host1x_channel_get
context->channel = host1x_channel_get(gr2d->channel);
context->channel = host1x_channel_get(gr3d->channel);
context->channel = host1x_channel_get(nvdec->channel);
context->channel = host1x_channel_get(client->shared_channel);
context->channel = host1x_channel_get(vic->channel);
EXPORT_SYMBOL(host1x_channel_get);
struct host1x_channel *host1x_channel_get(struct host1x_channel *channel);