135 static inline int serial_in(struct uart_8250_port *up, int offset)  in serial_in()  argument
137 	return up->port.serial_in(&up->port, offset);  in serial_in()
140 static inline void serial_out(struct uart_8250_port *up, int offset, int value)  in serial_out()  argument
142 	up->port.serial_out(&up->port, offset, value);  in serial_out()
147  *	@up:	uart 8250 port
151  *	up->lsr_saved_flags.
155 static inline u16 serial_lsr_in(struct uart_8250_port *up)  in serial_lsr_in()  argument
157 	u16 lsr = up->lsr_saved_flags;  in serial_lsr_in()
159 	lsr |= serial_in(up, UART_LSR);  in serial_lsr_in()
160 	up->lsr_saved_flags = lsr & up->lsr_save_mask;  in serial_lsr_in()
168 static void serial_icr_write(struct uart_8250_port *up, int offset, int value)  in serial_icr_write()  argument
170 	serial_out(up, UART_SCR, offset);  in serial_icr_write()
171 	serial_out(up, UART_ICR, value);  in serial_icr_write()
174 static unsigned int __maybe_unused serial_icr_read(struct uart_8250_port *up,  in serial_icr_read()  argument
179 	serial_icr_write(up, UART_ACR, up->acr | UART_ACR_ICRRD);  in serial_icr_read()
180 	serial_out(up, UART_SCR, offset);  in serial_icr_read()
181 	value = serial_in(up, UART_ICR);  in serial_icr_read()
182 	serial_icr_write(up, UART_ACR, up->acr);  in serial_icr_read()
189 static inline u32 serial_dl_read(struct uart_8250_port *up)  in serial_dl_read()  argument
191 	return up->dl_read(up);  in serial_dl_read()
194 static inline void serial_dl_write(struct uart_8250_port *up, u32 value)  in serial_dl_write()  argument
196 	up->dl_write(up, value);  in serial_dl_write()
199 static inline bool serial8250_set_THRI(struct uart_8250_port *up)  in serial8250_set_THRI()  argument
202 	lockdep_assert_held_once(&up->port.lock);  in serial8250_set_THRI()
204 	if (up->ier & UART_IER_THRI)  in serial8250_set_THRI()
206 	up->ier |= UART_IER_THRI;  in serial8250_set_THRI()
207 	serial_out(up, UART_IER, up->ier);  in serial8250_set_THRI()
211 static inline bool serial8250_clear_THRI(struct uart_8250_port *up)  in serial8250_clear_THRI()  argument
214 	lockdep_assert_held_once(&up->port.lock);  in serial8250_clear_THRI()
216 	if (!(up->ier & UART_IER_THRI))  in serial8250_clear_THRI()
218 	up->ier &= ~UART_IER_THRI;  in serial8250_clear_THRI()
219 	serial_out(up, UART_IER, up->ier);  in serial8250_clear_THRI()
293 static inline void serial8250_out_MCR(struct uart_8250_port *up, int value)  in serial8250_out_MCR()  argument
295 	serial_out(up, UART_MCR, value);  in serial8250_out_MCR()
297 	if (up->gpios)  in serial8250_out_MCR()
298 		mctrl_gpio_set(up->gpios, serial8250_MCR_to_TIOCM(value));  in serial8250_out_MCR()
301 static inline int serial8250_in_MCR(struct uart_8250_port *up)  in serial8250_in_MCR()  argument
305 	mctrl = serial_in(up, UART_MCR);  in serial8250_in_MCR()
307 	if (up->gpios) {  in serial8250_in_MCR()
310 		mctrl_gpio = mctrl_gpio_get_outputs(up->gpios, &mctrl_gpio);  in serial8250_in_MCR()
426 static inline int ns16550a_goto_highspeed(struct uart_8250_port *up)  in ns16550a_goto_highspeed()  argument
430 	status = serial_in(up, 0x04); /* EXCR2 */  in ns16550a_goto_highspeed()
438 		serial_out(up, 0x04, status);  in ns16550a_goto_highspeed()