dt-bindings: mtd: ingenic: Use standard ecc-engine property
[linux/fpc-iii.git] / drivers / gpu / drm / msm / hdmi / hdmi.c
blobe247d6942a49e12ff66789887fa3a49017079ac6
1 /*
2 * Copyright (c) 2014 The Linux Foundation. All rights reserved.
3 * Copyright (C) 2013 Red Hat
4 * Author: Rob Clark <robdclark@gmail.com>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published by
8 * the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
15 * You should have received a copy of the GNU General Public License along with
16 * this program. If not, see <http://www.gnu.org/licenses/>.
19 #include <linux/of_irq.h>
20 #include <linux/of_gpio.h>
22 #include <sound/hdmi-codec.h>
23 #include "hdmi.h"
25 void msm_hdmi_set_mode(struct hdmi *hdmi, bool power_on)
27 uint32_t ctrl = 0;
28 unsigned long flags;
30 spin_lock_irqsave(&hdmi->reg_lock, flags);
31 if (power_on) {
32 ctrl |= HDMI_CTRL_ENABLE;
33 if (!hdmi->hdmi_mode) {
34 ctrl |= HDMI_CTRL_HDMI;
35 hdmi_write(hdmi, REG_HDMI_CTRL, ctrl);
36 ctrl &= ~HDMI_CTRL_HDMI;
37 } else {
38 ctrl |= HDMI_CTRL_HDMI;
40 } else {
41 ctrl = HDMI_CTRL_HDMI;
44 hdmi_write(hdmi, REG_HDMI_CTRL, ctrl);
45 spin_unlock_irqrestore(&hdmi->reg_lock, flags);
46 DBG("HDMI Core: %s, HDMI_CTRL=0x%08x",
47 power_on ? "Enable" : "Disable", ctrl);
50 static irqreturn_t msm_hdmi_irq(int irq, void *dev_id)
52 struct hdmi *hdmi = dev_id;
54 /* Process HPD: */
55 msm_hdmi_connector_irq(hdmi->connector);
57 /* Process DDC: */
58 msm_hdmi_i2c_irq(hdmi->i2c);
60 /* Process HDCP: */
61 if (hdmi->hdcp_ctrl)
62 msm_hdmi_hdcp_irq(hdmi->hdcp_ctrl);
64 /* TODO audio.. */
66 return IRQ_HANDLED;
69 static void msm_hdmi_destroy(struct hdmi *hdmi)
72 * at this point, hpd has been disabled,
73 * after flush workq, it's safe to deinit hdcp
75 if (hdmi->workq) {
76 flush_workqueue(hdmi->workq);
77 destroy_workqueue(hdmi->workq);
79 msm_hdmi_hdcp_destroy(hdmi);
81 if (hdmi->phy_dev) {
82 put_device(hdmi->phy_dev);
83 hdmi->phy = NULL;
84 hdmi->phy_dev = NULL;
87 if (hdmi->i2c)
88 msm_hdmi_i2c_destroy(hdmi->i2c);
90 platform_set_drvdata(hdmi->pdev, NULL);
93 static int msm_hdmi_get_phy(struct hdmi *hdmi)
95 struct platform_device *pdev = hdmi->pdev;
96 struct platform_device *phy_pdev;
97 struct device_node *phy_node;
99 phy_node = of_parse_phandle(pdev->dev.of_node, "phys", 0);
100 if (!phy_node) {
101 DRM_DEV_ERROR(&pdev->dev, "cannot find phy device\n");
102 return -ENXIO;
105 phy_pdev = of_find_device_by_node(phy_node);
106 if (phy_pdev)
107 hdmi->phy = platform_get_drvdata(phy_pdev);
109 of_node_put(phy_node);
111 if (!phy_pdev || !hdmi->phy) {
112 DRM_DEV_ERROR(&pdev->dev, "phy driver is not ready\n");
113 return -EPROBE_DEFER;
116 hdmi->phy_dev = get_device(&phy_pdev->dev);
118 return 0;
121 /* construct hdmi at bind/probe time, grab all the resources. If
122 * we are to EPROBE_DEFER we want to do it here, rather than later
123 * at modeset_init() time
125 static struct hdmi *msm_hdmi_init(struct platform_device *pdev)
127 struct hdmi_platform_config *config = pdev->dev.platform_data;
128 struct hdmi *hdmi = NULL;
129 struct resource *res;
130 int i, ret;
132 hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
133 if (!hdmi) {
134 ret = -ENOMEM;
135 goto fail;
138 hdmi->pdev = pdev;
139 hdmi->config = config;
140 spin_lock_init(&hdmi->reg_lock);
142 hdmi->mmio = msm_ioremap(pdev, config->mmio_name, "HDMI");
143 if (IS_ERR(hdmi->mmio)) {
144 ret = PTR_ERR(hdmi->mmio);
145 goto fail;
148 /* HDCP needs physical address of hdmi register */
149 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
150 config->mmio_name);
151 hdmi->mmio_phy_addr = res->start;
153 hdmi->qfprom_mmio = msm_ioremap(pdev,
154 config->qfprom_mmio_name, "HDMI_QFPROM");
155 if (IS_ERR(hdmi->qfprom_mmio)) {
156 DRM_DEV_INFO(&pdev->dev, "can't find qfprom resource\n");
157 hdmi->qfprom_mmio = NULL;
160 hdmi->hpd_regs = devm_kcalloc(&pdev->dev,
161 config->hpd_reg_cnt,
162 sizeof(hdmi->hpd_regs[0]),
163 GFP_KERNEL);
164 if (!hdmi->hpd_regs) {
165 ret = -ENOMEM;
166 goto fail;
168 for (i = 0; i < config->hpd_reg_cnt; i++) {
169 struct regulator *reg;
171 reg = devm_regulator_get(&pdev->dev,
172 config->hpd_reg_names[i]);
173 if (IS_ERR(reg)) {
174 ret = PTR_ERR(reg);
175 DRM_DEV_ERROR(&pdev->dev, "failed to get hpd regulator: %s (%d)\n",
176 config->hpd_reg_names[i], ret);
177 goto fail;
180 hdmi->hpd_regs[i] = reg;
183 hdmi->pwr_regs = devm_kcalloc(&pdev->dev,
184 config->pwr_reg_cnt,
185 sizeof(hdmi->pwr_regs[0]),
186 GFP_KERNEL);
187 if (!hdmi->pwr_regs) {
188 ret = -ENOMEM;
189 goto fail;
191 for (i = 0; i < config->pwr_reg_cnt; i++) {
192 struct regulator *reg;
194 reg = devm_regulator_get(&pdev->dev,
195 config->pwr_reg_names[i]);
196 if (IS_ERR(reg)) {
197 ret = PTR_ERR(reg);
198 DRM_DEV_ERROR(&pdev->dev, "failed to get pwr regulator: %s (%d)\n",
199 config->pwr_reg_names[i], ret);
200 goto fail;
203 hdmi->pwr_regs[i] = reg;
206 hdmi->hpd_clks = devm_kcalloc(&pdev->dev,
207 config->hpd_clk_cnt,
208 sizeof(hdmi->hpd_clks[0]),
209 GFP_KERNEL);
210 if (!hdmi->hpd_clks) {
211 ret = -ENOMEM;
212 goto fail;
214 for (i = 0; i < config->hpd_clk_cnt; i++) {
215 struct clk *clk;
217 clk = msm_clk_get(pdev, config->hpd_clk_names[i]);
218 if (IS_ERR(clk)) {
219 ret = PTR_ERR(clk);
220 DRM_DEV_ERROR(&pdev->dev, "failed to get hpd clk: %s (%d)\n",
221 config->hpd_clk_names[i], ret);
222 goto fail;
225 hdmi->hpd_clks[i] = clk;
228 hdmi->pwr_clks = devm_kcalloc(&pdev->dev,
229 config->pwr_clk_cnt,
230 sizeof(hdmi->pwr_clks[0]),
231 GFP_KERNEL);
232 if (!hdmi->pwr_clks) {
233 ret = -ENOMEM;
234 goto fail;
236 for (i = 0; i < config->pwr_clk_cnt; i++) {
237 struct clk *clk;
239 clk = msm_clk_get(pdev, config->pwr_clk_names[i]);
240 if (IS_ERR(clk)) {
241 ret = PTR_ERR(clk);
242 DRM_DEV_ERROR(&pdev->dev, "failed to get pwr clk: %s (%d)\n",
243 config->pwr_clk_names[i], ret);
244 goto fail;
247 hdmi->pwr_clks[i] = clk;
250 pm_runtime_enable(&pdev->dev);
252 hdmi->workq = alloc_ordered_workqueue("msm_hdmi", 0);
254 hdmi->i2c = msm_hdmi_i2c_init(hdmi);
255 if (IS_ERR(hdmi->i2c)) {
256 ret = PTR_ERR(hdmi->i2c);
257 DRM_DEV_ERROR(&pdev->dev, "failed to get i2c: %d\n", ret);
258 hdmi->i2c = NULL;
259 goto fail;
262 ret = msm_hdmi_get_phy(hdmi);
263 if (ret) {
264 DRM_DEV_ERROR(&pdev->dev, "failed to get phy\n");
265 goto fail;
268 hdmi->hdcp_ctrl = msm_hdmi_hdcp_init(hdmi);
269 if (IS_ERR(hdmi->hdcp_ctrl)) {
270 dev_warn(&pdev->dev, "failed to init hdcp: disabled\n");
271 hdmi->hdcp_ctrl = NULL;
274 return hdmi;
276 fail:
277 if (hdmi)
278 msm_hdmi_destroy(hdmi);
280 return ERR_PTR(ret);
283 /* Second part of initialization, the drm/kms level modeset_init,
284 * constructs/initializes mode objects, etc, is called from master
285 * driver (not hdmi sub-device's probe/bind!)
287 * Any resource (regulator/clk/etc) which could be missing at boot
288 * should be handled in msm_hdmi_init() so that failure happens from
289 * hdmi sub-device's probe.
291 int msm_hdmi_modeset_init(struct hdmi *hdmi,
292 struct drm_device *dev, struct drm_encoder *encoder)
294 struct msm_drm_private *priv = dev->dev_private;
295 struct platform_device *pdev = hdmi->pdev;
296 int ret;
298 hdmi->dev = dev;
299 hdmi->encoder = encoder;
301 hdmi_audio_infoframe_init(&hdmi->audio.infoframe);
303 hdmi->bridge = msm_hdmi_bridge_init(hdmi);
304 if (IS_ERR(hdmi->bridge)) {
305 ret = PTR_ERR(hdmi->bridge);
306 DRM_DEV_ERROR(dev->dev, "failed to create HDMI bridge: %d\n", ret);
307 hdmi->bridge = NULL;
308 goto fail;
311 hdmi->connector = msm_hdmi_connector_init(hdmi);
312 if (IS_ERR(hdmi->connector)) {
313 ret = PTR_ERR(hdmi->connector);
314 DRM_DEV_ERROR(dev->dev, "failed to create HDMI connector: %d\n", ret);
315 hdmi->connector = NULL;
316 goto fail;
319 hdmi->irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
320 if (hdmi->irq < 0) {
321 ret = hdmi->irq;
322 DRM_DEV_ERROR(dev->dev, "failed to get irq: %d\n", ret);
323 goto fail;
326 ret = devm_request_irq(&pdev->dev, hdmi->irq,
327 msm_hdmi_irq, IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
328 "hdmi_isr", hdmi);
329 if (ret < 0) {
330 DRM_DEV_ERROR(dev->dev, "failed to request IRQ%u: %d\n",
331 hdmi->irq, ret);
332 goto fail;
335 ret = msm_hdmi_hpd_enable(hdmi->connector);
336 if (ret < 0) {
337 DRM_DEV_ERROR(&hdmi->pdev->dev, "failed to enable HPD: %d\n", ret);
338 goto fail;
341 encoder->bridge = hdmi->bridge;
343 priv->bridges[priv->num_bridges++] = hdmi->bridge;
344 priv->connectors[priv->num_connectors++] = hdmi->connector;
346 platform_set_drvdata(pdev, hdmi);
348 return 0;
350 fail:
351 /* bridge is normally destroyed by drm: */
352 if (hdmi->bridge) {
353 msm_hdmi_bridge_destroy(hdmi->bridge);
354 hdmi->bridge = NULL;
356 if (hdmi->connector) {
357 hdmi->connector->funcs->destroy(hdmi->connector);
358 hdmi->connector = NULL;
361 return ret;
365 * The hdmi device:
368 #define HDMI_CFG(item, entry) \
369 .item ## _names = item ##_names_ ## entry, \
370 .item ## _cnt = ARRAY_SIZE(item ## _names_ ## entry)
372 static const char *pwr_reg_names_none[] = {};
373 static const char *hpd_reg_names_none[] = {};
375 static struct hdmi_platform_config hdmi_tx_8660_config;
377 static const char *hpd_reg_names_8960[] = {"core-vdda", "hdmi-mux"};
378 static const char *hpd_clk_names_8960[] = {"core", "master_iface", "slave_iface"};
380 static struct hdmi_platform_config hdmi_tx_8960_config = {
381 HDMI_CFG(hpd_reg, 8960),
382 HDMI_CFG(hpd_clk, 8960),
385 static const char *pwr_reg_names_8x74[] = {"core-vdda", "core-vcc"};
386 static const char *hpd_reg_names_8x74[] = {"hpd-gdsc", "hpd-5v"};
387 static const char *pwr_clk_names_8x74[] = {"extp", "alt_iface"};
388 static const char *hpd_clk_names_8x74[] = {"iface", "core", "mdp_core"};
389 static unsigned long hpd_clk_freq_8x74[] = {0, 19200000, 0};
391 static struct hdmi_platform_config hdmi_tx_8974_config = {
392 HDMI_CFG(pwr_reg, 8x74),
393 HDMI_CFG(hpd_reg, 8x74),
394 HDMI_CFG(pwr_clk, 8x74),
395 HDMI_CFG(hpd_clk, 8x74),
396 .hpd_freq = hpd_clk_freq_8x74,
399 static const char *hpd_reg_names_8084[] = {"hpd-gdsc", "hpd-5v", "hpd-5v-en"};
401 static struct hdmi_platform_config hdmi_tx_8084_config = {
402 HDMI_CFG(pwr_reg, 8x74),
403 HDMI_CFG(hpd_reg, 8084),
404 HDMI_CFG(pwr_clk, 8x74),
405 HDMI_CFG(hpd_clk, 8x74),
406 .hpd_freq = hpd_clk_freq_8x74,
409 static struct hdmi_platform_config hdmi_tx_8994_config = {
410 HDMI_CFG(pwr_reg, 8x74),
411 HDMI_CFG(hpd_reg, none),
412 HDMI_CFG(pwr_clk, 8x74),
413 HDMI_CFG(hpd_clk, 8x74),
414 .hpd_freq = hpd_clk_freq_8x74,
417 static struct hdmi_platform_config hdmi_tx_8996_config = {
418 HDMI_CFG(pwr_reg, none),
419 HDMI_CFG(hpd_reg, none),
420 HDMI_CFG(pwr_clk, 8x74),
421 HDMI_CFG(hpd_clk, 8x74),
422 .hpd_freq = hpd_clk_freq_8x74,
425 static const struct {
426 const char *name;
427 const bool output;
428 const int value;
429 const char *label;
430 } msm_hdmi_gpio_pdata[] = {
431 { "qcom,hdmi-tx-ddc-clk", true, 1, "HDMI_DDC_CLK" },
432 { "qcom,hdmi-tx-ddc-data", true, 1, "HDMI_DDC_DATA" },
433 { "qcom,hdmi-tx-hpd", false, 1, "HDMI_HPD" },
434 { "qcom,hdmi-tx-mux-en", true, 1, "HDMI_MUX_EN" },
435 { "qcom,hdmi-tx-mux-sel", true, 0, "HDMI_MUX_SEL" },
436 { "qcom,hdmi-tx-mux-lpm", true, 1, "HDMI_MUX_LPM" },
439 static int msm_hdmi_get_gpio(struct device_node *of_node, const char *name)
441 int gpio;
443 /* try with the gpio names as in the table (downstream bindings) */
444 gpio = of_get_named_gpio(of_node, name, 0);
445 if (gpio < 0) {
446 char name2[32];
448 /* try with the gpio names as in the upstream bindings */
449 snprintf(name2, sizeof(name2), "%s-gpios", name);
450 gpio = of_get_named_gpio(of_node, name2, 0);
451 if (gpio < 0) {
452 char name3[32];
455 * try again after stripping out the "qcom,hdmi-tx"
456 * prefix. This is mainly to match "hpd-gpios" used
457 * in the upstream bindings
459 if (sscanf(name2, "qcom,hdmi-tx-%s", name3))
460 gpio = of_get_named_gpio(of_node, name3, 0);
463 if (gpio < 0) {
464 DBG("failed to get gpio: %s (%d)", name, gpio);
465 gpio = -1;
468 return gpio;
472 * HDMI audio codec callbacks
474 static int msm_hdmi_audio_hw_params(struct device *dev, void *data,
475 struct hdmi_codec_daifmt *daifmt,
476 struct hdmi_codec_params *params)
478 struct hdmi *hdmi = dev_get_drvdata(dev);
479 unsigned int chan;
480 unsigned int channel_allocation = 0;
481 unsigned int rate;
482 unsigned int level_shift = 0; /* 0dB */
483 bool down_mix = false;
485 DRM_DEV_DEBUG(dev, "%u Hz, %d bit, %d channels\n", params->sample_rate,
486 params->sample_width, params->cea.channels);
488 switch (params->cea.channels) {
489 case 2:
490 /* FR and FL speakers */
491 channel_allocation = 0;
492 chan = MSM_HDMI_AUDIO_CHANNEL_2;
493 break;
494 case 4:
495 /* FC, LFE, FR and FL speakers */
496 channel_allocation = 0x3;
497 chan = MSM_HDMI_AUDIO_CHANNEL_4;
498 break;
499 case 6:
500 /* RR, RL, FC, LFE, FR and FL speakers */
501 channel_allocation = 0x0B;
502 chan = MSM_HDMI_AUDIO_CHANNEL_6;
503 break;
504 case 8:
505 /* FRC, FLC, RR, RL, FC, LFE, FR and FL speakers */
506 channel_allocation = 0x1F;
507 chan = MSM_HDMI_AUDIO_CHANNEL_8;
508 break;
509 default:
510 return -EINVAL;
513 switch (params->sample_rate) {
514 case 32000:
515 rate = HDMI_SAMPLE_RATE_32KHZ;
516 break;
517 case 44100:
518 rate = HDMI_SAMPLE_RATE_44_1KHZ;
519 break;
520 case 48000:
521 rate = HDMI_SAMPLE_RATE_48KHZ;
522 break;
523 case 88200:
524 rate = HDMI_SAMPLE_RATE_88_2KHZ;
525 break;
526 case 96000:
527 rate = HDMI_SAMPLE_RATE_96KHZ;
528 break;
529 case 176400:
530 rate = HDMI_SAMPLE_RATE_176_4KHZ;
531 break;
532 case 192000:
533 rate = HDMI_SAMPLE_RATE_192KHZ;
534 break;
535 default:
536 DRM_DEV_ERROR(dev, "rate[%d] not supported!\n",
537 params->sample_rate);
538 return -EINVAL;
541 msm_hdmi_audio_set_sample_rate(hdmi, rate);
542 msm_hdmi_audio_info_setup(hdmi, 1, chan, channel_allocation,
543 level_shift, down_mix);
545 return 0;
548 static void msm_hdmi_audio_shutdown(struct device *dev, void *data)
550 struct hdmi *hdmi = dev_get_drvdata(dev);
552 msm_hdmi_audio_info_setup(hdmi, 0, 0, 0, 0, 0);
555 static const struct hdmi_codec_ops msm_hdmi_audio_codec_ops = {
556 .hw_params = msm_hdmi_audio_hw_params,
557 .audio_shutdown = msm_hdmi_audio_shutdown,
560 static struct hdmi_codec_pdata codec_data = {
561 .ops = &msm_hdmi_audio_codec_ops,
562 .max_i2s_channels = 8,
563 .i2s = 1,
566 static int msm_hdmi_register_audio_driver(struct hdmi *hdmi, struct device *dev)
568 hdmi->audio_pdev = platform_device_register_data(dev,
569 HDMI_CODEC_DRV_NAME,
570 PLATFORM_DEVID_AUTO,
571 &codec_data,
572 sizeof(codec_data));
573 return PTR_ERR_OR_ZERO(hdmi->audio_pdev);
576 static int msm_hdmi_bind(struct device *dev, struct device *master, void *data)
578 struct drm_device *drm = dev_get_drvdata(master);
579 struct msm_drm_private *priv = drm->dev_private;
580 struct hdmi_platform_config *hdmi_cfg;
581 struct hdmi *hdmi;
582 struct device_node *of_node = dev->of_node;
583 int i, err;
585 hdmi_cfg = (struct hdmi_platform_config *)
586 of_device_get_match_data(dev);
587 if (!hdmi_cfg) {
588 DRM_DEV_ERROR(dev, "unknown hdmi_cfg: %pOFn\n", of_node);
589 return -ENXIO;
592 hdmi_cfg->mmio_name = "core_physical";
593 hdmi_cfg->qfprom_mmio_name = "qfprom_physical";
595 for (i = 0; i < HDMI_MAX_NUM_GPIO; i++) {
596 hdmi_cfg->gpios[i].num = msm_hdmi_get_gpio(of_node,
597 msm_hdmi_gpio_pdata[i].name);
598 hdmi_cfg->gpios[i].output = msm_hdmi_gpio_pdata[i].output;
599 hdmi_cfg->gpios[i].value = msm_hdmi_gpio_pdata[i].value;
600 hdmi_cfg->gpios[i].label = msm_hdmi_gpio_pdata[i].label;
603 dev->platform_data = hdmi_cfg;
605 hdmi = msm_hdmi_init(to_platform_device(dev));
606 if (IS_ERR(hdmi))
607 return PTR_ERR(hdmi);
608 priv->hdmi = hdmi;
610 err = msm_hdmi_register_audio_driver(hdmi, dev);
611 if (err) {
612 DRM_ERROR("Failed to attach an audio codec %d\n", err);
613 hdmi->audio_pdev = NULL;
616 return 0;
619 static void msm_hdmi_unbind(struct device *dev, struct device *master,
620 void *data)
622 struct drm_device *drm = dev_get_drvdata(master);
623 struct msm_drm_private *priv = drm->dev_private;
624 if (priv->hdmi) {
625 if (priv->hdmi->audio_pdev)
626 platform_device_unregister(priv->hdmi->audio_pdev);
628 msm_hdmi_destroy(priv->hdmi);
629 priv->hdmi = NULL;
633 static const struct component_ops msm_hdmi_ops = {
634 .bind = msm_hdmi_bind,
635 .unbind = msm_hdmi_unbind,
638 static int msm_hdmi_dev_probe(struct platform_device *pdev)
640 return component_add(&pdev->dev, &msm_hdmi_ops);
643 static int msm_hdmi_dev_remove(struct platform_device *pdev)
645 component_del(&pdev->dev, &msm_hdmi_ops);
646 return 0;
649 static const struct of_device_id msm_hdmi_dt_match[] = {
650 { .compatible = "qcom,hdmi-tx-8996", .data = &hdmi_tx_8996_config },
651 { .compatible = "qcom,hdmi-tx-8994", .data = &hdmi_tx_8994_config },
652 { .compatible = "qcom,hdmi-tx-8084", .data = &hdmi_tx_8084_config },
653 { .compatible = "qcom,hdmi-tx-8974", .data = &hdmi_tx_8974_config },
654 { .compatible = "qcom,hdmi-tx-8960", .data = &hdmi_tx_8960_config },
655 { .compatible = "qcom,hdmi-tx-8660", .data = &hdmi_tx_8660_config },
659 static struct platform_driver msm_hdmi_driver = {
660 .probe = msm_hdmi_dev_probe,
661 .remove = msm_hdmi_dev_remove,
662 .driver = {
663 .name = "hdmi_msm",
664 .of_match_table = msm_hdmi_dt_match,
668 void __init msm_hdmi_register(void)
670 msm_hdmi_phy_driver_register();
671 platform_driver_register(&msm_hdmi_driver);
674 void __exit msm_hdmi_unregister(void)
676 platform_driver_unregister(&msm_hdmi_driver);
677 msm_hdmi_phy_driver_unregister();