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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-07-23 21:47:38 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-09-05 15:19:35 +1000
commitd1cfc0ce5d3196ccd88b9d868bb7cbcab61e0a31 (patch)
tree9fd474a14beb679b2e50776e33aeecae8a8740ff /arch
parent92057a493af4bb56928a762ad0423200b835d995 (diff)
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hvc_vio: Improve registration of udbg backend
The pseries hvterm driver only registers a udbg backend (for xmon and other low level debugging mechanisms) when hvc0 is recognized as the firmware console at boot time, not if it's detected later on, for example because the firmware is using a graphics card. This can make debugging challenging especially under X11, and there's really no good reason for that limitation, so let's hookup udbg whenever hvc0 is detected instead. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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