85 static void mtk8250_rx_dma(struct uart_8250_port *up);
89 	struct uart_8250_port *up = param;  in mtk8250_dma_rx_complete()  local
90 	struct uart_8250_dma *dma = up->dma;  in mtk8250_dma_rx_complete()
91 	struct mtk8250_data *data = up->port.private_data;  in mtk8250_dma_rx_complete()
92 	struct tty_port *tty_port = &up->port.state->port;  in mtk8250_dma_rx_complete()
101 	spin_lock_irqsave(&up->port.lock, flags);  in mtk8250_dma_rx_complete()
121 	up->port.icount.rx += copied;  in mtk8250_dma_rx_complete()
125 	mtk8250_rx_dma(up);  in mtk8250_dma_rx_complete()
127 	spin_unlock_irqrestore(&up->port.lock, flags);  in mtk8250_dma_rx_complete()
130 static void mtk8250_rx_dma(struct uart_8250_port *up)  in mtk8250_rx_dma()  argument
132 	struct uart_8250_dma *dma = up->dma;  in mtk8250_rx_dma()
144 	desc->callback_param = up;  in mtk8250_rx_dma()
151 static void mtk8250_dma_enable(struct uart_8250_port *up)  in mtk8250_dma_enable()  argument
153 	struct uart_8250_dma *dma = up->dma;  in mtk8250_dma_enable()
154 	struct mtk8250_data *data = up->port.private_data;  in mtk8250_dma_enable()
155 	int lcr = serial_in(up, UART_LCR);  in mtk8250_dma_enable()
166 	serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR |  in mtk8250_dma_enable()
168 	serial_out(up, MTK_UART_DMA_EN,  in mtk8250_dma_enable()
171 	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);  in mtk8250_dma_enable()
172 	serial_out(up, UART_EFR, UART_EFR_ECB);  in mtk8250_dma_enable()
173 	serial_out(up, UART_LCR, lcr);  in mtk8250_dma_enable()
182 	mtk8250_rx_dma(up);  in mtk8250_dma_enable()
189 	struct uart_8250_port *up = up_to_u8250p(port);  in mtk8250_startup()  local
194 		up->dma = NULL;  in mtk8250_startup()
196 	if (up->dma) {  in mtk8250_startup()
209 	struct uart_8250_port *up = up_to_u8250p(port);  in mtk8250_shutdown()  local
212 	if (up->dma)  in mtk8250_shutdown()
219 static void mtk8250_disable_intrs(struct uart_8250_port *up, int mask)  in mtk8250_disable_intrs()  argument
221 	serial_out(up, UART_IER, serial_in(up, UART_IER) & (~mask));  in mtk8250_disable_intrs()
224 static void mtk8250_enable_intrs(struct uart_8250_port *up, int mask)  in mtk8250_enable_intrs()  argument
226 	serial_out(up, UART_IER, serial_in(up, UART_IER) | mask);  in mtk8250_enable_intrs()
229 static void mtk8250_set_flow_ctrl(struct uart_8250_port *up, int mode)  in mtk8250_set_flow_ctrl()  argument
231 	struct uart_port *port = &up->port;  in mtk8250_set_flow_ctrl()
232 	int lcr = serial_in(up, UART_LCR);  in mtk8250_set_flow_ctrl()
234 	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);  in mtk8250_set_flow_ctrl()
235 	serial_out(up, UART_EFR, UART_EFR_ECB);  in mtk8250_set_flow_ctrl()
236 	serial_out(up, UART_LCR, lcr);  in mtk8250_set_flow_ctrl()
237 	lcr = serial_in(up, UART_LCR);  in mtk8250_set_flow_ctrl()
241 		serial_out(up, MTK_UART_ESCAPE_DAT, MTK_UART_ESCAPE_CHAR);  in mtk8250_set_flow_ctrl()
242 		serial_out(up, MTK_UART_ESCAPE_EN, 0x00);  in mtk8250_set_flow_ctrl()
243 		serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);  in mtk8250_set_flow_ctrl()
244 		serial_out(up, UART_EFR, serial_in(up, UART_EFR) &  in mtk8250_set_flow_ctrl()
246 		serial_out(up, UART_LCR, lcr);  in mtk8250_set_flow_ctrl()
247 		mtk8250_disable_intrs(up, MTK_UART_IER_XOFFI |  in mtk8250_set_flow_ctrl()
252 		serial_out(up, MTK_UART_ESCAPE_DAT, MTK_UART_ESCAPE_CHAR);  in mtk8250_set_flow_ctrl()
253 		serial_out(up, MTK_UART_ESCAPE_EN, 0x00);  in mtk8250_set_flow_ctrl()
254 		serial_out(up, UART_MCR, UART_MCR_RTS);  in mtk8250_set_flow_ctrl()
255 		serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);  in mtk8250_set_flow_ctrl()
258 		serial_out(up, UART_EFR, MTK_UART_EFR_HW_FC |  in mtk8250_set_flow_ctrl()
259 			(serial_in(up, UART_EFR) &  in mtk8250_set_flow_ctrl()
262 		serial_out(up, UART_LCR, lcr);  in mtk8250_set_flow_ctrl()
263 		mtk8250_disable_intrs(up, MTK_UART_IER_XOFFI);  in mtk8250_set_flow_ctrl()
264 		mtk8250_enable_intrs(up, MTK_UART_IER_CTSI | MTK_UART_IER_RTSI);  in mtk8250_set_flow_ctrl()
268 		serial_out(up, MTK_UART_ESCAPE_DAT, MTK_UART_ESCAPE_CHAR);  in mtk8250_set_flow_ctrl()
269 		serial_out(up, MTK_UART_ESCAPE_EN, 0x01);  in mtk8250_set_flow_ctrl()
270 		serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);  in mtk8250_set_flow_ctrl()
273 		serial_out(up, UART_EFR, MTK_UART_EFR_XON1_XOFF1 |  in mtk8250_set_flow_ctrl()
274 			(serial_in(up, UART_EFR) &  in mtk8250_set_flow_ctrl()
277 		serial_out(up, UART_XON1, START_CHAR(port->state->port.tty));  in mtk8250_set_flow_ctrl()
278 		serial_out(up, UART_XOFF1, STOP_CHAR(port->state->port.tty));  in mtk8250_set_flow_ctrl()
279 		serial_out(up, UART_LCR, lcr);  in mtk8250_set_flow_ctrl()
280 		mtk8250_disable_intrs(up, MTK_UART_IER_CTSI|MTK_UART_IER_RTSI);  in mtk8250_set_flow_ctrl()
281 		mtk8250_enable_intrs(up, MTK_UART_IER_XOFFI);  in mtk8250_set_flow_ctrl()
298 	struct uart_8250_port *up = up_to_u8250p(port);  in mtk8250_set_termios()  local
304 	if (up->dma) {  in mtk8250_set_termios()
306 			devm_kfree(up->port.dev, up->dma);  in mtk8250_set_termios()
307 			up->dma = NULL;  in mtk8250_set_termios()
309 			mtk8250_dma_enable(up);  in mtk8250_set_termios()
365 	/* set DLAB we have cval saved in up->lcr from the call to the core */  in mtk8250_set_termios()
366 	serial_port_out(port, UART_LCR, up->lcr | UART_LCR_DLAB);  in mtk8250_set_termios()
367 	serial_dl_write(up, quot);  in mtk8250_set_termios()
370 	serial_port_out(port, UART_LCR, up->lcr);  in mtk8250_set_termios()
401 	mtk8250_set_flow_ctrl(up, mode);  in mtk8250_set_termios()
404 		up->port.cons->cflag = termios->c_cflag;  in mtk8250_set_termios()
415 	struct uart_8250_port *up = serial8250_get_port(data->line);  in mtk8250_runtime_suspend()  local
419 		(serial_in(up, MTK_UART_DEBUG0));  in mtk8250_runtime_suspend()