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
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 <sound/hdmi-codec.h>
21 #include <sound/msm_hdmi_audio.h>
24 void hdmi_set_mode(struct hdmi *hdmi, bool power_on)
29 spin_lock_irqsave(&hdmi->reg_lock, flags);
31 ctrl |= HDMI_CTRL_ENABLE;
32 if (!hdmi->hdmi_mode) {
33 ctrl |= HDMI_CTRL_HDMI;
34 hdmi_write(hdmi, REG_HDMI_CTRL, ctrl);
35 ctrl &= ~HDMI_CTRL_HDMI;
37 ctrl |= HDMI_CTRL_HDMI;
40 ctrl = HDMI_CTRL_HDMI;
43 hdmi_write(hdmi, REG_HDMI_CTRL, ctrl);
44 spin_unlock_irqrestore(&hdmi->reg_lock, flags);
45 DBG("HDMI Core: %s, HDMI_CTRL=0x%08x",
46 power_on ? "Enable" : "Disable", ctrl);
49 static irqreturn_t hdmi_irq(int irq, void *dev_id)
51 struct hdmi *hdmi = dev_id;
54 hdmi_connector_irq(hdmi->connector);
57 hdmi_i2c_irq(hdmi->i2c);
61 hdmi_hdcp_irq(hdmi->hdcp_ctrl);
68 static void hdmi_destroy(struct hdmi *hdmi)
70 struct hdmi_phy *phy = hdmi->phy;
73 * at this point, hpd has been disabled,
74 * after flush workq, it's safe to deinit hdcp
77 flush_workqueue(hdmi->workq);
78 destroy_workqueue(hdmi->workq);
80 hdmi_hdcp_destroy(hdmi);
82 phy->funcs->destroy(phy);
85 hdmi_i2c_destroy(hdmi->i2c);
87 platform_set_drvdata(hdmi->pdev, NULL);
90 /* construct hdmi at bind/probe time, grab all the resources. If
91 * we are to EPROBE_DEFER we want to do it here, rather than later
92 * at modeset_init() time
94 static struct hdmi *hdmi_init(struct platform_device *pdev)
96 struct hdmi_platform_config *config = pdev->dev.platform_data;
97 struct hdmi *hdmi = NULL;
101 hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
108 hdmi->config = config;
109 spin_lock_init(&hdmi->reg_lock);
111 /* not sure about which phy maps to which msm.. probably I miss some */
112 if (config->phy_init) {
113 hdmi->phy = config->phy_init(hdmi);
115 if (IS_ERR(hdmi->phy)) {
116 ret = PTR_ERR(hdmi->phy);
117 dev_err(&pdev->dev, "failed to load phy: %d\n", ret);
123 hdmi->mmio = msm_ioremap(pdev, config->mmio_name, "HDMI");
124 if (IS_ERR(hdmi->mmio)) {
125 ret = PTR_ERR(hdmi->mmio);
129 /* HDCP needs physical address of hdmi register */
130 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
132 hdmi->mmio_phy_addr = res->start;
134 hdmi->qfprom_mmio = msm_ioremap(pdev,
135 config->qfprom_mmio_name, "HDMI_QFPROM");
136 if (IS_ERR(hdmi->qfprom_mmio)) {
137 dev_info(&pdev->dev, "can't find qfprom resource\n");
138 hdmi->qfprom_mmio = NULL;
141 hdmi->hpd_regs = devm_kzalloc(&pdev->dev, sizeof(hdmi->hpd_regs[0]) *
142 config->hpd_reg_cnt, GFP_KERNEL);
143 if (!hdmi->hpd_regs) {
147 for (i = 0; i < config->hpd_reg_cnt; i++) {
148 struct regulator *reg;
150 reg = devm_regulator_get(&pdev->dev,
151 config->hpd_reg_names[i]);
154 dev_err(&pdev->dev, "failed to get hpd regulator: %s (%d)\n",
155 config->hpd_reg_names[i], ret);
159 hdmi->hpd_regs[i] = reg;
162 hdmi->pwr_regs = devm_kzalloc(&pdev->dev, sizeof(hdmi->pwr_regs[0]) *
163 config->pwr_reg_cnt, GFP_KERNEL);
164 if (!hdmi->pwr_regs) {
168 for (i = 0; i < config->pwr_reg_cnt; i++) {
169 struct regulator *reg;
171 reg = devm_regulator_get(&pdev->dev,
172 config->pwr_reg_names[i]);
175 dev_err(&pdev->dev, "failed to get pwr regulator: %s (%d)\n",
176 config->pwr_reg_names[i], ret);
180 hdmi->pwr_regs[i] = reg;
183 hdmi->hpd_clks = devm_kzalloc(&pdev->dev, sizeof(hdmi->hpd_clks[0]) *
184 config->hpd_clk_cnt, GFP_KERNEL);
185 if (!hdmi->hpd_clks) {
189 for (i = 0; i < config->hpd_clk_cnt; i++) {
192 clk = devm_clk_get(&pdev->dev, config->hpd_clk_names[i]);
195 dev_err(&pdev->dev, "failed to get hpd clk: %s (%d)\n",
196 config->hpd_clk_names[i], ret);
200 hdmi->hpd_clks[i] = clk;
203 hdmi->pwr_clks = devm_kzalloc(&pdev->dev, sizeof(hdmi->pwr_clks[0]) *
204 config->pwr_clk_cnt, GFP_KERNEL);
205 if (!hdmi->pwr_clks) {
209 for (i = 0; i < config->pwr_clk_cnt; i++) {
212 clk = devm_clk_get(&pdev->dev, config->pwr_clk_names[i]);
215 dev_err(&pdev->dev, "failed to get pwr clk: %s (%d)\n",
216 config->pwr_clk_names[i], ret);
220 hdmi->pwr_clks[i] = clk;
223 hdmi->workq = alloc_ordered_workqueue("msm_hdmi", 0);
225 hdmi->i2c = hdmi_i2c_init(hdmi);
226 if (IS_ERR(hdmi->i2c)) {
227 ret = PTR_ERR(hdmi->i2c);
228 dev_err(&pdev->dev, "failed to get i2c: %d\n", ret);
233 hdmi->hdcp_ctrl = hdmi_hdcp_init(hdmi);
234 if (IS_ERR(hdmi->hdcp_ctrl)) {
235 dev_warn(&pdev->dev, "failed to init hdcp: disabled\n");
236 hdmi->hdcp_ctrl = NULL;
248 /* Second part of initialization, the drm/kms level modeset_init,
249 * constructs/initializes mode objects, etc, is called from master
250 * driver (not hdmi sub-device's probe/bind!)
252 * Any resource (regulator/clk/etc) which could be missing at boot
253 * should be handled in hdmi_init() so that failure happens from
254 * hdmi sub-device's probe.
256 int hdmi_modeset_init(struct hdmi *hdmi,
257 struct drm_device *dev, struct drm_encoder *encoder)
259 struct msm_drm_private *priv = dev->dev_private;
260 struct platform_device *pdev = hdmi->pdev;
264 hdmi->encoder = encoder;
266 hdmi_audio_infoframe_init(&hdmi->audio.infoframe);
268 hdmi->bridge = hdmi_bridge_init(hdmi);
269 if (IS_ERR(hdmi->bridge)) {
270 ret = PTR_ERR(hdmi->bridge);
271 dev_err(dev->dev, "failed to create HDMI bridge: %d\n", ret);
276 hdmi->connector = hdmi_connector_init(hdmi);
277 if (IS_ERR(hdmi->connector)) {
278 ret = PTR_ERR(hdmi->connector);
279 dev_err(dev->dev, "failed to create HDMI connector: %d\n", ret);
280 hdmi->connector = NULL;
284 hdmi->irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
287 dev_err(dev->dev, "failed to get irq: %d\n", ret);
291 ret = devm_request_irq(&pdev->dev, hdmi->irq,
292 hdmi_irq, IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
295 dev_err(dev->dev, "failed to request IRQ%u: %d\n",
300 encoder->bridge = hdmi->bridge;
302 priv->bridges[priv->num_bridges++] = hdmi->bridge;
303 priv->connectors[priv->num_connectors++] = hdmi->connector;
305 platform_set_drvdata(pdev, hdmi);
310 /* bridge is normally destroyed by drm: */
312 hdmi_bridge_destroy(hdmi->bridge);
315 if (hdmi->connector) {
316 hdmi->connector->funcs->destroy(hdmi->connector);
317 hdmi->connector = NULL;
327 #include <linux/of_gpio.h>
329 #define HDMI_CFG(item, entry) \
330 .item ## _names = item ##_names_ ## entry, \
331 .item ## _cnt = ARRAY_SIZE(item ## _names_ ## entry)
333 static const char *pwr_reg_names_none[] = {};
334 static const char *hpd_reg_names_none[] = {};
336 static struct hdmi_platform_config hdmi_tx_8660_config = {
337 .phy_init = hdmi_phy_8x60_init,
340 static const char *hpd_reg_names_8960[] = {"core-vdda", "hdmi-mux"};
341 static const char *hpd_clk_names_8960[] = {"core_clk", "master_iface_clk", "slave_iface_clk"};
343 static struct hdmi_platform_config hdmi_tx_8960_config = {
344 .phy_init = hdmi_phy_8960_init,
345 HDMI_CFG(hpd_reg, 8960),
346 HDMI_CFG(hpd_clk, 8960),
349 static const char *pwr_reg_names_8x74[] = {"core-vdda", "core-vcc"};
350 static const char *hpd_reg_names_8x74[] = {"hpd-gdsc", "hpd-5v"};
351 static const char *pwr_clk_names_8x74[] = {"extp_clk", "alt_iface_clk"};
352 static const char *hpd_clk_names_8x74[] = {"iface_clk", "core_clk", "mdp_core_clk"};
353 static unsigned long hpd_clk_freq_8x74[] = {0, 19200000, 0};
355 static struct hdmi_platform_config hdmi_tx_8974_config = {
356 .phy_init = hdmi_phy_8x74_init,
357 HDMI_CFG(pwr_reg, 8x74),
358 HDMI_CFG(hpd_reg, 8x74),
359 HDMI_CFG(pwr_clk, 8x74),
360 HDMI_CFG(hpd_clk, 8x74),
361 .hpd_freq = hpd_clk_freq_8x74,
364 static const char *hpd_reg_names_8084[] = {"hpd-gdsc", "hpd-5v", "hpd-5v-en"};
366 static struct hdmi_platform_config hdmi_tx_8084_config = {
367 .phy_init = hdmi_phy_8x74_init,
368 HDMI_CFG(pwr_reg, 8x74),
369 HDMI_CFG(hpd_reg, 8084),
370 HDMI_CFG(pwr_clk, 8x74),
371 HDMI_CFG(hpd_clk, 8x74),
372 .hpd_freq = hpd_clk_freq_8x74,
375 static struct hdmi_platform_config hdmi_tx_8994_config = {
376 .phy_init = NULL, /* nothing to do for this HDMI PHY 20nm */
377 HDMI_CFG(pwr_reg, 8x74),
378 HDMI_CFG(hpd_reg, none),
379 HDMI_CFG(pwr_clk, 8x74),
380 HDMI_CFG(hpd_clk, 8x74),
381 .hpd_freq = hpd_clk_freq_8x74,
384 static struct hdmi_platform_config hdmi_tx_8996_config = {
386 HDMI_CFG(pwr_reg, none),
387 HDMI_CFG(hpd_reg, none),
388 HDMI_CFG(pwr_clk, 8x74),
389 HDMI_CFG(hpd_clk, 8x74),
390 .hpd_freq = hpd_clk_freq_8x74,
393 static const struct of_device_id dt_match[] = {
394 { .compatible = "qcom,hdmi-tx-8996", .data = &hdmi_tx_8996_config },
395 { .compatible = "qcom,hdmi-tx-8994", .data = &hdmi_tx_8994_config },
396 { .compatible = "qcom,hdmi-tx-8084", .data = &hdmi_tx_8084_config },
397 { .compatible = "qcom,hdmi-tx-8974", .data = &hdmi_tx_8974_config },
398 { .compatible = "qcom,hdmi-tx-8960", .data = &hdmi_tx_8960_config },
399 { .compatible = "qcom,hdmi-tx-8660", .data = &hdmi_tx_8660_config },
404 static int get_gpio(struct device *dev, struct device_node *of_node, const char *name)
406 int gpio = of_get_named_gpio(of_node, name, 0);
409 snprintf(name2, sizeof(name2), "%s-gpio", name);
410 gpio = of_get_named_gpio(of_node, name2, 0);
412 DBG("failed to get gpio: %s (%d)", name, gpio);
420 static void msm_hdmi_register_audio_driver(struct hdmi *hdmi, struct device *dev);
421 static int hdmi_bind(struct device *dev, struct device *master, void *data)
423 struct drm_device *drm = dev_get_drvdata(master);
424 struct msm_drm_private *priv = drm->dev_private;
425 static struct hdmi_platform_config *hdmi_cfg;
428 struct device_node *of_node = dev->of_node;
429 const struct of_device_id *match;
431 match = of_match_node(dt_match, of_node);
432 if (match && match->data) {
433 hdmi_cfg = (struct hdmi_platform_config *)match->data;
434 DBG("hdmi phy: %s", match->compatible);
436 dev_err(dev, "unknown phy: %s\n", of_node->name);
440 hdmi_cfg->mmio_name = "core_physical";
441 hdmi_cfg->qfprom_mmio_name = "qfprom_physical";
442 hdmi_cfg->ddc_clk_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-ddc-clk");
443 hdmi_cfg->ddc_data_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-ddc-data");
444 hdmi_cfg->hpd_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-hpd");
445 hdmi_cfg->mux_en_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-mux-en");
446 hdmi_cfg->mux_sel_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-mux-sel");
447 hdmi_cfg->mux_lpm_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-mux-lpm");
450 static struct hdmi_platform_config config = {};
451 static const char *hpd_clk_names[] = {
452 "core_clk", "master_iface_clk", "slave_iface_clk",
454 if (cpu_is_apq8064()) {
455 static const char *hpd_reg_names[] = {"8921_hdmi_mvs"};
456 config.phy_init = hdmi_phy_8960_init;
457 config.hpd_reg_names = hpd_reg_names;
458 config.hpd_reg_cnt = ARRAY_SIZE(hpd_reg_names);
459 config.hpd_clk_names = hpd_clk_names;
460 config.hpd_clk_cnt = ARRAY_SIZE(hpd_clk_names);
461 config.ddc_clk_gpio = 70;
462 config.ddc_data_gpio = 71;
463 config.hpd_gpio = 72;
464 config.mux_en_gpio = -1;
465 config.mux_sel_gpio = -1;
466 } else if (cpu_is_msm8960() || cpu_is_msm8960ab()) {
467 static const char *hpd_reg_names[] = {"8921_hdmi_mvs"};
468 config.phy_init = hdmi_phy_8960_init;
469 config.hpd_reg_names = hpd_reg_names;
470 config.hpd_reg_cnt = ARRAY_SIZE(hpd_reg_names);
471 config.hpd_clk_names = hpd_clk_names;
472 config.hpd_clk_cnt = ARRAY_SIZE(hpd_clk_names);
473 config.ddc_clk_gpio = 100;
474 config.ddc_data_gpio = 101;
475 config.hpd_gpio = 102;
476 config.mux_en_gpio = -1;
477 config.mux_sel_gpio = -1;
478 } else if (cpu_is_msm8x60()) {
479 static const char *hpd_reg_names[] = {
480 "8901_hdmi_mvs", "8901_mpp0"
482 config.phy_init = hdmi_phy_8x60_init;
483 config.hpd_reg_names = hpd_reg_names;
484 config.hpd_reg_cnt = ARRAY_SIZE(hpd_reg_names);
485 config.hpd_clk_names = hpd_clk_names;
486 config.hpd_clk_cnt = ARRAY_SIZE(hpd_clk_names);
487 config.ddc_clk_gpio = 170;
488 config.ddc_data_gpio = 171;
489 config.hpd_gpio = 172;
490 config.mux_en_gpio = -1;
491 config.mux_sel_gpio = -1;
493 config.mmio_name = "hdmi_msm_hdmi_addr";
494 config.qfprom_mmio_name = "hdmi_msm_qfprom_addr";
498 dev->platform_data = hdmi_cfg;
500 hdmi = hdmi_init(to_platform_device(dev));
502 return PTR_ERR(hdmi);
504 msm_hdmi_register_audio_driver(hdmi, dev);
509 static void hdmi_unbind(struct device *dev, struct device *master,
512 struct drm_device *drm = dev_get_drvdata(master);
513 struct msm_drm_private *priv = drm->dev_private;
515 DRM_INFO("%s driver unbound to HDMI\n", HDMI_CODEC_DRV_NAME);
516 platform_device_unregister(priv->hdmi->audio_pdev);
517 hdmi_destroy(priv->hdmi);
522 static const struct component_ops hdmi_ops = {
524 .unbind = hdmi_unbind,
527 * HDMI audio codec callbacks
530 static int msm_hdmi_audio_hw_params(struct device *dev,
531 struct hdmi_codec_daifmt *daifmt,
532 struct hdmi_codec_params *params)
534 struct hdmi *hdmi = dev_get_drvdata(dev);
535 unsigned int chan;// = params->cea.channels;
536 unsigned int channel_allocation = 0;
538 unsigned int level_shift = 0; /* 0dB */
539 bool down_mix = false;
540 dev_dbg(dev, "%s: %u Hz, %d bit, %d channels\n", __func__,
541 params->sample_rate, params->sample_width, chan);
543 switch (params->cea.channels) {
545 channel_allocation = 0;
546 chan = MSM_HDMI_AUDIO_CHANNEL_2;
549 channel_allocation = 0;
550 chan = MSM_HDMI_AUDIO_CHANNEL_4;
553 channel_allocation = 0x0B;
554 chan = MSM_HDMI_AUDIO_CHANNEL_6;
557 channel_allocation = 0x1F;
558 chan = MSM_HDMI_AUDIO_CHANNEL_8;
561 //dev_err(hdmi->dev, "channel[%d] not supported!\n", chan);
565 switch (params->sample_rate) {
567 rate = HDMI_SAMPLE_RATE_32KHZ;
569 rate = HDMI_SAMPLE_RATE_48KHZ;
571 rate = HDMI_SAMPLE_RATE_48KHZ;
573 rate = HDMI_SAMPLE_RATE_88_2KHZ;
575 rate = HDMI_SAMPLE_RATE_96KHZ;
577 rate = HDMI_SAMPLE_RATE_176_4KHZ;
579 rate = HDMI_SAMPLE_RATE_192KHZ;
582 dev_err(dev, "rate[%d] not supported!\n",
583 params->sample_rate);
586 rate = HDMI_SAMPLE_RATE_48KHZ;
587 channel_allocation = 0;
590 hdmi_audio_set_sample_rate(hdmi, rate);
592 hdmi_audio_info_setup(hdmi, 1, chan,
593 channel_allocation, level_shift, down_mix);
600 static int msm_hdmi_audio_startup(struct device *dev,
601 void (*abort_cb)(struct device *dev))
603 struct hdmi *hdmi = dev_get_drvdata(dev);
605 dev_dbg(dev, "%s\n", __func__);
607 //msm_hdmi_audio_enable(hdmi);
612 static void msm_hdmi_audio_shutdown(struct device *dev)
614 struct hdmi *hdmi = dev_get_drvdata(dev);
616 dev_dbg(dev, "%s\n", __func__);
618 hdmi_audio_info_setup(hdmi, 0, 0, 0, 0, 0);
621 static const struct hdmi_codec_ops msm_hdmi_audio_codec_ops = {
622 .hw_params = msm_hdmi_audio_hw_params,
623 .audio_startup = msm_hdmi_audio_startup,
624 .audio_shutdown = msm_hdmi_audio_shutdown,
627 static void msm_hdmi_register_audio_driver(struct hdmi *hdmi, struct device *dev)
629 struct hdmi_codec_pdata codec_data = {
630 .ops = &msm_hdmi_audio_codec_ops,
631 .max_i2s_channels = 2,
634 //struct platform_device *pdev;
636 hdmi->audio_pdev = platform_device_register_data(dev, HDMI_CODEC_DRV_NAME,
637 PLATFORM_DEVID_AUTO, &codec_data,
639 if (IS_ERR(hdmi->audio_pdev))
642 DRM_INFO("%s driver bound to HDMI\n", HDMI_CODEC_DRV_NAME);
645 static int hdmi_dev_probe(struct platform_device *pdev)
647 return component_add(&pdev->dev, &hdmi_ops);
650 static int hdmi_dev_remove(struct platform_device *pdev)
652 component_del(&pdev->dev, &hdmi_ops);
656 static struct platform_driver hdmi_driver = {
657 .probe = hdmi_dev_probe,
658 .remove = hdmi_dev_remove,
661 .of_match_table = dt_match,
665 void __init hdmi_register(void)
667 platform_driver_register(&hdmi_driver);
670 void __exit hdmi_unregister(void)
672 platform_driver_unregister(&hdmi_driver);