44 	struct st_keyscan *keypad = dev_id;  in keyscan_isr()  local
45 	unsigned short *keycode = keypad->input_dev->keycode;  in keyscan_isr()
49 	state = readl(keypad->base + KEYSCAN_MATRIX_STATE_OFF) & 0xffff;  in keyscan_isr()
50 	change = keypad->last_state ^ state;  in keyscan_isr()
51 	keypad->last_state = state;  in keyscan_isr()
54 		input_report_key(keypad->input_dev,  in keyscan_isr()
57 	input_sync(keypad->input_dev);  in keyscan_isr()
62 static int keyscan_start(struct st_keyscan *keypad)  in keyscan_start()  argument
66 	error = clk_enable(keypad->clk);  in keyscan_start()
70 	writel(keypad->debounce_us * (clk_get_rate(keypad->clk) / 1000000),  in keyscan_start()
71 	       keypad->base + KEYSCAN_DEBOUNCE_TIME_OFF);  in keyscan_start()
73 	writel(((keypad->n_cols - 1) << KEYSCAN_MATRIX_DIM_X_SHIFT) |  in keyscan_start()
74 	       ((keypad->n_rows - 1) << KEYSCAN_MATRIX_DIM_Y_SHIFT),  in keyscan_start()
75 	       keypad->base + KEYSCAN_MATRIX_DIM_OFF);  in keyscan_start()
77 	writel(KEYSCAN_CONFIG_ENABLE, keypad->base + KEYSCAN_CONFIG_OFF);  in keyscan_start()
82 static void keyscan_stop(struct st_keyscan *keypad)  in keyscan_stop()  argument
84 	writel(0, keypad->base + KEYSCAN_CONFIG_OFF);  in keyscan_stop()
86 	clk_disable(keypad->clk);  in keyscan_stop()
91 	struct st_keyscan *keypad = input_get_drvdata(dev);  in keyscan_open()  local
93 	return keyscan_start(keypad);  in keyscan_open()
98 	struct st_keyscan *keypad = input_get_drvdata(dev);  in keyscan_close()  local
100 	keyscan_stop(keypad);  in keyscan_close()
222 	struct st_keyscan *keypad = platform_get_drvdata(pdev);  in keyscan_suspend()  local
223 	struct input_dev *input = keypad->input_dev;  in keyscan_suspend()
228 		enable_irq_wake(keypad->irq);  in keyscan_suspend()
230 		keyscan_stop(keypad);  in keyscan_suspend()
239 	struct st_keyscan *keypad = platform_get_drvdata(pdev);  in keyscan_resume()  local
240 	struct input_dev *input = keypad->input_dev;  in keyscan_resume()
246 		disable_irq_wake(keypad->irq);  in keyscan_resume()
248 		retval = keyscan_start(keypad);  in keyscan_resume()