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of: earlycon: Add options string handling

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Pass-through any options string in the 'stdout-path' property to the
earlycon "driver" setup.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley
2016-01-16 15:23:42 -08:00
committed by Greg Kroah-Hartman
vanhempi 05d961320b
commit 4d118c9a86
3 muutettua tiedostoa jossa 15 lisäystä ja 8 poistoa
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9
drivers/tty/serial/earlycon.c
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@@ -218,7 +218,8 @@ early_param("earlycon", param_setup_earlycon);
#ifdef CONFIG_OF_EARLY_FLATTREE
int __init of_setup_earlycon(unsigned long addr,
const struct earlycon_id *match)
const struct earlycon_id *match,
const char *options)
{
int err;
struct uart_port *port = &early_console_dev.port;
@@ -229,8 +230,12 @@ int __init of_setup_earlycon(unsigned long addr,
port->uartclk = BASE_BAUD * 16;
port->membase = earlycon_map(addr, SZ_4K);
if (options) {
strlcpy(early_console_dev.options, options,
sizeof(early_console_dev.options));
}
earlycon_init(&early_console_dev, match->name);
err = match->setup(&early_console_dev, NULL);
err = match->setup(&early_console_dev, options);
if (err < 0)
return err;
if (!early_console_dev.con->write)