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18#include "hdmi.h"
19
20void hdmi_set_mode(struct hdmi *hdmi, bool power_on)
21{
22 uint32_t ctrl = 0;
23
24 if (power_on) {
25 ctrl |= HDMI_CTRL_ENABLE;
26 if (!hdmi->hdmi_mode) {
27 ctrl |= HDMI_CTRL_HDMI;
28 hdmi_write(hdmi, REG_HDMI_CTRL, ctrl);
29 ctrl &= ~HDMI_CTRL_HDMI;
30 } else {
31 ctrl |= HDMI_CTRL_HDMI;
32 }
33 } else {
34 ctrl = HDMI_CTRL_HDMI;
35 }
36
37 hdmi_write(hdmi, REG_HDMI_CTRL, ctrl);
38 DBG("HDMI Core: %s, HDMI_CTRL=0x%08x",
39 power_on ? "Enable" : "Disable", ctrl);
40}
41
42irqreturn_t hdmi_irq(int irq, void *dev_id)
43{
44 struct hdmi *hdmi = dev_id;
45
46
47 hdmi_connector_irq(hdmi->connector);
48
49
50 hdmi_i2c_irq(hdmi->i2c);
51
52
53
54 return IRQ_HANDLED;
55}
56
57void hdmi_destroy(struct kref *kref)
58{
59 struct hdmi *hdmi = container_of(kref, struct hdmi, refcount);
60 struct hdmi_phy *phy = hdmi->phy;
61
62 if (phy)
63 phy->funcs->destroy(phy);
64
65 if (hdmi->i2c)
66 hdmi_i2c_destroy(hdmi->i2c);
67
68 platform_set_drvdata(hdmi->pdev, NULL);
69}
70
71
72struct hdmi *hdmi_init(struct drm_device *dev, struct drm_encoder *encoder)
73{
74 struct hdmi *hdmi = NULL;
75 struct msm_drm_private *priv = dev->dev_private;
76 struct platform_device *pdev = priv->hdmi_pdev;
77 struct hdmi_platform_config *config;
78 int i, ret;
79
80 if (!pdev) {
81 dev_err(dev->dev, "no hdmi device\n");
82 ret = -ENXIO;
83 goto fail;
84 }
85
86 config = pdev->dev.platform_data;
87
88 hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL);
89 if (!hdmi) {
90 ret = -ENOMEM;
91 goto fail;
92 }
93
94 kref_init(&hdmi->refcount);
95
96 hdmi->dev = dev;
97 hdmi->pdev = pdev;
98 hdmi->config = config;
99 hdmi->encoder = encoder;
100
101 hdmi_audio_infoframe_init(&hdmi->audio.infoframe);
102
103
104 if (config->phy_init)
105 hdmi->phy = config->phy_init(hdmi);
106 else
107 hdmi->phy = ERR_PTR(-ENXIO);
108
109 if (IS_ERR(hdmi->phy)) {
110 ret = PTR_ERR(hdmi->phy);
111 dev_err(dev->dev, "failed to load phy: %d\n", ret);
112 hdmi->phy = NULL;
113 goto fail;
114 }
115
116 hdmi->mmio = msm_ioremap(pdev, config->mmio_name, "HDMI");
117 if (IS_ERR(hdmi->mmio)) {
118 ret = PTR_ERR(hdmi->mmio);
119 goto fail;
120 }
121
122 BUG_ON(config->hpd_reg_cnt > ARRAY_SIZE(hdmi->hpd_regs));
123 for (i = 0; i < config->hpd_reg_cnt; i++) {
124 struct regulator *reg;
125
126 reg = devm_regulator_get(&pdev->dev,
127 config->hpd_reg_names[i]);
128 if (IS_ERR(reg)) {
129 ret = PTR_ERR(reg);
130 dev_err(dev->dev, "failed to get hpd regulator: %s (%d)\n",
131 config->hpd_reg_names[i], ret);
132 goto fail;
133 }
134
135 hdmi->hpd_regs[i] = reg;
136 }
137
138 BUG_ON(config->pwr_reg_cnt > ARRAY_SIZE(hdmi->pwr_regs));
139 for (i = 0; i < config->pwr_reg_cnt; i++) {
140 struct regulator *reg;
141
142 reg = devm_regulator_get(&pdev->dev,
143 config->pwr_reg_names[i]);
144 if (IS_ERR(reg)) {
145 ret = PTR_ERR(reg);
146 dev_err(dev->dev, "failed to get pwr regulator: %s (%d)\n",
147 config->pwr_reg_names[i], ret);
148 goto fail;
149 }
150
151 hdmi->pwr_regs[i] = reg;
152 }
153
154 BUG_ON(config->hpd_clk_cnt > ARRAY_SIZE(hdmi->hpd_clks));
155 for (i = 0; i < config->hpd_clk_cnt; i++) {
156 struct clk *clk;
157
158 clk = devm_clk_get(&pdev->dev, config->hpd_clk_names[i]);
159 if (IS_ERR(clk)) {
160 ret = PTR_ERR(clk);
161 dev_err(dev->dev, "failed to get hpd clk: %s (%d)\n",
162 config->hpd_clk_names[i], ret);
163 goto fail;
164 }
165
166 hdmi->hpd_clks[i] = clk;
167 }
168
169 BUG_ON(config->pwr_clk_cnt > ARRAY_SIZE(hdmi->pwr_clks));
170 for (i = 0; i < config->pwr_clk_cnt; i++) {
171 struct clk *clk;
172
173 clk = devm_clk_get(&pdev->dev, config->pwr_clk_names[i]);
174 if (IS_ERR(clk)) {
175 ret = PTR_ERR(clk);
176 dev_err(dev->dev, "failed to get pwr clk: %s (%d)\n",
177 config->pwr_clk_names[i], ret);
178 goto fail;
179 }
180
181 hdmi->pwr_clks[i] = clk;
182 }
183
184 hdmi->i2c = hdmi_i2c_init(hdmi);
185 if (IS_ERR(hdmi->i2c)) {
186 ret = PTR_ERR(hdmi->i2c);
187 dev_err(dev->dev, "failed to get i2c: %d\n", ret);
188 hdmi->i2c = NULL;
189 goto fail;
190 }
191
192 hdmi->bridge = hdmi_bridge_init(hdmi);
193 if (IS_ERR(hdmi->bridge)) {
194 ret = PTR_ERR(hdmi->bridge);
195 dev_err(dev->dev, "failed to create HDMI bridge: %d\n", ret);
196 hdmi->bridge = NULL;
197 goto fail;
198 }
199
200 hdmi->connector = hdmi_connector_init(hdmi);
201 if (IS_ERR(hdmi->connector)) {
202 ret = PTR_ERR(hdmi->connector);
203 dev_err(dev->dev, "failed to create HDMI connector: %d\n", ret);
204 hdmi->connector = NULL;
205 goto fail;
206 }
207
208 if (!config->shared_irq) {
209 hdmi->irq = platform_get_irq(pdev, 0);
210 if (hdmi->irq < 0) {
211 ret = hdmi->irq;
212 dev_err(dev->dev, "failed to get irq: %d\n", ret);
213 goto fail;
214 }
215
216 ret = devm_request_threaded_irq(&pdev->dev, hdmi->irq,
217 NULL, hdmi_irq, IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
218 "hdmi_isr", hdmi);
219 if (ret < 0) {
220 dev_err(dev->dev, "failed to request IRQ%u: %d\n",
221 hdmi->irq, ret);
222 goto fail;
223 }
224 }
225
226 encoder->bridge = hdmi->bridge;
227
228 priv->bridges[priv->num_bridges++] = hdmi->bridge;
229 priv->connectors[priv->num_connectors++] = hdmi->connector;
230
231 platform_set_drvdata(pdev, hdmi);
232
233 return hdmi;
234
235fail:
236 if (hdmi) {
237
238 if (hdmi->bridge)
239 hdmi->bridge->funcs->destroy(hdmi->bridge);
240 if (hdmi->connector)
241 hdmi->connector->funcs->destroy(hdmi->connector);
242 hdmi_destroy(&hdmi->refcount);
243 }
244
245 return ERR_PTR(ret);
246}
247
248
249
250
251
252#include <linux/of_gpio.h>
253
254static void set_hdmi_pdev(struct drm_device *dev,
255 struct platform_device *pdev)
256{
257 struct msm_drm_private *priv = dev->dev_private;
258 priv->hdmi_pdev = pdev;
259}
260
261#ifdef CONFIG_OF
262static int get_gpio(struct device *dev, struct device_node *of_node, const char *name)
263{
264 int gpio = of_get_named_gpio(of_node, name, 0);
265 if (gpio < 0) {
266 char name2[32];
267 snprintf(name2, sizeof(name2), "%s-gpio", name);
268 gpio = of_get_named_gpio(of_node, name2, 0);
269 if (gpio < 0) {
270 dev_err(dev, "failed to get gpio: %s (%d)\n",
271 name, gpio);
272 gpio = -1;
273 }
274 }
275 return gpio;
276}
277#endif
278
279static int hdmi_bind(struct device *dev, struct device *master, void *data)
280{
281 static struct hdmi_platform_config config = {};
282#ifdef CONFIG_OF
283 struct device_node *of_node = dev->of_node;
284
285 if (of_device_is_compatible(of_node, "qcom,hdmi-tx-8074")) {
286 static const char *hpd_reg_names[] = {"hpd-gdsc", "hpd-5v"};
287 static const char *pwr_reg_names[] = {"core-vdda", "core-vcc"};
288 static const char *hpd_clk_names[] = {"iface_clk", "core_clk", "mdp_core_clk"};
289 static unsigned long hpd_clk_freq[] = {0, 19200000, 0};
290 static const char *pwr_clk_names[] = {"extp_clk", "alt_iface_clk"};
291 config.phy_init = hdmi_phy_8x74_init;
292 config.hpd_reg_names = hpd_reg_names;
293 config.hpd_reg_cnt = ARRAY_SIZE(hpd_reg_names);
294 config.pwr_reg_names = pwr_reg_names;
295 config.pwr_reg_cnt = ARRAY_SIZE(pwr_reg_names);
296 config.hpd_clk_names = hpd_clk_names;
297 config.hpd_freq = hpd_clk_freq;
298 config.hpd_clk_cnt = ARRAY_SIZE(hpd_clk_names);
299 config.pwr_clk_names = pwr_clk_names;
300 config.pwr_clk_cnt = ARRAY_SIZE(pwr_clk_names);
301 config.shared_irq = true;
302 } else if (of_device_is_compatible(of_node, "qcom,hdmi-tx-8960")) {
303 static const char *hpd_clk_names[] = {"core_clk", "master_iface_clk", "slave_iface_clk"};
304 static const char *hpd_reg_names[] = {"core-vdda", "hdmi-mux"};
305 config.phy_init = hdmi_phy_8960_init;
306 config.hpd_reg_names = hpd_reg_names;
307 config.hpd_reg_cnt = ARRAY_SIZE(hpd_reg_names);
308 config.hpd_clk_names = hpd_clk_names;
309 config.hpd_clk_cnt = ARRAY_SIZE(hpd_clk_names);
310 } else if (of_device_is_compatible(of_node, "qcom,hdmi-tx-8660")) {
311 config.phy_init = hdmi_phy_8x60_init;
312 } else {
313 dev_err(dev, "unknown phy: %s\n", of_node->name);
314 }
315
316 config.mmio_name = "core_physical";
317 config.ddc_clk_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-ddc-clk");
318 config.ddc_data_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-ddc-data");
319 config.hpd_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-hpd");
320 config.mux_en_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-mux-en");
321 config.mux_sel_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-mux-sel");
322 config.mux_lpm_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-mux-lpm");
323
324#else
325 static const char *hpd_clk_names[] = {
326 "core_clk", "master_iface_clk", "slave_iface_clk",
327 };
328 if (cpu_is_apq8064()) {
329 static const char *hpd_reg_names[] = {"8921_hdmi_mvs"};
330 config.phy_init = hdmi_phy_8960_init;
331 config.mmio_name = "hdmi_msm_hdmi_addr";
332 config.hpd_reg_names = hpd_reg_names;
333 config.hpd_reg_cnt = ARRAY_SIZE(hpd_reg_names);
334 config.hpd_clk_names = hpd_clk_names;
335 config.hpd_clk_cnt = ARRAY_SIZE(hpd_clk_names);
336 config.ddc_clk_gpio = 70;
337 config.ddc_data_gpio = 71;
338 config.hpd_gpio = 72;
339 config.mux_en_gpio = -1;
340 config.mux_sel_gpio = -1;
341 } else if (cpu_is_msm8960() || cpu_is_msm8960ab()) {
342 static const char *hpd_reg_names[] = {"8921_hdmi_mvs"};
343 config.phy_init = hdmi_phy_8960_init;
344 config.mmio_name = "hdmi_msm_hdmi_addr";
345 config.hpd_reg_names = hpd_reg_names;
346 config.hpd_reg_cnt = ARRAY_SIZE(hpd_reg_names);
347 config.hpd_clk_names = hpd_clk_names;
348 config.hpd_clk_cnt = ARRAY_SIZE(hpd_clk_names);
349 config.ddc_clk_gpio = 100;
350 config.ddc_data_gpio = 101;
351 config.hpd_gpio = 102;
352 config.mux_en_gpio = -1;
353 config.mux_sel_gpio = -1;
354 } else if (cpu_is_msm8x60()) {
355 static const char *hpd_reg_names[] = {
356 "8901_hdmi_mvs", "8901_mpp0"
357 };
358 config.phy_init = hdmi_phy_8x60_init;
359 config.mmio_name = "hdmi_msm_hdmi_addr";
360 config.hpd_reg_names = hpd_reg_names;
361 config.hpd_reg_cnt = ARRAY_SIZE(hpd_reg_names);
362 config.hpd_clk_names = hpd_clk_names;
363 config.hpd_clk_cnt = ARRAY_SIZE(hpd_clk_names);
364 config.ddc_clk_gpio = 170;
365 config.ddc_data_gpio = 171;
366 config.hpd_gpio = 172;
367 config.mux_en_gpio = -1;
368 config.mux_sel_gpio = -1;
369 }
370#endif
371 dev->platform_data = &config;
372 set_hdmi_pdev(dev_get_drvdata(master), to_platform_device(dev));
373 return 0;
374}
375
376static void hdmi_unbind(struct device *dev, struct device *master,
377 void *data)
378{
379 set_hdmi_pdev(dev_get_drvdata(master), NULL);
380}
381
382static const struct component_ops hdmi_ops = {
383 .bind = hdmi_bind,
384 .unbind = hdmi_unbind,
385};
386
387static int hdmi_dev_probe(struct platform_device *pdev)
388{
389 return component_add(&pdev->dev, &hdmi_ops);
390}
391
392static int hdmi_dev_remove(struct platform_device *pdev)
393{
394 component_del(&pdev->dev, &hdmi_ops);
395 return 0;
396}
397
398static const struct of_device_id dt_match[] = {
399 { .compatible = "qcom,hdmi-tx-8074" },
400 { .compatible = "qcom,hdmi-tx-8960" },
401 { .compatible = "qcom,hdmi-tx-8660" },
402 {}
403};
404
405static struct platform_driver hdmi_driver = {
406 .probe = hdmi_dev_probe,
407 .remove = hdmi_dev_remove,
408 .driver = {
409 .name = "hdmi_msm",
410 .of_match_table = dt_match,
411 },
412};
413
414void __init hdmi_register(void)
415{
416 platform_driver_register(&hdmi_driver);
417}
418
419void __exit hdmi_unregister(void)
420{
421 platform_driver_unregister(&hdmi_driver);
422}
423
