102 	struct ht16k33_keypad keypad;  member
369  * This gets the keys from keypad and reports it to input subsystem.
372 static bool ht16k33_keypad_scan(struct ht16k33_keypad *keypad)  in ht16k33_keypad_scan()  argument
374 	const unsigned short *keycodes = keypad->dev->keycode;  in ht16k33_keypad_scan()
382 	rc = i2c_smbus_read_i2c_block_data(keypad->client, 0x40,  in ht16k33_keypad_scan()
385 		dev_err(&keypad->client->dev,  in ht16k33_keypad_scan()
390 	for (col = 0; col < keypad->cols; col++) {  in ht16k33_keypad_scan()
394 		bits_changed = keypad->last_key_state[col] ^ new_state[col];  in ht16k33_keypad_scan()
397 			code = MATRIX_SCAN_CODE(row, col, keypad->row_shift);  in ht16k33_keypad_scan()
398 			input_event(keypad->dev, EV_MSC, MSC_SCAN, code);  in ht16k33_keypad_scan()
399 			input_report_key(keypad->dev, keycodes[code],  in ht16k33_keypad_scan()
403 	input_sync(keypad->dev);  in ht16k33_keypad_scan()
404 	memcpy(keypad->last_key_state, new_state, sizeof(u16) * keypad->cols);  in ht16k33_keypad_scan()
411 	struct ht16k33_keypad *keypad = dev;  in ht16k33_keypad_irq_thread()  local
414 		wait_event_timeout(keypad->wait, keypad->stopped,  in ht16k33_keypad_irq_thread()
415 				    msecs_to_jiffies(keypad->debounce_ms));  in ht16k33_keypad_irq_thread()
416 		if (keypad->stopped)  in ht16k33_keypad_irq_thread()
418 	} while (ht16k33_keypad_scan(keypad));  in ht16k33_keypad_irq_thread()
425 	struct ht16k33_keypad *keypad = input_get_drvdata(dev);  in ht16k33_keypad_start()  local
427 	keypad->stopped = false;  in ht16k33_keypad_start()
429 	enable_irq(keypad->client->irq);  in ht16k33_keypad_start()
436 	struct ht16k33_keypad *keypad = input_get_drvdata(dev);  in ht16k33_keypad_stop()  local
438 	keypad->stopped = true;  in ht16k33_keypad_stop()
440 	wake_up(&keypad->wait);  in ht16k33_keypad_stop()
441 	disable_irq(keypad->client->irq);  in ht16k33_keypad_stop()
518 				struct ht16k33_keypad *keypad)  in ht16k33_keypad_probe()  argument
525 	keypad->client = client;  in ht16k33_keypad_probe()
526 	init_waitqueue_head(&keypad->wait);  in ht16k33_keypad_probe()
528 	keypad->dev = devm_input_allocate_device(dev);  in ht16k33_keypad_probe()
529 	if (!keypad->dev)  in ht16k33_keypad_probe()
532 	input_set_drvdata(keypad->dev, keypad);  in ht16k33_keypad_probe()
534 	keypad->dev->name = DRIVER_NAME"-keypad";  in ht16k33_keypad_probe()
535 	keypad->dev->id.bustype = BUS_I2C;  in ht16k33_keypad_probe()
536 	keypad->dev->open = ht16k33_keypad_start;  in ht16k33_keypad_probe()
537 	keypad->dev->close = ht16k33_keypad_stop;  in ht16k33_keypad_probe()
540 		__set_bit(EV_REP, keypad->dev->evbit);  in ht16k33_keypad_probe()
543 				       &keypad->debounce_ms);  in ht16k33_keypad_probe()
559 	keypad->rows = rows;  in ht16k33_keypad_probe()
560 	keypad->cols = cols;  in ht16k33_keypad_probe()
561 	keypad->row_shift = get_count_order(cols);  in ht16k33_keypad_probe()
564 					 keypad->dev);  in ht16k33_keypad_probe()
573 					DRIVER_NAME, keypad);  in ht16k33_keypad_probe()
580 	ht16k33_keypad_stop(keypad->dev);  in ht16k33_keypad_probe()
582 	return input_register_device(keypad->dev);  in ht16k33_keypad_probe()
756 	/* Keypad */  in ht16k33_probe()
758 		err = ht16k33_keypad_probe(client, &priv->keypad);  in ht16k33_probe()