FIELD_GET() can do the job smarter and more readable. We don't even need
ASCFSTAT_TXFREEOFF. So switch to the former and remove the latter.
Suggested-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
drivers/tty/serial/lantiq.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/tty/serial/lantiq.c b/drivers/tty/serial/lantiq.c
index ba9739af30ed..c892f3c7d1ab 100644
--- a/drivers/tty/serial/lantiq.c
+++ b/drivers/tty/serial/lantiq.c
@@ -8,6 +8,7 @@
* Copyright (C) 2010 Thomas Langer, <thomas.langer@xxxxxxxxxx>
*/
+#include <linux/bitfield.h>
#include <linux/clk.h>
#include <linux/console.h>
#include <linux/device.h>
@@ -93,7 +94,6 @@
#define ASCFSTAT_RXFFLMASK 0x003F
#define ASCFSTAT_TXFFLMASK 0x3F00
#define ASCFSTAT_TXFREEMASK 0x3F000000
-#define ASCFSTAT_TXFREEOFF 24
static void lqasc_tx_chars(struct uart_port *port);
static struct ltq_uart_port *lqasc_port[MAXPORTS];
@@ -143,7 +143,7 @@ static bool lqasc_tx_ready(struct uart_port *port)
{
u32 fstat = __raw_readl(port->membase + LTQ_ASC_FSTAT);
- return (fstat & ASCFSTAT_TXFREEMASK) >> ASCFSTAT_TXFREEOFF;
+ return FIELD_GET(ASCFSTAT_TXFREEMASK, fstat);
}
static void
--
2.37.3
