33 static void da9052_ts_adc_toggle(struct da9052_tsi *tsi, bool on)  in da9052_ts_adc_toggle()  argument
35 	da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG, 1 << 0, on);  in da9052_ts_adc_toggle()
36 	tsi->adc_on = on;  in da9052_ts_adc_toggle()
41 	struct da9052_tsi *tsi = data;  in da9052_ts_pendwn_irq()  local
43 	if (!tsi->stopped) {  in da9052_ts_pendwn_irq()
45 		da9052_disable_irq_nosync(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_pendwn_irq()
46 		da9052_enable_irq(tsi->da9052, DA9052_IRQ_TSIREADY);  in da9052_ts_pendwn_irq()
48 		da9052_ts_adc_toggle(tsi, true);  in da9052_ts_pendwn_irq()
50 		schedule_delayed_work(&tsi->ts_pen_work, HZ / 50);  in da9052_ts_pendwn_irq()
56 static void da9052_ts_read(struct da9052_tsi *tsi)  in da9052_ts_read()  argument
58 	struct input_dev *input = tsi->dev;  in da9052_ts_read()
63 	ret = da9052_reg_read(tsi->da9052, DA9052_TSI_X_MSB_REG);  in da9052_ts_read()
69 	ret = da9052_reg_read(tsi->da9052, DA9052_TSI_Y_MSB_REG);  in da9052_ts_read()
75 	ret = da9052_reg_read(tsi->da9052, DA9052_TSI_Z_MSB_REG);  in da9052_ts_read()
81 	ret = da9052_reg_read(tsi->da9052, DA9052_TSI_LSB_REG);  in da9052_ts_read()
100 	struct da9052_tsi *tsi = data;  in da9052_ts_datardy_irq()  local
102 	da9052_ts_read(tsi);  in da9052_ts_datardy_irq()
109 	struct da9052_tsi *tsi = container_of(work, struct da9052_tsi,  in da9052_ts_pen_work()  local
111 	if (!tsi->stopped) {  in da9052_ts_pen_work()
112 		int ret = da9052_reg_read(tsi->da9052, DA9052_TSI_LSB_REG);  in da9052_ts_pen_work()
115 			schedule_delayed_work(&tsi->ts_pen_work, HZ / 50);  in da9052_ts_pen_work()
117 			struct input_dev *input = tsi->dev;  in da9052_ts_pen_work()
120 			da9052_ts_adc_toggle(tsi, false);  in da9052_ts_pen_work()
131 			ret = da9052_reg_update(tsi->da9052,  in da9052_ts_pen_work()
137 			da9052_disable_irq(tsi->da9052, DA9052_IRQ_TSIREADY);  in da9052_ts_pen_work()
138 			da9052_enable_irq(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_pen_work()
162 static int da9052_configure_tsi(struct da9052_tsi *tsi)  in da9052_configure_tsi()  argument
166 	error = da9052_ts_configure_gpio(tsi->da9052);  in da9052_configure_tsi()
171 	error = da9052_reg_update(tsi->da9052, DA9052_ADC_CONT_REG,  in da9052_configure_tsi()
177 	error = da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG, 0xFC, 0xC0);  in da9052_configure_tsi()
182 	error = da9052_reg_write(tsi->da9052, DA9052_LDO9_REG, 0x59);  in da9052_configure_tsi()
191 	struct da9052_tsi *tsi = input_get_drvdata(input_dev);  in da9052_ts_input_open()  local
193 	tsi->stopped = false;  in da9052_ts_input_open()
197 	da9052_enable_irq(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_input_open()
200 	return da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG,  in da9052_ts_input_open()
206 	struct da9052_tsi *tsi = input_get_drvdata(input_dev);  in da9052_ts_input_close()  local
208 	tsi->stopped = true;  in da9052_ts_input_close()
210 	da9052_disable_irq(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_input_close()
211 	cancel_delayed_work_sync(&tsi->ts_pen_work);  in da9052_ts_input_close()
213 	if (tsi->adc_on) {  in da9052_ts_input_close()
214 		da9052_disable_irq(tsi->da9052, DA9052_IRQ_TSIREADY);  in da9052_ts_input_close()
215 		da9052_ts_adc_toggle(tsi, false);  in da9052_ts_input_close()
222 		da9052_enable_irq(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_input_close()
226 	da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG, 1 << 1, 0);  in da9052_ts_input_close()
232 	struct da9052_tsi *tsi;  in da9052_ts_probe()  local
240 	tsi = kzalloc(sizeof(struct da9052_tsi), GFP_KERNEL);  in da9052_ts_probe()
242 	if (!tsi || !input_dev) {  in da9052_ts_probe()
247 	tsi->da9052 = da9052;  in da9052_ts_probe()
248 	tsi->dev = input_dev;  in da9052_ts_probe()
249 	tsi->stopped = true;  in da9052_ts_probe()
250 	INIT_DELAYED_WORK(&tsi->ts_pen_work, da9052_ts_pen_work);  in da9052_ts_probe()
268 	input_set_drvdata(input_dev, tsi);  in da9052_ts_probe()
271 	da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG, 1 << 1, 0);  in da9052_ts_probe()
274 	da9052_ts_adc_toggle(tsi, false);  in da9052_ts_probe()
276 	error = da9052_request_irq(tsi->da9052, DA9052_IRQ_PENDOWN,  in da9052_ts_probe()
277 				"pendown-irq", da9052_ts_pendwn_irq, tsi);  in da9052_ts_probe()
279 		dev_err(tsi->da9052->dev,  in da9052_ts_probe()
284 	error = da9052_request_irq(tsi->da9052, DA9052_IRQ_TSIREADY,  in da9052_ts_probe()
285 				"tsiready-irq", da9052_ts_datardy_irq, tsi);  in da9052_ts_probe()
287 		dev_err(tsi->da9052->dev,  in da9052_ts_probe()
293 	da9052_disable_irq(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_probe()
294 	da9052_disable_irq(tsi->da9052, DA9052_IRQ_TSIREADY);  in da9052_ts_probe()
296 	error = da9052_configure_tsi(tsi);  in da9052_ts_probe()
300 	error = input_register_device(tsi->dev);  in da9052_ts_probe()
304 	platform_set_drvdata(pdev, tsi);  in da9052_ts_probe()
309 	da9052_free_irq(tsi->da9052, DA9052_IRQ_TSIREADY, tsi);  in da9052_ts_probe()
311 	da9052_free_irq(tsi->da9052, DA9052_IRQ_PENDOWN, tsi);  in da9052_ts_probe()
313 	kfree(tsi);  in da9052_ts_probe()
321 	struct da9052_tsi *tsi = platform_get_drvdata(pdev);  in da9052_ts_remove()  local
323 	da9052_reg_write(tsi->da9052, DA9052_LDO9_REG, 0x19);  in da9052_ts_remove()
325 	da9052_free_irq(tsi->da9052, DA9052_IRQ_TSIREADY, tsi);  in da9052_ts_remove()
326 	da9052_free_irq(tsi->da9052, DA9052_IRQ_PENDOWN, tsi);  in da9052_ts_remove()
328 	input_unregister_device(tsi->dev);  in da9052_ts_remove()
329 	kfree(tsi);  in da9052_ts_remove()