Prepare for 8250_core.c file split; move shared inline function
to local header file.
Signed-off-by: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx>
---
drivers/tty/serial/8250/8250.h | 18 +++++++++++++++++-
drivers/tty/serial/8250/8250_core.c | 17 -----------------
2 files changed, 17 insertions(+), 18 deletions(-)
diff --git a/drivers/tty/serial/8250/8250.h b/drivers/tty/serial/8250/8250.h
index b008368..89a0457 100644
--- a/drivers/tty/serial/8250/8250.h
+++ b/drivers/tty/serial/8250/8250.h
@@ -21,7 +21,6 @@ struct uart_8250_dma {
/* Filter function */
dma_filter_fn fn;
-
/* Parameter to the filter function */
void *rx_param;
void *tx_param;
@@ -198,3 +197,20 @@ static inline int serial8250_request_dma(struct uart_8250_port *p)
}
static inline void serial8250_release_dma(struct uart_8250_port *p) { }
#endif
+
+static inline int ns16550a_goto_highspeed(struct uart_8250_port *up)
+{
+ unsigned char status;
+
+ status = serial_in(up, 0x04); /* EXCR2 */
+#define PRESL(x) ((x) & 0x30)
+ if (PRESL(status) == 0x10) {
+ /* already in high speed mode */
+ return 0;
+ } else {
+ status &= ~0xB0; /* Disable LOCK, mask out PRESL[01] */
+ status |= 0x10; /* 1.625 divisor for baud_base --> 921600 */
+ serial_out(up, 0x04, status);
+ }
+ return 1;
+}
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index 7910ac0..6b12233 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -903,23 +903,6 @@ static int broken_efr(struct uart_8250_port *up)
return 0;
}
-static inline int ns16550a_goto_highspeed(struct uart_8250_port *up)
-{
- unsigned char status;
-
- status = serial_in(up, 0x04); /* EXCR2 */
-#define PRESL(x) ((x) & 0x30)
- if (PRESL(status) == 0x10) {
- /* already in high speed mode */
- return 0;
- } else {
- status &= ~0xB0; /* Disable LOCK, mask out PRESL[01] */
- status |= 0x10; /* 1.625 divisor for baud_base --> 921600 */
- serial_out(up, 0x04, status);
- }
- return 1;
-}
-
/*
* We know that the chip has FIFOs. Does it have an EFR? The
* EFR is located in the same register position as the IIR and
--
2.3.0
--
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