264 static void dw8250_quirks(struct uart_port *p, struct dw8250_data *data)  in dw8250_quirks()  argument
280 			data->usr_reg = 0x27;  in dw8250_quirks()
281 			data->skip_autocfg = true;  in dw8250_quirks()
290 		data->uart_16550_compatible = true;  in dw8250_quirks()
297 		data->dma.rx_param = p->dev->parent;  in dw8250_quirks()
298 		data->dma.tx_param = p->dev->parent;  in dw8250_quirks()
299 		data->dma.fn = dw8250_idma_filter;  in dw8250_quirks()
341 	struct dw8250_data *data;  in dw8250_probe()  local
372 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);  in dw8250_probe()
373 	if (!data)  in dw8250_probe()
376 	data->dma.fn = dw8250_fallback_dma_filter;  in dw8250_probe()
377 	data->usr_reg = DW_UART_USR;  in dw8250_probe()
378 	p->private_data = data;  in dw8250_probe()
380 	data->uart_16550_compatible = device_property_read_bool(p->dev,  in dw8250_probe()
396 		data->msr_mask_on |= UART_MSR_DCD;  in dw8250_probe()
397 		data->msr_mask_off |= UART_MSR_DDCD;  in dw8250_probe()
402 		data->msr_mask_on |= UART_MSR_DSR;  in dw8250_probe()
403 		data->msr_mask_off |= UART_MSR_DDSR;  in dw8250_probe()
408 		data->msr_mask_on |= UART_MSR_CTS;  in dw8250_probe()
409 		data->msr_mask_off |= UART_MSR_DCTS;  in dw8250_probe()
414 		data->msr_mask_off |= UART_MSR_RI;  in dw8250_probe()
415 		data->msr_mask_off |= UART_MSR_TERI;  in dw8250_probe()
422 	data->clk = devm_clk_get(&pdev->dev, "baudclk");  in dw8250_probe()
423 	if (IS_ERR(data->clk) && PTR_ERR(data->clk) != -EPROBE_DEFER)  in dw8250_probe()
424 		data->clk = devm_clk_get(&pdev->dev, NULL);  in dw8250_probe()
425 	if (IS_ERR(data->clk) && PTR_ERR(data->clk) == -EPROBE_DEFER)  in dw8250_probe()
427 	if (!IS_ERR_OR_NULL(data->clk)) {  in dw8250_probe()
428 		err = clk_prepare_enable(data->clk);  in dw8250_probe()
433 			p->uartclk = clk_get_rate(data->clk);  in dw8250_probe()
442 	data->pclk = devm_clk_get(&pdev->dev, "apb_pclk");  in dw8250_probe()
443 	if (IS_ERR(data->clk) && PTR_ERR(data->clk) == -EPROBE_DEFER) {  in dw8250_probe()
447 	if (!IS_ERR(data->pclk)) {  in dw8250_probe()
448 		err = clk_prepare_enable(data->pclk);  in dw8250_probe()
455 	data->rst = devm_reset_control_get_optional(&pdev->dev, NULL);  in dw8250_probe()
456 	if (IS_ERR(data->rst) && PTR_ERR(data->rst) == -EPROBE_DEFER) {  in dw8250_probe()
460 	if (!IS_ERR(data->rst))  in dw8250_probe()
461 		reset_control_deassert(data->rst);  in dw8250_probe()
463 	dw8250_quirks(p, data);  in dw8250_probe()
466 	if (data->uart_16550_compatible) {  in dw8250_probe()
471 	if (!data->skip_autocfg)  in dw8250_probe()
476 		data->dma.rxconf.src_maxburst = p->fifosize / 4;  in dw8250_probe()
477 		data->dma.txconf.dst_maxburst = p->fifosize / 4;  in dw8250_probe()
478 		uart.dma = &data->dma;  in dw8250_probe()
481 	data->line = serial8250_register_8250_port(&uart);  in dw8250_probe()
482 	if (data->line < 0) {  in dw8250_probe()
483 		err = data->line;  in dw8250_probe()
487 	platform_set_drvdata(pdev, data);  in dw8250_probe()
495 	if (!IS_ERR(data->rst))  in dw8250_probe()
496 		reset_control_assert(data->rst);  in dw8250_probe()
499 	if (!IS_ERR(data->pclk))  in dw8250_probe()
500 		clk_disable_unprepare(data->pclk);  in dw8250_probe()
503 	if (!IS_ERR(data->clk))  in dw8250_probe()
504 		clk_disable_unprepare(data->clk);  in dw8250_probe()
511 	struct dw8250_data *data = platform_get_drvdata(pdev);  in dw8250_remove()  local
515 	serial8250_unregister_port(data->line);  in dw8250_remove()
517 	if (!IS_ERR(data->rst))  in dw8250_remove()
518 		reset_control_assert(data->rst);  in dw8250_remove()
520 	if (!IS_ERR(data->pclk))  in dw8250_remove()
521 		clk_disable_unprepare(data->pclk);  in dw8250_remove()
523 	if (!IS_ERR(data->clk))  in dw8250_remove()
524 		clk_disable_unprepare(data->clk);  in dw8250_remove()
535 	struct dw8250_data *data = dev_get_drvdata(dev);  in dw8250_suspend()  local
537 	serial8250_suspend_port(data->line);  in dw8250_suspend()
544 	struct dw8250_data *data = dev_get_drvdata(dev);  in dw8250_resume()  local
546 	serial8250_resume_port(data->line);  in dw8250_resume()
555 	struct dw8250_data *data = dev_get_drvdata(dev);  in dw8250_runtime_suspend()  local
557 	if (!IS_ERR(data->clk))  in dw8250_runtime_suspend()
558 		clk_disable_unprepare(data->clk);  in dw8250_runtime_suspend()
560 	if (!IS_ERR(data->pclk))  in dw8250_runtime_suspend()
561 		clk_disable_unprepare(data->pclk);  in dw8250_runtime_suspend()
568 	struct dw8250_data *data = dev_get_drvdata(dev);  in dw8250_runtime_resume()  local
570 	if (!IS_ERR(data->pclk))  in dw8250_runtime_resume()
571 		clk_prepare_enable(data->pclk);  in dw8250_runtime_resume()
573 	if (!IS_ERR(data->clk))  in dw8250_runtime_resume()
574 		clk_prepare_enable(data->clk);  in dw8250_runtime_resume()