root/drivers/gpu/drm/msm/edp/edp.h

INCLUDED FROM

   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 
  21 struct edp_ctrl;
  22 struct edp_aux;
  23 struct edp_phy;
  24 
  25 struct 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 */
  41 struct drm_bridge *msm_edp_bridge_init(struct msm_edp *edp);
  42 void edp_bridge_destroy(struct drm_bridge *bridge);
  43 
  44 /* eDP connector */
  45 struct drm_connector *msm_edp_connector_init(struct msm_edp *edp);
  46 
  47 /* AUX */
  48 void *msm_edp_aux_init(struct device *dev, void __iomem *regbase,
  49                         struct drm_dp_aux **drm_aux);
  50 void msm_edp_aux_destroy(struct device *dev, struct edp_aux *aux);
  51 irqreturn_t msm_edp_aux_irq(struct edp_aux *aux, u32 isr);
  52 void msm_edp_aux_ctrl(struct edp_aux *aux, int enable);
  53 
  54 /* Phy */
  55 bool msm_edp_phy_ready(struct edp_phy *phy);
  56 void msm_edp_phy_ctrl(struct edp_phy *phy, int enable);
  57 void msm_edp_phy_vm_pe_init(struct edp_phy *phy);
  58 void msm_edp_phy_vm_pe_cfg(struct edp_phy *phy, u32 v0, u32 v1);
  59 void msm_edp_phy_lane_power_ctrl(struct edp_phy *phy, bool up, u32 max_lane);
  60 void *msm_edp_phy_init(struct device *dev, void __iomem *regbase);
  61 
  62 /* Ctrl */
  63 irqreturn_t msm_edp_ctrl_irq(struct edp_ctrl *ctrl);
  64 void msm_edp_ctrl_power(struct edp_ctrl *ctrl, bool on);
  65 int msm_edp_ctrl_init(struct msm_edp *edp);
  66 void msm_edp_ctrl_destroy(struct edp_ctrl *ctrl);
  67 bool msm_edp_ctrl_panel_connected(struct edp_ctrl *ctrl);
  68 int msm_edp_ctrl_get_panel_info(struct edp_ctrl *ctrl,
  69         struct drm_connector *connector, struct edid **edid);
  70 int 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 */
  74 bool msm_edp_ctrl_pixel_clock_valid(struct edp_ctrl *ctrl,
  75         u32 pixel_rate, u32 *pm, u32 *pn);
  76 
  77 #endif /* __EDP_CONNECTOR_H__ */