[PATCH] tty/serial: atmel: remove cache when unnecessary

From: Alexandre Belloni
Date: Tue Feb 21 2017 - 07:04:33 EST


struct cache is only used in suspend/resume. Exclude it when PM is not
selected.

Suggested-by: Richard Genoud <richard.genoud@xxxxxxxxx>
Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx>
---
drivers/tty/serial/atmel_serial.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index dcebb28ffbc4..f0d4894267c2 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -175,6 +175,7 @@ struct atmel_uart_port {
unsigned int pending_status;
spinlock_t lock_suspended;

+#ifdef CONFIG_PM
struct {
u32 cr;
u32 mr;
@@ -185,6 +186,7 @@ struct atmel_uart_port {
u32 fmr;
u32 fimr;
} cache;
+#endif

int (*prepare_rx)(struct uart_port *port);
int (*prepare_tx)(struct uart_port *port);
--
2.11.0