diff options
Diffstat (limited to 'drivers/firmware/pcdp.c')
| -rw-r--r-- | drivers/firmware/pcdp.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/firmware/pcdp.c b/drivers/firmware/pcdp.c index 6d5df6c2efa..839b44a7e08 100644 --- a/drivers/firmware/pcdp.c +++ b/drivers/firmware/pcdp.c @@ -11,6 +11,7 @@ * published by the Free Software Foundation. */ +#include <linux/config.h> #include <linux/acpi.h> #include <linux/console.h> #include <linux/efi.h> @@ -22,12 +23,15 @@ setup_serial_console(struct pcdp_uart *uart) { #ifdef CONFIG_SERIAL_8250_CONSOLE int mmio; - static char options[64]; + static char options[64], *p = options; mmio = (uart->addr.address_space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY); - snprintf(options, sizeof(options), "console=uart,%s,0x%lx,%lun%d", - mmio ? "mmio" : "io", uart->addr.address, uart->baud, - uart->bits ? uart->bits : 8); + p += sprintf(p, "console=uart,%s,0x%lx", + mmio ? "mmio" : "io", uart->addr.address); + if (uart->baud) + p += sprintf(p, ",%lu", uart->baud); + if (uart->bits) + p += sprintf(p, "n%d", uart->bits); return early_serial_console_init(options); #else |