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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2016 Broadcom
4 */
5
6/**
7 * DOC: VC4 SDTV module
8 *
9 * The VEC encoder generates PAL or NTSC composite video output.
10 *
11 * TV mode selection is done by an atomic property on the encoder,
12 * because a drm_mode_modeinfo is insufficient to distinguish between
13 * PAL and PAL-M or NTSC and NTSC-J.
14 */
15
16#include <drm/drm_atomic_helper.h>
17#include <drm/drm_edid.h>
18#include <drm/drm_panel.h>
19#include <drm/drm_probe_helper.h>
20#include <drm/drm_simple_kms_helper.h>
21#include <linux/clk.h>
22#include <linux/component.h>
23#include <linux/of_graph.h>
24#include <linux/of_platform.h>
25#include <linux/pm_runtime.h>
26
27#include "vc4_drv.h"
28#include "vc4_regs.h"
29
30/* WSE Registers */
31#define VEC_WSE_RESET 0xc0
32
33#define VEC_WSE_CONTROL 0xc4
34#define VEC_WSE_WSS_ENABLE BIT(7)
35
36#define VEC_WSE_WSS_DATA 0xc8
37#define VEC_WSE_VPS_DATA1 0xcc
38#define VEC_WSE_VPS_CONTROL 0xd0
39
40/* VEC Registers */
41#define VEC_REVID 0x100
42
43#define VEC_CONFIG0 0x104
44#define VEC_CONFIG0_YDEL_MASK GENMASK(28, 26)
45#define VEC_CONFIG0_YDEL(x) ((x) << 26)
46#define VEC_CONFIG0_CDEL_MASK GENMASK(25, 24)
47#define VEC_CONFIG0_CDEL(x) ((x) << 24)
48#define VEC_CONFIG0_PBPR_FIL BIT(18)
49#define VEC_CONFIG0_CHROMA_GAIN_MASK GENMASK(17, 16)
50#define VEC_CONFIG0_CHROMA_GAIN_UNITY (0 << 16)
51#define VEC_CONFIG0_CHROMA_GAIN_1_32 (1 << 16)
52#define VEC_CONFIG0_CHROMA_GAIN_1_16 (2 << 16)
53#define VEC_CONFIG0_CHROMA_GAIN_1_8 (3 << 16)
54#define VEC_CONFIG0_CBURST_GAIN_MASK GENMASK(14, 13)
55#define VEC_CONFIG0_CBURST_GAIN_UNITY (0 << 13)
56#define VEC_CONFIG0_CBURST_GAIN_1_128 (1 << 13)
57#define VEC_CONFIG0_CBURST_GAIN_1_64 (2 << 13)
58#define VEC_CONFIG0_CBURST_GAIN_1_32 (3 << 13)
59#define VEC_CONFIG0_CHRBW1 BIT(11)
60#define VEC_CONFIG0_CHRBW0 BIT(10)
61#define VEC_CONFIG0_SYNCDIS BIT(9)
62#define VEC_CONFIG0_BURDIS BIT(8)
63#define VEC_CONFIG0_CHRDIS BIT(7)
64#define VEC_CONFIG0_PDEN BIT(6)
65#define VEC_CONFIG0_YCDELAY BIT(4)
66#define VEC_CONFIG0_RAMPEN BIT(2)
67#define VEC_CONFIG0_YCDIS BIT(2)
68#define VEC_CONFIG0_STD_MASK GENMASK(1, 0)
69#define VEC_CONFIG0_NTSC_STD 0
70#define VEC_CONFIG0_PAL_BDGHI_STD 1
71#define VEC_CONFIG0_PAL_N_STD 3
72
73#define VEC_SCHPH 0x108
74#define VEC_SOFT_RESET 0x10c
75#define VEC_CLMP0_START 0x144
76#define VEC_CLMP0_END 0x148
77#define VEC_FREQ3_2 0x180
78#define VEC_FREQ1_0 0x184
79
80#define VEC_CONFIG1 0x188
81#define VEC_CONFIG_VEC_RESYNC_OFF BIT(18)
82#define VEC_CONFIG_RGB219 BIT(17)
83#define VEC_CONFIG_CBAR_EN BIT(16)
84#define VEC_CONFIG_TC_OBB BIT(15)
85#define VEC_CONFIG1_OUTPUT_MODE_MASK GENMASK(12, 10)
86#define VEC_CONFIG1_C_Y_CVBS (0 << 10)
87#define VEC_CONFIG1_CVBS_Y_C (1 << 10)
88#define VEC_CONFIG1_PR_Y_PB (2 << 10)
89#define VEC_CONFIG1_RGB (4 << 10)
90#define VEC_CONFIG1_Y_C_CVBS (5 << 10)
91#define VEC_CONFIG1_C_CVBS_Y (6 << 10)
92#define VEC_CONFIG1_C_CVBS_CVBS (7 << 10)
93#define VEC_CONFIG1_DIS_CHR BIT(9)
94#define VEC_CONFIG1_DIS_LUMA BIT(8)
95#define VEC_CONFIG1_YCBCR_IN BIT(6)
96#define VEC_CONFIG1_DITHER_TYPE_LFSR 0
97#define VEC_CONFIG1_DITHER_TYPE_COUNTER BIT(5)
98#define VEC_CONFIG1_DITHER_EN BIT(4)
99#define VEC_CONFIG1_CYDELAY BIT(3)
100#define VEC_CONFIG1_LUMADIS BIT(2)
101#define VEC_CONFIG1_COMPDIS BIT(1)
102#define VEC_CONFIG1_CUSTOM_FREQ BIT(0)
103
104#define VEC_CONFIG2 0x18c
105#define VEC_CONFIG2_PROG_SCAN BIT(15)
106#define VEC_CONFIG2_SYNC_ADJ_MASK GENMASK(14, 12)
107#define VEC_CONFIG2_SYNC_ADJ(x) (((x) / 2) << 12)
108#define VEC_CONFIG2_PBPR_EN BIT(10)
109#define VEC_CONFIG2_UV_DIG_DIS BIT(6)
110#define VEC_CONFIG2_RGB_DIG_DIS BIT(5)
111#define VEC_CONFIG2_TMUX_MASK GENMASK(3, 2)
112#define VEC_CONFIG2_TMUX_DRIVE0 (0 << 2)
113#define VEC_CONFIG2_TMUX_RG_COMP (1 << 2)
114#define VEC_CONFIG2_TMUX_UV_YC (2 << 2)
115#define VEC_CONFIG2_TMUX_SYNC_YC (3 << 2)
116
117#define VEC_INTERRUPT_CONTROL 0x190
118#define VEC_INTERRUPT_STATUS 0x194
119#define VEC_FCW_SECAM_B 0x198
120#define VEC_SECAM_GAIN_VAL 0x19c
121
122#define VEC_CONFIG3 0x1a0
123#define VEC_CONFIG3_HORIZ_LEN_STD (0 << 0)
124#define VEC_CONFIG3_HORIZ_LEN_MPEG1_SIF (1 << 0)
125#define VEC_CONFIG3_SHAPE_NON_LINEAR BIT(1)
126
127#define VEC_STATUS0 0x200
128#define VEC_MASK0 0x204
129
130#define VEC_CFG 0x208
131#define VEC_CFG_SG_MODE_MASK GENMASK(6, 5)
132#define VEC_CFG_SG_MODE(x) ((x) << 5)
133#define VEC_CFG_SG_EN BIT(4)
134#define VEC_CFG_VEC_EN BIT(3)
135#define VEC_CFG_MB_EN BIT(2)
136#define VEC_CFG_ENABLE BIT(1)
137#define VEC_CFG_TB_EN BIT(0)
138
139#define VEC_DAC_TEST 0x20c
140
141#define VEC_DAC_CONFIG 0x210
142#define VEC_DAC_CONFIG_LDO_BIAS_CTRL(x) ((x) << 24)
143#define VEC_DAC_CONFIG_DRIVER_CTRL(x) ((x) << 16)
144#define VEC_DAC_CONFIG_DAC_CTRL(x) (x)
145
146#define VEC_DAC_MISC 0x214
147#define VEC_DAC_MISC_VCD_CTRL_MASK GENMASK(31, 16)
148#define VEC_DAC_MISC_VCD_CTRL(x) ((x) << 16)
149#define VEC_DAC_MISC_VID_ACT BIT(8)
150#define VEC_DAC_MISC_VCD_PWRDN BIT(6)
151#define VEC_DAC_MISC_BIAS_PWRDN BIT(5)
152#define VEC_DAC_MISC_DAC_PWRDN BIT(2)
153#define VEC_DAC_MISC_LDO_PWRDN BIT(1)
154#define VEC_DAC_MISC_DAC_RST_N BIT(0)
155
156
157struct vc4_vec_variant {
158 u32 dac_config;
159};
160
161/* General VEC hardware state. */
162struct vc4_vec {
163 struct platform_device *pdev;
164 const struct vc4_vec_variant *variant;
165
166 struct drm_encoder *encoder;
167 struct drm_connector *connector;
168
169 void __iomem *regs;
170
171 struct clk *clock;
172
173 const struct vc4_vec_tv_mode *tv_mode;
174
175 struct debugfs_regset32 regset;
176};
177
178#define VEC_READ(offset) readl(vec->regs + (offset))
179#define VEC_WRITE(offset, val) writel(val, vec->regs + (offset))
180
181/* VC4 VEC encoder KMS struct */
182struct vc4_vec_encoder {
183 struct vc4_encoder base;
184 struct vc4_vec *vec;
185};
186
187static inline struct vc4_vec_encoder *
188to_vc4_vec_encoder(struct drm_encoder *encoder)
189{
190 return container_of(encoder, struct vc4_vec_encoder, base.base);
191}
192
193/* VC4 VEC connector KMS struct */
194struct vc4_vec_connector {
195 struct drm_connector base;
196 struct vc4_vec *vec;
197
198 /* Since the connector is attached to just the one encoder,
199 * this is the reference to it so we can do the best_encoder()
200 * hook.
201 */
202 struct drm_encoder *encoder;
203};
204
205enum vc4_vec_tv_mode_id {
206 VC4_VEC_TV_MODE_NTSC,
207 VC4_VEC_TV_MODE_NTSC_J,
208 VC4_VEC_TV_MODE_PAL,
209 VC4_VEC_TV_MODE_PAL_M,
210};
211
212struct vc4_vec_tv_mode {
213 const struct drm_display_mode *mode;
214 void (*mode_set)(struct vc4_vec *vec);
215};
216
217static const struct debugfs_reg32 vec_regs[] = {
218 VC4_REG32(VEC_WSE_CONTROL),
219 VC4_REG32(VEC_WSE_WSS_DATA),
220 VC4_REG32(VEC_WSE_VPS_DATA1),
221 VC4_REG32(VEC_WSE_VPS_CONTROL),
222 VC4_REG32(VEC_REVID),
223 VC4_REG32(VEC_CONFIG0),
224 VC4_REG32(VEC_SCHPH),
225 VC4_REG32(VEC_CLMP0_START),
226 VC4_REG32(VEC_CLMP0_END),
227 VC4_REG32(VEC_FREQ3_2),
228 VC4_REG32(VEC_FREQ1_0),
229 VC4_REG32(VEC_CONFIG1),
230 VC4_REG32(VEC_CONFIG2),
231 VC4_REG32(VEC_INTERRUPT_CONTROL),
232 VC4_REG32(VEC_INTERRUPT_STATUS),
233 VC4_REG32(VEC_FCW_SECAM_B),
234 VC4_REG32(VEC_SECAM_GAIN_VAL),
235 VC4_REG32(VEC_CONFIG3),
236 VC4_REG32(VEC_STATUS0),
237 VC4_REG32(VEC_MASK0),
238 VC4_REG32(VEC_CFG),
239 VC4_REG32(VEC_DAC_TEST),
240 VC4_REG32(VEC_DAC_CONFIG),
241 VC4_REG32(VEC_DAC_MISC),
242};
243
244static void vc4_vec_ntsc_mode_set(struct vc4_vec *vec)
245{
246 VEC_WRITE(VEC_CONFIG0, VEC_CONFIG0_NTSC_STD | VEC_CONFIG0_PDEN);
247 VEC_WRITE(VEC_CONFIG1, VEC_CONFIG1_C_CVBS_CVBS);
248}
249
250static void vc4_vec_ntsc_j_mode_set(struct vc4_vec *vec)
251{
252 VEC_WRITE(VEC_CONFIG0, VEC_CONFIG0_NTSC_STD);
253 VEC_WRITE(VEC_CONFIG1, VEC_CONFIG1_C_CVBS_CVBS);
254}
255
256static const struct drm_display_mode ntsc_mode = {
257 DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 13500,
258 720, 720 + 14, 720 + 14 + 64, 720 + 14 + 64 + 60, 0,
259 480, 480 + 3, 480 + 3 + 3, 480 + 3 + 3 + 16, 0,
260 DRM_MODE_FLAG_INTERLACE)
261};
262
263static void vc4_vec_pal_mode_set(struct vc4_vec *vec)
264{
265 VEC_WRITE(VEC_CONFIG0, VEC_CONFIG0_PAL_BDGHI_STD);
266 VEC_WRITE(VEC_CONFIG1, VEC_CONFIG1_C_CVBS_CVBS);
267}
268
269static void vc4_vec_pal_m_mode_set(struct vc4_vec *vec)
270{
271 VEC_WRITE(VEC_CONFIG0, VEC_CONFIG0_PAL_BDGHI_STD);
272 VEC_WRITE(VEC_CONFIG1,
273 VEC_CONFIG1_C_CVBS_CVBS | VEC_CONFIG1_CUSTOM_FREQ);
274 VEC_WRITE(VEC_FREQ3_2, 0x223b);
275 VEC_WRITE(VEC_FREQ1_0, 0x61d1);
276}
277
278static const struct drm_display_mode pal_mode = {
279 DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 13500,
280 720, 720 + 20, 720 + 20 + 64, 720 + 20 + 64 + 60, 0,
281 576, 576 + 2, 576 + 2 + 3, 576 + 2 + 3 + 20, 0,
282 DRM_MODE_FLAG_INTERLACE)
283};
284
285static const struct vc4_vec_tv_mode vc4_vec_tv_modes[] = {
286 [VC4_VEC_TV_MODE_NTSC] = {
287 .mode = &ntsc_mode,
288 .mode_set = vc4_vec_ntsc_mode_set,
289 },
290 [VC4_VEC_TV_MODE_NTSC_J] = {
291 .mode = &ntsc_mode,
292 .mode_set = vc4_vec_ntsc_j_mode_set,
293 },
294 [VC4_VEC_TV_MODE_PAL] = {
295 .mode = &pal_mode,
296 .mode_set = vc4_vec_pal_mode_set,
297 },
298 [VC4_VEC_TV_MODE_PAL_M] = {
299 .mode = &pal_mode,
300 .mode_set = vc4_vec_pal_m_mode_set,
301 },
302};
303
304static enum drm_connector_status
305vc4_vec_connector_detect(struct drm_connector *connector, bool force)
306{
307 return connector_status_unknown;
308}
309
310static void vc4_vec_connector_destroy(struct drm_connector *connector)
311{
312 drm_connector_unregister(connector);
313 drm_connector_cleanup(connector);
314}
315
316static int vc4_vec_connector_get_modes(struct drm_connector *connector)
317{
318 struct drm_connector_state *state = connector->state;
319 struct drm_display_mode *mode;
320
321 mode = drm_mode_duplicate(connector->dev,
322 vc4_vec_tv_modes[state->tv.mode].mode);
323 if (!mode) {
324 DRM_ERROR("Failed to create a new display mode\n");
325 return -ENOMEM;
326 }
327
328 drm_mode_probed_add(connector, mode);
329
330 return 1;
331}
332
333static const struct drm_connector_funcs vc4_vec_connector_funcs = {
334 .detect = vc4_vec_connector_detect,
335 .fill_modes = drm_helper_probe_single_connector_modes,
336 .destroy = vc4_vec_connector_destroy,
337 .reset = drm_atomic_helper_connector_reset,
338 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
339 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
340};
341
342static const struct drm_connector_helper_funcs vc4_vec_connector_helper_funcs = {
343 .get_modes = vc4_vec_connector_get_modes,
344};
345
346static struct drm_connector *vc4_vec_connector_init(struct drm_device *dev,
347 struct vc4_vec *vec)
348{
349 struct drm_connector *connector = NULL;
350 struct vc4_vec_connector *vec_connector;
351
352 vec_connector = devm_kzalloc(dev->dev, sizeof(*vec_connector),
353 GFP_KERNEL);
354 if (!vec_connector)
355 return ERR_PTR(-ENOMEM);
356
357 connector = &vec_connector->base;
358 connector->interlace_allowed = true;
359
360 vec_connector->encoder = vec->encoder;
361 vec_connector->vec = vec;
362
363 drm_connector_init(dev, connector, &vc4_vec_connector_funcs,
364 DRM_MODE_CONNECTOR_Composite);
365 drm_connector_helper_add(connector, &vc4_vec_connector_helper_funcs);
366
367 drm_object_attach_property(&connector->base,
368 dev->mode_config.tv_mode_property,
369 VC4_VEC_TV_MODE_NTSC);
370 vec->tv_mode = &vc4_vec_tv_modes[VC4_VEC_TV_MODE_NTSC];
371
372 drm_connector_attach_encoder(connector, vec->encoder);
373
374 return connector;
375}
376
377static void vc4_vec_encoder_disable(struct drm_encoder *encoder)
378{
379 struct vc4_vec_encoder *vc4_vec_encoder = to_vc4_vec_encoder(encoder);
380 struct vc4_vec *vec = vc4_vec_encoder->vec;
381 int ret;
382
383 VEC_WRITE(VEC_CFG, 0);
384 VEC_WRITE(VEC_DAC_MISC,
385 VEC_DAC_MISC_VCD_PWRDN |
386 VEC_DAC_MISC_BIAS_PWRDN |
387 VEC_DAC_MISC_DAC_PWRDN |
388 VEC_DAC_MISC_LDO_PWRDN);
389
390 clk_disable_unprepare(vec->clock);
391
392 ret = pm_runtime_put(&vec->pdev->dev);
393 if (ret < 0) {
394 DRM_ERROR("Failed to release power domain: %d\n", ret);
395 return;
396 }
397}
398
399static void vc4_vec_encoder_enable(struct drm_encoder *encoder)
400{
401 struct vc4_vec_encoder *vc4_vec_encoder = to_vc4_vec_encoder(encoder);
402 struct vc4_vec *vec = vc4_vec_encoder->vec;
403 int ret;
404
405 ret = pm_runtime_get_sync(&vec->pdev->dev);
406 if (ret < 0) {
407 DRM_ERROR("Failed to retain power domain: %d\n", ret);
408 return;
409 }
410
411 /*
412 * We need to set the clock rate each time we enable the encoder
413 * because there's a chance we share the same parent with the HDMI
414 * clock, and both drivers are requesting different rates.
415 * The good news is, these 2 encoders cannot be enabled at the same
416 * time, thus preventing incompatible rate requests.
417 */
418 ret = clk_set_rate(vec->clock, 108000000);
419 if (ret) {
420 DRM_ERROR("Failed to set clock rate: %d\n", ret);
421 return;
422 }
423
424 ret = clk_prepare_enable(vec->clock);
425 if (ret) {
426 DRM_ERROR("Failed to turn on core clock: %d\n", ret);
427 return;
428 }
429
430 /* Reset the different blocks */
431 VEC_WRITE(VEC_WSE_RESET, 1);
432 VEC_WRITE(VEC_SOFT_RESET, 1);
433
434 /* Disable the CGSM-A and WSE blocks */
435 VEC_WRITE(VEC_WSE_CONTROL, 0);
436
437 /* Write config common to all modes. */
438
439 /*
440 * Color subcarrier phase: phase = 360 * SCHPH / 256.
441 * 0x28 <=> 39.375 deg.
442 */
443 VEC_WRITE(VEC_SCHPH, 0x28);
444
445 /*
446 * Reset to default values.
447 */
448 VEC_WRITE(VEC_CLMP0_START, 0xac);
449 VEC_WRITE(VEC_CLMP0_END, 0xec);
450 VEC_WRITE(VEC_CONFIG2,
451 VEC_CONFIG2_UV_DIG_DIS | VEC_CONFIG2_RGB_DIG_DIS);
452 VEC_WRITE(VEC_CONFIG3, VEC_CONFIG3_HORIZ_LEN_STD);
453 VEC_WRITE(VEC_DAC_CONFIG, vec->variant->dac_config);
454
455 /* Mask all interrupts. */
456 VEC_WRITE(VEC_MASK0, 0);
457
458 vec->tv_mode->mode_set(vec);
459
460 VEC_WRITE(VEC_DAC_MISC,
461 VEC_DAC_MISC_VID_ACT | VEC_DAC_MISC_DAC_RST_N);
462 VEC_WRITE(VEC_CFG, VEC_CFG_VEC_EN);
463}
464
465
466static bool vc4_vec_encoder_mode_fixup(struct drm_encoder *encoder,
467 const struct drm_display_mode *mode,
468 struct drm_display_mode *adjusted_mode)
469{
470 return true;
471}
472
473static void vc4_vec_encoder_atomic_mode_set(struct drm_encoder *encoder,
474 struct drm_crtc_state *crtc_state,
475 struct drm_connector_state *conn_state)
476{
477 struct vc4_vec_encoder *vc4_vec_encoder = to_vc4_vec_encoder(encoder);
478 struct vc4_vec *vec = vc4_vec_encoder->vec;
479
480 vec->tv_mode = &vc4_vec_tv_modes[conn_state->tv.mode];
481}
482
483static int vc4_vec_encoder_atomic_check(struct drm_encoder *encoder,
484 struct drm_crtc_state *crtc_state,
485 struct drm_connector_state *conn_state)
486{
487 const struct vc4_vec_tv_mode *vec_mode;
488
489 vec_mode = &vc4_vec_tv_modes[conn_state->tv.mode];
490
491 if (conn_state->crtc &&
492 !drm_mode_equal(vec_mode->mode, &crtc_state->adjusted_mode))
493 return -EINVAL;
494
495 return 0;
496}
497
498static const struct drm_encoder_helper_funcs vc4_vec_encoder_helper_funcs = {
499 .disable = vc4_vec_encoder_disable,
500 .enable = vc4_vec_encoder_enable,
501 .mode_fixup = vc4_vec_encoder_mode_fixup,
502 .atomic_check = vc4_vec_encoder_atomic_check,
503 .atomic_mode_set = vc4_vec_encoder_atomic_mode_set,
504};
505
506static const struct vc4_vec_variant bcm2835_vec_variant = {
507 .dac_config = VEC_DAC_CONFIG_DAC_CTRL(0xc) |
508 VEC_DAC_CONFIG_DRIVER_CTRL(0xc) |
509 VEC_DAC_CONFIG_LDO_BIAS_CTRL(0x46)
510};
511
512static const struct vc4_vec_variant bcm2711_vec_variant = {
513 .dac_config = VEC_DAC_CONFIG_DAC_CTRL(0x0) |
514 VEC_DAC_CONFIG_DRIVER_CTRL(0x80) |
515 VEC_DAC_CONFIG_LDO_BIAS_CTRL(0x61)
516};
517
518static const struct of_device_id vc4_vec_dt_match[] = {
519 { .compatible = "brcm,bcm2835-vec", .data = &bcm2835_vec_variant },
520 { .compatible = "brcm,bcm2711-vec", .data = &bcm2711_vec_variant },
521 { /* sentinel */ },
522};
523
524static const char * const tv_mode_names[] = {
525 [VC4_VEC_TV_MODE_NTSC] = "NTSC",
526 [VC4_VEC_TV_MODE_NTSC_J] = "NTSC-J",
527 [VC4_VEC_TV_MODE_PAL] = "PAL",
528 [VC4_VEC_TV_MODE_PAL_M] = "PAL-M",
529};
530
531static int vc4_vec_bind(struct device *dev, struct device *master, void *data)
532{
533 struct platform_device *pdev = to_platform_device(dev);
534 struct drm_device *drm = dev_get_drvdata(master);
535 struct vc4_dev *vc4 = to_vc4_dev(drm);
536 struct vc4_vec *vec;
537 struct vc4_vec_encoder *vc4_vec_encoder;
538 int ret;
539
540 ret = drm_mode_create_tv_properties(drm, ARRAY_SIZE(tv_mode_names),
541 tv_mode_names);
542 if (ret)
543 return ret;
544
545 vec = devm_kzalloc(dev, sizeof(*vec), GFP_KERNEL);
546 if (!vec)
547 return -ENOMEM;
548
549 vc4_vec_encoder = devm_kzalloc(dev, sizeof(*vc4_vec_encoder),
550 GFP_KERNEL);
551 if (!vc4_vec_encoder)
552 return -ENOMEM;
553 vc4_vec_encoder->base.type = VC4_ENCODER_TYPE_VEC;
554 vc4_vec_encoder->vec = vec;
555 vec->encoder = &vc4_vec_encoder->base.base;
556
557 vec->pdev = pdev;
558 vec->variant = (const struct vc4_vec_variant *)
559 of_device_get_match_data(dev);
560 vec->regs = vc4_ioremap_regs(pdev, 0);
561 if (IS_ERR(vec->regs))
562 return PTR_ERR(vec->regs);
563 vec->regset.base = vec->regs;
564 vec->regset.regs = vec_regs;
565 vec->regset.nregs = ARRAY_SIZE(vec_regs);
566
567 vec->clock = devm_clk_get(dev, NULL);
568 if (IS_ERR(vec->clock)) {
569 ret = PTR_ERR(vec->clock);
570 if (ret != -EPROBE_DEFER)
571 DRM_ERROR("Failed to get clock: %d\n", ret);
572 return ret;
573 }
574
575 pm_runtime_enable(dev);
576
577 drm_simple_encoder_init(drm, vec->encoder, DRM_MODE_ENCODER_TVDAC);
578 drm_encoder_helper_add(vec->encoder, &vc4_vec_encoder_helper_funcs);
579
580 vec->connector = vc4_vec_connector_init(drm, vec);
581 if (IS_ERR(vec->connector)) {
582 ret = PTR_ERR(vec->connector);
583 goto err_destroy_encoder;
584 }
585
586 dev_set_drvdata(dev, vec);
587
588 vc4->vec = vec;
589
590 vc4_debugfs_add_regset32(drm, "vec_regs", &vec->regset);
591
592 return 0;
593
594err_destroy_encoder:
595 drm_encoder_cleanup(vec->encoder);
596 pm_runtime_disable(dev);
597
598 return ret;
599}
600
601static void vc4_vec_unbind(struct device *dev, struct device *master,
602 void *data)
603{
604 struct drm_device *drm = dev_get_drvdata(master);
605 struct vc4_dev *vc4 = to_vc4_dev(drm);
606 struct vc4_vec *vec = dev_get_drvdata(dev);
607
608 vc4_vec_connector_destroy(vec->connector);
609 drm_encoder_cleanup(vec->encoder);
610 pm_runtime_disable(dev);
611
612 vc4->vec = NULL;
613}
614
615static const struct component_ops vc4_vec_ops = {
616 .bind = vc4_vec_bind,
617 .unbind = vc4_vec_unbind,
618};
619
620static int vc4_vec_dev_probe(struct platform_device *pdev)
621{
622 return component_add(&pdev->dev, &vc4_vec_ops);
623}
624
625static int vc4_vec_dev_remove(struct platform_device *pdev)
626{
627 component_del(&pdev->dev, &vc4_vec_ops);
628 return 0;
629}
630
631struct platform_driver vc4_vec_driver = {
632 .probe = vc4_vec_dev_probe,
633 .remove = vc4_vec_dev_remove,
634 .driver = {
635 .name = "vc4_vec",
636 .of_match_table = vc4_vec_dt_match,
637 },
638};