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