41 	struct st_keyscan *keypad = dev_id;  in keyscan_isr()  local
42 	unsigned short *keycode = keypad->input_dev->keycode;  in keyscan_isr()
46 	state = readl(keypad->base + KEYSCAN_MATRIX_STATE_OFF) & 0xffff;  in keyscan_isr()
47 	change = keypad->last_state ^ state;  in keyscan_isr()
48 	keypad->last_state = state;  in keyscan_isr()
51 		input_report_key(keypad->input_dev,  in keyscan_isr()
54 	input_sync(keypad->input_dev);  in keyscan_isr()
59 static int keyscan_start(struct st_keyscan *keypad)  in keyscan_start()  argument
63 	error = clk_enable(keypad->clk);  in keyscan_start()
67 	writel(keypad->debounce_us * (clk_get_rate(keypad->clk) / 1000000),  in keyscan_start()
68 	       keypad->base + KEYSCAN_DEBOUNCE_TIME_OFF);  in keyscan_start()
70 	writel(((keypad->n_cols - 1) << KEYSCAN_MATRIX_DIM_X_SHIFT) |  in keyscan_start()
71 	       ((keypad->n_rows - 1) << KEYSCAN_MATRIX_DIM_Y_SHIFT),  in keyscan_start()
72 	       keypad->base + KEYSCAN_MATRIX_DIM_OFF);  in keyscan_start()
74 	writel(KEYSCAN_CONFIG_ENABLE, keypad->base + KEYSCAN_CONFIG_OFF);  in keyscan_start()
79 static void keyscan_stop(struct st_keyscan *keypad)  in keyscan_stop()  argument
81 	writel(0, keypad->base + KEYSCAN_CONFIG_OFF);  in keyscan_stop()
83 	clk_disable(keypad->clk);  in keyscan_stop()
88 	struct st_keyscan *keypad = input_get_drvdata(dev);  in keyscan_open()  local
90 	return keyscan_start(keypad);  in keyscan_open()
95 	struct st_keyscan *keypad = input_get_drvdata(dev);  in keyscan_close()  local
97 	keyscan_stop(keypad);  in keyscan_close()
109 		dev_err(dev, "failed to parse keypad params\n");  in keypad_matrix_key_parse_dt()
217 	struct st_keyscan *keypad = platform_get_drvdata(pdev);  in keyscan_suspend()  local
218 	struct input_dev *input = keypad->input_dev;  in keyscan_suspend()
223 		enable_irq_wake(keypad->irq);  in keyscan_suspend()
225 		keyscan_stop(keypad);  in keyscan_suspend()
234 	struct st_keyscan *keypad = platform_get_drvdata(pdev);  in keyscan_resume()  local
235 	struct input_dev *input = keypad->input_dev;  in keyscan_resume()
241 		disable_irq_wake(keypad->irq);  in keyscan_resume()
243 		retval = keyscan_start(keypad);  in keyscan_resume()