RSTV6110_TUNING2
divider = (priv->regs[RSTV6110_TUNING2] & 0x0f) << 8;
nbsteps = (priv->regs[RSTV6110_TUNING2] >> 6) & 3;
psd2 = (priv->regs[RSTV6110_TUNING2] >> 4) & 1;
priv->regs[RSTV6110_TUNING2] &= ~(1 << 4);
priv->regs[RSTV6110_TUNING2] |= (p << 4);
priv->regs[RSTV6110_TUNING2] &= ~(1 << 5);
priv->regs[RSTV6110_TUNING2] |= (presc << 5);
priv->regs[RSTV6110_TUNING2] &= ~(3 << 6);
priv->regs[RSTV6110_TUNING2] |= (((r_div_opt) & 3) << 6);
priv->regs[RSTV6110_TUNING2] &= ~0x0f;
priv->regs[RSTV6110_TUNING2] |= (((divider) >> 8) & 0x0f);