1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) 2012 Russell King 4 */ 5 #ifndef ARMADA_CRTC_H 6 #define ARMADA_CRTC_H 7 8 #include <drm/drm_crtc.h> 9 10 struct armada_gem_object; 11 12 struct armada_regs { 13 uint32_t offset; 14 uint32_t mask; 15 uint32_t val; 16 }; 17 18 #define armada_reg_queue_mod(_r, _i, _v, _m, _o) \ 19 do { \ 20 struct armada_regs *__reg = _r; \ 21 __reg[_i].offset = _o; \ 22 __reg[_i].mask = ~(_m); \ 23 __reg[_i].val = _v; \ 24 _i++; \ 25 } while (0) 26 27 #define armada_reg_queue_set(_r, _i, _v, _o) \ 28 armada_reg_queue_mod(_r, _i, _v, ~0, _o) 29 30 #define armada_reg_queue_end(_r, _i) \ 31 armada_reg_queue_mod(_r, _i, 0, 0, ~0) 32 33 struct armada_crtc; 34 struct armada_variant; 35 36 struct armada_crtc { 37 struct drm_crtc crtc; 38 const struct armada_variant *variant; 39 void *variant_data; 40 unsigned num; 41 void __iomem *base; 42 struct clk *clk; 43 struct { 44 uint32_t spu_v_h_total; 45 uint32_t spu_v_porch; 46 uint32_t spu_adv_reg; 47 } v[2]; 48 bool interlaced; 49 bool cursor_update; 50 51 struct armada_gem_object *cursor_obj; 52 int cursor_x; 53 int cursor_y; 54 uint32_t cursor_hw_pos; 55 uint32_t cursor_hw_sz; 56 uint32_t cursor_w; 57 uint32_t cursor_h; 58 59 uint32_t cfg_dumb_ctrl; 60 uint32_t spu_iopad_ctrl; 61 62 spinlock_t irq_lock; 63 uint32_t irq_ena; 64 65 bool update_pending; 66 struct drm_pending_vblank_event *event; 67 struct armada_regs atomic_regs[32]; 68 struct armada_regs *regs; 69 unsigned int regs_idx; 70 }; 71 #define drm_to_armada_crtc(c) container_of(c, struct armada_crtc, crtc) 72 73 void armada_drm_crtc_update_regs(struct armada_crtc *, struct armada_regs *); 74 75 struct armada_clocking_params { 76 unsigned long permillage_min; 77 unsigned long permillage_max; 78 u32 settable; 79 u32 div_max; 80 }; 81 82 struct armada_clk_result { 83 unsigned long desired_clk_hz; 84 struct clk *clk; 85 u32 div; 86 }; 87 88 int armada_crtc_select_clock(struct armada_crtc *dcrtc, 89 struct armada_clk_result *res, 90 const struct armada_clocking_params *params, 91 struct clk *clks[], size_t num_clks, 92 unsigned long desired_khz); 93 94 extern struct platform_driver armada_lcd_platform_driver; 95 96 #endif 97