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tty/serial: atmel: remove cache when unnecessary

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

Suggested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexandre Belloni 2017-02-21 13:03:57 +01:00 committed by Greg Kroah-Hartman
parent 432f974801
commit 488ae82d97
1 changed files with 2 additions and 0 deletions
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2
drivers/tty/serial/atmel_serial.c
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@ -176,6 +176,7 @@ struct atmel_uart_port {
unsigned int pending_status;
spinlock_t lock_suspended;
#ifdef CONFIG_PM
struct {
u32 cr;
u32 mr;
@ -186,6 +187,7 @@ struct atmel_uart_port {
u32 fmr;
u32 fimr;
} cache;
#endif
int (*prepare_rx)(struct uart_port *port);
int (*prepare_tx)(struct uart_port *port);