Hi Chris Looks good for me except some tiny issues. On 2016?01?06? 12:03, Chris Zhong wrote: > +struct dw_mipi_dsi { > + struct drm_encoder encoder; > + struct drm_connector connector; > + struct mipi_dsi_host dsi_host; > + struct drm_panel *panel; > + struct device *dev; > + struct regmap *grf_regmap; > + void __iomem *base; > + > + struct clk *pllref_clk; > + struct clk *pclk; > + > + unsigned int lane_mbps; /* per lane */ > + u32 channel; > + u32 lanes; > + u32 format; > + u16 input_div; > + u16 feedback_div; > + struct drm_display_mode *mode; > + > + const struct dw_mipi_dsi_plat_data *pdata; > + remove this blank line. > +}; > + [...] > +static void dw_mipi_dsi_encoder_mode_set(struct drm_encoder *encoder, > + struct drm_display_mode *mode, > + struct drm_display_mode *adjusted_mode) > +{ > + struct dw_mipi_dsi *dsi = encoder_to_dsi(encoder); > + int ret; > + > + dsi->mode = adjusted_mode; > + > + ret = dw_mipi_dsi_get_lane_bps(dsi); > + if (ret < 0) > + return; > + > + if (clk_prepare_enable(dsi->pclk)) { > + dev_err(dsi->dev, "%s: Failed to enable pclk\n", __func__); > + return; > + } > + > + dw_mipi_dsi_init(dsi); > + dw_mipi_dsi_dpi_config(dsi, mode); > + dw_mipi_dsi_packet_handler_config(dsi); > + dw_mipi_dsi_video_mode_config(dsi); > + dw_mipi_dsi_video_packet_config(dsi, mode); > + dw_mipi_dsi_command_mode_config(dsi); > + dw_mipi_dsi_line_timer_config(dsi); > + dw_mipi_dsi_vertical_timing_config(dsi); > + dw_mipi_dsi_dphy_timing_config(dsi); > + dw_mipi_dsi_dphy_interface_config(dsi); > + dw_mipi_dsi_clear_err(dsi); > + if (drm_panel_prepare(dsi->panel)) { > + dev_err(dsi->dev, "failed to prepare panel\n"); Don't forget doing clk_disable_unprepare when run into error path. > + return; > + } > + clk_disable_unprepare(dsi->pclk); > +} > + -- ?ark Yao