S1DREG_COM_DISP_MODE
u8 mode = s1d13xxxfb_readreg(par, S1DREG_COM_DISP_MODE);
s1d13xxxfb_writereg(par, S1DREG_COM_DISP_MODE, mode);
u8 mode = s1d13xxxfb_readreg(par, S1DREG_COM_DISP_MODE);
s1d13xxxfb_writereg(par, S1DREG_COM_DISP_MODE, mode);
par->display = s1d13xxxfb_readreg(par, S1DREG_COM_DISP_MODE);
s1d13xxxfb_writereg(par, S1DREG_COM_DISP_MODE, 0x00);