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__ */ 89