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26#include <linux/clk.h>
27#include <linux/io.h>
28
29#include "rcar_du_drv.h"
30#include "rcar_du_group.h"
31#include "rcar_du_regs.h"
32
33u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg)
34{
35 return rcar_du_read(rgrp->dev, rgrp->mmio_offset + reg);
36}
37
38void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data)
39{
40 rcar_du_write(rgrp->dev, rgrp->mmio_offset + reg, data);
41}
42
43static void rcar_du_group_setup_pins(struct rcar_du_group *rgrp)
44{
45 u32 defr6 = DEFR6_CODE;
46
47 if (rgrp->channels_mask & BIT(0))
48 defr6 |= DEFR6_ODPM02_DISP;
49
50 if (rgrp->channels_mask & BIT(1))
51 defr6 |= DEFR6_ODPM12_DISP;
52
53 rcar_du_group_write(rgrp, DEFR6, defr6);
54}
55
56static void rcar_du_group_setup_defr8(struct rcar_du_group *rgrp)
57{
58 struct rcar_du_device *rcdu = rgrp->dev;
59 u32 defr8 = DEFR8_CODE;
60
61 if (rcdu->info->gen < 3) {
62 defr8 |= DEFR8_DEFE8;
63
64
65
66
67
68
69 if (rgrp->index == 0) {
70 defr8 |= DEFR8_DRGBS_DU(rcdu->dpad0_source);
71 if (rgrp->dev->vspd1_sink == 2)
72 defr8 |= DEFR8_VSCS;
73 }
74 } else {
75
76
77
78
79
80 if (rgrp->index == rcdu->dpad0_source / 2)
81 defr8 |= DEFR8_DRGBS_DU(rcdu->dpad0_source);
82 }
83
84 rcar_du_group_write(rgrp, DEFR8, defr8);
85}
86
87static void rcar_du_group_setup_didsr(struct rcar_du_group *rgrp)
88{
89 struct rcar_du_device *rcdu = rgrp->dev;
90 struct rcar_du_crtc *rcrtc;
91 unsigned int num_crtcs = 0;
92 unsigned int i;
93 u32 didsr;
94
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100
101
102
103 if (rcdu->info->gen < 3 && rgrp->index == 0) {
104
105
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107
108 rcrtc = rcdu->crtcs;
109 num_crtcs = rcdu->num_crtcs;
110 } else if (rcdu->info->gen == 3 && rgrp->num_crtcs > 1) {
111
112
113
114
115 rcrtc = &rcdu->crtcs[rgrp->index * 2];
116 num_crtcs = rgrp->num_crtcs;
117 }
118
119 if (!num_crtcs)
120 return;
121
122 didsr = DIDSR_CODE;
123 for (i = 0; i < num_crtcs; ++i, ++rcrtc) {
124 if (rcdu->info->lvds_clk_mask & BIT(rcrtc->index))
125 didsr |= DIDSR_LCDS_LVDS0(i)
126 | DIDSR_PDCS_CLK(i, 0);
127 else
128 didsr |= DIDSR_LCDS_DCLKIN(i)
129 | DIDSR_PDCS_CLK(i, 0);
130 }
131
132 rcar_du_group_write(rgrp, DIDSR, didsr);
133}
134
135static void rcar_du_group_setup(struct rcar_du_group *rgrp)
136{
137 struct rcar_du_device *rcdu = rgrp->dev;
138 u32 defr7 = DEFR7_CODE;
139
140
141 rcar_du_group_write(rgrp, DEFR, DEFR_CODE | DEFR_DEFE);
142 if (rcdu->info->gen < 3) {
143 rcar_du_group_write(rgrp, DEFR2, DEFR2_CODE | DEFR2_DEFE2G);
144 rcar_du_group_write(rgrp, DEFR3, DEFR3_CODE | DEFR3_DEFE3);
145 rcar_du_group_write(rgrp, DEFR4, DEFR4_CODE);
146 }
147 rcar_du_group_write(rgrp, DEFR5, DEFR5_CODE | DEFR5_DEFE5);
148
149 rcar_du_group_setup_pins(rgrp);
150
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155
156 defr7 |= (rgrp->cmms_mask & BIT(1) ? DEFR7_CMME1 : 0) |
157 (rgrp->cmms_mask & BIT(0) ? DEFR7_CMME0 : 0);
158 rcar_du_group_write(rgrp, DEFR7, defr7);
159
160 if (rcdu->info->gen >= 2) {
161 rcar_du_group_setup_defr8(rgrp);
162 rcar_du_group_setup_didsr(rgrp);
163 }
164
165 if (rcdu->info->gen >= 3)
166 rcar_du_group_write(rgrp, DEFR10, DEFR10_CODE | DEFR10_DEFE10);
167
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171
172 rcar_du_group_write(rgrp, DORCR, DORCR_PG1D_DS1 | DORCR_DPRS);
173
174
175 mutex_lock(&rgrp->lock);
176 rcar_du_group_write(rgrp, DPTSR, (rgrp->dptsr_planes << 16) |
177 rgrp->dptsr_planes);
178 mutex_unlock(&rgrp->lock);
179}
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189
190
191int rcar_du_group_get(struct rcar_du_group *rgrp)
192{
193 if (rgrp->use_count)
194 goto done;
195
196 rcar_du_group_setup(rgrp);
197
198done:
199 rgrp->use_count++;
200 return 0;
201}
202
203
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206
207
208void rcar_du_group_put(struct rcar_du_group *rgrp)
209{
210 --rgrp->use_count;
211}
212
213static void __rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start)
214{
215 struct rcar_du_device *rcdu = rgrp->dev;
216
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224
225 if (rcdu->info->channels_mask & BIT(rgrp->index * 2)) {
226 struct rcar_du_crtc *rcrtc = &rgrp->dev->crtcs[rgrp->index * 2];
227
228 rcar_du_crtc_dsysr_clr_set(rcrtc, DSYSR_DRES | DSYSR_DEN,
229 start ? DSYSR_DEN : DSYSR_DRES);
230 } else {
231 rcar_du_group_write(rgrp, DSYSR,
232 start ? DSYSR_DEN : DSYSR_DRES);
233 }
234}
235
236void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start)
237{
238
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244
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247
248
249
250 if (start) {
251 if (rgrp->used_crtcs++ != 0)
252 __rcar_du_group_start_stop(rgrp, false);
253 __rcar_du_group_start_stop(rgrp, true);
254 } else {
255 if (--rgrp->used_crtcs == 0)
256 __rcar_du_group_start_stop(rgrp, false);
257 }
258}
259
260void rcar_du_group_restart(struct rcar_du_group *rgrp)
261{
262 rgrp->need_restart = false;
263
264 __rcar_du_group_start_stop(rgrp, false);
265 __rcar_du_group_start_stop(rgrp, true);
266}
267
268int rcar_du_set_dpad0_vsp1_routing(struct rcar_du_device *rcdu)
269{
270 struct rcar_du_group *rgrp;
271 struct rcar_du_crtc *crtc;
272 unsigned int index;
273 int ret;
274
275 if (rcdu->info->gen < 2)
276 return 0;
277
278
279
280
281
282
283
284
285 index = rcdu->info->gen < 3 ? 0 : DIV_ROUND_UP(rcdu->num_crtcs, 2) - 1;
286 rgrp = &rcdu->groups[index];
287 crtc = &rcdu->crtcs[index * 2];
288
289 ret = clk_prepare_enable(crtc->clock);
290 if (ret < 0)
291 return ret;
292
293 rcar_du_group_setup_defr8(rgrp);
294
295 clk_disable_unprepare(crtc->clock);
296
297 return 0;
298}
299
300static void rcar_du_group_set_dpad_levels(struct rcar_du_group *rgrp)
301{
302 static const u32 doflr_values[2] = {
303 DOFLR_HSYCFL0 | DOFLR_VSYCFL0 | DOFLR_ODDFL0 |
304 DOFLR_DISPFL0 | DOFLR_CDEFL0 | DOFLR_RGBFL0,
305 DOFLR_HSYCFL1 | DOFLR_VSYCFL1 | DOFLR_ODDFL1 |
306 DOFLR_DISPFL1 | DOFLR_CDEFL1 | DOFLR_RGBFL1,
307 };
308 static const u32 dpad_mask = BIT(RCAR_DU_OUTPUT_DPAD1)
309 | BIT(RCAR_DU_OUTPUT_DPAD0);
310 struct rcar_du_device *rcdu = rgrp->dev;
311 u32 doflr = DOFLR_CODE;
312 unsigned int i;
313
314 if (rcdu->info->gen < 2)
315 return;
316
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325
326
327 for (i = 0; i < rgrp->num_crtcs; ++i) {
328 struct rcar_du_crtc_state *rstate;
329 struct rcar_du_crtc *rcrtc;
330
331 rcrtc = &rcdu->crtcs[rgrp->index * 2 + i];
332 rstate = to_rcar_crtc_state(rcrtc->crtc.state);
333
334 if (!(rstate->outputs & dpad_mask))
335 doflr |= doflr_values[i];
336 }
337
338 rcar_du_group_write(rgrp, DOFLR, doflr);
339}
340
341int rcar_du_group_set_routing(struct rcar_du_group *rgrp)
342{
343 struct rcar_du_device *rcdu = rgrp->dev;
344 u32 dorcr = rcar_du_group_read(rgrp, DORCR);
345
346 dorcr &= ~(DORCR_PG2T | DORCR_DK2S | DORCR_PG2D_MASK);
347
348
349
350
351
352
353 if (rcdu->dpad1_source == rgrp->index * 2)
354 dorcr |= DORCR_PG2D_DS1;
355 else
356 dorcr |= DORCR_PG2T | DORCR_DK2S | DORCR_PG2D_DS2;
357
358 rcar_du_group_write(rgrp, DORCR, dorcr);
359
360 rcar_du_group_set_dpad_levels(rgrp);
361
362 return rcar_du_set_dpad0_vsp1_routing(rgrp->dev);
363}
364