1 // SPDX-License-Identifier: GPL-2.0-only
23 				  unsigned int rows, unsigned int cols,  in matrix_keypad_map_key()  argument
26 	unsigned short *keymap = input_dev->keycode;  in matrix_keypad_map_key()
31 	if (row >= rows || col >= cols) {  in matrix_keypad_map_key()
32 		dev_err(input_dev->dev.parent,  in matrix_keypad_map_key()
33 			"%s: invalid keymap entry 0x%x (row: %d, col: %d, rows: %d, cols: %d)\n",  in matrix_keypad_map_key()
34 			__func__, key, row, col, rows, cols);  in matrix_keypad_map_key()
39 	__set_bit(code, input_dev->keybit);  in matrix_keypad_map_key()
45  * matrix_keypad_parse_properties() - Read properties of matrix keypad
48  * @rows: Returns number of matrix rows
53 				   unsigned int *rows, unsigned int *cols)  in matrix_keypad_parse_properties()  argument
55 	*rows = *cols = 0;  in matrix_keypad_parse_properties()
57 	device_property_read_u32(dev, "keypad,num-rows", rows);  in matrix_keypad_parse_properties()
58 	device_property_read_u32(dev, "keypad,num-columns", cols);  in matrix_keypad_parse_properties()
60 	if (!*rows || !*cols) {  in matrix_keypad_parse_properties()
61 		dev_err(dev, "number of keypad rows/columns not specified\n");  in matrix_keypad_parse_properties()
62 		return -EINVAL;  in matrix_keypad_parse_properties()
70 				      unsigned int rows, unsigned int cols,  in matrix_keypad_parse_keymap()  argument
73 	struct device *dev = input_dev->dev.parent;  in matrix_keypad_parse_keymap()
75 	unsigned int max_keys = rows << row_shift;  in matrix_keypad_parse_keymap()
87 		return size < 0 ? size : -EINVAL;  in matrix_keypad_parse_keymap()
93 		return -EINVAL;  in matrix_keypad_parse_keymap()
98 		return -ENOMEM;  in matrix_keypad_parse_keymap()
108 		if (!matrix_keypad_map_key(input_dev, rows, cols,  in matrix_keypad_parse_keymap()
110 			return -EINVAL;  in matrix_keypad_parse_keymap()
117  * matrix_keypad_build_keymap - convert platform keymap into matrix keymap
121  * @rows: number of rows in target keymap array
140  * Callers are expected to set up input_dev->dev.parent before calling this
145 			       unsigned int rows, unsigned int cols,  in matrix_keypad_build_keymap()  argument
150 	size_t max_keys = rows << row_shift;  in matrix_keypad_build_keymap()
154 	if (WARN_ON(!input_dev->dev.parent))  in matrix_keypad_build_keymap()
155 		return -EINVAL;  in matrix_keypad_build_keymap()
158 		keymap = devm_kcalloc(input_dev->dev.parent,  in matrix_keypad_build_keymap()
162 			dev_err(input_dev->dev.parent,  in matrix_keypad_build_keymap()
164 			return -ENOMEM;  in matrix_keypad_build_keymap()
168 	input_dev->keycode = keymap;  in matrix_keypad_build_keymap()
169 	input_dev->keycodesize = sizeof(*keymap);  in matrix_keypad_build_keymap()
170 	input_dev->keycodemax = max_keys;  in matrix_keypad_build_keymap()
172 	__set_bit(EV_KEY, input_dev->evbit);  in matrix_keypad_build_keymap()
175 		for (i = 0; i < keymap_data->keymap_size; i++) {  in matrix_keypad_build_keymap()
176 			unsigned int key = keymap_data->keymap[i];  in matrix_keypad_build_keymap()
178 			if (!matrix_keypad_map_key(input_dev, rows, cols,  in matrix_keypad_build_keymap()
180 				return -EINVAL;  in matrix_keypad_build_keymap()
183 		error = matrix_keypad_parse_keymap(keymap_name, rows, cols,  in matrix_keypad_build_keymap()
189 	__clear_bit(KEY_RESERVED, input_dev->keybit);  in matrix_keypad_build_keymap()