1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
3 */
4
5 #include <linux/iopoll.h>
6
7 #include "dpu_hw_mdss.h"
8 #include "dpu_hwio.h"
9 #include "dpu_hw_catalog.h"
10 #include "dpu_hw_merge3d.h"
11 #include "dpu_kms.h"
12 #include "dpu_trace.h"
13
14 #define MERGE_3D_MUX 0x000
15 #define MERGE_3D_MODE 0x004
16
_merge_3d_offset(enum dpu_merge_3d idx,const struct dpu_mdss_cfg * m,void __iomem * addr,struct dpu_hw_blk_reg_map * b)17 static const struct dpu_merge_3d_cfg *_merge_3d_offset(enum dpu_merge_3d idx,
18 const struct dpu_mdss_cfg *m,
19 void __iomem *addr,
20 struct dpu_hw_blk_reg_map *b)
21 {
22 int i;
23
24 for (i = 0; i < m->merge_3d_count; i++) {
25 if (idx == m->merge_3d[i].id) {
26 b->base_off = addr;
27 b->blk_off = m->merge_3d[i].base;
28 b->length = m->merge_3d[i].len;
29 b->hwversion = m->hwversion;
30 b->log_mask = DPU_DBG_MASK_PINGPONG;
31 return &m->merge_3d[i];
32 }
33 }
34
35 return ERR_PTR(-EINVAL);
36 }
37
dpu_hw_merge_3d_setup_3d_mode(struct dpu_hw_merge_3d * merge_3d,enum dpu_3d_blend_mode mode_3d)38 static void dpu_hw_merge_3d_setup_3d_mode(struct dpu_hw_merge_3d *merge_3d,
39 enum dpu_3d_blend_mode mode_3d)
40 {
41 struct dpu_hw_blk_reg_map *c;
42 u32 data;
43
44
45 c = &merge_3d->hw;
46 if (mode_3d == BLEND_3D_NONE) {
47 DPU_REG_WRITE(c, MERGE_3D_MODE, 0);
48 DPU_REG_WRITE(c, MERGE_3D_MUX, 0);
49 } else {
50 data = BIT(0) | ((mode_3d - 1) << 1);
51 DPU_REG_WRITE(c, MERGE_3D_MODE, data);
52 }
53 }
54
_setup_merge_3d_ops(struct dpu_hw_merge_3d * c,unsigned long features)55 static void _setup_merge_3d_ops(struct dpu_hw_merge_3d *c,
56 unsigned long features)
57 {
58 c->ops.setup_3d_mode = dpu_hw_merge_3d_setup_3d_mode;
59 };
60
dpu_hw_merge_3d_init(enum dpu_merge_3d idx,void __iomem * addr,const struct dpu_mdss_cfg * m)61 struct dpu_hw_merge_3d *dpu_hw_merge_3d_init(enum dpu_merge_3d idx,
62 void __iomem *addr,
63 const struct dpu_mdss_cfg *m)
64 {
65 struct dpu_hw_merge_3d *c;
66 const struct dpu_merge_3d_cfg *cfg;
67
68 c = kzalloc(sizeof(*c), GFP_KERNEL);
69 if (!c)
70 return ERR_PTR(-ENOMEM);
71
72 cfg = _merge_3d_offset(idx, m, addr, &c->hw);
73 if (IS_ERR_OR_NULL(cfg)) {
74 kfree(c);
75 return ERR_PTR(-EINVAL);
76 }
77
78 c->idx = idx;
79 c->caps = cfg;
80 _setup_merge_3d_ops(c, c->caps->features);
81
82 return c;
83 }
84
dpu_hw_merge_3d_destroy(struct dpu_hw_merge_3d * hw)85 void dpu_hw_merge_3d_destroy(struct dpu_hw_merge_3d *hw)
86 {
87 kfree(hw);
88 }
89