VC_CMD
r = _dsi_send_nop(dsi, VC_CMD, dsi->dsidev->channel);
REG_FLD_MOD(dsi, DSI_VC_CTRL(VC_CMD), 0, 9, 9); /* LP */
REG_FLD_MOD(dsi, DSI_VC_CTRL(VC_CMD), 0, 1, 1); /* SOURCE_L4 */
dsi->vc[VC_CMD].source = DSI_VC_SOURCE_L4;
dsi_vc_enable(dsi, VC_CMD, 1);
dsi_vc_send_null(dsi, VC_CMD, dsi->dsidev->channel);
int vc = VC_CMD;