tty/serial: use uart_console_write in the RISC-V SBL early console

This enables proper NLCR processing.

Suggested-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Andreas Schwab <schwab@suse.de>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>

diff --git a/drivers/tty/serial/earlycon-riscv-sbi.c b/drivers/tty/serial/earlycon-riscv-sbi.c
index e1a551a..ce81523 100644 (file)
--- a/drivers/tty/serial/earlycon-riscv-sbi.c
+++ b/drivers/tty/serial/earlycon-riscv-sbi.c
@@ -10,13 +10,16 @@
 #include <linux/serial_core.h>
 #include <asm/sbi.h>
 
-static void sbi_console_write(struct console *con,
-                             const char *s, unsigned int n)
+static void sbi_putc(struct uart_port *port, int c)
 {
-       int i;
+       sbi_console_putchar(c);
+}
 
-       for (i = 0; i < n; ++i)
-               sbi_console_putchar(s[i]);
+static void sbi_console_write(struct console *con,
+                             const char *s, unsigned n)
+{
+       struct earlycon_device *dev = con->data;
+       uart_console_write(&dev->port, s, n, sbi_putc);
 }
 
 static int __init early_sbi_setup(struct earlycon_device *device,