1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
3 */
4
5 #include "dpu_hwio.h"
6 #include "dpu_hw_catalog.h"
7 #include "dpu_hw_lm.h"
8 #include "dpu_hw_dspp.h"
9 #include "dpu_kms.h"
10
11
12 /* DSPP_PCC */
13 #define PCC_EN BIT(0)
14 #define PCC_DIS 0
15 #define PCC_RED_R_OFF 0x10
16 #define PCC_RED_G_OFF 0x1C
17 #define PCC_RED_B_OFF 0x28
18 #define PCC_GREEN_R_OFF 0x14
19 #define PCC_GREEN_G_OFF 0x20
20 #define PCC_GREEN_B_OFF 0x2C
21 #define PCC_BLUE_R_OFF 0x18
22 #define PCC_BLUE_G_OFF 0x24
23 #define PCC_BLUE_B_OFF 0x30
24
dpu_setup_dspp_pcc(struct dpu_hw_dspp * ctx,struct dpu_hw_pcc_cfg * cfg)25 static void dpu_setup_dspp_pcc(struct dpu_hw_dspp *ctx,
26 struct dpu_hw_pcc_cfg *cfg)
27 {
28
29 u32 base = ctx->cap->sblk->pcc.base;
30
31 if (!ctx || !base) {
32 DRM_ERROR("invalid ctx %pK pcc base 0x%x\n", ctx, base);
33 return;
34 }
35
36 if (!cfg) {
37 DRM_DEBUG_DRIVER("disable pcc feature\n");
38 DPU_REG_WRITE(&ctx->hw, base, PCC_DIS);
39 return;
40 }
41
42 DPU_REG_WRITE(&ctx->hw, base + PCC_RED_R_OFF, cfg->r.r);
43 DPU_REG_WRITE(&ctx->hw, base + PCC_RED_G_OFF, cfg->r.g);
44 DPU_REG_WRITE(&ctx->hw, base + PCC_RED_B_OFF, cfg->r.b);
45
46 DPU_REG_WRITE(&ctx->hw, base + PCC_GREEN_R_OFF, cfg->g.r);
47 DPU_REG_WRITE(&ctx->hw, base + PCC_GREEN_G_OFF, cfg->g.g);
48 DPU_REG_WRITE(&ctx->hw, base + PCC_GREEN_B_OFF, cfg->g.b);
49
50 DPU_REG_WRITE(&ctx->hw, base + PCC_BLUE_R_OFF, cfg->b.r);
51 DPU_REG_WRITE(&ctx->hw, base + PCC_BLUE_G_OFF, cfg->b.g);
52 DPU_REG_WRITE(&ctx->hw, base + PCC_BLUE_B_OFF, cfg->b.b);
53
54 DPU_REG_WRITE(&ctx->hw, base, PCC_EN);
55 }
56
_setup_dspp_ops(struct dpu_hw_dspp * c,unsigned long features)57 static void _setup_dspp_ops(struct dpu_hw_dspp *c,
58 unsigned long features)
59 {
60 if (test_bit(DPU_DSPP_PCC, &features) &&
61 IS_SC7180_TARGET(c->hw.hwversion))
62 c->ops.setup_pcc = dpu_setup_dspp_pcc;
63 }
64
_dspp_offset(enum dpu_dspp dspp,const struct dpu_mdss_cfg * m,void __iomem * addr,struct dpu_hw_blk_reg_map * b)65 static const struct dpu_dspp_cfg *_dspp_offset(enum dpu_dspp dspp,
66 const struct dpu_mdss_cfg *m,
67 void __iomem *addr,
68 struct dpu_hw_blk_reg_map *b)
69 {
70 int i;
71
72 if (!m || !addr || !b)
73 return ERR_PTR(-EINVAL);
74
75 for (i = 0; i < m->dspp_count; i++) {
76 if (dspp == m->dspp[i].id) {
77 b->base_off = addr;
78 b->blk_off = m->dspp[i].base;
79 b->length = m->dspp[i].len;
80 b->hwversion = m->hwversion;
81 b->log_mask = DPU_DBG_MASK_DSPP;
82 return &m->dspp[i];
83 }
84 }
85
86 return ERR_PTR(-EINVAL);
87 }
88
89 static struct dpu_hw_blk_ops dpu_hw_ops;
90
dpu_hw_dspp_init(enum dpu_dspp idx,void __iomem * addr,const struct dpu_mdss_cfg * m)91 struct dpu_hw_dspp *dpu_hw_dspp_init(enum dpu_dspp idx,
92 void __iomem *addr,
93 const struct dpu_mdss_cfg *m)
94 {
95 struct dpu_hw_dspp *c;
96 const struct dpu_dspp_cfg *cfg;
97
98 if (!addr || !m)
99 return ERR_PTR(-EINVAL);
100
101 c = kzalloc(sizeof(*c), GFP_KERNEL);
102 if (!c)
103 return ERR_PTR(-ENOMEM);
104
105 cfg = _dspp_offset(idx, m, addr, &c->hw);
106 if (IS_ERR_OR_NULL(cfg)) {
107 kfree(c);
108 return ERR_PTR(-EINVAL);
109 }
110
111 /* Assign ops */
112 c->idx = idx;
113 c->cap = cfg;
114 _setup_dspp_ops(c, c->cap->features);
115
116 dpu_hw_blk_init(&c->base, DPU_HW_BLK_DSPP, idx, &dpu_hw_ops);
117
118 return c;
119 }
120
dpu_hw_dspp_destroy(struct dpu_hw_dspp * dspp)121 void dpu_hw_dspp_destroy(struct dpu_hw_dspp *dspp)
122 {
123 if (dspp)
124 dpu_hw_blk_destroy(&dspp->base);
125
126 kfree(dspp);
127 }
128
129
130
