88 static int kbd_readl(struct omap4_keypad *keypad_data, u32 offset)  in kbd_readl()  argument
90 	return __raw_readl(keypad_data->base +  in kbd_readl()
91 				keypad_data->reg_offset + offset);  in kbd_readl()
94 static void kbd_writel(struct omap4_keypad *keypad_data, u32 offset, u32 value)  in kbd_writel()  argument
97 		     keypad_data->base + keypad_data->reg_offset + offset);  in kbd_writel()
100 static int kbd_read_irqreg(struct omap4_keypad *keypad_data, u32 offset)  in kbd_read_irqreg()  argument
102 	return __raw_readl(keypad_data->base +  in kbd_read_irqreg()
103 				keypad_data->irqreg_offset + offset);  in kbd_read_irqreg()
106 static void kbd_write_irqreg(struct omap4_keypad *keypad_data,  in kbd_write_irqreg()  argument
110 		     keypad_data->base + keypad_data->irqreg_offset + offset);  in kbd_write_irqreg()
117 	struct omap4_keypad *keypad_data = dev_id;  in omap4_keypad_irq_handler()  local
119 	if (kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS)) {  in omap4_keypad_irq_handler()
121 		kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,  in omap4_keypad_irq_handler()
131 	struct omap4_keypad *keypad_data = dev_id;  in omap4_keypad_irq_thread_fn()  local
132 	struct input_dev *input_dev = keypad_data->input;  in omap4_keypad_irq_thread_fn()
133 	unsigned char key_state[ARRAY_SIZE(keypad_data->key_state)];  in omap4_keypad_irq_thread_fn()
137 	*new_state = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE31_0);  in omap4_keypad_irq_thread_fn()
138 	*(new_state + 1) = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE63_32);  in omap4_keypad_irq_thread_fn()
140 	for (row = 0; row < keypad_data->rows; row++) {  in omap4_keypad_irq_thread_fn()
141 		changed = key_state[row] ^ keypad_data->key_state[row];  in omap4_keypad_irq_thread_fn()
145 		for (col = 0; col < keypad_data->cols; col++) {  in omap4_keypad_irq_thread_fn()
148 						keypad_data->row_shift);  in omap4_keypad_irq_thread_fn()
151 						 keypad_data->keymap[code],  in omap4_keypad_irq_thread_fn()
159 	memcpy(keypad_data->key_state, key_state,  in omap4_keypad_irq_thread_fn()
160 		sizeof(keypad_data->key_state));  in omap4_keypad_irq_thread_fn()
163 	kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,  in omap4_keypad_irq_thread_fn()
164 			 kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS));  in omap4_keypad_irq_thread_fn()
167 	kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,  in omap4_keypad_irq_thread_fn()
176 	struct omap4_keypad *keypad_data = input_get_drvdata(input);  in omap4_keypad_open()  local
180 	disable_irq(keypad_data->irq);  in omap4_keypad_open()
182 	kbd_writel(keypad_data, OMAP4_KBD_CTRL,  in omap4_keypad_open()
185 	kbd_writel(keypad_data, OMAP4_KBD_DEBOUNCINGTIME,  in omap4_keypad_open()
188 	kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,  in omap4_keypad_open()
189 			 kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS));  in omap4_keypad_open()
190 	kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,  in omap4_keypad_open()
193 	kbd_writel(keypad_data, OMAP4_KBD_WAKEUPENABLE,  in omap4_keypad_open()
196 	enable_irq(keypad_data->irq);  in omap4_keypad_open()
203 	struct omap4_keypad *keypad_data = input_get_drvdata(input);  in omap4_keypad_close()  local
205 	disable_irq(keypad_data->irq);  in omap4_keypad_close()
208 	kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,  in omap4_keypad_close()
212 	kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,  in omap4_keypad_close()
213 			 kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS));  in omap4_keypad_close()
215 	enable_irq(keypad_data->irq);  in omap4_keypad_close()
221 				 struct omap4_keypad *keypad_data)  in omap4_keypad_parse_dt()  argument
226 	err = matrix_keypad_parse_of_params(dev, &keypad_data->rows,  in omap4_keypad_parse_dt()
227 					    &keypad_data->cols);  in omap4_keypad_parse_dt()
232 		keypad_data->no_autorepeat = true;  in omap4_keypad_parse_dt()
239 	struct omap4_keypad *keypad_data;  in omap4_keypad_probe()  local
259 	keypad_data = kzalloc(sizeof(struct omap4_keypad), GFP_KERNEL);  in omap4_keypad_probe()
260 	if (!keypad_data) {  in omap4_keypad_probe()
265 	keypad_data->irq = irq;  in omap4_keypad_probe()
267 	error = omap4_keypad_parse_dt(&pdev->dev, keypad_data);  in omap4_keypad_probe()
278 	keypad_data->base = ioremap(res->start, resource_size(res));  in omap4_keypad_probe()
279 	if (!keypad_data->base) {  in omap4_keypad_probe()
296 	rev = __raw_readl(keypad_data->base + OMAP4_KBD_REVISION);  in omap4_keypad_probe()
301 		keypad_data->reg_offset = 0x00;  in omap4_keypad_probe()
302 		keypad_data->irqreg_offset = 0x00;  in omap4_keypad_probe()
305 		keypad_data->reg_offset = 0x10;  in omap4_keypad_probe()
306 		keypad_data->irqreg_offset = 0x0c;  in omap4_keypad_probe()
316 	keypad_data->input = input_dev = input_allocate_device();  in omap4_keypad_probe()
333 	if (!keypad_data->no_autorepeat)  in omap4_keypad_probe()
336 	input_set_drvdata(input_dev, keypad_data);  in omap4_keypad_probe()
338 	keypad_data->row_shift = get_count_order(keypad_data->cols);  in omap4_keypad_probe()
339 	max_keys = keypad_data->rows << keypad_data->row_shift;  in omap4_keypad_probe()
340 	keypad_data->keymap = kzalloc(max_keys * sizeof(keypad_data->keymap[0]),  in omap4_keypad_probe()
342 	if (!keypad_data->keymap) {  in omap4_keypad_probe()
349 					   keypad_data->rows, keypad_data->cols,  in omap4_keypad_probe()
350 					   keypad_data->keymap, input_dev);  in omap4_keypad_probe()
356 	error = request_threaded_irq(keypad_data->irq, omap4_keypad_irq_handler,  in omap4_keypad_probe()
358 				     "omap4-keypad", keypad_data);  in omap4_keypad_probe()
367 	error = input_register_device(keypad_data->input);  in omap4_keypad_probe()
373 	platform_set_drvdata(pdev, keypad_data);  in omap4_keypad_probe()
379 	free_irq(keypad_data->irq, keypad_data);  in omap4_keypad_probe()
381 	kfree(keypad_data->keymap);  in omap4_keypad_probe()
387 	iounmap(keypad_data->base);  in omap4_keypad_probe()
391 	kfree(keypad_data);  in omap4_keypad_probe()
397 	struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);  in omap4_keypad_remove()  local
400 	free_irq(keypad_data->irq, keypad_data);  in omap4_keypad_remove()
406 	input_unregister_device(keypad_data->input);  in omap4_keypad_remove()
408 	iounmap(keypad_data->base);  in omap4_keypad_remove()
413 	kfree(keypad_data->keymap);  in omap4_keypad_remove()
414 	kfree(keypad_data);  in omap4_keypad_remove()
429 	struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);  in omap4_keypad_suspend()  local
433 		error = enable_irq_wake(keypad_data->irq);  in omap4_keypad_suspend()
435 			keypad_data->irq_wake_enabled = true;  in omap4_keypad_suspend()
444 	struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);  in omap4_keypad_resume()  local
446 	if (device_may_wakeup(&pdev->dev) && keypad_data->irq_wake_enabled) {  in omap4_keypad_resume()
447 		disable_irq_wake(keypad_data->irq);  in omap4_keypad_resume()
448 		keypad_data->irq_wake_enabled = false;  in omap4_keypad_resume()