1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
6 #include "dpu_hw_catalog.h"
8 #include "dpu_hw_dspp.h"
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
25 static void dpu_setup_dspp_pcc(struct dpu_hw_dspp *ctx,
26 struct dpu_hw_pcc_cfg *cfg)
32 DRM_ERROR("invalid ctx %pK\n", ctx);
36 base = ctx->cap->sblk->pcc.base;
39 DRM_ERROR("invalid ctx %pK pcc base 0x%x\n", ctx, base);
44 DRM_DEBUG_DRIVER("disable pcc feature\n");
45 DPU_REG_WRITE(&ctx->hw, base, PCC_DIS);
49 DPU_REG_WRITE(&ctx->hw, base + PCC_RED_R_OFF, cfg->r.r);
50 DPU_REG_WRITE(&ctx->hw, base + PCC_RED_G_OFF, cfg->r.g);
51 DPU_REG_WRITE(&ctx->hw, base + PCC_RED_B_OFF, cfg->r.b);
53 DPU_REG_WRITE(&ctx->hw, base + PCC_GREEN_R_OFF, cfg->g.r);
54 DPU_REG_WRITE(&ctx->hw, base + PCC_GREEN_G_OFF, cfg->g.g);
55 DPU_REG_WRITE(&ctx->hw, base + PCC_GREEN_B_OFF, cfg->g.b);
57 DPU_REG_WRITE(&ctx->hw, base + PCC_BLUE_R_OFF, cfg->b.r);
58 DPU_REG_WRITE(&ctx->hw, base + PCC_BLUE_G_OFF, cfg->b.g);
59 DPU_REG_WRITE(&ctx->hw, base + PCC_BLUE_B_OFF, cfg->b.b);
61 DPU_REG_WRITE(&ctx->hw, base, PCC_EN);
64 static void _setup_dspp_ops(struct dpu_hw_dspp *c,
65 unsigned long features)
67 if (test_bit(DPU_DSPP_PCC, &features))
68 c->ops.setup_pcc = dpu_setup_dspp_pcc;
71 static const struct dpu_dspp_cfg *_dspp_offset(enum dpu_dspp dspp,
72 const struct dpu_mdss_cfg *m,
74 struct dpu_hw_blk_reg_map *b)
78 if (!m || !addr || !b)
79 return ERR_PTR(-EINVAL);
81 for (i = 0; i < m->dspp_count; i++) {
82 if (dspp == m->dspp[i].id) {
83 b->blk_addr = addr + m->dspp[i].base;
84 b->log_mask = DPU_DBG_MASK_DSPP;
89 return ERR_PTR(-EINVAL);
92 struct dpu_hw_dspp *dpu_hw_dspp_init(enum dpu_dspp idx,
94 const struct dpu_mdss_cfg *m)
96 struct dpu_hw_dspp *c;
97 const struct dpu_dspp_cfg *cfg;
100 return ERR_PTR(-EINVAL);
102 c = kzalloc(sizeof(*c), GFP_KERNEL);
104 return ERR_PTR(-ENOMEM);
106 cfg = _dspp_offset(idx, m, addr, &c->hw);
107 if (IS_ERR_OR_NULL(cfg)) {
109 return ERR_PTR(-EINVAL);
115 _setup_dspp_ops(c, c->cap->features);
120 void dpu_hw_dspp_destroy(struct dpu_hw_dspp *dspp)