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authorMiodrag Dinic <miodrag.dinic@imgtec.com>2017-08-29 16:53:20 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-08-31 19:58:45 +0300
commit3840ed9548f778717aaab5eab744da798c3ea055 (patch)
tree322458246a1fa3351a5d4331e1102bccbffe5aad /drivers/tty/pty.c
parent7157d2be23da9f8860c69e2b79184a4e02701dad (diff)
downloadlinux-3840ed9548f778717aaab5eab744da798c3ea055.tar.xz
tty: goldfish: Implement support for kernel 'earlycon' parameter
Add early console functionality to the Goldfish tty driver. When 'earlycon' kernel command line parameter is used with no options, the early console is determined by the 'stdout-path' property in device tree's 'chosen' node. This is illustrated in the following device tree source example: Device tree example: chosen { stdout-path = "/goldfish_tty@1f004000"; }; goldfish_tty@1f004000 { interrupts = <0xc>; reg = <0x1f004000 0x0 0x1000>; compatible = "google,goldfish-tty"; }; Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com> Signed-off-by: Goran Ferenc <goran.ferenc@imgtec.com> Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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