43 	struct st_keyscan *keypad = dev_id;  in keyscan_isr()  local
44 	unsigned short *keycode = keypad->input_dev->keycode;  in keyscan_isr()
48 	state = readl(keypad->base + KEYSCAN_MATRIX_STATE_OFF) & 0xffff;  in keyscan_isr()
49 	change = keypad->last_state ^ state;  in keyscan_isr()
50 	keypad->last_state = state;  in keyscan_isr()
53 		input_report_key(keypad->input_dev,  in keyscan_isr()
56 	input_sync(keypad->input_dev);  in keyscan_isr()
61 static int keyscan_start(struct st_keyscan *keypad)  in keyscan_start()  argument
65 	error = clk_enable(keypad->clk);  in keyscan_start()
69 	writel(keypad->debounce_us * (clk_get_rate(keypad->clk) / 1000000),  in keyscan_start()
70 	       keypad->base + KEYSCAN_DEBOUNCE_TIME_OFF);  in keyscan_start()
72 	writel(((keypad->n_cols - 1) << KEYSCAN_MATRIX_DIM_X_SHIFT) |  in keyscan_start()
73 	       ((keypad->n_rows - 1) << KEYSCAN_MATRIX_DIM_Y_SHIFT),  in keyscan_start()
74 	       keypad->base + KEYSCAN_MATRIX_DIM_OFF);  in keyscan_start()
76 	writel(KEYSCAN_CONFIG_ENABLE, keypad->base + KEYSCAN_CONFIG_OFF);  in keyscan_start()
81 static void keyscan_stop(struct st_keyscan *keypad)  in keyscan_stop()  argument
83 	writel(0, keypad->base + KEYSCAN_CONFIG_OFF);  in keyscan_stop()
85 	clk_disable(keypad->clk);  in keyscan_stop()
90 	struct st_keyscan *keypad = input_get_drvdata(dev);  in keyscan_open()  local
92 	return keyscan_start(keypad);  in keyscan_open()
97 	struct st_keyscan *keypad = input_get_drvdata(dev);  in keyscan_close()  local
99 	keyscan_stop(keypad);  in keyscan_close()
111 		dev_err(dev, "failed to parse keypad params\n");  in keypad_matrix_key_parse_dt()
216 	struct st_keyscan *keypad = platform_get_drvdata(pdev);  in keyscan_suspend()  local
217 	struct input_dev *input = keypad->input_dev;  in keyscan_suspend()
222 		enable_irq_wake(keypad->irq);  in keyscan_suspend()
224 		keyscan_stop(keypad);  in keyscan_suspend()
233 	struct st_keyscan *keypad = platform_get_drvdata(pdev);  in keyscan_resume()  local
234 	struct input_dev *input = keypad->input_dev;  in keyscan_resume()
240 		disable_irq_wake(keypad->irq);  in keyscan_resume()
242 		retval = keyscan_start(keypad);  in keyscan_resume()