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serial: max310x: Add the loopback mode support

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This patch replaces loopback mode support from platform data to
dynamic setup with TIOCMSET ioctl.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexander Shiyan 2014-02-07 18:16:07 +04:00 • committed by Greg Kroah-Hartman
commit e7b8a3ceff
2 changed files with 18 additions and 8 deletions
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include/linux/platform_data/max310x.h
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@ -46,7 +46,6 @@ struct max310x_pdata {
#define MAX310X_EXT_CLK (0x00000001) /* External clock enable */
/* Flags global to UART port */
const u8 uart_flags[MAX310X_MAX_UARTS];
#define MAX310X_LOOPBACK (0x00000001) /* Loopback mode enable */
#define MAX310X_ECHO_SUPRESS (0x00000002) /* Enable echo supress */
#define MAX310X_AUTO_DIR_CTRL (0x00000004) /* Enable Auto direction
* control (RS-485)