earlycon: initialise baud field of earlycon device structure
authorEugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Mon, 21 Aug 2017 16:22:13 +0000 (19:22 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 31 Aug 2017 16:47:31 +0000 (18:47 +0200)
commit31cb9a8575ca04f47ea113434d4782b695638b62
tree0e59adc66bebe835aaf75bc713cb8a42546d9141
parent6ec6e80d11783c00bb96794688d0d51d0481c8d3
earlycon: initialise baud field of earlycon device structure

For now baud field of earlycon structure device is't initialised at all
in of_setup_earlycon (in oppositŠµ to register_earlycon).

So when I use stdout-path to point earlycon device
(like stdout-path = &serial or stdout-path = "serial:115200n8")
baud field of earlycon device structure remains uninitialised and
earlycon initialization is not performed correctly as
of_setup_earlycon is used.
When pass all arguments via bootargs
(like bootargs = "earlycon=uart8250,mmio32,0xf0005000,115200n8")
initialization is performed correctly as register_earlycon is used.

So initialise baud field of earlycon device structure by value of
"current-speed" property from device tree or from options
(if they exist) when we use of_setup_earlycon

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/earlycon.c