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()
118 	up->port.icount.rx += copied;  in mtk8250_dma_rx_complete()
122 	mtk8250_rx_dma(up);  in mtk8250_dma_rx_complete()
125 static void mtk8250_rx_dma(struct uart_8250_port *up)  in mtk8250_rx_dma()  argument
127 	struct uart_8250_dma *dma = up->dma;  in mtk8250_rx_dma()
139 	desc->callback_param = up;  in mtk8250_rx_dma()
146 static void mtk8250_dma_enable(struct uart_8250_port *up)  in mtk8250_dma_enable()  argument
148 	struct uart_8250_dma *dma = up->dma;  in mtk8250_dma_enable()
149 	struct mtk8250_data *data = up->port.private_data;  in mtk8250_dma_enable()
150 	int lcr = serial_in(up, UART_LCR);  in mtk8250_dma_enable()
161 	serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR |  in mtk8250_dma_enable()
163 	serial_out(up, MTK_UART_DMA_EN,  in mtk8250_dma_enable()
166 	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);  in mtk8250_dma_enable()
167 	serial_out(up, UART_EFR, UART_EFR_ECB);  in mtk8250_dma_enable()
168 	serial_out(up, UART_LCR, lcr);  in mtk8250_dma_enable()
177 	mtk8250_rx_dma(up);  in mtk8250_dma_enable()
184 	struct uart_8250_port *up = up_to_u8250p(port);  in mtk8250_startup()  local
189 		up->dma = NULL;  in mtk8250_startup()
191 	if (up->dma) {  in mtk8250_startup()
204 	struct uart_8250_port *up = up_to_u8250p(port);  in mtk8250_shutdown()  local
207 	if (up->dma)  in mtk8250_shutdown()
214 static void mtk8250_disable_intrs(struct uart_8250_port *up, int mask)  in mtk8250_disable_intrs()  argument
216 	serial_out(up, UART_IER, serial_in(up, UART_IER) & (~mask));  in mtk8250_disable_intrs()
219 static void mtk8250_enable_intrs(struct uart_8250_port *up, int mask)  in mtk8250_enable_intrs()  argument
221 	serial_out(up, UART_IER, serial_in(up, UART_IER) | mask);  in mtk8250_enable_intrs()
224 static void mtk8250_set_flow_ctrl(struct uart_8250_port *up, int mode)  in mtk8250_set_flow_ctrl()  argument
226 	struct uart_port *port = &up->port;  in mtk8250_set_flow_ctrl()
227 	int lcr = serial_in(up, UART_LCR);  in mtk8250_set_flow_ctrl()
229 	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);  in mtk8250_set_flow_ctrl()
230 	serial_out(up, UART_EFR, UART_EFR_ECB);  in mtk8250_set_flow_ctrl()
231 	serial_out(up, UART_LCR, lcr);  in mtk8250_set_flow_ctrl()
232 	lcr = serial_in(up, UART_LCR);  in mtk8250_set_flow_ctrl()
236 		serial_out(up, MTK_UART_ESCAPE_DAT, MTK_UART_ESCAPE_CHAR);  in mtk8250_set_flow_ctrl()
237 		serial_out(up, MTK_UART_ESCAPE_EN, 0x00);  in mtk8250_set_flow_ctrl()
238 		serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);  in mtk8250_set_flow_ctrl()
239 		serial_out(up, UART_EFR, serial_in(up, UART_EFR) &  in mtk8250_set_flow_ctrl()
241 		serial_out(up, UART_LCR, lcr);  in mtk8250_set_flow_ctrl()
242 		mtk8250_disable_intrs(up, MTK_UART_IER_XOFFI |  in mtk8250_set_flow_ctrl()
247 		serial_out(up, MTK_UART_ESCAPE_DAT, MTK_UART_ESCAPE_CHAR);  in mtk8250_set_flow_ctrl()
248 		serial_out(up, MTK_UART_ESCAPE_EN, 0x00);  in mtk8250_set_flow_ctrl()
249 		serial_out(up, UART_MCR, UART_MCR_RTS);  in mtk8250_set_flow_ctrl()
250 		serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);  in mtk8250_set_flow_ctrl()
253 		serial_out(up, UART_EFR, MTK_UART_EFR_HW_FC |  in mtk8250_set_flow_ctrl()
254 			(serial_in(up, UART_EFR) &  in mtk8250_set_flow_ctrl()
257 		serial_out(up, UART_LCR, lcr);  in mtk8250_set_flow_ctrl()
258 		mtk8250_disable_intrs(up, MTK_UART_IER_XOFFI);  in mtk8250_set_flow_ctrl()
259 		mtk8250_enable_intrs(up, MTK_UART_IER_CTSI | MTK_UART_IER_RTSI);  in mtk8250_set_flow_ctrl()
263 		serial_out(up, MTK_UART_ESCAPE_DAT, MTK_UART_ESCAPE_CHAR);  in mtk8250_set_flow_ctrl()
264 		serial_out(up, MTK_UART_ESCAPE_EN, 0x01);  in mtk8250_set_flow_ctrl()
265 		serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);  in mtk8250_set_flow_ctrl()
268 		serial_out(up, UART_EFR, MTK_UART_EFR_XON1_XOFF1 |  in mtk8250_set_flow_ctrl()
269 			(serial_in(up, UART_EFR) &  in mtk8250_set_flow_ctrl()
272 		serial_out(up, UART_XON1, START_CHAR(port->state->port.tty));  in mtk8250_set_flow_ctrl()
273 		serial_out(up, UART_XOFF1, STOP_CHAR(port->state->port.tty));  in mtk8250_set_flow_ctrl()
274 		serial_out(up, UART_LCR, lcr);  in mtk8250_set_flow_ctrl()
275 		mtk8250_disable_intrs(up, MTK_UART_IER_CTSI|MTK_UART_IER_RTSI);  in mtk8250_set_flow_ctrl()
276 		mtk8250_enable_intrs(up, MTK_UART_IER_XOFFI);  in mtk8250_set_flow_ctrl()
293 	struct uart_8250_port *up = up_to_u8250p(port);  in mtk8250_set_termios()  local
299 	if (up->dma) {  in mtk8250_set_termios()
301 			devm_kfree(up->port.dev, up->dma);  in mtk8250_set_termios()
302 			up->dma = NULL;  in mtk8250_set_termios()
304 			mtk8250_dma_enable(up);  in mtk8250_set_termios()
361 	serial_port_out(port, UART_LCR, up->lcr | UART_LCR_DLAB);  in mtk8250_set_termios()
362 	serial_dl_write(up, quot);  in mtk8250_set_termios()
365 	serial_port_out(port, UART_LCR, up->lcr);  in mtk8250_set_termios()
396 	mtk8250_set_flow_ctrl(up, mode);  in mtk8250_set_termios()
399 		up->port.cons->cflag = termios->c_cflag;  in mtk8250_set_termios()
410 	struct uart_8250_port *up = serial8250_get_port(data->line);  in mtk8250_runtime_suspend()  local
414 		(serial_in(up, MTK_UART_DEBUG0));  in mtk8250_runtime_suspend()