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 #define KMB_LCD_DEFAULT_CLK             200000000
  19 #define KMB_SYS_CLK_MHZ                 500
  20
  21 #define ICAM_MMIO               0x3b100000
  22 #define ICAM_LCD_OFFSET         0x1080
  23 #define ICAM_MMIO_SIZE          0x2000
  24
  25 struct kmb_dsi;
  26
  27 struct kmb_clock {
  28         struct clk *clk_lcd;
  29         struct clk *clk_pll0;
  30 };
  31
  32 struct kmb_drm_private {
  33         struct drm_device               drm;
  34         struct kmb_dsi                  *kmb_dsi;
  35         void __iomem                    *lcd_mmio;
  36         struct kmb_clock                kmb_clk;
  37         struct drm_crtc                 crtc;
  38         struct kmb_plane                *plane;
  39         struct drm_atomic_state         *state;
  40         spinlock_t                      irq_lock;
  41         int                             irq_lcd;
  42         int                             sys_clk_mhz;
  43         struct layer_status             plane_status[KMB_MAX_PLANES];
  44         int                             kmb_under_flow;
  45         int                             kmb_flush_done;
  46         int                             layer_no;
  47 };
  48
  49 static inline struct kmb_drm_private *to_kmb(const struct drm_device *dev)
  50 {
  51         return container_of(dev, struct kmb_drm_private, drm);
  52 }
  53
  54 static inline struct kmb_drm_private *crtc_to_kmb_priv(const struct drm_crtc *x)
  55 {
  56         return container_of(x, struct kmb_drm_private, crtc);
  57 }
  58
  59 static inline void kmb_write_lcd(struct kmb_drm_private *dev_p,
  60                                  unsigned int reg, u32 value)
  61 {
  62         writel(value, (dev_p->lcd_mmio + reg));
  63 }
  64
  65 static inline u32 kmb_read_lcd(struct kmb_drm_private *dev_p, unsigned int reg)
  66 {
  67         return readl(dev_p->lcd_mmio + reg);
  68 }
  69
  70 static inline void kmb_set_bitmask_lcd(struct kmb_drm_private *dev_p,
  71                                        unsigned int reg, u32 mask)
  72 {
  73         u32 reg_val = kmb_read_lcd(dev_p, reg);
  74
  75         kmb_write_lcd(dev_p, reg, (reg_val | mask));
  76 }
  77
  78 static inline void kmb_clr_bitmask_lcd(struct kmb_drm_private *dev_p,
  79                                        unsigned int reg, u32 mask)
  80 {
  81         u32 reg_val = kmb_read_lcd(dev_p, reg);
  82
  83         kmb_write_lcd(dev_p, reg, (reg_val & (~mask)));
  84 }
  85
  86 int kmb_setup_crtc(struct drm_device *dev);
  87 void kmb_set_scanout(struct kmb_drm_private *lcd);
  88 #endif /* __KMB_DRV_H__ */