| Message ID | 20210315083459.359773-3-narmstrong@baylibre.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | tty: serial: meson: add amlogic,uart-fifosize property | expand |
Neil Armstrong <narmstrong@baylibre.com> writes: > 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. > > Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com>
On Mon, Mar 15, 2021 at 9:37 AM Neil Armstrong <narmstrong@baylibre.com> wrote: > > 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. > > Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c index 69eeef9edfa5..7244b12aefab 100644 --- a/drivers/tty/serial/meson_uart.c +++ b/drivers/tty/serial/meson_uart.c @@ -717,6 +717,7 @@ 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; int id = -1; @@ -743,6 +744,8 @@ static int meson_uart_probe(struct platform_device *pdev) if (!res_irq) return -ENODEV; + of_property_read_u32(pdev->dev.of_node, "amlogic,uart-fifosize", &fifosize); + if (meson_ports[pdev->id]) { dev_err(&pdev->dev, "port %d already allocated\n", pdev->id); return -EBUSY; @@ -772,7 +775,7 @@ 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);
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. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> --- drivers/tty/serial/meson_uart.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)