i915/display/intel_lpe_audio.c

80 #define HAS_LPE_AUDIO(dev_priv) ((dev_priv)->display.audio.lpe.platdev != NULL)
83 lpe_audio_platdev_create(struct drm_i915_private *dev_priv)
85 	struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
101 	rsc[0].start    = rsc[0].end = dev_priv->display.audio.lpe.irq;
112 	pinfo.parent = dev_priv->drm.dev;
121 	pdata->num_pipes = INTEL_NUM_PIPES(dev_priv);
122 	pdata->num_ports = IS_CHERRYVIEW(dev_priv) ? 3 : 2; /* B,C,D or B,C */
133 		drm_err(&dev_priv->drm,
143 static void lpe_audio_platdev_destroy(struct drm_i915_private *dev_priv)
153 	platform_device_unregister(dev_priv->display.audio.lpe.platdev);
170 static int lpe_audio_irq_init(struct drm_i915_private *dev_priv)
172 	int irq = dev_priv->display.audio.lpe.irq;
174 	drm_WARN_ON(&dev_priv->drm, !intel_irqs_enabled(dev_priv));
180 	return irq_set_chip_data(irq, dev_priv);
183 static bool lpe_audio_detect(struct drm_i915_private *dev_priv)
187 	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
197 			drm_info(&dev_priv->drm,
205 static int lpe_audio_setup(struct drm_i915_private *dev_priv)
209 	dev_priv->display.audio.lpe.irq = irq_alloc_desc(0);
210 	if (dev_priv->display.audio.lpe.irq < 0) {
211 		drm_err(&dev_priv->drm, "Failed to allocate IRQ desc: %d\n",
212 			dev_priv->display.audio.lpe.irq);
213 		ret = dev_priv->display.audio.lpe.irq;
217 	drm_dbg(&dev_priv->drm, "irq = %d\n", dev_priv->display.audio.lpe.irq);
219 	ret = lpe_audio_irq_init(dev_priv);
222 		drm_err(&dev_priv->drm,
228 	dev_priv->display.audio.lpe.platdev = lpe_audio_platdev_create(dev_priv);
230 	if (IS_ERR(dev_priv->display.audio.lpe.platdev)) {
231 		ret = PTR_ERR(dev_priv->display.audio.lpe.platdev);
232 		drm_err(&dev_priv->drm,
241 	intel_de_write(dev_priv, VLV_AUD_CHICKEN_BIT_REG,
246 	irq_free_desc(dev_priv->display.audio.lpe.irq);
248 	dev_priv->display.audio.lpe.irq = -1;
249 	dev_priv->display.audio.lpe.platdev = NULL;
255  * @dev_priv: the i915 drm device private data
260 void intel_lpe_audio_irq_handler(struct drm_i915_private *dev_priv)
264 	if (!HAS_LPE_AUDIO(dev_priv))
267 	ret = generic_handle_irq(dev_priv->display.audio.lpe.irq);
269 		drm_err_ratelimited(&dev_priv->drm,
276  * @dev_priv: the i915 drm device private data
281 int intel_lpe_audio_init(struct drm_i915_private *dev_priv)
285 	if (lpe_audio_detect(dev_priv)) {
286 		ret = lpe_audio_setup(dev_priv);
288 			drm_err(&dev_priv->drm,
297  * @dev_priv: the i915 drm device private data
301 void intel_lpe_audio_teardown(struct drm_i915_private *dev_priv)
303 	if (!HAS_LPE_AUDIO(dev_priv))
306 	lpe_audio_platdev_destroy(dev_priv);
308 	irq_free_desc(dev_priv->display.audio.lpe.irq);
310 	dev_priv->display.audio.lpe.irq = -1;
311 	dev_priv->display.audio.lpe.platdev = NULL;
317  * @dev_priv: the i915 drm device private data
326 void intel_lpe_audio_notify(struct drm_i915_private *dev_priv,
335 	if (!HAS_LPE_AUDIO(dev_priv))
338 	pdata = dev_get_platdata(&dev_priv->display.audio.lpe.platdev->dev);
343 	audio_enable = intel_de_read(dev_priv, VLV_AUD_PORT_EN_DBG(port));
352 		intel_de_write(dev_priv, VLV_AUD_PORT_EN_DBG(port),
361 		intel_de_write(dev_priv, VLV_AUD_PORT_EN_DBG(port),
366 		pdata->notify_audio_lpe(dev_priv->display.audio.lpe.platdev, port - PORT_B);