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uart: serial_ns16550: exclude driver data variables under #ifdef

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Not all of the variables defined in the driver data structure are
required. So put some #ifdef around them.

Change-Id: I08a0c02d9e5c6885d9b4d6237446bdb9b98f3bfa
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This commit is contained in:
Daniel Leung 2016-03-03 10:14:49 -08:00 • committed by Gerrit Code Review
commit f8bf86c95f
1 changed files with 7 additions and 1 deletions
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8
drivers/serial/uart_ns16550.c
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@ -208,9 +208,13 @@ struct uart_ns16550_dev_data_t {
uint32_t baud_rate; /**< Baud rate */
uint8_t options; /**< Serial port options */
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
uint8_t iir_cache; /**< cache of IIR since it clears when read */
#endif
#ifdef CONFIG_UART_NS16550_DLF
uint8_t dlf; /**< DLF value */
uint8_t stride; /**< structure stride padding */
#endif
};
static struct uart_driver_api uart_ns16550_driver_api;
@ -295,7 +299,9 @@ static int uart_ns16550_init(struct device *dev)
return DEV_INVALID_OP;
}
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
dev_data->iir_cache = 0;
#endif
old_level = irq_lock();