46 	struct tegra_uart *uart;  in tegra_uart_probe()  local
51 	uart = devm_kzalloc(&pdev->dev, sizeof(*uart), GFP_KERNEL);  in tegra_uart_probe()
52 	if (!uart)  in tegra_uart_probe()
91 	uart->rst = devm_reset_control_get_optional_shared(&pdev->dev, NULL);  in tegra_uart_probe()
92 	if (IS_ERR(uart->rst))  in tegra_uart_probe()
93 		return PTR_ERR(uart->rst);  in tegra_uart_probe()
97 		uart->clk = devm_clk_get(&pdev->dev, NULL);  in tegra_uart_probe()
98 		if (IS_ERR(uart->clk)) {  in tegra_uart_probe()
103 		ret = clk_prepare_enable(uart->clk);  in tegra_uart_probe()
107 		port->uartclk = clk_get_rate(uart->clk);  in tegra_uart_probe()
110 	ret = reset_control_deassert(uart->rst);  in tegra_uart_probe()
118 	platform_set_drvdata(pdev, uart);  in tegra_uart_probe()
119 	uart->line = ret;  in tegra_uart_probe()
124 	reset_control_assert(uart->rst);  in tegra_uart_probe()
126 	clk_disable_unprepare(uart->clk);  in tegra_uart_probe()
133 	struct tegra_uart *uart = platform_get_drvdata(pdev);  in tegra_uart_remove()  local
135 	serial8250_unregister_port(uart->line);  in tegra_uart_remove()
136 	reset_control_assert(uart->rst);  in tegra_uart_remove()
137 	clk_disable_unprepare(uart->clk);  in tegra_uart_remove()
145 	struct tegra_uart *uart = dev_get_drvdata(dev);  in tegra_uart_suspend()  local
146 	struct uart_8250_port *port8250 = serial8250_get_port(uart->line);  in tegra_uart_suspend()
149 	serial8250_suspend_port(uart->line);  in tegra_uart_suspend()
152 		clk_disable_unprepare(uart->clk);  in tegra_uart_suspend()
159 	struct tegra_uart *uart = dev_get_drvdata(dev);  in tegra_uart_resume()  local
160 	struct uart_8250_port *port8250 = serial8250_get_port(uart->line);  in tegra_uart_resume()
164 		clk_prepare_enable(uart->clk);  in tegra_uart_resume()
166 	serial8250_resume_port(uart->line);  in tegra_uart_resume()