--- zzzz-none-000/linux-4.9.279/include/linux/serial_core.h	2021-08-08 06:38:54.000000000 +0000
+++ puma7-atom-6591-750/linux-4.9.279/include/linux/serial_core.h	2023-02-08 11:43:43.000000000 +0000
@@ -66,6 +66,7 @@
 	void		(*set_ldisc)(struct uart_port *, struct ktermios *);
 	void		(*pm)(struct uart_port *, unsigned int state,
 			      unsigned int oldstate);
+	void		(*wake_peer)(struct uart_port *);
 
 	/*
 	 * Return a string describing the type of the port
@@ -194,6 +195,7 @@
 #define UPF_NO_TXEN_TEST	((__force upf_t) (1 << 15))
 #define UPF_MAGIC_MULTIPLIER	((__force upf_t) ASYNC_MAGIC_MULTIPLIER /* 16 */ )
 
+#define UPF_AVM_POLLING		((__force upf_t) (1 << 19))
 /* Port has hardware-assisted h/w flow control */
 #define UPF_AUTO_CTS		((__force upf_t) (1 << 20))
 #define UPF_AUTO_RTS		((__force upf_t) (1 << 21))
@@ -416,6 +418,13 @@
 int uart_suspend_port(struct uart_driver *reg, struct uart_port *port);
 int uart_resume_port(struct uart_driver *reg, struct uart_port *port);
 
+/*
+ * Uart enable/disable control
+ * */
+#ifdef CONFIG_INTEL_UART_ENABLE_CONTROL
+int uart_sysfs_create_uart_enable_ctrl(void);
+#endif
+
 #define uart_circ_empty(circ)		((circ)->head == (circ)->tail)
 #define uart_circ_clear(circ)		((circ)->head = (circ)->tail = 0)