input/keyboard/mt6779-keypad.c

16 #define MTK_KPD_NAME		"mt6779-keypad"
50 	struct mt6779_keypad *keypad = dev_id;
51 	const unsigned short *keycode = keypad->input_dev->keycode;
57 	unsigned int row_shift = get_count_order(keypad->n_cols);
60 	regmap_bulk_read(keypad->regmap, MTK_KPD_MEM,
63 	bitmap_xor(change, new_state, keypad->keymap_state, MTK_KPD_NUM_BITS);
74 		keypad->calc_row_col(key, &row, &col);
79 		dev_dbg(&keypad->input_dev->dev, "%s",
82 		input_event(keypad->input_dev, EV_MSC, MSC_SCAN, scancode);
83 		input_report_key(keypad->input_dev, keycode[scancode], pressed);
84 		input_sync(keypad->input_dev);
86 		dev_dbg(&keypad->input_dev->dev,
90 	bitmap_copy(keypad->keymap_state, new_state, MTK_KPD_NUM_BITS);
118 	struct mt6779_keypad *keypad;
126 	keypad = devm_kzalloc(&pdev->dev, sizeof(*keypad), GFP_KERNEL);
127 	if (!keypad)
134 	keypad->regmap = devm_regmap_init_mmio(&pdev->dev, base,
136 	if (IS_ERR(keypad->regmap)) {
138 			"regmap init failed:%pe\n", keypad->regmap);
139 		return PTR_ERR(keypad->regmap);
142 	bitmap_fill(keypad->keymap_state, MTK_KPD_NUM_BITS);
144 	keypad->input_dev = devm_input_allocate_device(&pdev->dev);
145 	if (!keypad->input_dev) {
150 	keypad->input_dev->name = MTK_KPD_NAME;
151 	keypad->input_dev->id.bustype = BUS_HOST;
153 	error = matrix_keypad_parse_properties(&pdev->dev, &keypad->n_rows,
154 					       &keypad->n_cols);
156 		dev_err(&pdev->dev, "Failed to parse keypad params\n");
177 		keypad->calc_row_col = mt6779_keypad_calc_row_col_single;
180 		keypad->calc_row_col = mt6779_keypad_calc_row_col_double;
191 		keypad->n_rows, keypad->n_cols, debounce);
194 					   keypad->n_rows, keypad->n_cols,
195 					   NULL, keypad->input_dev);
201 	input_set_capability(keypad->input_dev, EV_MSC, MSC_SCAN);
203 	regmap_write(keypad->regmap, MTK_KPD_DEBOUNCE,
207 		regmap_update_bits(keypad->regmap, MTK_KPD_SEL,
211 	regmap_update_bits(keypad->regmap, MTK_KPD_SEL, MTK_KPD_SEL_ROW,
212 			   MTK_KPD_SEL_ROWMASK(keypad->n_rows));
213 	regmap_update_bits(keypad->regmap, MTK_KPD_SEL, MTK_KPD_SEL_COL,
214 			   MTK_KPD_SEL_COLMASK(keypad->n_cols));
216 	keypad->clk = devm_clk_get(&pdev->dev, "kpd");
217 	if (IS_ERR(keypad->clk))
218 		return PTR_ERR(keypad->clk);
220 	error = clk_prepare_enable(keypad->clk);
222 		dev_err(&pdev->dev, "cannot prepare/enable keypad clock\n");
227 					 keypad->clk);
237 					  IRQF_ONESHOT, MTK_KPD_NAME, keypad);
244 	error = input_register_device(keypad->input_dev);
259 	{ .compatible = "mediatek,mt6779-keypad" },
260 	{ .compatible = "mediatek,mt6873-keypad" },