73 	struct ht16k33_keypad keypad;  member
241  * This gets the keys from keypad and reports it to input subsystem.
244 static bool ht16k33_keypad_scan(struct ht16k33_keypad *keypad)  in ht16k33_keypad_scan()  argument
246 	const unsigned short *keycodes = keypad->dev->keycode;  in ht16k33_keypad_scan()
254 	rc = i2c_smbus_read_i2c_block_data(keypad->client, 0x40,  in ht16k33_keypad_scan()
257 		dev_err(&keypad->client->dev,  in ht16k33_keypad_scan()
262 	for (col = 0; col < keypad->cols; col++) {  in ht16k33_keypad_scan()
266 		bits_changed = keypad->last_key_state[col] ^ new_state[col];  in ht16k33_keypad_scan()
269 			code = MATRIX_SCAN_CODE(row, col, keypad->row_shift);  in ht16k33_keypad_scan()
270 			input_event(keypad->dev, EV_MSC, MSC_SCAN, code);  in ht16k33_keypad_scan()
271 			input_report_key(keypad->dev, keycodes[code],  in ht16k33_keypad_scan()
275 	input_sync(keypad->dev);  in ht16k33_keypad_scan()
276 	memcpy(keypad->last_key_state, new_state, sizeof(u16) * keypad->cols);  in ht16k33_keypad_scan()
283 	struct ht16k33_keypad *keypad = dev;  in ht16k33_keypad_irq_thread()  local
286 		wait_event_timeout(keypad->wait, keypad->stopped,  in ht16k33_keypad_irq_thread()
287 				    msecs_to_jiffies(keypad->debounce_ms));  in ht16k33_keypad_irq_thread()
288 		if (keypad->stopped)  in ht16k33_keypad_irq_thread()
290 	} while (ht16k33_keypad_scan(keypad));  in ht16k33_keypad_irq_thread()
297 	struct ht16k33_keypad *keypad = input_get_drvdata(dev);  in ht16k33_keypad_start()  local
299 	keypad->stopped = false;  in ht16k33_keypad_start()
301 	enable_irq(keypad->client->irq);  in ht16k33_keypad_start()
308 	struct ht16k33_keypad *keypad = input_get_drvdata(dev);  in ht16k33_keypad_stop()  local
310 	keypad->stopped = true;  in ht16k33_keypad_stop()
312 	wake_up(&keypad->wait);  in ht16k33_keypad_stop()
313 	disable_irq(keypad->client->irq);  in ht16k33_keypad_stop()
317 				struct ht16k33_keypad *keypad)  in ht16k33_keypad_probe()  argument
324 	keypad->client = client;  in ht16k33_keypad_probe()
325 	init_waitqueue_head(&keypad->wait);  in ht16k33_keypad_probe()
327 	keypad->dev = devm_input_allocate_device(&client->dev);  in ht16k33_keypad_probe()
328 	if (!keypad->dev)  in ht16k33_keypad_probe()
331 	input_set_drvdata(keypad->dev, keypad);  in ht16k33_keypad_probe()
333 	keypad->dev->name = DRIVER_NAME"-keypad";  in ht16k33_keypad_probe()
334 	keypad->dev->id.bustype = BUS_I2C;  in ht16k33_keypad_probe()
335 	keypad->dev->open = ht16k33_keypad_start;  in ht16k33_keypad_probe()
336 	keypad->dev->close = ht16k33_keypad_stop;  in ht16k33_keypad_probe()
339 		__set_bit(EV_REP, keypad->dev->evbit);  in ht16k33_keypad_probe()
342 				   &keypad->debounce_ms);  in ht16k33_keypad_probe()
358 	keypad->rows = rows;  in ht16k33_keypad_probe()
359 	keypad->cols = cols;  in ht16k33_keypad_probe()
360 	keypad->row_shift = get_count_order(cols);  in ht16k33_keypad_probe()
363 					 keypad->dev);  in ht16k33_keypad_probe()
372 					DRIVER_NAME, keypad);  in ht16k33_keypad_probe()
379 	ht16k33_keypad_stop(keypad->dev);  in ht16k33_keypad_probe()
381 	err = input_register_device(keypad->dev);  in ht16k33_keypad_probe()
456 	/* Keypad */  in ht16k33_probe()
458 		err = ht16k33_keypad_probe(client, &priv->keypad);  in ht16k33_probe()