serial: 8250_keba: Add ICR defines

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Add defines for better readability of the Indexed Control Register (ICR)
access. In enhanced mode SCR and LSR registers are used for ICR access.
The behavior of these register is different in this mode and that shall
be documented with dedicated defines.

Suggested-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Gerhard Engleder <eg@keba.com>
Link: https://patch.msgid.link/20251216193726.55449-3-gerhard@engleder-embedded.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Gerhard Engleder 2025-12-16 20:37:25 +01:00 • committed by Greg Kroah-Hartman

parent d84400dc43

commit ee086a69c3

1 changed files with 7 additions and 3 deletions

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drivers/tty/serial/8250/8250_keba.c

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