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tty: serial: meson: retrieve port FIFO size from DT
Now the DT bindings has a property to get the FIFO size for a particular port, retrieve it and use to setup the FIFO interrupts threshold. Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://lore.kernel.org/r/20210518075833.3736038-3-narmstrong@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -715,6 +715,7 @@ static int meson_uart_probe(struct platform_device *pdev)
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{
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struct resource *res_mem, *res_irq;
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struct uart_port *port;
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u32 fifosize = 64; /* Default is 64, 128 for EE UART_0 */
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int ret = 0;
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if (pdev->dev.of_node)
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@ -742,6 +743,8 @@ static int meson_uart_probe(struct platform_device *pdev)
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if (!res_irq)
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return -ENODEV;
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of_property_read_u32(pdev->dev.of_node, "fifo-size", &fifosize);
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if (meson_ports[pdev->id]) {
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dev_err(&pdev->dev, "port %d already allocated\n", pdev->id);
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return -EBUSY;
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@ -771,7 +774,7 @@ static int meson_uart_probe(struct platform_device *pdev)
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port->type = PORT_MESON;
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port->x_char = 0;
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port->ops = &meson_uart_ops;
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port->fifosize = 64;
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port->fifosize = fifosize;
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meson_ports[pdev->id] = port;
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platform_set_drvdata(pdev, port);
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