/* function : de_gsu_enable(unsigned int sel, unsigned int chno, unsigned int en) description : enable/disable gsu parameters : sel <rtmx select> chno <overlay select> en <enable: 0-disable; 1-enable> return : success  */
int de_gsu_enable(unsigned int sel, unsigned int chno, unsigned int en)
/* function : de_gsu_enable(unsigned int sel, unsigned int chno, unsigned int en) description : enable/disable gsu parameters : sel <rtmx select> chno <overlay select> en <enable: 0-disable; 1-enable> return : success  */
int de_gsu_enable(unsigned int sel, unsigned int chno, unsigned int en)
{
    gsu_dev[sel][chno - VI_CHN_NUM]->ctrl.bits.en = en;
    gsu_glb_block[sel][chno - VI_CHN_NUM].dirty = 1;
    return 0;
}