adv748x_write
*error = adv748x_write(state, page, reg, value);
ret = adv748x_write(state, regs->page, regs->reg, regs->value);
int adv748x_write(struct adv748x_state *state, u8 page, u8 reg, u8 value);
#define io_write(s, r, v) adv748x_write(s, ADV748X_PAGE_IO, r, v)
#define hdmi_write(s, r, v) adv748x_write(s, ADV748X_PAGE_HDMI, r, v)
#define repeater_write(s, r, v) adv748x_write(s, ADV748X_PAGE_REPEATER, r, v)
#define sdp_write(s, r, v) adv748x_write(s, ADV748X_PAGE_SDP, r, v)
#define cp_write(s, r, v) adv748x_write(s, ADV748X_PAGE_CP, r, v)
#define tx_write(t, r, v) adv748x_write(t->state, t->page, r, v)