drivers/gpu/drm/kmb/kmb_drv.h

   1 /* SPDX-License-Identifier: GPL-2.0-only
   2  *
   3  * Copyright © 2018-2020 Intel Corporation
   4  */
   5
   6 #ifndef __KMB_DRV_H__
   7 #define __KMB_DRV_H__
   8
   9 #include <drm/drm_device.h>
  10
  11 #include "kmb_plane.h"
  12 #include "kmb_regs.h"
  13
  14 #define KMB_MAX_WIDTH                   1920 /*Max width in pixels */
  15 #define KMB_MAX_HEIGHT                  1080 /*Max height in pixels */
  16 #define KMB_MIN_WIDTH                   1920 /*Max width in pixels */
  17 #define KMB_MIN_HEIGHT                  1080 /*Max height in pixels */
  18
  19 #define DRIVER_DATE                     "20210223"
  20 #define DRIVER_MAJOR                    1
  21 #define DRIVER_MINOR                    1
  22
  23 #define KMB_LCD_DEFAULT_CLK             200000000
  24 #define KMB_SYS_CLK_MHZ                 500
  25
  26 #define ICAM_MMIO               0x3b100000
  27 #define ICAM_LCD_OFFSET         0x1080
  28 #define ICAM_MMIO_SIZE          0x2000
  29
  30 struct kmb_dsi;
  31
  32 struct kmb_clock {
  33         struct clk *clk_lcd;
  34         struct clk *clk_pll0;
  35 };
  36
  37 struct kmb_drm_private {
  38         struct drm_device               drm;
  39         struct kmb_dsi                  *kmb_dsi;
  40         void __iomem                    *lcd_mmio;
  41         struct kmb_clock                kmb_clk;
  42         struct drm_crtc                 crtc;
  43         struct kmb_plane                *plane;
  44         struct drm_atomic_state         *state;
  45         spinlock_t                      irq_lock;
  46         int                             irq_lcd;
  47         int                             sys_clk_mhz;
  48         struct layer_status             plane_status[KMB_MAX_PLANES];
  49         int                             kmb_under_flow;
  50         int                             kmb_flush_done;
  51         int                             layer_no;
  52 };
  53
  54 static inline struct kmb_drm_private *to_kmb(const struct drm_device *dev)
  55 {
  56         return container_of(dev, struct kmb_drm_private, drm);
  57 }
  58
  59 static inline struct kmb_drm_private *crtc_to_kmb_priv(const struct drm_crtc *x)
  60 {
  61         return container_of(x, struct kmb_drm_private, crtc);
  62 }
  63
  64 static inline void kmb_write_lcd(struct kmb_drm_private *dev_p,
  65                                  unsigned int reg, u32 value)
  66 {
  67         writel(value, (dev_p->lcd_mmio + reg));
  68 }
  69
  70 static inline u32 kmb_read_lcd(struct kmb_drm_private *dev_p, unsigned int reg)
  71 {
  72         return readl(dev_p->lcd_mmio + reg);
  73 }
  74
  75 static inline void kmb_set_bitmask_lcd(struct kmb_drm_private *dev_p,
  76                                        unsigned int reg, u32 mask)
  77 {
  78         u32 reg_val = kmb_read_lcd(dev_p, reg);
  79
  80         kmb_write_lcd(dev_p, reg, (reg_val | mask));
  81 }
  82
  83 static inline void kmb_clr_bitmask_lcd(struct kmb_drm_private *dev_p,
  84                                        unsigned int reg, u32 mask)
  85 {
  86         u32 reg_val = kmb_read_lcd(dev_p, reg);
  87
  88         kmb_write_lcd(dev_p, reg, (reg_val & (~mask)));
  89 }
  90
  91 int kmb_setup_crtc(struct drm_device *dev);
  92 void kmb_set_scanout(struct kmb_drm_private *lcd);
  93 #endif /* __KMB_DRV_H__ */