1 /* 2 * Copyright (c) 2014-2015, The Linux Foundation. All rights reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 and 6 * only version 2 as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 */ 13 14 #ifndef __EDP_CONNECTOR_H__ 15 #define __EDP_CONNECTOR_H__ 16 17 #include <linux/i2c.h> 18 #include <linux/interrupt.h> 19 #include <linux/kernel.h> 20 #include <linux/platform_device.h> 21 #include <drm/drm_crtc.h> 22 #include <drm/drm_dp_helper.h> 23 24 #include "msm_drv.h" 25 26 #define edp_read(offset) msm_readl((offset)) 27 #define edp_write(offset, data) msm_writel((data), (offset)) 28 29 struct edp_ctrl; 30 struct edp_aux; 31 struct edp_phy; 32 33 struct msm_edp { 34 struct drm_device *dev; 35 struct platform_device *pdev; 36 37 struct drm_connector *connector; 38 struct drm_bridge *bridge; 39 40 /* the encoder we are hooked to (outside of eDP block) */ 41 struct drm_encoder *encoder; 42 43 struct edp_ctrl *ctrl; 44 45 int irq; 46 }; 47 48 /* eDP bridge */ 49 struct drm_bridge *msm_edp_bridge_init(struct msm_edp *edp); 50 void edp_bridge_destroy(struct drm_bridge *bridge); 51 52 /* eDP connector */ 53 struct drm_connector *msm_edp_connector_init(struct msm_edp *edp); 54 55 /* AUX */ 56 void *msm_edp_aux_init(struct device *dev, void __iomem *regbase, 57 struct drm_dp_aux **drm_aux); 58 void msm_edp_aux_destroy(struct device *dev, struct edp_aux *aux); 59 irqreturn_t msm_edp_aux_irq(struct edp_aux *aux, u32 isr); 60 void msm_edp_aux_ctrl(struct edp_aux *aux, int enable); 61 62 /* Phy */ 63 bool msm_edp_phy_ready(struct edp_phy *phy); 64 void msm_edp_phy_ctrl(struct edp_phy *phy, int enable); 65 void msm_edp_phy_vm_pe_init(struct edp_phy *phy); 66 void msm_edp_phy_vm_pe_cfg(struct edp_phy *phy, u32 v0, u32 v1); 67 void msm_edp_phy_lane_power_ctrl(struct edp_phy *phy, bool up, u32 max_lane); 68 void *msm_edp_phy_init(struct device *dev, void __iomem *regbase); 69 70 /* Ctrl */ 71 irqreturn_t msm_edp_ctrl_irq(struct edp_ctrl *ctrl); 72 void msm_edp_ctrl_power(struct edp_ctrl *ctrl, bool on); 73 int msm_edp_ctrl_init(struct msm_edp *edp); 74 void msm_edp_ctrl_destroy(struct edp_ctrl *ctrl); 75 bool msm_edp_ctrl_panel_connected(struct edp_ctrl *ctrl); 76 int msm_edp_ctrl_get_panel_info(struct edp_ctrl *ctrl, 77 struct drm_connector *connector, struct edid **edid); 78 int msm_edp_ctrl_timing_cfg(struct edp_ctrl *ctrl, 79 const struct drm_display_mode *mode, 80 const struct drm_display_info *info); 81 /* @pixel_rate is in kHz */ 82 bool msm_edp_ctrl_pixel_clock_valid(struct edp_ctrl *ctrl, 83 u32 pixel_rate, u32 *pm, u32 *pn); 84 85 #endif /* __EDP_CONNECTOR_H__ */ 86
