diff options
| author | Neil Armstrong <narmstrong@baylibre.com> | 2021-05-18 09:58:32 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-20 16:11:20 +0200 |
| commit | 27d44e05d7b85d9d4cfe0a3c0663ea49752ece93 (patch) | |
| tree | 33ab3b543fac2ca32fcf80aad90534f8f235c719 /drivers | |
| parent | f985b0b6e1db4d5301379c5207606de915f9c4d0 (diff) | |
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/serial/meson_uart.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c index d7f55031b2cf..efee3935917f 100644 --- a/drivers/tty/serial/meson_uart.c +++ b/drivers/tty/serial/meson_uart.c @@ -715,6 +715,7 @@ static int meson_uart_probe(struct platform_device *pdev) { struct resource *res_mem, *res_irq; struct uart_port *port; + u32 fifosize = 64; /* Default is 64, 128 for EE UART_0 */ int ret = 0; if (pdev->dev.of_node) @@ -742,6 +743,8 @@ static int meson_uart_probe(struct platform_device *pdev) if (!res_irq) return -ENODEV; + of_property_read_u32(pdev->dev.of_node, "fifo-size", &fifosize); + if (meson_ports[pdev->id]) { dev_err(&pdev->dev, "port %d already allocated\n", pdev->id); return -EBUSY; @@ -771,7 +774,7 @@ static int meson_uart_probe(struct platform_device *pdev) port->type = PORT_MESON; port->x_char = 0; port->ops = &meson_uart_ops; - port->fifosize = 64; + port->fifosize = fifosize; meson_ports[pdev->id] = port; platform_set_drvdata(pdev, port); |