os/arch/arm/src/amebasmart: fix sem_timedwait(&g_read_cmd_done) not being called

1. change condition from receive_cmd_done flag to MIPI_LPTX_IS_READ, resolve the issue when rx isr is called earlier than sem_timedwait.
2. re-initialize semaphore when timeout happen.

Author: zhongnuo-tang

os/arch/arm/src/amebasmart/amebasmart_mipi.c

@@ -482,6 +482,7 @@ static int amebasmart_mipi_transfer(FAR struct mipi_dsi_host *dsi_host, FAR cons
 		return ret;
 	}
 	send_cmd_done = 0;
+	receive_cmd_done = 1;
 	rx_data_rdy = FALSE;
 	if (msg->rx_buf) {
 		rx_data_ptr = msg->rx_buf;
@@ -500,22 +501,18 @@ static int amebasmart_mipi_transfer(FAR struct mipi_dsi_host *dsi_host, FAR cons
 	(void)clock_gettime(CLOCK_REALTIME, &abstime);
 	abstime.tv_sec += MIPI_TRANSFER_TIMEOUT;
 	ret = sem_timedwait(&g_send_cmd_done, &abstime);
-	if (!receive_cmd_done) {
-		ret = sem_timedwait(&g_read_cmd_done, &abstime);
+	if (ret != OK) {
+		goto Fail_case;
 	}
-	leave_critical_section(flags);
-	if (send_cmd_done != 1 || receive_cmd_done != 1) {
-#ifdef CONFIG_PM
-		bsp_pm_domain_control(BSP_MIPI_DRV, 0);
-#endif
-#ifdef CONFIG_SMP
-		spin_unlock(&g_rtl8730e_config_dev_s_underflow);
-#endif
-		if (msg->rx_buf && msg->rx_len > 0) {
-			memset(msg->rx_buf, 0, msg->rx_len);
+	if (MIPI_LPTX_IS_READ(msg->type)) {
+		(void)clock_gettime(CLOCK_REALTIME, &abstime);
+		abstime.tv_sec += MIPI_TRANSFER_TIMEOUT;
+		ret = sem_timedwait(&g_read_cmd_done, &abstime);
+		if (ret != OK) {
+			goto Fail_case;
 		}
-		return FAIL;
 	}
+	leave_critical_section(flags);
 #ifdef CONFIG_SMP
 	spin_unlock(&g_rtl8730e_config_dev_s_underflow);
 #endif
@@ -527,6 +524,26 @@ static int amebasmart_mipi_transfer(FAR struct mipi_dsi_host *dsi_host, FAR cons
 		rx_data_len = 0;
 	}
 	return OK;
+Fail_case:
+#ifdef CONFIG_PM
+	bsp_pm_domain_control(BSP_MIPI_DRV, 0);
+#endif
+#ifdef CONFIG_SMP
+	spin_unlock(&g_rtl8730e_config_dev_s_underflow);
+#endif
+	if (send_cmd_done == 0) {
+		sem_init(&g_send_cmd_done, 0, 0);
+	}
+	if (MIPI_LPTX_IS_READ(msg->type)) {
+		sem_init(&g_read_cmd_done, 0, 0);
+	}
+	if (msg->rx_buf && msg->rx_len > 0) {
+		memset(msg->rx_buf, 0, msg->rx_len);
+		rx_data_ptr = NULL;
+		rx_data_len = 0;
+	}
+	leave_critical_section(flags);
+	return FAIL;
 }
 
 #ifdef CONFIG_PM