On Thu, Dec 10, 2015 at 06:11:38PM +0530, Archit Taneja wrote: > We don't check whether a previously registered mipi_dsi_device under the > same host shares the same virtual channel. > > Before registering, check if any of the registered devices doesn't > already have the same virtual channel. > > This wasn't crucial when all the devices under a host were populated via > DT. Now that we also support creating devices manually, we could end up > in a situation where a driver tries to create a device with a virtual > channel already taken by a device populated in DT. > > Reviewed-by: Andrzej Hajda <a.hajda@xxxxxxxxxxx> > Signed-off-by: Archit Taneja <architt@xxxxxxxxxxxxxx> > --- > drivers/gpu/drm/drm_mipi_dsi.c | 26 ++++++++++++++++++++++++-- > 1 file changed, 24 insertions(+), 2 deletions(-) I don't think this is necessary. The device name will be composed of the host's name, a '.' and the virtual channel ID, and the device core will refuse to create two devices with the same name. Thierry
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