1 /* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License version 2 and
5 * only version 2 as published by the Free Software Foundation.
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
14 #include "dpu_hw_catalog.h"
15 #include "dpu_hw_top.h"
18 #define SSPP_SPARE 0x28
19 #define UBWC_STATIC 0x144
21 #define FLD_SPLIT_DISPLAY_CMD BIT(1)
22 #define FLD_SMART_PANEL_FREE_RUN BIT(2)
23 #define FLD_INTF_1_SW_TRG_MUX BIT(4)
24 #define FLD_INTF_2_SW_TRG_MUX BIT(8)
25 #define FLD_TE_LINE_INTER_WATERLEVEL_MASK 0xFFFF
27 #define DANGER_STATUS 0x360
28 #define SAFE_STATUS 0x364
30 #define TE_LINE_INTERVAL 0x3F4
32 #define TRAFFIC_SHAPER_EN BIT(31)
33 #define TRAFFIC_SHAPER_RD_CLIENT(num) (0x030 + (num * 4))
34 #define TRAFFIC_SHAPER_WR_CLIENT(num) (0x060 + (num * 4))
35 #define TRAFFIC_SHAPER_FIXPOINT_FACTOR 4
37 #define MDP_WD_TIMER_0_CTL 0x380
38 #define MDP_WD_TIMER_0_CTL2 0x384
39 #define MDP_WD_TIMER_0_LOAD_VALUE 0x388
40 #define MDP_WD_TIMER_1_CTL 0x390
41 #define MDP_WD_TIMER_1_CTL2 0x394
42 #define MDP_WD_TIMER_1_LOAD_VALUE 0x398
43 #define MDP_WD_TIMER_2_CTL 0x420
44 #define MDP_WD_TIMER_2_CTL2 0x424
45 #define MDP_WD_TIMER_2_LOAD_VALUE 0x428
46 #define MDP_WD_TIMER_3_CTL 0x430
47 #define MDP_WD_TIMER_3_CTL2 0x434
48 #define MDP_WD_TIMER_3_LOAD_VALUE 0x438
49 #define MDP_WD_TIMER_4_CTL 0x440
50 #define MDP_WD_TIMER_4_CTL2 0x444
51 #define MDP_WD_TIMER_4_LOAD_VALUE 0x448
53 #define MDP_TICK_COUNT 16
54 #define XO_CLK_RATE 19200
55 #define MS_TICKS_IN_SEC 1000
57 #define CALCULATE_WD_LOAD_VALUE(fps) \
58 ((uint32_t)((MS_TICKS_IN_SEC * XO_CLK_RATE)/(MDP_TICK_COUNT * fps)))
62 static void dpu_hw_setup_split_pipe(struct dpu_hw_mdp *mdp,
63 struct split_pipe_cfg *cfg)
65 struct dpu_hw_blk_reg_map *c;
75 if (cfg->mode == INTF_MODE_CMD) {
76 lower_pipe = FLD_SPLIT_DISPLAY_CMD;
77 /* interface controlling sw trigger */
78 if (cfg->intf == INTF_2)
79 lower_pipe |= FLD_INTF_1_SW_TRG_MUX;
81 lower_pipe |= FLD_INTF_2_SW_TRG_MUX;
82 upper_pipe = lower_pipe;
84 if (cfg->intf == INTF_2) {
85 lower_pipe = FLD_INTF_1_SW_TRG_MUX;
86 upper_pipe = FLD_INTF_2_SW_TRG_MUX;
88 lower_pipe = FLD_INTF_2_SW_TRG_MUX;
89 upper_pipe = FLD_INTF_1_SW_TRG_MUX;
94 DPU_REG_WRITE(c, SSPP_SPARE, cfg->split_flush_en ? 0x1 : 0x0);
95 DPU_REG_WRITE(c, SPLIT_DISPLAY_LOWER_PIPE_CTRL, lower_pipe);
96 DPU_REG_WRITE(c, SPLIT_DISPLAY_UPPER_PIPE_CTRL, upper_pipe);
97 DPU_REG_WRITE(c, SPLIT_DISPLAY_EN, cfg->en & 0x1);
100 static bool dpu_hw_setup_clk_force_ctrl(struct dpu_hw_mdp *mdp,
101 enum dpu_clk_ctrl_type clk_ctrl, bool enable)
103 struct dpu_hw_blk_reg_map *c;
104 u32 reg_off, bit_off;
105 u32 reg_val, new_val;
113 if (clk_ctrl <= DPU_CLK_CTRL_NONE || clk_ctrl >= DPU_CLK_CTRL_MAX)
116 reg_off = mdp->caps->clk_ctrls[clk_ctrl].reg_off;
117 bit_off = mdp->caps->clk_ctrls[clk_ctrl].bit_off;
119 reg_val = DPU_REG_READ(c, reg_off);
122 new_val = reg_val | BIT(bit_off);
124 new_val = reg_val & ~BIT(bit_off);
126 DPU_REG_WRITE(c, reg_off, new_val);
128 clk_forced_on = !(reg_val & BIT(bit_off));
130 return clk_forced_on;
134 static void dpu_hw_get_danger_status(struct dpu_hw_mdp *mdp,
135 struct dpu_danger_safe_status *status)
137 struct dpu_hw_blk_reg_map *c;
145 value = DPU_REG_READ(c, DANGER_STATUS);
146 status->mdp = (value >> 0) & 0x3;
147 status->sspp[SSPP_VIG0] = (value >> 4) & 0x3;
148 status->sspp[SSPP_VIG1] = (value >> 6) & 0x3;
149 status->sspp[SSPP_VIG2] = (value >> 8) & 0x3;
150 status->sspp[SSPP_VIG3] = (value >> 10) & 0x3;
151 status->sspp[SSPP_RGB0] = (value >> 12) & 0x3;
152 status->sspp[SSPP_RGB1] = (value >> 14) & 0x3;
153 status->sspp[SSPP_RGB2] = (value >> 16) & 0x3;
154 status->sspp[SSPP_RGB3] = (value >> 18) & 0x3;
155 status->sspp[SSPP_DMA0] = (value >> 20) & 0x3;
156 status->sspp[SSPP_DMA1] = (value >> 22) & 0x3;
157 status->sspp[SSPP_DMA2] = (value >> 28) & 0x3;
158 status->sspp[SSPP_DMA3] = (value >> 30) & 0x3;
159 status->sspp[SSPP_CURSOR0] = (value >> 24) & 0x3;
160 status->sspp[SSPP_CURSOR1] = (value >> 26) & 0x3;
163 static void dpu_hw_setup_vsync_source(struct dpu_hw_mdp *mdp,
164 struct dpu_vsync_source_cfg *cfg)
166 struct dpu_hw_blk_reg_map *c;
167 u32 reg, wd_load_value, wd_ctl, wd_ctl2, i;
168 static const u32 pp_offset[PINGPONG_MAX] = {0xC, 0x8, 0x4, 0x13, 0x18};
170 if (!mdp || !cfg || (cfg->pp_count > ARRAY_SIZE(cfg->ppnumber)))
174 reg = DPU_REG_READ(c, MDP_VSYNC_SEL);
175 for (i = 0; i < cfg->pp_count; i++) {
176 int pp_idx = cfg->ppnumber[i] - PINGPONG_0;
178 if (pp_idx >= ARRAY_SIZE(pp_offset))
181 reg &= ~(0xf << pp_offset[pp_idx]);
182 reg |= (cfg->vsync_source & 0xf) << pp_offset[pp_idx];
184 DPU_REG_WRITE(c, MDP_VSYNC_SEL, reg);
186 if (cfg->vsync_source >= DPU_VSYNC_SOURCE_WD_TIMER_4 &&
187 cfg->vsync_source <= DPU_VSYNC_SOURCE_WD_TIMER_0) {
188 switch (cfg->vsync_source) {
189 case DPU_VSYNC_SOURCE_WD_TIMER_4:
190 wd_load_value = MDP_WD_TIMER_4_LOAD_VALUE;
191 wd_ctl = MDP_WD_TIMER_4_CTL;
192 wd_ctl2 = MDP_WD_TIMER_4_CTL2;
194 case DPU_VSYNC_SOURCE_WD_TIMER_3:
195 wd_load_value = MDP_WD_TIMER_3_LOAD_VALUE;
196 wd_ctl = MDP_WD_TIMER_3_CTL;
197 wd_ctl2 = MDP_WD_TIMER_3_CTL2;
199 case DPU_VSYNC_SOURCE_WD_TIMER_2:
200 wd_load_value = MDP_WD_TIMER_2_LOAD_VALUE;
201 wd_ctl = MDP_WD_TIMER_2_CTL;
202 wd_ctl2 = MDP_WD_TIMER_2_CTL2;
204 case DPU_VSYNC_SOURCE_WD_TIMER_1:
205 wd_load_value = MDP_WD_TIMER_1_LOAD_VALUE;
206 wd_ctl = MDP_WD_TIMER_1_CTL;
207 wd_ctl2 = MDP_WD_TIMER_1_CTL2;
209 case DPU_VSYNC_SOURCE_WD_TIMER_0:
211 wd_load_value = MDP_WD_TIMER_0_LOAD_VALUE;
212 wd_ctl = MDP_WD_TIMER_0_CTL;
213 wd_ctl2 = MDP_WD_TIMER_0_CTL2;
217 DPU_REG_WRITE(c, wd_load_value,
218 CALCULATE_WD_LOAD_VALUE(cfg->frame_rate));
220 DPU_REG_WRITE(c, wd_ctl, BIT(0)); /* clear timer */
221 reg = DPU_REG_READ(c, wd_ctl2);
222 reg |= BIT(8); /* enable heartbeat timer */
223 reg |= BIT(0); /* enable WD timer */
224 DPU_REG_WRITE(c, wd_ctl2, reg);
226 /* make sure that timers are enabled/disabled for vsync state */
231 static void dpu_hw_get_safe_status(struct dpu_hw_mdp *mdp,
232 struct dpu_danger_safe_status *status)
234 struct dpu_hw_blk_reg_map *c;
242 value = DPU_REG_READ(c, SAFE_STATUS);
243 status->mdp = (value >> 0) & 0x1;
244 status->sspp[SSPP_VIG0] = (value >> 4) & 0x1;
245 status->sspp[SSPP_VIG1] = (value >> 6) & 0x1;
246 status->sspp[SSPP_VIG2] = (value >> 8) & 0x1;
247 status->sspp[SSPP_VIG3] = (value >> 10) & 0x1;
248 status->sspp[SSPP_RGB0] = (value >> 12) & 0x1;
249 status->sspp[SSPP_RGB1] = (value >> 14) & 0x1;
250 status->sspp[SSPP_RGB2] = (value >> 16) & 0x1;
251 status->sspp[SSPP_RGB3] = (value >> 18) & 0x1;
252 status->sspp[SSPP_DMA0] = (value >> 20) & 0x1;
253 status->sspp[SSPP_DMA1] = (value >> 22) & 0x1;
254 status->sspp[SSPP_DMA2] = (value >> 28) & 0x1;
255 status->sspp[SSPP_DMA3] = (value >> 30) & 0x1;
256 status->sspp[SSPP_CURSOR0] = (value >> 24) & 0x1;
257 status->sspp[SSPP_CURSOR1] = (value >> 26) & 0x1;
260 static void dpu_hw_reset_ubwc(struct dpu_hw_mdp *mdp, struct dpu_mdss_cfg *m)
262 struct dpu_hw_blk_reg_map c;
267 if (!IS_UBWC_20_SUPPORTED(m->caps->ubwc_version))
270 /* force blk offset to zero to access beginning of register region */
273 DPU_REG_WRITE(&c, UBWC_STATIC, m->mdp[0].ubwc_static);
276 static void dpu_hw_intf_audio_select(struct dpu_hw_mdp *mdp)
278 struct dpu_hw_blk_reg_map *c;
285 DPU_REG_WRITE(c, HDMI_DP_CORE_SELECT, 0x1);
288 static void _setup_mdp_ops(struct dpu_hw_mdp_ops *ops,
291 ops->setup_split_pipe = dpu_hw_setup_split_pipe;
292 ops->setup_clk_force_ctrl = dpu_hw_setup_clk_force_ctrl;
293 ops->get_danger_status = dpu_hw_get_danger_status;
294 ops->setup_vsync_source = dpu_hw_setup_vsync_source;
295 ops->get_safe_status = dpu_hw_get_safe_status;
296 ops->reset_ubwc = dpu_hw_reset_ubwc;
297 ops->intf_audio_select = dpu_hw_intf_audio_select;
300 static const struct dpu_mdp_cfg *_top_offset(enum dpu_mdp mdp,
301 const struct dpu_mdss_cfg *m,
303 struct dpu_hw_blk_reg_map *b)
307 if (!m || !addr || !b)
308 return ERR_PTR(-EINVAL);
310 for (i = 0; i < m->mdp_count; i++) {
311 if (mdp == m->mdp[i].id) {
313 b->blk_off = m->mdp[i].base;
314 b->length = m->mdp[i].len;
315 b->hwversion = m->hwversion;
316 b->log_mask = DPU_DBG_MASK_TOP;
321 return ERR_PTR(-EINVAL);
324 static struct dpu_hw_blk_ops dpu_hw_ops;
326 struct dpu_hw_mdp *dpu_hw_mdptop_init(enum dpu_mdp idx,
328 const struct dpu_mdss_cfg *m)
330 struct dpu_hw_mdp *mdp;
331 const struct dpu_mdp_cfg *cfg;
334 return ERR_PTR(-EINVAL);
336 mdp = kzalloc(sizeof(*mdp), GFP_KERNEL);
338 return ERR_PTR(-ENOMEM);
340 cfg = _top_offset(idx, m, addr, &mdp->hw);
341 if (IS_ERR_OR_NULL(cfg)) {
343 return ERR_PTR(-EINVAL);
351 _setup_mdp_ops(&mdp->ops, mdp->caps->features);
353 dpu_hw_blk_init(&mdp->base, DPU_HW_BLK_TOP, idx, &dpu_hw_ops);
358 void dpu_hw_mdp_destroy(struct dpu_hw_mdp *mdp)
361 dpu_hw_blk_destroy(&mdp->base);