44 	struct tegra_uart *uart;  in tegra_uart_probe()  local
49 	uart = devm_kzalloc(&pdev->dev, sizeof(*uart), GFP_KERNEL);  in tegra_uart_probe()
50 	if (!uart)  in tegra_uart_probe()
89 	uart->rst = devm_reset_control_get_optional_shared(&pdev->dev, NULL);  in tegra_uart_probe()
90 	if (IS_ERR(uart->rst))  in tegra_uart_probe()
91 		return PTR_ERR(uart->rst);  in tegra_uart_probe()
95 		uart->clk = devm_clk_get(&pdev->dev, NULL);  in tegra_uart_probe()
96 		if (IS_ERR(uart->clk)) {  in tegra_uart_probe()
101 		ret = clk_prepare_enable(uart->clk);  in tegra_uart_probe()
105 		port->uartclk = clk_get_rate(uart->clk);  in tegra_uart_probe()
108 	ret = reset_control_deassert(uart->rst);  in tegra_uart_probe()
116 	platform_set_drvdata(pdev, uart);  in tegra_uart_probe()
117 	uart->line = ret;  in tegra_uart_probe()
122 	clk_disable_unprepare(uart->clk);  in tegra_uart_probe()
129 	struct tegra_uart *uart = platform_get_drvdata(pdev);  in tegra_uart_remove()  local
131 	serial8250_unregister_port(uart->line);  in tegra_uart_remove()
132 	reset_control_assert(uart->rst);  in tegra_uart_remove()
133 	clk_disable_unprepare(uart->clk);  in tegra_uart_remove()
141 	struct tegra_uart *uart = dev_get_drvdata(dev);  in tegra_uart_suspend()  local
142 	struct uart_8250_port *port8250 = serial8250_get_port(uart->line);  in tegra_uart_suspend()
145 	serial8250_suspend_port(uart->line);  in tegra_uart_suspend()
148 		clk_disable_unprepare(uart->clk);  in tegra_uart_suspend()
155 	struct tegra_uart *uart = dev_get_drvdata(dev);  in tegra_uart_resume()  local
156 	struct uart_8250_port *port8250 = serial8250_get_port(uart->line);  in tegra_uart_resume()
160 		clk_prepare_enable(uart->clk);  in tegra_uart_resume()
162 	serial8250_resume_port(uart->line);  in tegra_uart_resume()
172 	{ .compatible = "nvidia,tegra20-uart", },
185 		.name = "tegra-uart",