of: earlycon: Initialize port fields from DT properties

Read the optional "reg-offset", "reg-shift", "reg-io-width" and endianness
properties and initialize the respective struct uart_port field if found.

NB: These bindings are common to several drivers and the values merely
indicate the default value; the registering earlycon setup() method can
simply override the values if required.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley
2016-01-16 15:23:43 -08:00
committed by Greg Kroah-Hartman
parent 4d118c9a86
commit 088da2a176
3 changed files with 33 additions and 1 deletions

View File

@@ -839,7 +839,7 @@ static int __init early_init_dt_scan_chosen_serial(void)
if (addr == OF_BAD_ADDR)
return -ENXIO;
of_setup_earlycon(addr, match, options);
of_setup_earlycon(addr, match, offset, options);
return 0;
}
return -ENODEV;