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serial: 8250: create lsr_save_mask

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Allow drivers to alter LSR save mask.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20220624204210.11112-3-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilpo Järvinen 2022-06-24 23:42:06 +03:00 • committed by Greg Kroah-Hartman
parent f8ba5680a5
commit 507bd6fbaa
4 changed files with 7 additions and 2 deletions
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include/linux/serial_8250.h
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@ -120,6 +120,7 @@ struct uart_8250_port {
*/
#define LSR_SAVE_FLAGS UART_LSR_BRK_ERROR_BITS
u16 lsr_saved_flags;
u16 lsr_save_mask;
#define MSR_SAVE_FLAGS UART_MSR_ANY_DELTA
unsigned char msr_saved_flags;