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serial: 8250_rt288x: Name non-standard divisor latch reg

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Instead of a literal, add proper name for the non-standard divisor
latch register.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230511121029.13128-6-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilpo Järvinen 2023-05-11 15:10:28 +03:00 committed by Greg Kroah-Hartman
parent b334214ea0
commit 33e3b0eb75
1 changed files with 4 additions and 2 deletions
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6
drivers/tty/serial/8250/8250_rt288x.c
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@ -12,6 +12,8 @@
#include "8250.h"
#define RT288X_DL 0x28
#define UART_REG_UNMAPPED -1
/* Au1x00/RT288x UART hardware has a weird register layout */
@ -60,12 +62,12 @@ static void au_serial_out(struct uart_port *p, int offset, int value)
/* Au1x00 haven't got a standard divisor latch */
static u32 au_serial_dl_read(struct uart_8250_port *up)
{
return __raw_readl(up->port.membase + 0x28);
return __raw_readl(up->port.membase + RT288X_DL);
}
static void au_serial_dl_write(struct uart_8250_port *up, u32 value)
{
__raw_writel(value, up->port.membase + 0x28);
__raw_writel(value, up->port.membase + RT288X_DL);
}
int au_platform_setup(struct plat_serial8250_port *p)