185 static void ivch_dump_regs(struct intel_dvo_device *dvo);
191 static bool ivch_read(struct intel_dvo_device *dvo, int addr, uint16_t *data)  in ivch_read()  argument
193 	struct ivch_priv *priv = dvo->dev_priv;  in ivch_read()
194 	struct i2c_adapter *adapter = dvo->i2c_bus;  in ivch_read()
200 			.addr = dvo->slave_addr,  in ivch_read()
211 			.addr = dvo->slave_addr,  in ivch_read()
228 			  addr, adapter->name, dvo->slave_addr);  in ivch_read()
234 static bool ivch_write(struct intel_dvo_device *dvo, int addr, uint16_t data)  in ivch_write()  argument
236 	struct ivch_priv *priv = dvo->dev_priv;  in ivch_write()
237 	struct i2c_adapter *adapter = dvo->i2c_bus;  in ivch_write()
240 		.addr = dvo->slave_addr,  in ivch_write()
255 			  addr, adapter->name, dvo->slave_addr);  in ivch_write()
262 static bool ivch_init(struct intel_dvo_device *dvo,  in ivch_init()  argument
273 	dvo->i2c_bus = adapter;  in ivch_init()
274 	dvo->dev_priv = priv;  in ivch_init()
277 	if (!ivch_read(dvo, VR00, &temp))  in ivch_init()
285 	if ((temp & VR00_BASE_ADDRESS_MASK) != dvo->slave_addr) {  in ivch_init()
288 			  (temp & VR00_BASE_ADDRESS_MASK), dvo->slave_addr);  in ivch_init()
292 	ivch_read(dvo, VR20, &priv->width);  in ivch_init()
293 	ivch_read(dvo, VR21, &priv->height);  in ivch_init()
299 		ivch_read(dvo, backup_addresses[i], priv->reg_backup + i);  in ivch_init()
301 	ivch_dump_regs(dvo);  in ivch_init()
310 static enum drm_connector_status ivch_detect(struct intel_dvo_device *dvo)  in ivch_detect()  argument
315 static enum drm_mode_status ivch_mode_valid(struct intel_dvo_device *dvo,  in ivch_mode_valid()  argument
328 static void ivch_reset(struct intel_dvo_device *dvo)  in ivch_reset()  argument
330 	struct ivch_priv *priv = dvo->dev_priv;  in ivch_reset()
335 	ivch_write(dvo, VR10, 0x0000);  in ivch_reset()
338 		ivch_write(dvo, backup_addresses[i], priv->reg_backup[i]);  in ivch_reset()
342 static void ivch_dpms(struct intel_dvo_device *dvo, bool enable)  in ivch_dpms()  argument
347 	ivch_reset(dvo);  in ivch_dpms()
350 	if (!ivch_read(dvo, VR01, &vr01))  in ivch_dpms()
358 	ivch_write(dvo, VR80, backlight);  in ivch_dpms()
365 	ivch_write(dvo, VR01, vr01);  in ivch_dpms()
369 		if (!ivch_read(dvo, VR30, &vr30))  in ivch_dpms()
380 static bool ivch_get_hw_state(struct intel_dvo_device *dvo)  in ivch_get_hw_state()  argument
384 	ivch_reset(dvo);  in ivch_get_hw_state()
387 	if (!ivch_read(dvo, VR01, &vr01))  in ivch_get_hw_state()
396 static void ivch_mode_set(struct intel_dvo_device *dvo,  in ivch_mode_set()  argument
400 	struct ivch_priv *priv = dvo->dev_priv;  in ivch_mode_set()
405 	ivch_reset(dvo);  in ivch_mode_set()
427 		ivch_write(dvo, VR42, x_ratio);  in ivch_mode_set()
428 		ivch_write(dvo, VR41, y_ratio);  in ivch_mode_set()
435 	ivch_write(dvo, VR01, vr01);  in ivch_mode_set()
436 	ivch_write(dvo, VR40, vr40);  in ivch_mode_set()
439 static void ivch_dump_regs(struct intel_dvo_device *dvo)  in ivch_dump_regs()  argument
443 	ivch_read(dvo, VR00, &val);  in ivch_dump_regs()
445 	ivch_read(dvo, VR01, &val);  in ivch_dump_regs()
447 	ivch_read(dvo, VR10, &val);  in ivch_dump_regs()
449 	ivch_read(dvo, VR30, &val);  in ivch_dump_regs()
451 	ivch_read(dvo, VR40, &val);  in ivch_dump_regs()
455 	ivch_read(dvo, VR80, &val);  in ivch_dump_regs()
457 	ivch_read(dvo, VR81, &val);  in ivch_dump_regs()
459 	ivch_read(dvo, VR82, &val);  in ivch_dump_regs()
461 	ivch_read(dvo, VR83, &val);  in ivch_dump_regs()
463 	ivch_read(dvo, VR84, &val);  in ivch_dump_regs()
465 	ivch_read(dvo, VR85, &val);  in ivch_dump_regs()
467 	ivch_read(dvo, VR86, &val);  in ivch_dump_regs()
469 	ivch_read(dvo, VR87, &val);  in ivch_dump_regs()
471 	ivch_read(dvo, VR88, &val);  in ivch_dump_regs()
475 	ivch_read(dvo, VR8E, &val);  in ivch_dump_regs()
479 	ivch_read(dvo, VR8F, &val);  in ivch_dump_regs()
483 static void ivch_destroy(struct intel_dvo_device *dvo)  in ivch_destroy()  argument
485 	struct ivch_priv *priv = dvo->dev_priv;  in ivch_destroy()
489 		dvo->dev_priv = NULL;  in ivch_destroy()