static int exit_dsr_locked(struct mdfld_dsi_config *dsi_config) { int err = 0; struct drm_device *dev; if (!dsi_config) return -EINVAL; dev = dsi_config->dev; err = __dbi_power_on(dsi_config); DC_MRFLD_onPowerOn(dsi_config->pipe); return err; }
static int exit_dsr_locked(struct mdfld_dsi_config *dsi_config) { int err = 0; struct drm_device *dev; struct mdfld_dsi_pkg_sender *sender; if (!dsi_config) return -EINVAL; sender = mdfld_dsi_get_pkg_sender(dsi_config); if (!sender) { DRM_ERROR("Failed to get dsi sender\n"); return -EINVAL; } dev = dsi_config->dev; err = __dbi_power_on(dsi_config); if (!err) /*enable TE, will need it in panel power on*/ mdfld_enable_te(dev, dsi_config->pipe); mdfld_dsi_status_check(sender); return err; }
/** * Power on sequence for command mode MIPI panel. * NOTE: do NOT modify this function */ static int __dbi_panel_power_on(struct mdfld_dsi_config *dsi_config, struct panel_funcs *p_funcs) { struct mdfld_dsi_hw_registers *regs; struct mdfld_dsi_hw_context *ctx; struct drm_psb_private *dev_priv; struct drm_device *dev; int reset_count = 10; int err = 0; struct mdfld_dsi_pkg_sender *sender = mdfld_dsi_get_pkg_sender(dsi_config); struct mdfld_dbi_dsr_info *dsr_info; struct mdfld_dsi_dbi_output **dbi_outputs; struct mdfld_dsi_dbi_output *dbi_output; if (!sender) { DRM_ERROR("pkg sender is NULL\n"); return -EINVAL; } PSB_DEBUG_ENTRY("\n"); if (!dsi_config) return -EINVAL; regs = &dsi_config->regs; ctx = &dsi_config->dsi_hw_context; dev = dsi_config->dev; dev_priv = dev->dev_private; mdfld_dsi_dsr_forbid_locked(dsi_config); reset_recovery: --reset_count; err = 0; /*after entering dstb mode, need reset*/ if (p_funcs && p_funcs->exit_deep_standby) p_funcs->exit_deep_standby(dsi_config); if (__dbi_power_on(dsi_config)) { DRM_ERROR("Failed to init display controller!\n"); err = -EAGAIN; goto power_on_err; } /** * Different panel may have different ways to have * drvIC initialized. Support it! */ if (p_funcs && p_funcs->drv_ic_init) { if (p_funcs->drv_ic_init(dsi_config)) { DRM_ERROR("Failed to init dsi controller!\n"); err = -EAGAIN; goto power_on_err; } } /* Issue "write_mem_start" DSI command during power on. */ dsr_info = dev_priv->dbi_dsr_info; dbi_outputs = dsr_info->dbi_outputs; dbi_output = dsi_config->pipe ? dbi_outputs[1] : dbi_outputs[0]; if (!IS_ANN_A0(dev)) intel_dsi_dbi_update_fb(dbi_output); /** * Different panel may have different ways to have * panel turned on. Support it! */ if (p_funcs && p_funcs->power_on) if (p_funcs->power_on(dsi_config)) { DRM_ERROR("Failed to power on panel\n"); err = -EAGAIN; goto power_on_err; } if (p_funcs && p_funcs->set_brightness) if (p_funcs->set_brightness(dsi_config, ctx->lastbrightnesslevel)) DRM_ERROR("Failed to set panel brightness\n"); /*wait for all FIFOs empty*/ mdfld_dsi_wait_for_fifos_empty(sender); if (is_dual_dsi(dev)) { sender->work_for_slave_panel = true; mdfld_dsi_wait_for_fifos_empty(sender); sender->work_for_slave_panel = false; } if (IS_ANN_A0(dev)) intel_dsi_dbi_update_fb(dbi_output); power_on_err: if (err && reset_count) { DRM_ERROR("Failed to init panel, try reset it again!\n"); goto reset_recovery; } mdfld_dsi_dsr_allow_locked(dsi_config); return err; }