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of: earlycon: Initialize port fields from DT properties

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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 <[email protected]>
Signed-off-by: Peter Hurley <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Peter Hurley 2016-01-16 15:23:43 -08:00 • committed by Greg Kroah-Hartman
commit 088da2a176
3 changed files with 33 additions and 1 deletions
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2
drivers/of/fdt.c
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@ -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;