2 * Copyright 2016 Linaro Ltd.
3 * Copyright 2016 ZTE Corporation.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
11 #include <linux/clk.h>
12 #include <linux/component.h>
13 #include <linux/delay.h>
14 #include <linux/err.h>
15 #include <linux/hdmi.h>
16 #include <linux/irq.h>
17 #include <linux/mfd/syscon.h>
18 #include <linux/module.h>
19 #include <linux/mutex.h>
20 #include <linux/of_device.h>
22 #include <drm/drm_atomic_helper.h>
23 #include <drm/drm_crtc_helper.h>
24 #include <drm/drm_edid.h>
25 #include <drm/drm_of.h>
28 #include <sound/hdmi-codec.h>
30 #include "zx_hdmi_regs.h"
33 #define ZX_HDMI_INFOFRAME_SIZE 31
34 #define DDC_SEGMENT_ADDR 0x30
37 struct i2c_adapter adap;
42 struct drm_connector connector;
43 struct drm_encoder encoder;
44 struct zx_hdmi_i2c *ddc;
46 struct drm_device *drm;
53 struct platform_device *audio_pdev;
56 #define to_zx_hdmi(x) container_of(x, struct zx_hdmi, x)
58 static inline u8 hdmi_readb(struct zx_hdmi *hdmi, u16 offset)
60 return readl_relaxed(hdmi->mmio + offset * 4);
63 static inline void hdmi_writeb(struct zx_hdmi *hdmi, u16 offset, u8 val)
65 writel_relaxed(val, hdmi->mmio + offset * 4);
68 static inline void hdmi_writeb_mask(struct zx_hdmi *hdmi, u16 offset,
73 tmp = hdmi_readb(hdmi, offset);
74 tmp = (tmp & ~mask) | (val & mask);
75 hdmi_writeb(hdmi, offset, tmp);
78 static int zx_hdmi_infoframe_trans(struct zx_hdmi *hdmi,
79 union hdmi_infoframe *frame, u8 fsel)
81 u8 buffer[ZX_HDMI_INFOFRAME_SIZE];
85 hdmi_writeb(hdmi, TPI_INFO_FSEL, fsel);
87 num = hdmi_infoframe_pack(frame, buffer, ZX_HDMI_INFOFRAME_SIZE);
89 DRM_DEV_ERROR(hdmi->dev, "failed to pack infoframe: %d\n", num);
93 for (i = 0; i < num; i++)
94 hdmi_writeb(hdmi, TPI_INFO_B0 + i, buffer[i]);
96 hdmi_writeb_mask(hdmi, TPI_INFO_EN, TPI_INFO_TRANS_RPT,
98 hdmi_writeb_mask(hdmi, TPI_INFO_EN, TPI_INFO_TRANS_EN,
104 static int zx_hdmi_config_video_vsi(struct zx_hdmi *hdmi,
105 struct drm_display_mode *mode)
107 union hdmi_infoframe frame;
110 ret = drm_hdmi_vendor_infoframe_from_display_mode(&frame.vendor.hdmi,
113 DRM_DEV_ERROR(hdmi->dev, "failed to get vendor infoframe: %d\n",
118 return zx_hdmi_infoframe_trans(hdmi, &frame, FSEL_VSIF);
121 static int zx_hdmi_config_video_avi(struct zx_hdmi *hdmi,
122 struct drm_display_mode *mode)
124 union hdmi_infoframe frame;
127 ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, mode, false);
129 DRM_DEV_ERROR(hdmi->dev, "failed to get avi infoframe: %d\n",
134 /* We always use YUV444 for HDMI output. */
135 frame.avi.colorspace = HDMI_COLORSPACE_YUV444;
137 return zx_hdmi_infoframe_trans(hdmi, &frame, FSEL_AVI);
140 static void zx_hdmi_encoder_mode_set(struct drm_encoder *encoder,
141 struct drm_display_mode *mode,
142 struct drm_display_mode *adj_mode)
144 struct zx_hdmi *hdmi = to_zx_hdmi(encoder);
146 if (hdmi->sink_is_hdmi) {
147 zx_hdmi_config_video_avi(hdmi, mode);
148 zx_hdmi_config_video_vsi(hdmi, mode);
152 static void zx_hdmi_phy_start(struct zx_hdmi *hdmi)
154 /* Copy from ZTE BSP code */
155 hdmi_writeb(hdmi, 0x222, 0x0);
156 hdmi_writeb(hdmi, 0x224, 0x4);
157 hdmi_writeb(hdmi, 0x909, 0x0);
158 hdmi_writeb(hdmi, 0x7b0, 0x90);
159 hdmi_writeb(hdmi, 0x7b1, 0x00);
160 hdmi_writeb(hdmi, 0x7b2, 0xa7);
161 hdmi_writeb(hdmi, 0x7b8, 0xaa);
162 hdmi_writeb(hdmi, 0x7b2, 0xa7);
163 hdmi_writeb(hdmi, 0x7b3, 0x0f);
164 hdmi_writeb(hdmi, 0x7b4, 0x0f);
165 hdmi_writeb(hdmi, 0x7b5, 0x55);
166 hdmi_writeb(hdmi, 0x7b7, 0x03);
167 hdmi_writeb(hdmi, 0x7b9, 0x12);
168 hdmi_writeb(hdmi, 0x7ba, 0x32);
169 hdmi_writeb(hdmi, 0x7bc, 0x68);
170 hdmi_writeb(hdmi, 0x7be, 0x40);
171 hdmi_writeb(hdmi, 0x7bf, 0x84);
172 hdmi_writeb(hdmi, 0x7c1, 0x0f);
173 hdmi_writeb(hdmi, 0x7c8, 0x02);
174 hdmi_writeb(hdmi, 0x7c9, 0x03);
175 hdmi_writeb(hdmi, 0x7ca, 0x40);
176 hdmi_writeb(hdmi, 0x7dc, 0x31);
177 hdmi_writeb(hdmi, 0x7e2, 0x04);
178 hdmi_writeb(hdmi, 0x7e0, 0x06);
179 hdmi_writeb(hdmi, 0x7cb, 0x68);
180 hdmi_writeb(hdmi, 0x7f9, 0x02);
181 hdmi_writeb(hdmi, 0x7b6, 0x02);
182 hdmi_writeb(hdmi, 0x7f3, 0x0);
185 static void zx_hdmi_hw_enable(struct zx_hdmi *hdmi)
188 hdmi_writeb_mask(hdmi, CLKPWD, CLKPWD_PDIDCK, CLKPWD_PDIDCK);
190 /* Enable HDMI for TX */
191 hdmi_writeb_mask(hdmi, FUNC_SEL, FUNC_HDMI_EN, FUNC_HDMI_EN);
193 /* Enable deep color packet */
194 hdmi_writeb_mask(hdmi, P2T_CTRL, P2T_DC_PKT_EN, P2T_DC_PKT_EN);
196 /* Enable HDMI/MHL mode for output */
197 hdmi_writeb_mask(hdmi, TEST_TXCTRL, TEST_TXCTRL_HDMI_MODE,
198 TEST_TXCTRL_HDMI_MODE);
200 /* Configure reg_qc_sel */
201 hdmi_writeb(hdmi, HDMICTL4, 0x3);
203 /* Enable interrupt */
204 hdmi_writeb_mask(hdmi, INTR1_MASK, INTR1_MONITOR_DETECT,
205 INTR1_MONITOR_DETECT);
208 zx_hdmi_phy_start(hdmi);
211 static void zx_hdmi_hw_disable(struct zx_hdmi *hdmi)
213 /* Disable interrupt */
214 hdmi_writeb_mask(hdmi, INTR1_MASK, INTR1_MONITOR_DETECT, 0);
216 /* Disable deep color packet */
217 hdmi_writeb_mask(hdmi, P2T_CTRL, P2T_DC_PKT_EN, P2T_DC_PKT_EN);
219 /* Disable HDMI for TX */
220 hdmi_writeb_mask(hdmi, FUNC_SEL, FUNC_HDMI_EN, 0);
223 hdmi_writeb_mask(hdmi, CLKPWD, CLKPWD_PDIDCK, 0);
226 static void zx_hdmi_encoder_enable(struct drm_encoder *encoder)
228 struct zx_hdmi *hdmi = to_zx_hdmi(encoder);
230 clk_prepare_enable(hdmi->cec_clk);
231 clk_prepare_enable(hdmi->osc_clk);
232 clk_prepare_enable(hdmi->xclk);
234 zx_hdmi_hw_enable(hdmi);
236 vou_inf_enable(VOU_HDMI, encoder->crtc);
239 static void zx_hdmi_encoder_disable(struct drm_encoder *encoder)
241 struct zx_hdmi *hdmi = to_zx_hdmi(encoder);
243 vou_inf_disable(VOU_HDMI, encoder->crtc);
245 zx_hdmi_hw_disable(hdmi);
247 clk_disable_unprepare(hdmi->xclk);
248 clk_disable_unprepare(hdmi->osc_clk);
249 clk_disable_unprepare(hdmi->cec_clk);
252 static const struct drm_encoder_helper_funcs zx_hdmi_encoder_helper_funcs = {
253 .enable = zx_hdmi_encoder_enable,
254 .disable = zx_hdmi_encoder_disable,
255 .mode_set = zx_hdmi_encoder_mode_set,
258 static const struct drm_encoder_funcs zx_hdmi_encoder_funcs = {
259 .destroy = drm_encoder_cleanup,
262 static int zx_hdmi_connector_get_modes(struct drm_connector *connector)
264 struct zx_hdmi *hdmi = to_zx_hdmi(connector);
268 edid = drm_get_edid(connector, &hdmi->ddc->adap);
272 hdmi->sink_is_hdmi = drm_detect_hdmi_monitor(edid);
273 hdmi->sink_has_audio = drm_detect_monitor_audio(edid);
274 drm_mode_connector_update_edid_property(connector, edid);
275 ret = drm_add_edid_modes(connector, edid);
281 static enum drm_mode_status
282 zx_hdmi_connector_mode_valid(struct drm_connector *connector,
283 struct drm_display_mode *mode)
288 static struct drm_connector_helper_funcs zx_hdmi_connector_helper_funcs = {
289 .get_modes = zx_hdmi_connector_get_modes,
290 .mode_valid = zx_hdmi_connector_mode_valid,
293 static enum drm_connector_status
294 zx_hdmi_connector_detect(struct drm_connector *connector, bool force)
296 struct zx_hdmi *hdmi = to_zx_hdmi(connector);
298 return (hdmi_readb(hdmi, TPI_HPD_RSEN) & TPI_HPD_CONNECTION) ?
299 connector_status_connected : connector_status_disconnected;
302 static const struct drm_connector_funcs zx_hdmi_connector_funcs = {
303 .fill_modes = drm_helper_probe_single_connector_modes,
304 .detect = zx_hdmi_connector_detect,
305 .destroy = drm_connector_cleanup,
306 .reset = drm_atomic_helper_connector_reset,
307 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
308 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
311 static int zx_hdmi_register(struct drm_device *drm, struct zx_hdmi *hdmi)
313 struct drm_encoder *encoder = &hdmi->encoder;
315 encoder->possible_crtcs = VOU_CRTC_MASK;
317 drm_encoder_init(drm, encoder, &zx_hdmi_encoder_funcs,
318 DRM_MODE_ENCODER_TMDS, NULL);
319 drm_encoder_helper_add(encoder, &zx_hdmi_encoder_helper_funcs);
321 hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD;
323 drm_connector_init(drm, &hdmi->connector, &zx_hdmi_connector_funcs,
324 DRM_MODE_CONNECTOR_HDMIA);
325 drm_connector_helper_add(&hdmi->connector,
326 &zx_hdmi_connector_helper_funcs);
328 drm_mode_connector_attach_encoder(&hdmi->connector, encoder);
333 static irqreturn_t zx_hdmi_irq_thread(int irq, void *dev_id)
335 struct zx_hdmi *hdmi = dev_id;
337 drm_helper_hpd_irq_event(hdmi->connector.dev);
342 static irqreturn_t zx_hdmi_irq_handler(int irq, void *dev_id)
344 struct zx_hdmi *hdmi = dev_id;
347 lstat = hdmi_readb(hdmi, L1_INTR_STAT);
349 /* Monitor detect/HPD interrupt */
350 if (lstat & L1_INTR_STAT_INTR1) {
353 stat = hdmi_readb(hdmi, INTR1_STAT);
354 hdmi_writeb(hdmi, INTR1_STAT, stat);
356 if (stat & INTR1_MONITOR_DETECT)
357 return IRQ_WAKE_THREAD;
363 static int zx_hdmi_audio_startup(struct device *dev, void *data)
365 struct zx_hdmi *hdmi = dev_get_drvdata(dev);
366 struct drm_encoder *encoder = &hdmi->encoder;
368 vou_inf_hdmi_audio_sel(encoder->crtc, VOU_HDMI_AUD_SPDIF);
373 static void zx_hdmi_audio_shutdown(struct device *dev, void *data)
375 struct zx_hdmi *hdmi = dev_get_drvdata(dev);
377 /* Disable audio input */
378 hdmi_writeb_mask(hdmi, AUD_EN, AUD_IN_EN, 0);
381 static inline int zx_hdmi_audio_get_n(unsigned int fs)
385 if (fs && (fs % 44100) == 0)
386 n = 6272 * (fs / 44100);
393 static int zx_hdmi_audio_hw_params(struct device *dev,
395 struct hdmi_codec_daifmt *daifmt,
396 struct hdmi_codec_params *params)
398 struct zx_hdmi *hdmi = dev_get_drvdata(dev);
399 struct hdmi_audio_infoframe *cea = ¶ms->cea;
400 union hdmi_infoframe frame;
403 /* We only support spdif for now */
404 if (daifmt->fmt != HDMI_SPDIF) {
405 DRM_DEV_ERROR(hdmi->dev, "invalid daifmt %d\n", daifmt->fmt);
409 switch (params->sample_width) {
411 hdmi_writeb_mask(hdmi, TPI_AUD_CONFIG, SPDIF_SAMPLE_SIZE_MASK,
412 SPDIF_SAMPLE_SIZE_16BIT);
415 hdmi_writeb_mask(hdmi, TPI_AUD_CONFIG, SPDIF_SAMPLE_SIZE_MASK,
416 SPDIF_SAMPLE_SIZE_20BIT);
419 hdmi_writeb_mask(hdmi, TPI_AUD_CONFIG, SPDIF_SAMPLE_SIZE_MASK,
420 SPDIF_SAMPLE_SIZE_24BIT);
423 DRM_DEV_ERROR(hdmi->dev, "invalid sample width %d\n",
424 params->sample_width);
428 /* CTS is calculated by hardware, and we only need to take care of N */
429 n = zx_hdmi_audio_get_n(params->sample_rate);
430 hdmi_writeb(hdmi, N_SVAL1, n & 0xff);
431 hdmi_writeb(hdmi, N_SVAL2, (n >> 8) & 0xff);
432 hdmi_writeb(hdmi, N_SVAL3, (n >> 16) & 0xf);
434 /* Enable spdif mode */
435 hdmi_writeb_mask(hdmi, AUD_MODE, SPDIF_EN, SPDIF_EN);
437 /* Enable audio input */
438 hdmi_writeb_mask(hdmi, AUD_EN, AUD_IN_EN, AUD_IN_EN);
440 memcpy(&frame.audio, cea, sizeof(*cea));
442 return zx_hdmi_infoframe_trans(hdmi, &frame, FSEL_AUDIO);
445 static int zx_hdmi_audio_digital_mute(struct device *dev, void *data,
448 struct zx_hdmi *hdmi = dev_get_drvdata(dev);
451 hdmi_writeb_mask(hdmi, TPI_AUD_CONFIG, TPI_AUD_MUTE,
454 hdmi_writeb_mask(hdmi, TPI_AUD_CONFIG, TPI_AUD_MUTE, 0);
459 static int zx_hdmi_audio_get_eld(struct device *dev, void *data,
460 uint8_t *buf, size_t len)
462 struct zx_hdmi *hdmi = dev_get_drvdata(dev);
463 struct drm_connector *connector = &hdmi->connector;
465 memcpy(buf, connector->eld, min(sizeof(connector->eld), len));
470 static const struct hdmi_codec_ops zx_hdmi_codec_ops = {
471 .audio_startup = zx_hdmi_audio_startup,
472 .hw_params = zx_hdmi_audio_hw_params,
473 .audio_shutdown = zx_hdmi_audio_shutdown,
474 .digital_mute = zx_hdmi_audio_digital_mute,
475 .get_eld = zx_hdmi_audio_get_eld,
478 static struct hdmi_codec_pdata zx_hdmi_codec_pdata = {
479 .ops = &zx_hdmi_codec_ops,
483 static int zx_hdmi_audio_register(struct zx_hdmi *hdmi)
485 struct platform_device *pdev;
487 pdev = platform_device_register_data(hdmi->dev, HDMI_CODEC_DRV_NAME,
489 &zx_hdmi_codec_pdata,
490 sizeof(zx_hdmi_codec_pdata));
492 return PTR_ERR(pdev);
494 hdmi->audio_pdev = pdev;
499 static int zx_hdmi_i2c_read(struct zx_hdmi *hdmi, struct i2c_msg *msg)
506 /* Bits [9:8] of bytes */
507 hdmi_writeb(hdmi, ZX_DDC_DIN_CNT2, (len >> 8) & 0xff);
508 /* Bits [7:0] of bytes */
509 hdmi_writeb(hdmi, ZX_DDC_DIN_CNT1, len & 0xff);
512 hdmi_writeb_mask(hdmi, ZX_DDC_CMD, DDC_CMD_MASK, DDC_CMD_CLEAR_FIFO);
514 /* Kick off the read */
515 hdmi_writeb_mask(hdmi, ZX_DDC_CMD, DDC_CMD_MASK,
516 DDC_CMD_SEQUENTIAL_READ);
521 /* FIFO needs some time to get ready */
522 usleep_range(500, 1000);
524 cnt = hdmi_readb(hdmi, ZX_DDC_DOUT_CNT) & DDC_DOUT_CNT_MASK;
527 DRM_DEV_ERROR(hdmi->dev,
528 "DDC FIFO read timed out!");
534 for (i = 0; i < cnt; i++)
535 *buf++ = hdmi_readb(hdmi, ZX_DDC_DATA);
542 static int zx_hdmi_i2c_write(struct zx_hdmi *hdmi, struct i2c_msg *msg)
545 * The DDC I2C adapter is only for reading EDID data, so we assume
546 * that the write to this adapter must be the EDID data offset.
548 if ((msg->len != 1) ||
549 ((msg->addr != DDC_ADDR) && (msg->addr != DDC_SEGMENT_ADDR)))
552 if (msg->addr == DDC_SEGMENT_ADDR)
553 hdmi_writeb(hdmi, ZX_DDC_SEGM, msg->addr << 1);
554 else if (msg->addr == DDC_ADDR)
555 hdmi_writeb(hdmi, ZX_DDC_ADDR, msg->addr << 1);
557 hdmi_writeb(hdmi, ZX_DDC_OFFSET, msg->buf[0]);
562 static int zx_hdmi_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
565 struct zx_hdmi *hdmi = i2c_get_adapdata(adap);
566 struct zx_hdmi_i2c *ddc = hdmi->ddc;
569 mutex_lock(&ddc->lock);
571 /* Enable DDC master access */
572 hdmi_writeb_mask(hdmi, TPI_DDC_MASTER_EN, HW_DDC_MASTER, HW_DDC_MASTER);
574 for (i = 0; i < num; i++) {
575 DRM_DEV_DEBUG(hdmi->dev,
576 "xfer: num: %d/%d, len: %d, flags: %#x\n",
577 i + 1, num, msgs[i].len, msgs[i].flags);
579 if (msgs[i].flags & I2C_M_RD)
580 ret = zx_hdmi_i2c_read(hdmi, &msgs[i]);
582 ret = zx_hdmi_i2c_write(hdmi, &msgs[i]);
591 /* Disable DDC master access */
592 hdmi_writeb_mask(hdmi, TPI_DDC_MASTER_EN, HW_DDC_MASTER, 0);
594 mutex_unlock(&ddc->lock);
599 static u32 zx_hdmi_i2c_func(struct i2c_adapter *adapter)
601 return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
604 static const struct i2c_algorithm zx_hdmi_algorithm = {
605 .master_xfer = zx_hdmi_i2c_xfer,
606 .functionality = zx_hdmi_i2c_func,
609 static int zx_hdmi_ddc_register(struct zx_hdmi *hdmi)
611 struct i2c_adapter *adap;
612 struct zx_hdmi_i2c *ddc;
615 ddc = devm_kzalloc(hdmi->dev, sizeof(*ddc), GFP_KERNEL);
620 mutex_init(&ddc->lock);
623 adap->owner = THIS_MODULE;
624 adap->class = I2C_CLASS_DDC;
625 adap->dev.parent = hdmi->dev;
626 adap->algo = &zx_hdmi_algorithm;
627 snprintf(adap->name, sizeof(adap->name), "zx hdmi i2c");
629 ret = i2c_add_adapter(adap);
631 DRM_DEV_ERROR(hdmi->dev, "failed to add I2C adapter: %d\n",
636 i2c_set_adapdata(adap, hdmi);
641 static int zx_hdmi_bind(struct device *dev, struct device *master, void *data)
643 struct platform_device *pdev = to_platform_device(dev);
644 struct drm_device *drm = data;
645 struct resource *res;
646 struct zx_hdmi *hdmi;
650 hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL);
657 dev_set_drvdata(dev, hdmi);
659 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
660 hdmi->mmio = devm_ioremap_resource(dev, res);
661 if (IS_ERR(hdmi->mmio)) {
662 ret = PTR_ERR(hdmi->mmio);
663 DRM_DEV_ERROR(dev, "failed to remap hdmi region: %d\n", ret);
667 irq = platform_get_irq(pdev, 0);
671 hdmi->cec_clk = devm_clk_get(hdmi->dev, "osc_cec");
672 if (IS_ERR(hdmi->cec_clk)) {
673 ret = PTR_ERR(hdmi->cec_clk);
674 DRM_DEV_ERROR(dev, "failed to get cec_clk: %d\n", ret);
678 hdmi->osc_clk = devm_clk_get(hdmi->dev, "osc_clk");
679 if (IS_ERR(hdmi->osc_clk)) {
680 ret = PTR_ERR(hdmi->osc_clk);
681 DRM_DEV_ERROR(dev, "failed to get osc_clk: %d\n", ret);
685 hdmi->xclk = devm_clk_get(hdmi->dev, "xclk");
686 if (IS_ERR(hdmi->xclk)) {
687 ret = PTR_ERR(hdmi->xclk);
688 DRM_DEV_ERROR(dev, "failed to get xclk: %d\n", ret);
692 ret = zx_hdmi_ddc_register(hdmi);
694 DRM_DEV_ERROR(dev, "failed to register ddc: %d\n", ret);
698 ret = zx_hdmi_audio_register(hdmi);
700 DRM_DEV_ERROR(dev, "failed to register audio: %d\n", ret);
704 ret = zx_hdmi_register(drm, hdmi);
706 DRM_DEV_ERROR(dev, "failed to register hdmi: %d\n", ret);
710 ret = devm_request_threaded_irq(dev, irq, zx_hdmi_irq_handler,
711 zx_hdmi_irq_thread, IRQF_SHARED,
712 dev_name(dev), hdmi);
714 DRM_DEV_ERROR(dev, "failed to request threaded irq: %d\n", ret);
721 static void zx_hdmi_unbind(struct device *dev, struct device *master,
724 struct zx_hdmi *hdmi = dev_get_drvdata(dev);
726 hdmi->connector.funcs->destroy(&hdmi->connector);
727 hdmi->encoder.funcs->destroy(&hdmi->encoder);
729 if (hdmi->audio_pdev)
730 platform_device_unregister(hdmi->audio_pdev);
733 static const struct component_ops zx_hdmi_component_ops = {
734 .bind = zx_hdmi_bind,
735 .unbind = zx_hdmi_unbind,
738 static int zx_hdmi_probe(struct platform_device *pdev)
740 return component_add(&pdev->dev, &zx_hdmi_component_ops);
743 static int zx_hdmi_remove(struct platform_device *pdev)
745 component_del(&pdev->dev, &zx_hdmi_component_ops);
749 static const struct of_device_id zx_hdmi_of_match[] = {
750 { .compatible = "zte,zx296718-hdmi", },
753 MODULE_DEVICE_TABLE(of, zx_hdmi_of_match);
755 struct platform_driver zx_hdmi_driver = {
756 .probe = zx_hdmi_probe,
757 .remove = zx_hdmi_remove,
760 .of_match_table = zx_hdmi_of_match,