34 static void da9052_ts_adc_toggle(struct da9052_tsi *tsi, bool on)  in da9052_ts_adc_toggle()  argument
36 	da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG, 1 << 0, on);  in da9052_ts_adc_toggle()
37 	tsi->adc_on = on;  in da9052_ts_adc_toggle()
42 	struct da9052_tsi *tsi = data;  in da9052_ts_pendwn_irq()  local
44 	if (!tsi->stopped) {  in da9052_ts_pendwn_irq()
46 		da9052_disable_irq_nosync(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_pendwn_irq()
47 		da9052_enable_irq(tsi->da9052, DA9052_IRQ_TSIREADY);  in da9052_ts_pendwn_irq()
49 		da9052_ts_adc_toggle(tsi, true);  in da9052_ts_pendwn_irq()
51 		schedule_delayed_work(&tsi->ts_pen_work, HZ / 50);  in da9052_ts_pendwn_irq()
57 static void da9052_ts_read(struct da9052_tsi *tsi)  in da9052_ts_read()  argument
59 	struct input_dev *input = tsi->dev;  in da9052_ts_read()
64 	ret = da9052_reg_read(tsi->da9052, DA9052_TSI_X_MSB_REG);  in da9052_ts_read()
70 	ret = da9052_reg_read(tsi->da9052, DA9052_TSI_Y_MSB_REG);  in da9052_ts_read()
76 	ret = da9052_reg_read(tsi->da9052, DA9052_TSI_Z_MSB_REG);  in da9052_ts_read()
82 	ret = da9052_reg_read(tsi->da9052, DA9052_TSI_LSB_REG);  in da9052_ts_read()
101 	struct da9052_tsi *tsi = data;  in da9052_ts_datardy_irq()  local
103 	da9052_ts_read(tsi);  in da9052_ts_datardy_irq()
110 	struct da9052_tsi *tsi = container_of(work, struct da9052_tsi,  in da9052_ts_pen_work()  local
112 	if (!tsi->stopped) {  in da9052_ts_pen_work()
113 		int ret = da9052_reg_read(tsi->da9052, DA9052_TSI_LSB_REG);  in da9052_ts_pen_work()
116 			schedule_delayed_work(&tsi->ts_pen_work, HZ / 50);  in da9052_ts_pen_work()
118 			struct input_dev *input = tsi->dev;  in da9052_ts_pen_work()
121 			da9052_ts_adc_toggle(tsi, false);  in da9052_ts_pen_work()
132 			ret = da9052_reg_update(tsi->da9052,  in da9052_ts_pen_work()
138 			da9052_disable_irq(tsi->da9052, DA9052_IRQ_TSIREADY);  in da9052_ts_pen_work()
139 			da9052_enable_irq(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_pen_work()
163 static int da9052_configure_tsi(struct da9052_tsi *tsi)  in da9052_configure_tsi()  argument
167 	error = da9052_ts_configure_gpio(tsi->da9052);  in da9052_configure_tsi()
172 	error = da9052_reg_update(tsi->da9052, DA9052_ADC_CONT_REG,  in da9052_configure_tsi()
178 	error = da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG, 0xFC, 0xC0);  in da9052_configure_tsi()
183 	error = da9052_reg_write(tsi->da9052, DA9052_LDO9_REG, 0x59);  in da9052_configure_tsi()
192 	struct da9052_tsi *tsi = input_get_drvdata(input_dev);  in da9052_ts_input_open()  local
194 	tsi->stopped = false;  in da9052_ts_input_open()
198 	da9052_enable_irq(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_input_open()
201 	return da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG,  in da9052_ts_input_open()
207 	struct da9052_tsi *tsi = input_get_drvdata(input_dev);  in da9052_ts_input_close()  local
209 	tsi->stopped = true;  in da9052_ts_input_close()
211 	da9052_disable_irq(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_input_close()
212 	cancel_delayed_work_sync(&tsi->ts_pen_work);  in da9052_ts_input_close()
214 	if (tsi->adc_on) {  in da9052_ts_input_close()
215 		da9052_disable_irq(tsi->da9052, DA9052_IRQ_TSIREADY);  in da9052_ts_input_close()
216 		da9052_ts_adc_toggle(tsi, false);  in da9052_ts_input_close()
223 		da9052_enable_irq(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_input_close()
227 	da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG, 1 << 1, 0);  in da9052_ts_input_close()
233 	struct da9052_tsi *tsi;  in da9052_ts_probe()  local
241 	tsi = kzalloc(sizeof(struct da9052_tsi), GFP_KERNEL);  in da9052_ts_probe()
243 	if (!tsi || !input_dev) {  in da9052_ts_probe()
248 	tsi->da9052 = da9052;  in da9052_ts_probe()
249 	tsi->dev = input_dev;  in da9052_ts_probe()
250 	tsi->stopped = true;  in da9052_ts_probe()
251 	INIT_DELAYED_WORK(&tsi->ts_pen_work, da9052_ts_pen_work);  in da9052_ts_probe()
269 	input_set_drvdata(input_dev, tsi);  in da9052_ts_probe()
272 	da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG, 1 << 1, 0);  in da9052_ts_probe()
275 	da9052_ts_adc_toggle(tsi, false);  in da9052_ts_probe()
277 	error = da9052_request_irq(tsi->da9052, DA9052_IRQ_PENDOWN,  in da9052_ts_probe()
278 				"pendown-irq", da9052_ts_pendwn_irq, tsi);  in da9052_ts_probe()
280 		dev_err(tsi->da9052->dev,  in da9052_ts_probe()
285 	error = da9052_request_irq(tsi->da9052, DA9052_IRQ_TSIREADY,  in da9052_ts_probe()
286 				"tsiready-irq", da9052_ts_datardy_irq, tsi);  in da9052_ts_probe()
288 		dev_err(tsi->da9052->dev,  in da9052_ts_probe()
294 	da9052_disable_irq(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_probe()
295 	da9052_disable_irq(tsi->da9052, DA9052_IRQ_TSIREADY);  in da9052_ts_probe()
297 	error = da9052_configure_tsi(tsi);  in da9052_ts_probe()
301 	error = input_register_device(tsi->dev);  in da9052_ts_probe()
305 	platform_set_drvdata(pdev, tsi);  in da9052_ts_probe()
310 	da9052_free_irq(tsi->da9052, DA9052_IRQ_TSIREADY, tsi);  in da9052_ts_probe()
312 	da9052_free_irq(tsi->da9052, DA9052_IRQ_PENDOWN, tsi);  in da9052_ts_probe()
314 	kfree(tsi);  in da9052_ts_probe()
322 	struct da9052_tsi *tsi = platform_get_drvdata(pdev);  in da9052_ts_remove()  local
324 	da9052_reg_write(tsi->da9052, DA9052_LDO9_REG, 0x19);  in da9052_ts_remove()
326 	da9052_free_irq(tsi->da9052, DA9052_IRQ_TSIREADY, tsi);  in da9052_ts_remove()
327 	da9052_free_irq(tsi->da9052, DA9052_IRQ_PENDOWN, tsi);  in da9052_ts_remove()
329 	input_unregister_device(tsi->dev);  in da9052_ts_remove()
330 	kfree(tsi);  in da9052_ts_remove()