1caab277bSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only
2c8afe684SRob Clark /*
35eba5d87SStephane Viau * Copyright (c) 2014 The Linux Foundation. All rights reserved.
4c8afe684SRob Clark * Copyright (C) 2013 Red Hat
5c8afe684SRob Clark * Author: Rob Clark <robdclark@gmail.com>
6c8afe684SRob Clark */
7c8afe684SRob Clark
8f6a8eacaSRob Clark #include <linux/of_irq.h>
91fd6a441SArchit Taneja #include <linux/of_gpio.h>
10*722d4f06SRob Herring #include <linux/of_platform.h>
11*722d4f06SRob Herring #include <linux/platform_device.h>
121fd6a441SArchit Taneja
13caa24223SDmitry Baryshkov #include <drm/drm_bridge_connector.h>
14a7977d5cSDmitry Baryshkov #include <drm/drm_of.h>
15caa24223SDmitry Baryshkov
16f1427016SSrinivas Kandagatla #include <sound/hdmi-codec.h>
17c8afe684SRob Clark #include "hdmi.h"
18c8afe684SRob Clark
msm_hdmi_set_mode(struct hdmi * hdmi,bool power_on)19fcda50c8SArnd Bergmann void msm_hdmi_set_mode(struct hdmi *hdmi, bool power_on)
20c8afe684SRob Clark {
21c8afe684SRob Clark uint32_t ctrl = 0;
22c6a57a50Sjilai wang unsigned long flags;
23c8afe684SRob Clark
24c6a57a50Sjilai wang spin_lock_irqsave(&hdmi->reg_lock, flags);
25c8afe684SRob Clark if (power_on) {
26c8afe684SRob Clark ctrl |= HDMI_CTRL_ENABLE;
27c8afe684SRob Clark if (!hdmi->hdmi_mode) {
28c8afe684SRob Clark ctrl |= HDMI_CTRL_HDMI;
29c8afe684SRob Clark hdmi_write(hdmi, REG_HDMI_CTRL, ctrl);
30c8afe684SRob Clark ctrl &= ~HDMI_CTRL_HDMI;
31c8afe684SRob Clark } else {
32c8afe684SRob Clark ctrl |= HDMI_CTRL_HDMI;
33c8afe684SRob Clark }
34c8afe684SRob Clark } else {
35c8afe684SRob Clark ctrl = HDMI_CTRL_HDMI;
36c8afe684SRob Clark }
37c8afe684SRob Clark
38c8afe684SRob Clark hdmi_write(hdmi, REG_HDMI_CTRL, ctrl);
39c6a57a50Sjilai wang spin_unlock_irqrestore(&hdmi->reg_lock, flags);
40c8afe684SRob Clark DBG("HDMI Core: %s, HDMI_CTRL=0x%08x",
41c8afe684SRob Clark power_on ? "Enable" : "Disable", ctrl);
42c8afe684SRob Clark }
43c8afe684SRob Clark
msm_hdmi_irq(int irq,void * dev_id)44fcda50c8SArnd Bergmann static irqreturn_t msm_hdmi_irq(int irq, void *dev_id)
45c8afe684SRob Clark {
46c8afe684SRob Clark struct hdmi *hdmi = dev_id;
47c8afe684SRob Clark
48c8afe684SRob Clark /* Process HPD: */
49caa24223SDmitry Baryshkov msm_hdmi_hpd_irq(hdmi->bridge);
50c8afe684SRob Clark
51c8afe684SRob Clark /* Process DDC: */
52fcda50c8SArnd Bergmann msm_hdmi_i2c_irq(hdmi->i2c);
53c8afe684SRob Clark
54c6a57a50Sjilai wang /* Process HDCP: */
55c6a57a50Sjilai wang if (hdmi->hdcp_ctrl)
56fcda50c8SArnd Bergmann msm_hdmi_hdcp_irq(hdmi->hdcp_ctrl);
57c6a57a50Sjilai wang
58c8afe684SRob Clark /* TODO audio.. */
59c8afe684SRob Clark
60c8afe684SRob Clark return IRQ_HANDLED;
61c8afe684SRob Clark }
62c8afe684SRob Clark
msm_hdmi_destroy(struct hdmi * hdmi)63fcda50c8SArnd Bergmann static void msm_hdmi_destroy(struct hdmi *hdmi)
64c8afe684SRob Clark {
65c6a57a50Sjilai wang /*
66c6a57a50Sjilai wang * at this point, hpd has been disabled,
67c6a57a50Sjilai wang * after flush workq, it's safe to deinit hdcp
68c6a57a50Sjilai wang */
69f8e7bce3SChristophe JAILLET if (hdmi->workq)
70c6a57a50Sjilai wang destroy_workqueue(hdmi->workq);
71fcda50c8SArnd Bergmann msm_hdmi_hdcp_destroy(hdmi);
72c8afe684SRob Clark
7343736546SDmitry Baryshkov if (hdmi->i2c)
7443736546SDmitry Baryshkov msm_hdmi_i2c_destroy(hdmi->i2c);
7543736546SDmitry Baryshkov }
7643736546SDmitry Baryshkov
msm_hdmi_put_phy(struct hdmi * hdmi)7743736546SDmitry Baryshkov static void msm_hdmi_put_phy(struct hdmi *hdmi)
7843736546SDmitry Baryshkov {
79e00012b2SArchit Taneja if (hdmi->phy_dev) {
80e00012b2SArchit Taneja put_device(hdmi->phy_dev);
81e00012b2SArchit Taneja hdmi->phy = NULL;
82e00012b2SArchit Taneja hdmi->phy_dev = NULL;
83e00012b2SArchit Taneja }
84c8afe684SRob Clark }
85c8afe684SRob Clark
msm_hdmi_get_phy(struct hdmi * hdmi)86fcda50c8SArnd Bergmann static int msm_hdmi_get_phy(struct hdmi *hdmi)
87e00012b2SArchit Taneja {
88e00012b2SArchit Taneja struct platform_device *pdev = hdmi->pdev;
89e00012b2SArchit Taneja struct platform_device *phy_pdev;
90e00012b2SArchit Taneja struct device_node *phy_node;
91e00012b2SArchit Taneja
92e00012b2SArchit Taneja phy_node = of_parse_phandle(pdev->dev.of_node, "phys", 0);
93e00012b2SArchit Taneja if (!phy_node) {
946a41da17SMamta Shukla DRM_DEV_ERROR(&pdev->dev, "cannot find phy device\n");
95e00012b2SArchit Taneja return -ENXIO;
96e00012b2SArchit Taneja }
97e00012b2SArchit Taneja
98e00012b2SArchit Taneja phy_pdev = of_find_device_by_node(phy_node);
99e00012b2SArchit Taneja of_node_put(phy_node);
100e00012b2SArchit Taneja
10143736546SDmitry Baryshkov if (!phy_pdev)
10243736546SDmitry Baryshkov return dev_err_probe(&pdev->dev, -EPROBE_DEFER, "phy driver is not ready\n");
10343736546SDmitry Baryshkov
10443736546SDmitry Baryshkov hdmi->phy = platform_get_drvdata(phy_pdev);
105774fe0cdSMiaoqian Lin if (!hdmi->phy) {
106774fe0cdSMiaoqian Lin put_device(&phy_pdev->dev);
10743736546SDmitry Baryshkov return dev_err_probe(&pdev->dev, -EPROBE_DEFER, "phy driver is not ready\n");
108774fe0cdSMiaoqian Lin }
109e00012b2SArchit Taneja
110248adb81SDmitry Baryshkov hdmi->phy_dev = &phy_pdev->dev;
111e00012b2SArchit Taneja
112e00012b2SArchit Taneja return 0;
113e00012b2SArchit Taneja }
114e00012b2SArchit Taneja
115067fef37SRob Clark /* construct hdmi at bind/probe time, grab all the resources. If
116067fef37SRob Clark * we are to EPROBE_DEFER we want to do it here, rather than later
117067fef37SRob Clark * at modeset_init() time
118067fef37SRob Clark */
msm_hdmi_init(struct hdmi * hdmi)11969a88d86SDmitry Baryshkov static int msm_hdmi_init(struct hdmi *hdmi)
120c8afe684SRob Clark {
12169a88d86SDmitry Baryshkov struct platform_device *pdev = hdmi->pdev;
12269a88d86SDmitry Baryshkov int ret;
1236ed9ed48SArchit Taneja
124c6a57a50Sjilai wang hdmi->workq = alloc_ordered_workqueue("msm_hdmi", 0);
125afe4cb96SJiasheng Jiang if (!hdmi->workq) {
126afe4cb96SJiasheng Jiang ret = -ENOMEM;
127afe4cb96SJiasheng Jiang goto fail;
128afe4cb96SJiasheng Jiang }
129c6a57a50Sjilai wang
130fcda50c8SArnd Bergmann hdmi->i2c = msm_hdmi_i2c_init(hdmi);
131c8afe684SRob Clark if (IS_ERR(hdmi->i2c)) {
132c8afe684SRob Clark ret = PTR_ERR(hdmi->i2c);
1336a41da17SMamta Shukla DRM_DEV_ERROR(&pdev->dev, "failed to get i2c: %d\n", ret);
134c8afe684SRob Clark hdmi->i2c = NULL;
135c8afe684SRob Clark goto fail;
136c8afe684SRob Clark }
137c8afe684SRob Clark
138fcda50c8SArnd Bergmann hdmi->hdcp_ctrl = msm_hdmi_hdcp_init(hdmi);
139c6a57a50Sjilai wang if (IS_ERR(hdmi->hdcp_ctrl)) {
140c6a57a50Sjilai wang dev_warn(&pdev->dev, "failed to init hdcp: disabled\n");
141c6a57a50Sjilai wang hdmi->hdcp_ctrl = NULL;
142c6a57a50Sjilai wang }
143c6a57a50Sjilai wang
14469a88d86SDmitry Baryshkov return 0;
145067fef37SRob Clark
146067fef37SRob Clark fail:
147fcda50c8SArnd Bergmann msm_hdmi_destroy(hdmi);
148067fef37SRob Clark
14969a88d86SDmitry Baryshkov return ret;
150067fef37SRob Clark }
151067fef37SRob Clark
152067fef37SRob Clark /* Second part of initialization, the drm/kms level modeset_init,
153067fef37SRob Clark * constructs/initializes mode objects, etc, is called from master
154067fef37SRob Clark * driver (not hdmi sub-device's probe/bind!)
155067fef37SRob Clark *
156067fef37SRob Clark * Any resource (regulator/clk/etc) which could be missing at boot
157fcda50c8SArnd Bergmann * should be handled in msm_hdmi_init() so that failure happens from
158067fef37SRob Clark * hdmi sub-device's probe.
159067fef37SRob Clark */
msm_hdmi_modeset_init(struct hdmi * hdmi,struct drm_device * dev,struct drm_encoder * encoder)160fcda50c8SArnd Bergmann int msm_hdmi_modeset_init(struct hdmi *hdmi,
161067fef37SRob Clark struct drm_device *dev, struct drm_encoder *encoder)
162067fef37SRob Clark {
163067fef37SRob Clark struct msm_drm_private *priv = dev->dev_private;
164067fef37SRob Clark int ret;
165067fef37SRob Clark
1664c1294daSJohan Hovold if (priv->num_bridges == ARRAY_SIZE(priv->bridges)) {
1674c1294daSJohan Hovold DRM_DEV_ERROR(dev->dev, "too many bridges\n");
1684c1294daSJohan Hovold return -ENOSPC;
1694c1294daSJohan Hovold }
1704c1294daSJohan Hovold
171067fef37SRob Clark hdmi->dev = dev;
172067fef37SRob Clark hdmi->encoder = encoder;
173067fef37SRob Clark
174067fef37SRob Clark hdmi_audio_infoframe_init(&hdmi->audio.infoframe);
175067fef37SRob Clark
176fcda50c8SArnd Bergmann hdmi->bridge = msm_hdmi_bridge_init(hdmi);
177a3376e3eSRob Clark if (IS_ERR(hdmi->bridge)) {
178a3376e3eSRob Clark ret = PTR_ERR(hdmi->bridge);
1796a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "failed to create HDMI bridge: %d\n", ret);
180a3376e3eSRob Clark hdmi->bridge = NULL;
181a3376e3eSRob Clark goto fail;
182a3376e3eSRob Clark }
183a3376e3eSRob Clark
184a7977d5cSDmitry Baryshkov if (hdmi->next_bridge) {
185a7977d5cSDmitry Baryshkov ret = drm_bridge_attach(hdmi->encoder, hdmi->next_bridge, hdmi->bridge,
186a7977d5cSDmitry Baryshkov DRM_BRIDGE_ATTACH_NO_CONNECTOR);
187a7977d5cSDmitry Baryshkov if (ret) {
188a7977d5cSDmitry Baryshkov DRM_DEV_ERROR(dev->dev, "failed to attach next HDMI bridge: %d\n", ret);
189a7977d5cSDmitry Baryshkov goto fail;
190a7977d5cSDmitry Baryshkov }
191a7977d5cSDmitry Baryshkov }
192a7977d5cSDmitry Baryshkov
193caa24223SDmitry Baryshkov hdmi->connector = drm_bridge_connector_init(hdmi->dev, encoder);
194a3376e3eSRob Clark if (IS_ERR(hdmi->connector)) {
195a3376e3eSRob Clark ret = PTR_ERR(hdmi->connector);
1966a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "failed to create HDMI connector: %d\n", ret);
197a3376e3eSRob Clark hdmi->connector = NULL;
198a3376e3eSRob Clark goto fail;
199a3376e3eSRob Clark }
200a3376e3eSRob Clark
201caa24223SDmitry Baryshkov drm_connector_attach_encoder(hdmi->connector, hdmi->encoder);
202caa24223SDmitry Baryshkov
203152d3948SJohan Hovold ret = devm_request_irq(dev->dev, hdmi->irq,
204088604d3SDaniel Thompson msm_hdmi_irq, IRQF_TRIGGER_HIGH,
205c8afe684SRob Clark "hdmi_isr", hdmi);
206c8afe684SRob Clark if (ret < 0) {
2076a41da17SMamta Shukla DRM_DEV_ERROR(dev->dev, "failed to request IRQ%u: %d\n",
208c8afe684SRob Clark hdmi->irq, ret);
209c8afe684SRob Clark goto fail;
210c8afe684SRob Clark }
211c8afe684SRob Clark
212caa24223SDmitry Baryshkov ret = msm_hdmi_hpd_enable(hdmi->bridge);
213ee445635STodor Tomov if (ret < 0) {
214ee445635STodor Tomov DRM_DEV_ERROR(&hdmi->pdev->dev, "failed to enable HPD: %d\n", ret);
215ee445635STodor Tomov goto fail;
216ee445635STodor Tomov }
217ee445635STodor Tomov
218a3376e3eSRob Clark priv->bridges[priv->num_bridges++] = hdmi->bridge;
219a3376e3eSRob Clark
220067fef37SRob Clark return 0;
221c8afe684SRob Clark
222c8afe684SRob Clark fail:
2233d3f8b1fSAjay Kumar /* bridge is normally destroyed by drm: */
224067fef37SRob Clark if (hdmi->bridge) {
225fcda50c8SArnd Bergmann msm_hdmi_bridge_destroy(hdmi->bridge);
226067fef37SRob Clark hdmi->bridge = NULL;
227067fef37SRob Clark }
228067fef37SRob Clark if (hdmi->connector) {
229a3376e3eSRob Clark hdmi->connector->funcs->destroy(hdmi->connector);
230067fef37SRob Clark hdmi->connector = NULL;
231a3376e3eSRob Clark }
232c8afe684SRob Clark
233067fef37SRob Clark return ret;
234c8afe684SRob Clark }
235c8afe684SRob Clark
236c8afe684SRob Clark /*
237c8afe684SRob Clark * The hdmi device:
238c8afe684SRob Clark */
239c8afe684SRob Clark
2405eba5d87SStephane Viau #define HDMI_CFG(item, entry) \
2415eba5d87SStephane Viau .item ## _names = item ##_names_ ## entry, \
2425eba5d87SStephane Viau .item ## _cnt = ARRAY_SIZE(item ## _names_ ## entry)
2435eba5d87SStephane Viau
2447fbf0253SDmitry Baryshkov static const char *hpd_reg_names_8960[] = {"core-vdda"};
245aede1e9eSRob Clark static const char *hpd_clk_names_8960[] = {"core", "master_iface", "slave_iface"};
2465eba5d87SStephane Viau
24769a88d86SDmitry Baryshkov static const struct hdmi_platform_config hdmi_tx_8960_config = {
2485eba5d87SStephane Viau HDMI_CFG(hpd_reg, 8960),
2495eba5d87SStephane Viau HDMI_CFG(hpd_clk, 8960),
2505eba5d87SStephane Viau };
2515eba5d87SStephane Viau
2525eba5d87SStephane Viau static const char *pwr_reg_names_8x74[] = {"core-vdda", "core-vcc"};
253aede1e9eSRob Clark static const char *pwr_clk_names_8x74[] = {"extp", "alt_iface"};
254aede1e9eSRob Clark static const char *hpd_clk_names_8x74[] = {"iface", "core", "mdp_core"};
2555eba5d87SStephane Viau static unsigned long hpd_clk_freq_8x74[] = {0, 19200000, 0};
2565eba5d87SStephane Viau
25769a88d86SDmitry Baryshkov static const struct hdmi_platform_config hdmi_tx_8974_config = {
2585eba5d87SStephane Viau HDMI_CFG(pwr_reg, 8x74),
2595eba5d87SStephane Viau HDMI_CFG(pwr_clk, 8x74),
2605eba5d87SStephane Viau HDMI_CFG(hpd_clk, 8x74),
2615eba5d87SStephane Viau .hpd_freq = hpd_clk_freq_8x74,
2625eba5d87SStephane Viau };
2635eba5d87SStephane Viau
264f1427016SSrinivas Kandagatla /*
265f1427016SSrinivas Kandagatla * HDMI audio codec callbacks
266f1427016SSrinivas Kandagatla */
msm_hdmi_audio_hw_params(struct device * dev,void * data,struct hdmi_codec_daifmt * daifmt,struct hdmi_codec_params * params)267f1427016SSrinivas Kandagatla static int msm_hdmi_audio_hw_params(struct device *dev, void *data,
268f1427016SSrinivas Kandagatla struct hdmi_codec_daifmt *daifmt,
269f1427016SSrinivas Kandagatla struct hdmi_codec_params *params)
270f1427016SSrinivas Kandagatla {
271f1427016SSrinivas Kandagatla struct hdmi *hdmi = dev_get_drvdata(dev);
272f1427016SSrinivas Kandagatla unsigned int chan;
273f1427016SSrinivas Kandagatla unsigned int channel_allocation = 0;
274f1427016SSrinivas Kandagatla unsigned int rate;
275f1427016SSrinivas Kandagatla unsigned int level_shift = 0; /* 0dB */
276f1427016SSrinivas Kandagatla bool down_mix = false;
277f1427016SSrinivas Kandagatla
2786a41da17SMamta Shukla DRM_DEV_DEBUG(dev, "%u Hz, %d bit, %d channels\n", params->sample_rate,
279f1427016SSrinivas Kandagatla params->sample_width, params->cea.channels);
280f1427016SSrinivas Kandagatla
281f1427016SSrinivas Kandagatla switch (params->cea.channels) {
282f1427016SSrinivas Kandagatla case 2:
283f1427016SSrinivas Kandagatla /* FR and FL speakers */
284f1427016SSrinivas Kandagatla channel_allocation = 0;
285f1427016SSrinivas Kandagatla chan = MSM_HDMI_AUDIO_CHANNEL_2;
286f1427016SSrinivas Kandagatla break;
287f1427016SSrinivas Kandagatla case 4:
288f1427016SSrinivas Kandagatla /* FC, LFE, FR and FL speakers */
289f1427016SSrinivas Kandagatla channel_allocation = 0x3;
290f1427016SSrinivas Kandagatla chan = MSM_HDMI_AUDIO_CHANNEL_4;
291f1427016SSrinivas Kandagatla break;
292f1427016SSrinivas Kandagatla case 6:
293f1427016SSrinivas Kandagatla /* RR, RL, FC, LFE, FR and FL speakers */
294f1427016SSrinivas Kandagatla channel_allocation = 0x0B;
295f1427016SSrinivas Kandagatla chan = MSM_HDMI_AUDIO_CHANNEL_6;
296f1427016SSrinivas Kandagatla break;
297f1427016SSrinivas Kandagatla case 8:
298f1427016SSrinivas Kandagatla /* FRC, FLC, RR, RL, FC, LFE, FR and FL speakers */
299f1427016SSrinivas Kandagatla channel_allocation = 0x1F;
300f1427016SSrinivas Kandagatla chan = MSM_HDMI_AUDIO_CHANNEL_8;
301f1427016SSrinivas Kandagatla break;
302f1427016SSrinivas Kandagatla default:
303f1427016SSrinivas Kandagatla return -EINVAL;
304f1427016SSrinivas Kandagatla }
305f1427016SSrinivas Kandagatla
306f1427016SSrinivas Kandagatla switch (params->sample_rate) {
307f1427016SSrinivas Kandagatla case 32000:
308f1427016SSrinivas Kandagatla rate = HDMI_SAMPLE_RATE_32KHZ;
309f1427016SSrinivas Kandagatla break;
310f1427016SSrinivas Kandagatla case 44100:
311f1427016SSrinivas Kandagatla rate = HDMI_SAMPLE_RATE_44_1KHZ;
312f1427016SSrinivas Kandagatla break;
313f1427016SSrinivas Kandagatla case 48000:
314f1427016SSrinivas Kandagatla rate = HDMI_SAMPLE_RATE_48KHZ;
315f1427016SSrinivas Kandagatla break;
316f1427016SSrinivas Kandagatla case 88200:
317f1427016SSrinivas Kandagatla rate = HDMI_SAMPLE_RATE_88_2KHZ;
318f1427016SSrinivas Kandagatla break;
319f1427016SSrinivas Kandagatla case 96000:
320f1427016SSrinivas Kandagatla rate = HDMI_SAMPLE_RATE_96KHZ;
321f1427016SSrinivas Kandagatla break;
322f1427016SSrinivas Kandagatla case 176400:
323f1427016SSrinivas Kandagatla rate = HDMI_SAMPLE_RATE_176_4KHZ;
324f1427016SSrinivas Kandagatla break;
325f1427016SSrinivas Kandagatla case 192000:
326f1427016SSrinivas Kandagatla rate = HDMI_SAMPLE_RATE_192KHZ;
327f1427016SSrinivas Kandagatla break;
328f1427016SSrinivas Kandagatla default:
3296a41da17SMamta Shukla DRM_DEV_ERROR(dev, "rate[%d] not supported!\n",
330f1427016SSrinivas Kandagatla params->sample_rate);
331f1427016SSrinivas Kandagatla return -EINVAL;
332f1427016SSrinivas Kandagatla }
333f1427016SSrinivas Kandagatla
334f1427016SSrinivas Kandagatla msm_hdmi_audio_set_sample_rate(hdmi, rate);
335f1427016SSrinivas Kandagatla msm_hdmi_audio_info_setup(hdmi, 1, chan, channel_allocation,
336f1427016SSrinivas Kandagatla level_shift, down_mix);
337f1427016SSrinivas Kandagatla
338f1427016SSrinivas Kandagatla return 0;
339f1427016SSrinivas Kandagatla }
340f1427016SSrinivas Kandagatla
msm_hdmi_audio_shutdown(struct device * dev,void * data)341f1427016SSrinivas Kandagatla static void msm_hdmi_audio_shutdown(struct device *dev, void *data)
342f1427016SSrinivas Kandagatla {
343f1427016SSrinivas Kandagatla struct hdmi *hdmi = dev_get_drvdata(dev);
344f1427016SSrinivas Kandagatla
345f1427016SSrinivas Kandagatla msm_hdmi_audio_info_setup(hdmi, 0, 0, 0, 0, 0);
346f1427016SSrinivas Kandagatla }
347f1427016SSrinivas Kandagatla
348f1427016SSrinivas Kandagatla static const struct hdmi_codec_ops msm_hdmi_audio_codec_ops = {
349f1427016SSrinivas Kandagatla .hw_params = msm_hdmi_audio_hw_params,
350f1427016SSrinivas Kandagatla .audio_shutdown = msm_hdmi_audio_shutdown,
351f1427016SSrinivas Kandagatla };
352f1427016SSrinivas Kandagatla
353f1427016SSrinivas Kandagatla static struct hdmi_codec_pdata codec_data = {
354f1427016SSrinivas Kandagatla .ops = &msm_hdmi_audio_codec_ops,
355f1427016SSrinivas Kandagatla .max_i2s_channels = 8,
356f1427016SSrinivas Kandagatla .i2s = 1,
357f1427016SSrinivas Kandagatla };
358f1427016SSrinivas Kandagatla
msm_hdmi_register_audio_driver(struct hdmi * hdmi,struct device * dev)359f1427016SSrinivas Kandagatla static int msm_hdmi_register_audio_driver(struct hdmi *hdmi, struct device *dev)
360f1427016SSrinivas Kandagatla {
361f1427016SSrinivas Kandagatla hdmi->audio_pdev = platform_device_register_data(dev,
362f1427016SSrinivas Kandagatla HDMI_CODEC_DRV_NAME,
363f1427016SSrinivas Kandagatla PLATFORM_DEVID_AUTO,
364f1427016SSrinivas Kandagatla &codec_data,
365f1427016SSrinivas Kandagatla sizeof(codec_data));
36606f32172SWei Yongjun return PTR_ERR_OR_ZERO(hdmi->audio_pdev);
367f1427016SSrinivas Kandagatla }
368f1427016SSrinivas Kandagatla
msm_hdmi_bind(struct device * dev,struct device * master,void * data)369fcda50c8SArnd Bergmann static int msm_hdmi_bind(struct device *dev, struct device *master, void *data)
370fc886107SMark Charlebois {
371ec919e6eSAngeloGioacchino Del Regno struct msm_drm_private *priv = dev_get_drvdata(master);
37269a88d86SDmitry Baryshkov struct hdmi *hdmi = dev_get_drvdata(dev);
37368e674b1SDmitry Baryshkov int err;
374dada25bdSRob Clark
37569a88d86SDmitry Baryshkov err = msm_hdmi_init(hdmi);
37669a88d86SDmitry Baryshkov if (err)
37769a88d86SDmitry Baryshkov return err;
378d1a717bdSRob Clark priv->hdmi = hdmi;
3795eba5d87SStephane Viau
380f1427016SSrinivas Kandagatla err = msm_hdmi_register_audio_driver(hdmi, dev);
381f1427016SSrinivas Kandagatla if (err) {
382f1427016SSrinivas Kandagatla DRM_ERROR("Failed to attach an audio codec %d\n", err);
383f1427016SSrinivas Kandagatla hdmi->audio_pdev = NULL;
384f1427016SSrinivas Kandagatla }
385f1427016SSrinivas Kandagatla
386c8afe684SRob Clark return 0;
387c8afe684SRob Clark }
388c8afe684SRob Clark
msm_hdmi_unbind(struct device * dev,struct device * master,void * data)389fcda50c8SArnd Bergmann static void msm_hdmi_unbind(struct device *dev, struct device *master,
390060530f1SRob Clark void *data)
391060530f1SRob Clark {
392ec919e6eSAngeloGioacchino Del Regno struct msm_drm_private *priv = dev_get_drvdata(master);
393ec919e6eSAngeloGioacchino Del Regno
394d1a717bdSRob Clark if (priv->hdmi) {
395f1427016SSrinivas Kandagatla if (priv->hdmi->audio_pdev)
396f1427016SSrinivas Kandagatla platform_device_unregister(priv->hdmi->audio_pdev);
397f1427016SSrinivas Kandagatla
398fcda50c8SArnd Bergmann msm_hdmi_destroy(priv->hdmi);
399d1a717bdSRob Clark priv->hdmi = NULL;
400d1a717bdSRob Clark }
401060530f1SRob Clark }
402060530f1SRob Clark
403fcda50c8SArnd Bergmann static const struct component_ops msm_hdmi_ops = {
404fcda50c8SArnd Bergmann .bind = msm_hdmi_bind,
405fcda50c8SArnd Bergmann .unbind = msm_hdmi_unbind,
406060530f1SRob Clark };
407060530f1SRob Clark
msm_hdmi_dev_probe(struct platform_device * pdev)408fcda50c8SArnd Bergmann static int msm_hdmi_dev_probe(struct platform_device *pdev)
409060530f1SRob Clark {
41069a88d86SDmitry Baryshkov const struct hdmi_platform_config *config;
41169a88d86SDmitry Baryshkov struct device *dev = &pdev->dev;
41269a88d86SDmitry Baryshkov struct hdmi *hdmi;
41369a88d86SDmitry Baryshkov struct resource *res;
41469a88d86SDmitry Baryshkov int i, ret;
41569a88d86SDmitry Baryshkov
41669a88d86SDmitry Baryshkov config = of_device_get_match_data(dev);
41769a88d86SDmitry Baryshkov if (!config)
41869a88d86SDmitry Baryshkov return -EINVAL;
41969a88d86SDmitry Baryshkov
42069a88d86SDmitry Baryshkov hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
42169a88d86SDmitry Baryshkov if (!hdmi)
42269a88d86SDmitry Baryshkov return -ENOMEM;
42369a88d86SDmitry Baryshkov
42469a88d86SDmitry Baryshkov hdmi->pdev = pdev;
42569a88d86SDmitry Baryshkov hdmi->config = config;
42669a88d86SDmitry Baryshkov spin_lock_init(&hdmi->reg_lock);
42769a88d86SDmitry Baryshkov
42869a88d86SDmitry Baryshkov ret = drm_of_find_panel_or_bridge(pdev->dev.of_node, 1, 0, NULL, &hdmi->next_bridge);
42969a88d86SDmitry Baryshkov if (ret && ret != -ENODEV)
43069a88d86SDmitry Baryshkov return ret;
43169a88d86SDmitry Baryshkov
43269a88d86SDmitry Baryshkov hdmi->mmio = msm_ioremap(pdev, "core_physical");
43369a88d86SDmitry Baryshkov if (IS_ERR(hdmi->mmio))
43469a88d86SDmitry Baryshkov return PTR_ERR(hdmi->mmio);
43569a88d86SDmitry Baryshkov
43669a88d86SDmitry Baryshkov /* HDCP needs physical address of hdmi register */
43769a88d86SDmitry Baryshkov res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
43869a88d86SDmitry Baryshkov "core_physical");
43969a88d86SDmitry Baryshkov if (!res)
44069a88d86SDmitry Baryshkov return -EINVAL;
44169a88d86SDmitry Baryshkov hdmi->mmio_phy_addr = res->start;
44269a88d86SDmitry Baryshkov
44369a88d86SDmitry Baryshkov hdmi->qfprom_mmio = msm_ioremap(pdev, "qfprom_physical");
44469a88d86SDmitry Baryshkov if (IS_ERR(hdmi->qfprom_mmio)) {
44569a88d86SDmitry Baryshkov DRM_DEV_INFO(&pdev->dev, "can't find qfprom resource\n");
44669a88d86SDmitry Baryshkov hdmi->qfprom_mmio = NULL;
44769a88d86SDmitry Baryshkov }
44869a88d86SDmitry Baryshkov
44969a88d86SDmitry Baryshkov hdmi->irq = platform_get_irq(pdev, 0);
45069a88d86SDmitry Baryshkov if (hdmi->irq < 0)
45169a88d86SDmitry Baryshkov return hdmi->irq;
45269a88d86SDmitry Baryshkov
45369a88d86SDmitry Baryshkov hdmi->hpd_regs = devm_kcalloc(&pdev->dev,
45469a88d86SDmitry Baryshkov config->hpd_reg_cnt,
45569a88d86SDmitry Baryshkov sizeof(hdmi->hpd_regs[0]),
45669a88d86SDmitry Baryshkov GFP_KERNEL);
45769a88d86SDmitry Baryshkov if (!hdmi->hpd_regs)
45869a88d86SDmitry Baryshkov return -ENOMEM;
45969a88d86SDmitry Baryshkov
46069a88d86SDmitry Baryshkov for (i = 0; i < config->hpd_reg_cnt; i++)
46169a88d86SDmitry Baryshkov hdmi->hpd_regs[i].supply = config->hpd_reg_names[i];
46269a88d86SDmitry Baryshkov
46369a88d86SDmitry Baryshkov ret = devm_regulator_bulk_get(&pdev->dev, config->hpd_reg_cnt, hdmi->hpd_regs);
46469a88d86SDmitry Baryshkov if (ret)
46569a88d86SDmitry Baryshkov return dev_err_probe(dev, ret, "failed to get hpd regulators\n");
46669a88d86SDmitry Baryshkov
46769a88d86SDmitry Baryshkov hdmi->pwr_regs = devm_kcalloc(&pdev->dev,
46869a88d86SDmitry Baryshkov config->pwr_reg_cnt,
46969a88d86SDmitry Baryshkov sizeof(hdmi->pwr_regs[0]),
47069a88d86SDmitry Baryshkov GFP_KERNEL);
47169a88d86SDmitry Baryshkov if (!hdmi->pwr_regs)
47269a88d86SDmitry Baryshkov return -ENOMEM;
47369a88d86SDmitry Baryshkov
47469a88d86SDmitry Baryshkov for (i = 0; i < config->pwr_reg_cnt; i++)
47569a88d86SDmitry Baryshkov hdmi->pwr_regs[i].supply = config->pwr_reg_names[i];
47669a88d86SDmitry Baryshkov
47769a88d86SDmitry Baryshkov ret = devm_regulator_bulk_get(&pdev->dev, config->pwr_reg_cnt, hdmi->pwr_regs);
47869a88d86SDmitry Baryshkov if (ret)
47969a88d86SDmitry Baryshkov return dev_err_probe(dev, ret, "failed to get pwr regulators\n");
48069a88d86SDmitry Baryshkov
48169a88d86SDmitry Baryshkov hdmi->hpd_clks = devm_kcalloc(&pdev->dev,
48269a88d86SDmitry Baryshkov config->hpd_clk_cnt,
48369a88d86SDmitry Baryshkov sizeof(hdmi->hpd_clks[0]),
48469a88d86SDmitry Baryshkov GFP_KERNEL);
48569a88d86SDmitry Baryshkov if (!hdmi->hpd_clks)
48669a88d86SDmitry Baryshkov return -ENOMEM;
48769a88d86SDmitry Baryshkov
48869a88d86SDmitry Baryshkov for (i = 0; i < config->hpd_clk_cnt; i++) {
48969a88d86SDmitry Baryshkov struct clk *clk;
49069a88d86SDmitry Baryshkov
49169a88d86SDmitry Baryshkov clk = msm_clk_get(pdev, config->hpd_clk_names[i]);
49269a88d86SDmitry Baryshkov if (IS_ERR(clk))
49369a88d86SDmitry Baryshkov return dev_err_probe(dev, PTR_ERR(clk),
49469a88d86SDmitry Baryshkov "failed to get hpd clk: %s\n",
49569a88d86SDmitry Baryshkov config->hpd_clk_names[i]);
49669a88d86SDmitry Baryshkov
49769a88d86SDmitry Baryshkov hdmi->hpd_clks[i] = clk;
49869a88d86SDmitry Baryshkov }
49969a88d86SDmitry Baryshkov
50069a88d86SDmitry Baryshkov hdmi->pwr_clks = devm_kcalloc(&pdev->dev,
50169a88d86SDmitry Baryshkov config->pwr_clk_cnt,
50269a88d86SDmitry Baryshkov sizeof(hdmi->pwr_clks[0]),
50369a88d86SDmitry Baryshkov GFP_KERNEL);
50469a88d86SDmitry Baryshkov if (!hdmi->pwr_clks)
50569a88d86SDmitry Baryshkov return -ENOMEM;
50669a88d86SDmitry Baryshkov
50769a88d86SDmitry Baryshkov for (i = 0; i < config->pwr_clk_cnt; i++) {
50869a88d86SDmitry Baryshkov struct clk *clk;
50969a88d86SDmitry Baryshkov
51069a88d86SDmitry Baryshkov clk = msm_clk_get(pdev, config->pwr_clk_names[i]);
51169a88d86SDmitry Baryshkov if (IS_ERR(clk))
51269a88d86SDmitry Baryshkov return dev_err_probe(dev, PTR_ERR(clk),
51369a88d86SDmitry Baryshkov "failed to get pwr clk: %s\n",
51469a88d86SDmitry Baryshkov config->pwr_clk_names[i]);
51569a88d86SDmitry Baryshkov
51669a88d86SDmitry Baryshkov hdmi->pwr_clks[i] = clk;
51769a88d86SDmitry Baryshkov }
51869a88d86SDmitry Baryshkov
51969a88d86SDmitry Baryshkov hdmi->hpd_gpiod = devm_gpiod_get_optional(&pdev->dev, "hpd", GPIOD_IN);
52069a88d86SDmitry Baryshkov /* This will catch e.g. -EPROBE_DEFER */
52169a88d86SDmitry Baryshkov if (IS_ERR(hdmi->hpd_gpiod))
52269a88d86SDmitry Baryshkov return dev_err_probe(dev, PTR_ERR(hdmi->hpd_gpiod),
52369a88d86SDmitry Baryshkov "failed to get hpd gpio\n");
52469a88d86SDmitry Baryshkov
52569a88d86SDmitry Baryshkov if (!hdmi->hpd_gpiod)
52669a88d86SDmitry Baryshkov DBG("failed to get HPD gpio");
52769a88d86SDmitry Baryshkov
52869a88d86SDmitry Baryshkov if (hdmi->hpd_gpiod)
52969a88d86SDmitry Baryshkov gpiod_set_consumer_name(hdmi->hpd_gpiod, "HDMI_HPD");
53069a88d86SDmitry Baryshkov
53143736546SDmitry Baryshkov ret = msm_hdmi_get_phy(hdmi);
53243736546SDmitry Baryshkov if (ret) {
53343736546SDmitry Baryshkov DRM_DEV_ERROR(&pdev->dev, "failed to get phy\n");
53443736546SDmitry Baryshkov return ret;
53543736546SDmitry Baryshkov }
53643736546SDmitry Baryshkov
53769a88d86SDmitry Baryshkov ret = devm_pm_runtime_enable(&pdev->dev);
53869a88d86SDmitry Baryshkov if (ret)
53941648432SChristophe JAILLET goto err_put_phy;
54069a88d86SDmitry Baryshkov
54169a88d86SDmitry Baryshkov platform_set_drvdata(pdev, hdmi);
54269a88d86SDmitry Baryshkov
54341648432SChristophe JAILLET ret = component_add(&pdev->dev, &msm_hdmi_ops);
54441648432SChristophe JAILLET if (ret)
54541648432SChristophe JAILLET goto err_put_phy;
54641648432SChristophe JAILLET
54741648432SChristophe JAILLET return 0;
54841648432SChristophe JAILLET
54941648432SChristophe JAILLET err_put_phy:
55041648432SChristophe JAILLET msm_hdmi_put_phy(hdmi);
55141648432SChristophe JAILLET return ret;
552060530f1SRob Clark }
553060530f1SRob Clark
msm_hdmi_dev_remove(struct platform_device * pdev)554fcda50c8SArnd Bergmann static int msm_hdmi_dev_remove(struct platform_device *pdev)
555c8afe684SRob Clark {
55643736546SDmitry Baryshkov struct hdmi *hdmi = dev_get_drvdata(&pdev->dev);
55743736546SDmitry Baryshkov
558fcda50c8SArnd Bergmann component_del(&pdev->dev, &msm_hdmi_ops);
55943736546SDmitry Baryshkov
56043736546SDmitry Baryshkov msm_hdmi_put_phy(hdmi);
56143736546SDmitry Baryshkov
562c8afe684SRob Clark return 0;
563c8afe684SRob Clark }
564c8afe684SRob Clark
565fcda50c8SArnd Bergmann static const struct of_device_id msm_hdmi_dt_match[] = {
5669edaba87SDmitry Baryshkov { .compatible = "qcom,hdmi-tx-8996", .data = &hdmi_tx_8974_config },
5679edaba87SDmitry Baryshkov { .compatible = "qcom,hdmi-tx-8994", .data = &hdmi_tx_8974_config },
5689edaba87SDmitry Baryshkov { .compatible = "qcom,hdmi-tx-8084", .data = &hdmi_tx_8974_config },
5691fd6a441SArchit Taneja { .compatible = "qcom,hdmi-tx-8974", .data = &hdmi_tx_8974_config },
5701fd6a441SArchit Taneja { .compatible = "qcom,hdmi-tx-8960", .data = &hdmi_tx_8960_config },
571ac1c2787SDmitry Baryshkov { .compatible = "qcom,hdmi-tx-8660", .data = &hdmi_tx_8960_config },
5721fd6a441SArchit Taneja {}
5731fd6a441SArchit Taneja };
5741fd6a441SArchit Taneja
575fcda50c8SArnd Bergmann static struct platform_driver msm_hdmi_driver = {
576fcda50c8SArnd Bergmann .probe = msm_hdmi_dev_probe,
577fcda50c8SArnd Bergmann .remove = msm_hdmi_dev_remove,
578dada25bdSRob Clark .driver = {
579dada25bdSRob Clark .name = "hdmi_msm",
580fcda50c8SArnd Bergmann .of_match_table = msm_hdmi_dt_match,
581dada25bdSRob Clark },
582c8afe684SRob Clark };
583c8afe684SRob Clark
msm_hdmi_register(void)584fcda50c8SArnd Bergmann void __init msm_hdmi_register(void)
585c8afe684SRob Clark {
586fcda50c8SArnd Bergmann msm_hdmi_phy_driver_register();
587fcda50c8SArnd Bergmann platform_driver_register(&msm_hdmi_driver);
588c8afe684SRob Clark }
589c8afe684SRob Clark
msm_hdmi_unregister(void)590fcda50c8SArnd Bergmann void __exit msm_hdmi_unregister(void)
591c8afe684SRob Clark {
592fcda50c8SArnd Bergmann platform_driver_unregister(&msm_hdmi_driver);
593fcda50c8SArnd Bergmann msm_hdmi_phy_driver_unregister();
594c8afe684SRob Clark }
595