WM8785_HPFL
data->wm8785_regs[2] = WM8785_HPFR | WM8785_HPFL;
reg = data->wm8785_regs[WM8785_R2] & ~(WM8785_HPFR | WM8785_HPFL);
reg |= WM8785_HPFR | WM8785_HPFL;