1 // SPDX-License-Identifier: GPL-2.0-or-later
30 	da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG, 1 << 0, on);  in da9052_ts_adc_toggle()
31 	tsi->adc_on = on;  in da9052_ts_adc_toggle()
38 	if (!tsi->stopped) {  in da9052_ts_pendwn_irq()
39 		/* Mask PEN_DOWN event and unmask TSI_READY event */  in da9052_ts_pendwn_irq()
40 		da9052_disable_irq_nosync(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_pendwn_irq()
41 		da9052_enable_irq(tsi->da9052, DA9052_IRQ_TSIREADY);  in da9052_ts_pendwn_irq()
45 		schedule_delayed_work(&tsi->ts_pen_work, HZ / 50);  in da9052_ts_pendwn_irq()
53 	struct input_dev *input = tsi->dev;  in da9052_ts_read()
58 	ret = da9052_reg_read(tsi->da9052, DA9052_TSI_X_MSB_REG);  in da9052_ts_read()
64 	ret = da9052_reg_read(tsi->da9052, DA9052_TSI_Y_MSB_REG);  in da9052_ts_read()
70 	ret = da9052_reg_read(tsi->da9052, DA9052_TSI_Z_MSB_REG);  in da9052_ts_read()
76 	ret = da9052_reg_read(tsi->da9052, DA9052_TSI_LSB_REG);  in da9052_ts_read()
106 	if (!tsi->stopped) {  in da9052_ts_pen_work()
107 		int ret = da9052_reg_read(tsi->da9052, DA9052_TSI_LSB_REG);  in da9052_ts_pen_work()
110 			schedule_delayed_work(&tsi->ts_pen_work, HZ / 50);  in da9052_ts_pen_work()
112 			struct input_dev *input = tsi->dev;  in da9052_ts_pen_work()
117 			/* Report Pen UP */  in da9052_ts_pen_work()
126 			ret = da9052_reg_update(tsi->da9052,  in da9052_ts_pen_work()
131 			/* Mask TSI_READY event and unmask PEN_DOWN event */  in da9052_ts_pen_work()
132 			da9052_disable_irq(tsi->da9052, DA9052_IRQ_TSIREADY);  in da9052_ts_pen_work()
133 			da9052_enable_irq(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_pen_work()
161 	error = da9052_ts_configure_gpio(tsi->da9052);  in da9052_configure_tsi()
166 	error = da9052_reg_update(tsi->da9052, DA9052_ADC_CONT_REG,  in da9052_configure_tsi()
172 	error = da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG, 0xFC, 0xC0);  in da9052_configure_tsi()
177 	error = da9052_reg_write(tsi->da9052, DA9052_LDO9_REG, 0x59);  in da9052_configure_tsi()
188 	tsi->stopped = false;  in da9052_ts_input_open()
192 	da9052_enable_irq(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_input_open()
195 	return da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG,  in da9052_ts_input_open()
203 	tsi->stopped = true;  in da9052_ts_input_close()
205 	da9052_disable_irq(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_input_close()
206 	cancel_delayed_work_sync(&tsi->ts_pen_work);  in da9052_ts_input_close()
208 	if (tsi->adc_on) {  in da9052_ts_input_close()
209 		da9052_disable_irq(tsi->da9052, DA9052_IRQ_TSIREADY);  in da9052_ts_input_close()
214 		 * twice and we need to enable it to keep enable/disable  in da9052_ts_input_close()
217 		da9052_enable_irq(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_input_close()
220 	/* Disable Pen Detect Circuit */  in da9052_ts_input_close()
221 	da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG, 1 << 1, 0);  in da9052_ts_input_close()
231 	da9052 = dev_get_drvdata(pdev->dev.parent);  in da9052_ts_probe()
233 		return -EINVAL;  in da9052_ts_probe()
238 		error = -ENOMEM;  in da9052_ts_probe()
242 	tsi->da9052 = da9052;  in da9052_ts_probe()
243 	tsi->dev = input_dev;  in da9052_ts_probe()
244 	tsi->stopped = true;  in da9052_ts_probe()
245 	INIT_DELAYED_WORK(&tsi->ts_pen_work, da9052_ts_pen_work);  in da9052_ts_probe()
247 	input_dev->id.version = 0x0101;  in da9052_ts_probe()
248 	input_dev->id.vendor = 0x15B6;  in da9052_ts_probe()
249 	input_dev->id.product = 0x9052;  in da9052_ts_probe()
250 	input_dev->name = "Dialog DA9052 TouchScreen Driver";  in da9052_ts_probe()
251 	input_dev->dev.parent = &pdev->dev;  in da9052_ts_probe()
252 	input_dev->open = da9052_ts_input_open;  in da9052_ts_probe()
253 	input_dev->close = da9052_ts_input_close;  in da9052_ts_probe()
255 	__set_bit(EV_ABS, input_dev->evbit);  in da9052_ts_probe()
256 	__set_bit(EV_KEY, input_dev->evbit);  in da9052_ts_probe()
257 	__set_bit(BTN_TOUCH, input_dev->keybit);  in da9052_ts_probe()
265 	/* Disable Pen Detect Circuit */  in da9052_ts_probe()
266 	da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG, 1 << 1, 0);  in da9052_ts_probe()
268 	/* Disable ADC */  in da9052_ts_probe()
271 	error = da9052_request_irq(tsi->da9052, DA9052_IRQ_PENDOWN,  in da9052_ts_probe()
272 				"pendown-irq", da9052_ts_pendwn_irq, tsi);  in da9052_ts_probe()
274 		dev_err(tsi->da9052->dev,  in da9052_ts_probe()
279 	error = da9052_request_irq(tsi->da9052, DA9052_IRQ_TSIREADY,  in da9052_ts_probe()
280 				"tsiready-irq", da9052_ts_datardy_irq, tsi);  in da9052_ts_probe()
282 		dev_err(tsi->da9052->dev,  in da9052_ts_probe()
287 	/* Mask PEN_DOWN and TSI_READY events */  in da9052_ts_probe()
288 	da9052_disable_irq(tsi->da9052, DA9052_IRQ_PENDOWN);  in da9052_ts_probe()
289 	da9052_disable_irq(tsi->da9052, DA9052_IRQ_TSIREADY);  in da9052_ts_probe()
295 	error = input_register_device(tsi->dev);  in da9052_ts_probe()
304 	da9052_free_irq(tsi->da9052, DA9052_IRQ_TSIREADY, tsi);  in da9052_ts_probe()
306 	da9052_free_irq(tsi->da9052, DA9052_IRQ_PENDOWN, tsi);  in da9052_ts_probe()
318 	da9052_reg_write(tsi->da9052, DA9052_LDO9_REG, 0x19);  in da9052_ts_remove()
320 	da9052_free_irq(tsi->da9052, DA9052_IRQ_TSIREADY, tsi);  in da9052_ts_remove()
321 	da9052_free_irq(tsi->da9052, DA9052_IRQ_PENDOWN, tsi);  in da9052_ts_remove()
323 	input_unregister_device(tsi->dev);  in da9052_ts_remove()
331 		.name	= "da9052-tsi",
340 MODULE_ALIAS("platform:da9052-tsi");