xref: /openbmc/linux/drivers/gpu/drm/vc4/vc4_vec.c (revision 8dda2eac) 
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 
157 struct vc4_vec_variant {
158 	u32 dac_config;
159 };
160 
161 /* General VEC hardware state. */
162 struct 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 */
182 struct vc4_vec_encoder {
183 	struct vc4_encoder base;
184 	struct vc4_vec *vec;
185 };
186 
187 static inline struct vc4_vec_encoder *
188 to_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 */
194 struct 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 
205 enum 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 
212 struct vc4_vec_tv_mode {
213 	const struct drm_display_mode *mode;
214 	void (*mode_set)(struct vc4_vec *vec);
215 };
216 
217 static 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 
244 static 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 
250 static 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 
256 static 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 
263 static 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 
269 static 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 
278 static 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 
285 static 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 
304 static enum drm_connector_status
305 vc4_vec_connector_detect(struct drm_connector *connector, bool force)
306 {
307 	return connector_status_unknown;
308 }
309 
310 static void vc4_vec_connector_destroy(struct drm_connector *connector)
311 {
312 	drm_connector_unregister(connector);
313 	drm_connector_cleanup(connector);
314 }
315 
316 static 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 
333 static 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 
342 static const struct drm_connector_helper_funcs vc4_vec_connector_helper_funcs = {
343 	.get_modes = vc4_vec_connector_get_modes,
344 };
345 
346 static 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 
377 static 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 
399 static 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 
466 static 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 
473 static 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 
483 static 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 
498 static 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 
506 static 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 
512 static 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 
518 static 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 
524 static 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 
531 static 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 
594 err_destroy_encoder:
595 	drm_encoder_cleanup(vec->encoder);
596 	pm_runtime_disable(dev);
597 
598 	return ret;
599 }
600 
601 static 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 
615 static const struct component_ops vc4_vec_ops = {
616 	.bind   = vc4_vec_bind,
617 	.unbind = vc4_vec_unbind,
618 };
619 
620 static int vc4_vec_dev_probe(struct platform_device *pdev)
621 {
622 	return component_add(&pdev->dev, &vc4_vec_ops);
623 }
624 
625 static int vc4_vec_dev_remove(struct platform_device *pdev)
626 {
627 	component_del(&pdev->dev, &vc4_vec_ops);
628 	return 0;
629 }
630 
631 struct 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 };
639