LXR linux/drivers/gpu/drm/msm/edp/edp.h

   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
  22#include "drm_crtc.h"
  23#include "drm_dp_helper.h"
  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
  29struct edp_ctrl;
  30struct edp_aux;
  31struct edp_phy;
  32
  33struct 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 */
  49struct drm_bridge *msm_edp_bridge_init(struct msm_edp *edp);
  50void edp_bridge_destroy(struct drm_bridge *bridge);
  51
  52/* eDP connector */
  53struct drm_connector *msm_edp_connector_init(struct msm_edp *edp);
  54
  55/* AUX */
  56void *msm_edp_aux_init(struct device *dev, void __iomem *regbase,
  57                        struct drm_dp_aux **drm_aux);
  58void msm_edp_aux_destroy(struct device *dev, struct edp_aux *aux);
  59irqreturn_t msm_edp_aux_irq(struct edp_aux *aux, u32 isr);
  60void msm_edp_aux_ctrl(struct edp_aux *aux, int enable);
  61
  62/* Phy */
  63bool msm_edp_phy_ready(struct edp_phy *phy);
  64void msm_edp_phy_ctrl(struct edp_phy *phy, int enable);
  65void msm_edp_phy_vm_pe_init(struct edp_phy *phy);
  66void msm_edp_phy_vm_pe_cfg(struct edp_phy *phy, u32 v0, u32 v1);
  67void msm_edp_phy_lane_power_ctrl(struct edp_phy *phy, bool up, u32 max_lane);
  68void *msm_edp_phy_init(struct device *dev, void __iomem *regbase);
  69
  70/* Ctrl */
  71irqreturn_t msm_edp_ctrl_irq(struct edp_ctrl *ctrl);
  72void msm_edp_ctrl_power(struct edp_ctrl *ctrl, bool on);
  73int msm_edp_ctrl_init(struct msm_edp *edp);
  74void msm_edp_ctrl_destroy(struct edp_ctrl *ctrl);
  75bool msm_edp_ctrl_panel_connected(struct edp_ctrl *ctrl);
  76int msm_edp_ctrl_get_panel_info(struct edp_ctrl *ctrl,
  77        struct drm_connector *connector, struct edid **edid);
  78int 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 */
  82bool 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