tty: serial: qcom_geni_serial: IRQ cleanup (3e4aaea7) · Commits · 戴 / test

drivers/tty/serial/qcom_geni_serial.c

+14 −10

Original line number	Diff line number	Diff line
		@@ -9,6 +9,7 @@
		#include <linux/console.h>
		#include <linux/io.h>
		#include <linux/iopoll.h>
		#include <linux/irq.h>
		#include <linux/module.h>
		#include <linux/of.h>
		#include <linux/of_device.h>
		@@ -830,7 +831,7 @@ static void qcom_geni_serial_shutdown(struct uart_port *uport)
		if (uart_console(uport))
		console_stop(uport->cons);

		free_irq(uport->irq, uport);
		disable_irq(uport->irq);
		spin_lock_irqsave(&uport->lock, flags);
		qcom_geni_serial_stop_tx(uport);
		qcom_geni_serial_stop_rx(uport);
		@@ -890,21 +891,14 @@ static int qcom_geni_serial_startup(struct uart_port *uport)
		int ret;
		struct qcom_geni_serial_port *port = to_dev_port(uport, uport);

		scnprintf(port->name, sizeof(port->name),
		"qcom_serial_%s%d",
		(uart_console(uport) ? "console" : "uart"), uport->line);

		if (!port->setup) {
		ret = qcom_geni_serial_port_setup(uport);
		if (ret)
		return ret;
		}
		enable_irq(uport->irq);

		ret = request_irq(uport->irq, qcom_geni_serial_isr, IRQF_TRIGGER_HIGH,
		port->name, uport);
		if (ret)
		dev_err(uport->dev, "Failed to get IRQ ret %d\n", ret);
		return ret;
		return 0;
		}

		static unsigned long get_clk_cfg(unsigned long clk_freq)
		@@ -1297,11 +1291,21 @@ static int qcom_geni_serial_probe(struct platform_device *pdev)
		port->rx_fifo_depth = DEF_FIFO_DEPTH_WORDS;
		port->tx_fifo_width = DEF_FIFO_WIDTH_BITS;

		scnprintf(port->name, sizeof(port->name), "qcom_geni_serial_%s%d",
		(uart_console(uport) ? "console" : "uart"), uport->line);
		irq = platform_get_irq(pdev, 0);
		if (irq < 0)
		return irq;
		uport->irq = irq;

		irq_set_status_flags(uport->irq, IRQ_NOAUTOEN);
		ret = devm_request_irq(uport->dev, uport->irq, qcom_geni_serial_isr,
		IRQF_TRIGGER_HIGH, port->name, uport);
		if (ret) {
		dev_err(uport->dev, "Failed to get IRQ ret %d\n", ret);
		return ret;
		}

		uport->private_data = drv;
		platform_set_drvdata(pdev, port);
		port->handle_rx = console ? handle_rx_console : handle_rx_uart;

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