tw9910_mask_set
ret = tw9910_mask_set(client, HSLOWCTL, 0x77,
tw9910_mask_set(client, ACNTL1, SRESET, SRESET);
ret = tw9910_mask_set(client, ACNTL1, ACNTL1_PDN_MASK, acntl1);
return tw9910_mask_set(client, ACNTL2, ACNTL2_PDN_MASK, acntl2);
ret = tw9910_mask_set(client, OPFORM, OEN_TRI_SEL_MASK, val);
ret = tw9910_mask_set(client, VVBI, 0x10, 0x10);
ret = tw9910_mask_set(client, VVBI, 0x10, 0x00);
ret = tw9910_mask_set(client, OPFORM, LEN, val);
ret = tw9910_mask_set(client, VBICNTL, RTSEL_MASK, val);