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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (c) 2015 MediaTek Inc.
4 */
5
6#include <linux/clk.h>
7#include <linux/iopoll.h>
8#include <linux/module.h>
9#include <linux/of_device.h>
10#include <linux/platform_device.h>
11#include <linux/regmap.h>
12
13#include "mtk_drm_ddp.h"
14#include "mtk_drm_ddp_comp.h"
15
16#define DISP_REG_CONFIG_DISP_OVL0_MOUT_EN 0x040
17#define DISP_REG_CONFIG_DISP_OVL1_MOUT_EN 0x044
18#define DISP_REG_CONFIG_DISP_OD_MOUT_EN 0x048
19#define DISP_REG_CONFIG_DISP_GAMMA_MOUT_EN 0x04c
20#define DISP_REG_CONFIG_DISP_UFOE_MOUT_EN 0x050
21#define DISP_REG_CONFIG_DISP_COLOR0_SEL_IN 0x084
22#define DISP_REG_CONFIG_DISP_COLOR1_SEL_IN 0x088
23#define DISP_REG_CONFIG_DSIE_SEL_IN 0x0a4
24#define DISP_REG_CONFIG_DSIO_SEL_IN 0x0a8
25#define DISP_REG_CONFIG_DPI_SEL_IN 0x0ac
26#define DISP_REG_CONFIG_DISP_RDMA2_SOUT 0x0b8
27#define DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN 0x0c4
28#define DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN 0x0c8
29#define DISP_REG_CONFIG_MMSYS_CG_CON0 0x100
30
31#define DISP_REG_CONFIG_DISP_OVL_MOUT_EN 0x030
32#define DISP_REG_CONFIG_OUT_SEL 0x04c
33#define DISP_REG_CONFIG_DSI_SEL 0x050
34#define DISP_REG_CONFIG_DPI_SEL 0x064
35
36#define DISP_REG_MUTEX_EN(n) (0x20 + 0x20 * (n))
37#define DISP_REG_MUTEX(n) (0x24 + 0x20 * (n))
38#define DISP_REG_MUTEX_RST(n) (0x28 + 0x20 * (n))
39#define DISP_REG_MUTEX_MOD(n) (0x2c + 0x20 * (n))
40#define DISP_REG_MUTEX_SOF(n) (0x30 + 0x20 * (n))
41#define DISP_REG_MUTEX_MOD2(n) (0x34 + 0x20 * (n))
42
43#define INT_MUTEX BIT(1)
44
45#define MT8173_MUTEX_MOD_DISP_OVL0 11
46#define MT8173_MUTEX_MOD_DISP_OVL1 12
47#define MT8173_MUTEX_MOD_DISP_RDMA0 13
48#define MT8173_MUTEX_MOD_DISP_RDMA1 14
49#define MT8173_MUTEX_MOD_DISP_RDMA2 15
50#define MT8173_MUTEX_MOD_DISP_WDMA0 16
51#define MT8173_MUTEX_MOD_DISP_WDMA1 17
52#define MT8173_MUTEX_MOD_DISP_COLOR0 18
53#define MT8173_MUTEX_MOD_DISP_COLOR1 19
54#define MT8173_MUTEX_MOD_DISP_AAL 20
55#define MT8173_MUTEX_MOD_DISP_GAMMA 21
56#define MT8173_MUTEX_MOD_DISP_UFOE 22
57#define MT8173_MUTEX_MOD_DISP_PWM0 23
58#define MT8173_MUTEX_MOD_DISP_PWM1 24
59#define MT8173_MUTEX_MOD_DISP_OD 25
60
61#define MT2712_MUTEX_MOD_DISP_PWM2 10
62#define MT2712_MUTEX_MOD_DISP_OVL0 11
63#define MT2712_MUTEX_MOD_DISP_OVL1 12
64#define MT2712_MUTEX_MOD_DISP_RDMA0 13
65#define MT2712_MUTEX_MOD_DISP_RDMA1 14
66#define MT2712_MUTEX_MOD_DISP_RDMA2 15
67#define MT2712_MUTEX_MOD_DISP_WDMA0 16
68#define MT2712_MUTEX_MOD_DISP_WDMA1 17
69#define MT2712_MUTEX_MOD_DISP_COLOR0 18
70#define MT2712_MUTEX_MOD_DISP_COLOR1 19
71#define MT2712_MUTEX_MOD_DISP_AAL0 20
72#define MT2712_MUTEX_MOD_DISP_UFOE 22
73#define MT2712_MUTEX_MOD_DISP_PWM0 23
74#define MT2712_MUTEX_MOD_DISP_PWM1 24
75#define MT2712_MUTEX_MOD_DISP_OD0 25
76#define MT2712_MUTEX_MOD2_DISP_AAL1 33
77#define MT2712_MUTEX_MOD2_DISP_OD1 34
78
79#define MT2701_MUTEX_MOD_DISP_OVL 3
80#define MT2701_MUTEX_MOD_DISP_WDMA 6
81#define MT2701_MUTEX_MOD_DISP_COLOR 7
82#define MT2701_MUTEX_MOD_DISP_BLS 9
83#define MT2701_MUTEX_MOD_DISP_RDMA0 10
84#define MT2701_MUTEX_MOD_DISP_RDMA1 12
85
86#define MUTEX_SOF_SINGLE_MODE 0
87#define MUTEX_SOF_DSI0 1
88#define MUTEX_SOF_DSI1 2
89#define MUTEX_SOF_DPI0 3
90#define MUTEX_SOF_DPI1 4
91#define MUTEX_SOF_DSI2 5
92#define MUTEX_SOF_DSI3 6
93
94#define OVL0_MOUT_EN_COLOR0 0x1
95#define OD_MOUT_EN_RDMA0 0x1
96#define OD1_MOUT_EN_RDMA1 BIT(16)
97#define UFOE_MOUT_EN_DSI0 0x1
98#define COLOR0_SEL_IN_OVL0 0x1
99#define OVL1_MOUT_EN_COLOR1 0x1
100#define GAMMA_MOUT_EN_RDMA1 0x1
101#define RDMA0_SOUT_DPI0 0x2
102#define RDMA0_SOUT_DPI1 0x3
103#define RDMA0_SOUT_DSI1 0x1
104#define RDMA0_SOUT_DSI2 0x4
105#define RDMA0_SOUT_DSI3 0x5
106#define RDMA1_SOUT_DPI0 0x2
107#define RDMA1_SOUT_DPI1 0x3
108#define RDMA1_SOUT_DSI1 0x1
109#define RDMA1_SOUT_DSI2 0x4
110#define RDMA1_SOUT_DSI3 0x5
111#define RDMA2_SOUT_DPI0 0x2
112#define RDMA2_SOUT_DPI1 0x3
113#define RDMA2_SOUT_DSI1 0x1
114#define RDMA2_SOUT_DSI2 0x4
115#define RDMA2_SOUT_DSI3 0x5
116#define DPI0_SEL_IN_RDMA1 0x1
117#define DPI0_SEL_IN_RDMA2 0x3
118#define DPI1_SEL_IN_RDMA1 (0x1 << 8)
119#define DPI1_SEL_IN_RDMA2 (0x3 << 8)
120#define DSI0_SEL_IN_RDMA1 0x1
121#define DSI0_SEL_IN_RDMA2 0x4
122#define DSI1_SEL_IN_RDMA1 0x1
123#define DSI1_SEL_IN_RDMA2 0x4
124#define DSI2_SEL_IN_RDMA1 (0x1 << 16)
125#define DSI2_SEL_IN_RDMA2 (0x4 << 16)
126#define DSI3_SEL_IN_RDMA1 (0x1 << 16)
127#define DSI3_SEL_IN_RDMA2 (0x4 << 16)
128#define COLOR1_SEL_IN_OVL1 0x1
129
130#define OVL_MOUT_EN_RDMA 0x1
131#define BLS_TO_DSI_RDMA1_TO_DPI1 0x8
132#define BLS_TO_DPI_RDMA1_TO_DSI 0x2
133#define DSI_SEL_IN_BLS 0x0
134#define DPI_SEL_IN_BLS 0x0
135#define DSI_SEL_IN_RDMA 0x1
136
137struct mtk_disp_mutex {
138 int id;
139 bool claimed;
140};
141
142struct mtk_ddp {
143 struct device *dev;
144 struct clk *clk;
145 void __iomem *regs;
146 struct mtk_disp_mutex mutex[10];
147 const unsigned int *mutex_mod;
148};
149
150static const unsigned int mt2701_mutex_mod[DDP_COMPONENT_ID_MAX] = {
151 [DDP_COMPONENT_BLS] = MT2701_MUTEX_MOD_DISP_BLS,
152 [DDP_COMPONENT_COLOR0] = MT2701_MUTEX_MOD_DISP_COLOR,
153 [DDP_COMPONENT_OVL0] = MT2701_MUTEX_MOD_DISP_OVL,
154 [DDP_COMPONENT_RDMA0] = MT2701_MUTEX_MOD_DISP_RDMA0,
155 [DDP_COMPONENT_RDMA1] = MT2701_MUTEX_MOD_DISP_RDMA1,
156 [DDP_COMPONENT_WDMA0] = MT2701_MUTEX_MOD_DISP_WDMA,
157};
158
159static const unsigned int mt2712_mutex_mod[DDP_COMPONENT_ID_MAX] = {
160 [DDP_COMPONENT_AAL0] = MT2712_MUTEX_MOD_DISP_AAL0,
161 [DDP_COMPONENT_AAL1] = MT2712_MUTEX_MOD2_DISP_AAL1,
162 [DDP_COMPONENT_COLOR0] = MT2712_MUTEX_MOD_DISP_COLOR0,
163 [DDP_COMPONENT_COLOR1] = MT2712_MUTEX_MOD_DISP_COLOR1,
164 [DDP_COMPONENT_OD0] = MT2712_MUTEX_MOD_DISP_OD0,
165 [DDP_COMPONENT_OD1] = MT2712_MUTEX_MOD2_DISP_OD1,
166 [DDP_COMPONENT_OVL0] = MT2712_MUTEX_MOD_DISP_OVL0,
167 [DDP_COMPONENT_OVL1] = MT2712_MUTEX_MOD_DISP_OVL1,
168 [DDP_COMPONENT_PWM0] = MT2712_MUTEX_MOD_DISP_PWM0,
169 [DDP_COMPONENT_PWM1] = MT2712_MUTEX_MOD_DISP_PWM1,
170 [DDP_COMPONENT_PWM2] = MT2712_MUTEX_MOD_DISP_PWM2,
171 [DDP_COMPONENT_RDMA0] = MT2712_MUTEX_MOD_DISP_RDMA0,
172 [DDP_COMPONENT_RDMA1] = MT2712_MUTEX_MOD_DISP_RDMA1,
173 [DDP_COMPONENT_RDMA2] = MT2712_MUTEX_MOD_DISP_RDMA2,
174 [DDP_COMPONENT_UFOE] = MT2712_MUTEX_MOD_DISP_UFOE,
175 [DDP_COMPONENT_WDMA0] = MT2712_MUTEX_MOD_DISP_WDMA0,
176 [DDP_COMPONENT_WDMA1] = MT2712_MUTEX_MOD_DISP_WDMA1,
177};
178
179static const unsigned int mt8173_mutex_mod[DDP_COMPONENT_ID_MAX] = {
180 [DDP_COMPONENT_AAL0] = MT8173_MUTEX_MOD_DISP_AAL,
181 [DDP_COMPONENT_COLOR0] = MT8173_MUTEX_MOD_DISP_COLOR0,
182 [DDP_COMPONENT_COLOR1] = MT8173_MUTEX_MOD_DISP_COLOR1,
183 [DDP_COMPONENT_GAMMA] = MT8173_MUTEX_MOD_DISP_GAMMA,
184 [DDP_COMPONENT_OD0] = MT8173_MUTEX_MOD_DISP_OD,
185 [DDP_COMPONENT_OVL0] = MT8173_MUTEX_MOD_DISP_OVL0,
186 [DDP_COMPONENT_OVL1] = MT8173_MUTEX_MOD_DISP_OVL1,
187 [DDP_COMPONENT_PWM0] = MT8173_MUTEX_MOD_DISP_PWM0,
188 [DDP_COMPONENT_PWM1] = MT8173_MUTEX_MOD_DISP_PWM1,
189 [DDP_COMPONENT_RDMA0] = MT8173_MUTEX_MOD_DISP_RDMA0,
190 [DDP_COMPONENT_RDMA1] = MT8173_MUTEX_MOD_DISP_RDMA1,
191 [DDP_COMPONENT_RDMA2] = MT8173_MUTEX_MOD_DISP_RDMA2,
192 [DDP_COMPONENT_UFOE] = MT8173_MUTEX_MOD_DISP_UFOE,
193 [DDP_COMPONENT_WDMA0] = MT8173_MUTEX_MOD_DISP_WDMA0,
194 [DDP_COMPONENT_WDMA1] = MT8173_MUTEX_MOD_DISP_WDMA1,
195};
196
197static unsigned int mtk_ddp_mout_en(enum mtk_ddp_comp_id cur,
198 enum mtk_ddp_comp_id next,
199 unsigned int *addr)
200{
201 unsigned int value;
202
203 if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_COLOR0) {
204 *addr = DISP_REG_CONFIG_DISP_OVL0_MOUT_EN;
205 value = OVL0_MOUT_EN_COLOR0;
206 } else if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_RDMA0) {
207 *addr = DISP_REG_CONFIG_DISP_OVL_MOUT_EN;
208 value = OVL_MOUT_EN_RDMA;
209 } else if (cur == DDP_COMPONENT_OD0 && next == DDP_COMPONENT_RDMA0) {
210 *addr = DISP_REG_CONFIG_DISP_OD_MOUT_EN;
211 value = OD_MOUT_EN_RDMA0;
212 } else if (cur == DDP_COMPONENT_UFOE && next == DDP_COMPONENT_DSI0) {
213 *addr = DISP_REG_CONFIG_DISP_UFOE_MOUT_EN;
214 value = UFOE_MOUT_EN_DSI0;
215 } else if (cur == DDP_COMPONENT_OVL1 && next == DDP_COMPONENT_COLOR1) {
216 *addr = DISP_REG_CONFIG_DISP_OVL1_MOUT_EN;
217 value = OVL1_MOUT_EN_COLOR1;
218 } else if (cur == DDP_COMPONENT_GAMMA && next == DDP_COMPONENT_RDMA1) {
219 *addr = DISP_REG_CONFIG_DISP_GAMMA_MOUT_EN;
220 value = GAMMA_MOUT_EN_RDMA1;
221 } else if (cur == DDP_COMPONENT_OD1 && next == DDP_COMPONENT_RDMA1) {
222 *addr = DISP_REG_CONFIG_DISP_OD_MOUT_EN;
223 value = OD1_MOUT_EN_RDMA1;
224 } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DPI0) {
225 *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN;
226 value = RDMA0_SOUT_DPI0;
227 } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DPI1) {
228 *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN;
229 value = RDMA0_SOUT_DPI1;
230 } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DSI1) {
231 *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN;
232 value = RDMA0_SOUT_DSI1;
233 } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DSI2) {
234 *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN;
235 value = RDMA0_SOUT_DSI2;
236 } else if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_DSI3) {
237 *addr = DISP_REG_CONFIG_DISP_RDMA0_SOUT_EN;
238 value = RDMA0_SOUT_DSI3;
239 } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI1) {
240 *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN;
241 value = RDMA1_SOUT_DSI1;
242 } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI2) {
243 *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN;
244 value = RDMA1_SOUT_DSI2;
245 } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI3) {
246 *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN;
247 value = RDMA1_SOUT_DSI3;
248 } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI0) {
249 *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN;
250 value = RDMA1_SOUT_DPI0;
251 } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI1) {
252 *addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN;
253 value = RDMA1_SOUT_DPI1;
254 } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI0) {
255 *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT;
256 value = RDMA2_SOUT_DPI0;
257 } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI1) {
258 *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT;
259 value = RDMA2_SOUT_DPI1;
260 } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI1) {
261 *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT;
262 value = RDMA2_SOUT_DSI1;
263 } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI2) {
264 *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT;
265 value = RDMA2_SOUT_DSI2;
266 } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI3) {
267 *addr = DISP_REG_CONFIG_DISP_RDMA2_SOUT;
268 value = RDMA2_SOUT_DSI3;
269 } else {
270 value = 0;
271 }
272
273 return value;
274}
275
276static unsigned int mtk_ddp_sel_in(enum mtk_ddp_comp_id cur,
277 enum mtk_ddp_comp_id next,
278 unsigned int *addr)
279{
280 unsigned int value;
281
282 if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_COLOR0) {
283 *addr = DISP_REG_CONFIG_DISP_COLOR0_SEL_IN;
284 value = COLOR0_SEL_IN_OVL0;
285 } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI0) {
286 *addr = DISP_REG_CONFIG_DPI_SEL_IN;
287 value = DPI0_SEL_IN_RDMA1;
288 } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI1) {
289 *addr = DISP_REG_CONFIG_DPI_SEL_IN;
290 value = DPI1_SEL_IN_RDMA1;
291 } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI0) {
292 *addr = DISP_REG_CONFIG_DSIE_SEL_IN;
293 value = DSI0_SEL_IN_RDMA1;
294 } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI1) {
295 *addr = DISP_REG_CONFIG_DSIO_SEL_IN;
296 value = DSI1_SEL_IN_RDMA1;
297 } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI2) {
298 *addr = DISP_REG_CONFIG_DSIE_SEL_IN;
299 value = DSI2_SEL_IN_RDMA1;
300 } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI3) {
301 *addr = DISP_REG_CONFIG_DSIO_SEL_IN;
302 value = DSI3_SEL_IN_RDMA1;
303 } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI0) {
304 *addr = DISP_REG_CONFIG_DPI_SEL_IN;
305 value = DPI0_SEL_IN_RDMA2;
306 } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DPI1) {
307 *addr = DISP_REG_CONFIG_DPI_SEL_IN;
308 value = DPI1_SEL_IN_RDMA2;
309 } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI0) {
310 *addr = DISP_REG_CONFIG_DSIE_SEL_IN;
311 value = DSI0_SEL_IN_RDMA2;
312 } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI1) {
313 *addr = DISP_REG_CONFIG_DSIO_SEL_IN;
314 value = DSI1_SEL_IN_RDMA2;
315 } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI2) {
316 *addr = DISP_REG_CONFIG_DSIE_SEL_IN;
317 value = DSI2_SEL_IN_RDMA2;
318 } else if (cur == DDP_COMPONENT_RDMA2 && next == DDP_COMPONENT_DSI3) {
319 *addr = DISP_REG_CONFIG_DSIE_SEL_IN;
320 value = DSI3_SEL_IN_RDMA2;
321 } else if (cur == DDP_COMPONENT_OVL1 && next == DDP_COMPONENT_COLOR1) {
322 *addr = DISP_REG_CONFIG_DISP_COLOR1_SEL_IN;
323 value = COLOR1_SEL_IN_OVL1;
324 } else if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DSI0) {
325 *addr = DISP_REG_CONFIG_DSI_SEL;
326 value = DSI_SEL_IN_BLS;
327 } else {
328 value = 0;
329 }
330
331 return value;
332}
333
334static void mtk_ddp_sout_sel(void __iomem *config_regs,
335 enum mtk_ddp_comp_id cur,
336 enum mtk_ddp_comp_id next)
337{
338 if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DSI0) {
339 writel_relaxed(BLS_TO_DSI_RDMA1_TO_DPI1,
340 config_regs + DISP_REG_CONFIG_OUT_SEL);
341 } else if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DPI0) {
342 writel_relaxed(BLS_TO_DPI_RDMA1_TO_DSI,
343 config_regs + DISP_REG_CONFIG_OUT_SEL);
344 writel_relaxed(DSI_SEL_IN_RDMA,
345 config_regs + DISP_REG_CONFIG_DSI_SEL);
346 writel_relaxed(DPI_SEL_IN_BLS,
347 config_regs + DISP_REG_CONFIG_DPI_SEL);
348 }
349}
350
351void mtk_ddp_add_comp_to_path(void __iomem *config_regs,
352 enum mtk_ddp_comp_id cur,
353 enum mtk_ddp_comp_id next)
354{
355 unsigned int addr, value, reg;
356
357 value = mtk_ddp_mout_en(cur, next, &addr);
358 if (value) {
359 reg = readl_relaxed(config_regs + addr) | value;
360 writel_relaxed(reg, config_regs + addr);
361 }
362
363 mtk_ddp_sout_sel(config_regs, cur, next);
364
365 value = mtk_ddp_sel_in(cur, next, &addr);
366 if (value) {
367 reg = readl_relaxed(config_regs + addr) | value;
368 writel_relaxed(reg, config_regs + addr);
369 }
370}
371
372void mtk_ddp_remove_comp_from_path(void __iomem *config_regs,
373 enum mtk_ddp_comp_id cur,
374 enum mtk_ddp_comp_id next)
375{
376 unsigned int addr, value, reg;
377
378 value = mtk_ddp_mout_en(cur, next, &addr);
379 if (value) {
380 reg = readl_relaxed(config_regs + addr) & ~value;
381 writel_relaxed(reg, config_regs + addr);
382 }
383
384 value = mtk_ddp_sel_in(cur, next, &addr);
385 if (value) {
386 reg = readl_relaxed(config_regs + addr) & ~value;
387 writel_relaxed(reg, config_regs + addr);
388 }
389}
390
391struct mtk_disp_mutex *mtk_disp_mutex_get(struct device *dev, unsigned int id)
392{
393 struct mtk_ddp *ddp = dev_get_drvdata(dev);
394
395 if (id >= 10)
396 return ERR_PTR(-EINVAL);
397 if (ddp->mutex[id].claimed)
398 return ERR_PTR(-EBUSY);
399
400 ddp->mutex[id].claimed = true;
401
402 return &ddp->mutex[id];
403}
404
405void mtk_disp_mutex_put(struct mtk_disp_mutex *mutex)
406{
407 struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
408 mutex[mutex->id]);
409
410 WARN_ON(&ddp->mutex[mutex->id] != mutex);
411
412 mutex->claimed = false;
413}
414
415int mtk_disp_mutex_prepare(struct mtk_disp_mutex *mutex)
416{
417 struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
418 mutex[mutex->id]);
419 return clk_prepare_enable(ddp->clk);
420}
421
422void mtk_disp_mutex_unprepare(struct mtk_disp_mutex *mutex)
423{
424 struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
425 mutex[mutex->id]);
426 clk_disable_unprepare(ddp->clk);
427}
428
429void mtk_disp_mutex_add_comp(struct mtk_disp_mutex *mutex,
430 enum mtk_ddp_comp_id id)
431{
432 struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
433 mutex[mutex->id]);
434 unsigned int reg;
435 unsigned int offset;
436
437 WARN_ON(&ddp->mutex[mutex->id] != mutex);
438
439 switch (id) {
440 case DDP_COMPONENT_DSI0:
441 reg = MUTEX_SOF_DSI0;
442 break;
443 case DDP_COMPONENT_DSI1:
444 reg = MUTEX_SOF_DSI0;
445 break;
446 case DDP_COMPONENT_DSI2:
447 reg = MUTEX_SOF_DSI2;
448 break;
449 case DDP_COMPONENT_DSI3:
450 reg = MUTEX_SOF_DSI3;
451 break;
452 case DDP_COMPONENT_DPI0:
453 reg = MUTEX_SOF_DPI0;
454 break;
455 case DDP_COMPONENT_DPI1:
456 reg = MUTEX_SOF_DPI1;
457 break;
458 default:
459 if (ddp->mutex_mod[id] < 32) {
460 offset = DISP_REG_MUTEX_MOD(mutex->id);
461 reg = readl_relaxed(ddp->regs + offset);
462 reg |= 1 << ddp->mutex_mod[id];
463 writel_relaxed(reg, ddp->regs + offset);
464 } else {
465 offset = DISP_REG_MUTEX_MOD2(mutex->id);
466 reg = readl_relaxed(ddp->regs + offset);
467 reg |= 1 << (ddp->mutex_mod[id] - 32);
468 writel_relaxed(reg, ddp->regs + offset);
469 }
470 return;
471 }
472
473 writel_relaxed(reg, ddp->regs + DISP_REG_MUTEX_SOF(mutex->id));
474}
475
476void mtk_disp_mutex_remove_comp(struct mtk_disp_mutex *mutex,
477 enum mtk_ddp_comp_id id)
478{
479 struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
480 mutex[mutex->id]);
481 unsigned int reg;
482 unsigned int offset;
483
484 WARN_ON(&ddp->mutex[mutex->id] != mutex);
485
486 switch (id) {
487 case DDP_COMPONENT_DSI0:
488 case DDP_COMPONENT_DSI1:
489 case DDP_COMPONENT_DSI2:
490 case DDP_COMPONENT_DSI3:
491 case DDP_COMPONENT_DPI0:
492 case DDP_COMPONENT_DPI1:
493 writel_relaxed(MUTEX_SOF_SINGLE_MODE,
494 ddp->regs + DISP_REG_MUTEX_SOF(mutex->id));
495 break;
496 default:
497 if (ddp->mutex_mod[id] < 32) {
498 offset = DISP_REG_MUTEX_MOD(mutex->id);
499 reg = readl_relaxed(ddp->regs + offset);
500 reg &= ~(1 << ddp->mutex_mod[id]);
501 writel_relaxed(reg, ddp->regs + offset);
502 } else {
503 offset = DISP_REG_MUTEX_MOD2(mutex->id);
504 reg = readl_relaxed(ddp->regs + offset);
505 reg &= ~(1 << (ddp->mutex_mod[id] - 32));
506 writel_relaxed(reg, ddp->regs + offset);
507 }
508 break;
509 }
510}
511
512void mtk_disp_mutex_enable(struct mtk_disp_mutex *mutex)
513{
514 struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
515 mutex[mutex->id]);
516
517 WARN_ON(&ddp->mutex[mutex->id] != mutex);
518
519 writel(1, ddp->regs + DISP_REG_MUTEX_EN(mutex->id));
520}
521
522void mtk_disp_mutex_disable(struct mtk_disp_mutex *mutex)
523{
524 struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
525 mutex[mutex->id]);
526
527 WARN_ON(&ddp->mutex[mutex->id] != mutex);
528
529 writel(0, ddp->regs + DISP_REG_MUTEX_EN(mutex->id));
530}
531
532void mtk_disp_mutex_acquire(struct mtk_disp_mutex *mutex)
533{
534 struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
535 mutex[mutex->id]);
536 u32 tmp;
537
538 writel(1, ddp->regs + DISP_REG_MUTEX_EN(mutex->id));
539 writel(1, ddp->regs + DISP_REG_MUTEX(mutex->id));
540 if (readl_poll_timeout_atomic(ddp->regs + DISP_REG_MUTEX(mutex->id),
541 tmp, tmp & INT_MUTEX, 1, 10000))
542 pr_err("could not acquire mutex %d\n", mutex->id);
543}
544
545void mtk_disp_mutex_release(struct mtk_disp_mutex *mutex)
546{
547 struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
548 mutex[mutex->id]);
549
550 writel(0, ddp->regs + DISP_REG_MUTEX(mutex->id));
551}
552
553static int mtk_ddp_probe(struct platform_device *pdev)
554{
555 struct device *dev = &pdev->dev;
556 struct mtk_ddp *ddp;
557 struct resource *regs;
558 int i;
559
560 ddp = devm_kzalloc(dev, sizeof(*ddp), GFP_KERNEL);
561 if (!ddp)
562 return -ENOMEM;
563
564 for (i = 0; i < 10; i++)
565 ddp->mutex[i].id = i;
566
567 ddp->clk = devm_clk_get(dev, NULL);
568 if (IS_ERR(ddp->clk)) {
569 dev_err(dev, "Failed to get clock\n");
570 return PTR_ERR(ddp->clk);
571 }
572
573 regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
574 ddp->regs = devm_ioremap_resource(dev, regs);
575 if (IS_ERR(ddp->regs)) {
576 dev_err(dev, "Failed to map mutex registers\n");
577 return PTR_ERR(ddp->regs);
578 }
579
580 ddp->mutex_mod = of_device_get_match_data(dev);
581
582 platform_set_drvdata(pdev, ddp);
583
584 return 0;
585}
586
587static int mtk_ddp_remove(struct platform_device *pdev)
588{
589 return 0;
590}
591
592static const struct of_device_id ddp_driver_dt_match[] = {
593 { .compatible = "mediatek,mt2701-disp-mutex", .data = mt2701_mutex_mod},
594 { .compatible = "mediatek,mt2712-disp-mutex", .data = mt2712_mutex_mod},
595 { .compatible = "mediatek,mt8173-disp-mutex", .data = mt8173_mutex_mod},
596 {},
597};
598MODULE_DEVICE_TABLE(of, ddp_driver_dt_match);
599
600struct platform_driver mtk_ddp_driver = {
601 .probe = mtk_ddp_probe,
602 .remove = mtk_ddp_remove,
603 .driver = {
604 .name = "mediatek-ddp",
605 .owner = THIS_MODULE,
606 .of_match_table = ddp_driver_dt_match,
607 },
608};