DC_PAL_DATA
write_dc(par, DC_PAL_DATA, val);
writel(val, par->dc_regs + DC_PAL_DATA);
write_dc(par, DC_PAL_DATA, val);
par->dc_pal[i] = read_dc(par, DC_PAL_DATA);
case DC_PAL_DATA:
write_dc(par, DC_PAL_DATA, par->dc_pal[i]);
case DC_PAL_DATA:
write_dc(par, DC_PAL_DATA, par->pal[i]);
par->pal[i] = read_dc(par, DC_PAL_DATA);