tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
25struct kmb_dsi;
26
27struct kmb_clock {
28 struct clk *clk_lcd;
29 struct clk *clk_pll0;
30};
31
32struct 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
49static 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
54static 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
59static 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
65static 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
70static 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
78static 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
86int kmb_setup_crtc(struct drm_device *dev);
87void kmb_set_scanout(struct kmb_drm_private *lcd);
88#endif /* __KMB_DRV_H__ */