On 2017?06?22? 15:31, Heiko Stuebner wrote: >> + >> >+/** >> >+ * struct rockchip_hdmi_chip_data - splite the grf setting of kind of chips >> >+ * @lcdsel_grf_reg: grf register offset of lcdc select >> >+ * @lcdsel_big: reg value of selecting vop big for HDMI >> >+ * @lcdsel_lit: reg value of selecting vop little for HDMI >> >+ */ >> >+struct rockchip_hdmi_chip_data { >> >+ u32 lcdsel_grf_reg; > How do you plan on handling the rk3368 (with only one VOP and thus > no selection happening)? I'd just make the above an int, so we could > set it to -1 for that case. (value 0 is after all a valid reg). It's a problem handling on rk3368, using -1 to judge means that we need initial the lcdsel_grf_reg to -1 on rk3368 platform, we need always add a platform data to handle it, seems not good enough. Since the hdmi chip data only use for vop selection, maybe we can judge with checking hdmi->chip_data == NULL for the case. Mark. > > Heiko > > -- ?ark Yao