diff mbox series

[PULL,18/23] hw/rtc/ls7a_rtc: Add reset function

Message ID 20220704093357.983255-19-richard.henderson@linaro.org
State Accepted
Commit e5c0367e2bbcf730e96614f63ea7575885fdde98
Headers show
Series [PULL,01/23] linux-user: Add LoongArch generic header files | expand

Commit Message

Richard Henderson July 4, 2022, 9:33 a.m. UTC 
From: Xiaojuan Yang <yangxiaojuan@loongson.cn>

Add ls7a rtc reset function to delete timers and clear regs when rtc reset.

Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Message-Id: <20220701093407.2150607-5-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 hw/rtc/ls7a_rtc.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
diff mbox series

Patch

diff --git a/hw/rtc/ls7a_rtc.c b/hw/rtc/ls7a_rtc.c
index f1e7a660e9..eb10cdb451 100644
--- a/hw/rtc/ls7a_rtc.c
+++ b/hw/rtc/ls7a_rtc.c
@@ -463,6 +463,25 @@  static void ls7a_rtc_realize(DeviceState *dev, Error **errp)
 
 }
 
+/* delete timer and clear reg when reset */
+static void ls7a_rtc_reset(DeviceState *dev)
+{
+    int i;
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
+    LS7ARtcState *d = LS7A_RTC(sbd);
+    for (i = 0; i < TIMER_NUMS; i++) {
+        if (toy_enabled(d)) {
+            timer_del(d->toy_timer[i]);
+        }
+        if (rtc_enabled(d)) {
+            timer_del(d->rtc_timer[i]);
+        }
+        d->toymatch[i] = 0;
+        d->rtcmatch[i] = 0;
+    }
+    d->cntrctl = 0;
+}
+
 static int ls7a_rtc_pre_save(void *opaque)
 {
     LS7ARtcState *s = LS7A_RTC(opaque);
@@ -511,6 +530,7 @@  static void ls7a_rtc_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     dc->vmsd = &vmstate_ls7a_rtc;
     dc->realize = ls7a_rtc_realize;
+    dc->reset = ls7a_rtc_reset;
     dc->desc = "ls7a rtc";
 }