MXC_ISI_BUF2
mxc_isi_channel_set_outbuf(m2m->pipe, dst_buf->dma_addrs, MXC_ISI_BUF2);
? (status & CHNL_STS_BUF1_ACTIVE ? MXC_ISI_BUF2 : MXC_ISI_BUF1)
: (status & CHNL_STS_BUF1_ACTIVE ? MXC_ISI_BUF1 : MXC_ISI_BUF2);
: MXC_ISI_BUF2;