51 	struct ts4800_ts *ts = dev->private;  in ts4800_ts_open()  local
54 	ts->pendown = false;  in ts4800_ts_open()
55 	ts->debounce = DEBOUNCE_COUNT;  in ts4800_ts_open()
57 	ret = regmap_update_bits(ts->regmap, ts->reg, ts->bit, ts->bit);  in ts4800_ts_open()
59 		dev_warn(ts->dev, "Failed to enable touchscreen\n");  in ts4800_ts_open()
64 	struct ts4800_ts *ts = dev->private;  in ts4800_ts_close()  local
67 	ret = regmap_update_bits(ts->regmap, ts->reg, ts->bit, 0);  in ts4800_ts_close()
69 		dev_warn(ts->dev, "Failed to disable touchscreen\n");  in ts4800_ts_close()
76 	struct ts4800_ts *ts = dev->private;  in ts4800_ts_poll()  local
77 	u16 last_x = readw(ts->base + X_OFFSET);  in ts4800_ts_poll()
78 	u16 last_y = readw(ts->base + Y_OFFSET);  in ts4800_ts_poll()
82 		if (ts->debounce) {  in ts4800_ts_poll()
83 			ts->debounce--;  in ts4800_ts_poll()
87 		if (!ts->pendown) {  in ts4800_ts_poll()
89 			ts->pendown = true;  in ts4800_ts_poll()
98 	} else if (ts->pendown) {  in ts4800_ts_poll()
99 		ts->pendown = false;  in ts4800_ts_poll()
100 		ts->debounce = DEBOUNCE_COUNT;  in ts4800_ts_poll()
107 			   struct ts4800_ts *ts)  in ts4800_parse_dt()  argument
121 	ts->regmap = syscon_node_to_regmap(syscon_np);  in ts4800_parse_dt()
123 	if (IS_ERR(ts->regmap)) {  in ts4800_parse_dt()
125 		return PTR_ERR(ts->regmap);  in ts4800_parse_dt()
134 	ts->reg = reg;  in ts4800_parse_dt()
142 	ts->bit = BIT(bit);  in ts4800_parse_dt()
150 	struct ts4800_ts *ts;  in ts4800_ts_probe()  local
153 	ts = devm_kzalloc(&pdev->dev, sizeof(*ts), GFP_KERNEL);  in ts4800_ts_probe()
154 	if (!ts)  in ts4800_ts_probe()
157 	error = ts4800_parse_dt(pdev, ts);  in ts4800_ts_probe()
161 	ts->base = devm_platform_ioremap_resource(pdev, 0);  in ts4800_ts_probe()
162 	if (IS_ERR(ts->base))  in ts4800_ts_probe()
163 		return PTR_ERR(ts->base);  in ts4800_ts_probe()
169 	snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&pdev->dev));  in ts4800_ts_probe()
170 	ts->poll_dev = poll_dev;  in ts4800_ts_probe()
171 	ts->dev = &pdev->dev;  in ts4800_ts_probe()
173 	poll_dev->private = ts;  in ts4800_ts_probe()
180 	poll_dev->input->phys = ts->phys;  in ts4800_ts_probe()