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

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
   4 */
   5
   6#ifndef __EDP_CONNECTOR_H__
   7#define __EDP_CONNECTOR_H__
   8
   9#include <linux/i2c.h>
  10#include <linux/interrupt.h>
  11#include <linux/kernel.h>
  12#include <linux/platform_device.h>
  13#include <drm/drm_crtc.h>
  14#include <drm/drm_dp_helper.h>
  15
  16#include "msm_drv.h"
  17
  18#define edp_read(offset) msm_readl((offset))
  19#define edp_write(offset, data) msm_writel((data), (offset))
  20
  21struct edp_ctrl;
  22struct edp_aux;
  23struct edp_phy;
  24
  25struct msm_edp {
  26        struct drm_device *dev;
  27        struct platform_device *pdev;
  28
  29        struct drm_connector *connector;
  30        struct drm_bridge *bridge;
  31
  32        /* the encoder we are hooked to (outside of eDP block) */
  33        struct drm_encoder *encoder;
  34
  35        struct edp_ctrl *ctrl;
  36
  37        int irq;
  38};
  39
  40/* eDP bridge */
  41struct drm_bridge *msm_edp_bridge_init(struct msm_edp *edp);
  42void edp_bridge_destroy(struct drm_bridge *bridge);
  43
  44/* eDP connector */
  45struct drm_connector *msm_edp_connector_init(struct msm_edp *edp);
  46
  47/* AUX */
  48void *msm_edp_aux_init(struct device *dev, void __iomem *regbase,
  49                        struct drm_dp_aux **drm_aux);
  50void msm_edp_aux_destroy(struct device *dev, struct edp_aux *aux);
  51irqreturn_t msm_edp_aux_irq(struct edp_aux *aux, u32 isr);
  52void msm_edp_aux_ctrl(struct edp_aux *aux, int enable);
  53
  54/* Phy */
  55bool msm_edp_phy_ready(struct edp_phy *phy);
  56void msm_edp_phy_ctrl(struct edp_phy *phy, int enable);
  57void msm_edp_phy_vm_pe_init(struct edp_phy *phy);
  58void msm_edp_phy_vm_pe_cfg(struct edp_phy *phy, u32 v0, u32 v1);
  59void msm_edp_phy_lane_power_ctrl(struct edp_phy *phy, bool up, u32 max_lane);
  60void *msm_edp_phy_init(struct device *dev, void __iomem *regbase);
  61
  62/* Ctrl */
  63irqreturn_t msm_edp_ctrl_irq(struct edp_ctrl *ctrl);
  64void msm_edp_ctrl_power(struct edp_ctrl *ctrl, bool on);
  65int msm_edp_ctrl_init(struct msm_edp *edp);
  66void msm_edp_ctrl_destroy(struct edp_ctrl *ctrl);
  67bool msm_edp_ctrl_panel_connected(struct edp_ctrl *ctrl);
  68int msm_edp_ctrl_get_panel_info(struct edp_ctrl *ctrl,
  69        struct drm_connector *connector, struct edid **edid);
  70int msm_edp_ctrl_timing_cfg(struct edp_ctrl *ctrl,
  71                                const struct drm_display_mode *mode,
  72                                const struct drm_display_info *info);
  73/* @pixel_rate is in kHz */
  74bool msm_edp_ctrl_pixel_clock_valid(struct edp_ctrl *ctrl,
  75        u32 pixel_rate, u32 *pm, u32 *pn);
  76
  77#endif /* __EDP_CONNECTOR_H__ */
  78