog/wdt_imx2.c

@@ -23,6 +23,8 @@ static void imx2_wdt_interrupt(void *opaque)
 {
     IMX2WdtState *s = IMX2_WDT(opaque);
 
+    trace_imx2_wdt_interrupt();
+
     s->wicr |= IMX2_WDT_WICR_WTIS;
     qemu_set_irq(s->irq, 1);
 }
@@ -31,6 +33,8 @@ static void imx2_wdt_expired(void *opaque)
 {
     IMX2WdtState *s = IMX2_WDT(opaque);
 
+    trace_imx2_wdt_expired();
+
     s->wrsr = IMX2_WDT_WRSR_TOUT;
 
     /* Perform watchdog action if watchdog is enabled */