build/patch/kernel/archive/sunxi-5.15/patches.megous/input-cyttsp4-Port-the-driver-to-use-device-properties.patch

From 49e2bdf6a2f46f96d76006c512d91064256c4709 Mon Sep 17 00:00:00 2001
From: Ondrej Jirman <megous@megous.com>
Date: Tue, 1 Oct 2019 00:31:06 +0200
Subject: [PATCH 176/478] input: cyttsp4: Port the driver to use device
 properties

The driver has several unimplemented features, that are nevertheless
expressed in its platform data. Drop this.

If needed, interested parties can implement them properly in the
future.

Signed-off-by: Ondrej Jirman <megous@megous.com>
---
 drivers/input/touchscreen/cyttsp4_core.c | 232 +++++++++++------------
 drivers/input/touchscreen/cyttsp4_core.h |  36 +++-
 include/linux/platform_data/cyttsp4.h    |  70 -------
 3 files changed, 149 insertions(+), 189 deletions(-)

diff --git a/drivers/input/touchscreen/cyttsp4_core.c b/drivers/input/touchscreen/cyttsp4_core.c
index 8f8be8256574..31a5c8724ee4 100644
--- a/drivers/input/touchscreen/cyttsp4_core.c
+++ b/drivers/input/touchscreen/cyttsp4_core.c
@@ -131,23 +131,20 @@ static int cyttsp4_hw_soft_reset(struct cyttsp4 *cd)
 	return 0;
 }
 
-static int cyttsp4_hw_hard_reset(struct cyttsp4 *cd)
-{
-	if (cd->pdata->xres) {
-		cd->pdata->xres(cd->pdata, cd->dev);
-		dev_dbg(cd->dev, "%s: execute HARD reset\n", __func__);
-		return 0;
-	}
-	dev_err(cd->dev, "%s: FAILED to execute HARD reset\n", __func__);
-	return -ENOSYS;
-}
-
 static int cyttsp4_hw_reset(struct cyttsp4 *cd)
 {
-	int rc = cyttsp4_hw_hard_reset(cd);
-	if (rc == -ENOSYS)
-		rc = cyttsp4_hw_soft_reset(cd);
-	return rc;
+	if (!cd->reset_gpio)
+		return cyttsp4_hw_soft_reset(cd);
+
+	gpiod_set_value_cansleep(cd->reset_gpio, 1);
+	msleep(20);
+
+	gpiod_set_value_cansleep(cd->reset_gpio, 0);
+	msleep(40);
+
+	gpiod_set_value_cansleep(cd->reset_gpio, 1);
+	msleep(20);
+	return 0;
 }
 
 /*
@@ -559,8 +556,8 @@ static int cyttsp4_si_get_btn_data(struct cyttsp4 *cd)
 
 		for (btn = 0; btn < si->si_ofs.num_btns; btn++) {
 			si->btn[btn].key_code = KEY_RESERVED;
-			if (btn < cd->pdata->n_keys)
-				si->btn[btn].key_code = cd->pdata->keys[btn].code;
+			if (btn < cd->n_keys)
+				si->btn[btn].key_code = cd->keys[btn].code;
 			si->btn[btn].state = CY_BTN_RELEASED;
 			si->btn[btn].enabled = true;
 		}
@@ -803,13 +800,13 @@ static void cyttsp4_get_touch(struct cyttsp4 *cd,
 			touch->abs[abs], touch->abs[abs]);
 	}
 
-	if (cd->pdata->flags & CY_FLAG_FLIP) {
+	if (cd->flags & CY_FLAG_FLIP) {
 		swap(touch->abs[CY_TCH_X], touch->abs[CY_TCH_Y]);
 		flipped = true;
 	} else
 		flipped = false;
 
-	if (cd->pdata->flags & CY_FLAG_INV_X) {
+	if (cd->flags & CY_FLAG_INV_X) {
 		if (flipped)
 			touch->abs[CY_TCH_X] = cd->si->si_ofs.max_y -
 				touch->abs[CY_TCH_X];
@@ -817,7 +814,7 @@ static void cyttsp4_get_touch(struct cyttsp4 *cd,
 			touch->abs[CY_TCH_X] = cd->si->si_ofs.max_x -
 				touch->abs[CY_TCH_X];
 	}
-	if (cd->pdata->flags & CY_FLAG_INV_Y) {
+	if (cd->flags & CY_FLAG_INV_Y) {
 		if (flipped)
 			touch->abs[CY_TCH_Y] = cd->si->si_ofs.max_x -
 				touch->abs[CY_TCH_Y];
@@ -828,8 +825,8 @@ static void cyttsp4_get_touch(struct cyttsp4 *cd,
 
 	dev_vdbg(dev, "%s: flip=%s inv-x=%s inv-y=%s x=%04X(%d) y=%04X(%d)\n",
 		__func__, flipped ? "true" : "false",
-		cd->pdata->flags & CY_FLAG_INV_X ? "true" : "false",
-		cd->pdata->flags & CY_FLAG_INV_Y ? "true" : "false",
+		cd->flags & CY_FLAG_INV_X ? "true" : "false",
+		cd->flags & CY_FLAG_INV_Y ? "true" : "false",
 		touch->abs[CY_TCH_X], touch->abs[CY_TCH_X],
 		touch->abs[CY_TCH_Y], touch->abs[CY_TCH_Y]);
 }
@@ -861,7 +858,7 @@ static void cyttsp4_get_mt_touches(struct cyttsp4 *cd, int num_cur_tch)
 		cyttsp4_get_touch(cd, &tch, si->xy_data +
 				  (i * si->si_ofs.tch_rec_size));
 
-		sig = &cd->pdata->signals[CY_ABS_ID_OST];
+		sig = &cd->signals[CY_ABS_ID_OST];
 		if (tch.abs[CY_TCH_T] < sig->min ||
 			tch.abs[CY_TCH_T] > sig->max) {
 			dev_err(dev, "%s: tch=%d -> bad trk_id=%d max_id=%d\n",
@@ -885,7 +882,7 @@ static void cyttsp4_get_mt_touches(struct cyttsp4 *cd, int num_cur_tch)
 
 		/* all devices: position and pressure fields */
 		for (j = 0; j <= CY_ABS_W_OST; j++) {
-			sig = &cd->pdata->signals[j];
+			sig = &cd->signals[j];
 			if (sig->signal >= 0)
 				input_report_abs(cd->input, sig->signal,
 						 tch.abs[CY_TCH_X + j]);
@@ -903,7 +900,7 @@ static void cyttsp4_get_mt_touches(struct cyttsp4 *cd, int num_cur_tch)
 
 			/* Get the extended touch fields */
 			for (j = 0; j < CY_NUM_EXT_TCH_FIELDS; j++) {
-				sig = &cd->pdata->signals[CY_ABS_MAJ_OST + j];
+				sig = &cd->signals[CY_ABS_MAJ_OST + j];
 				if (sig->signal >= 0)
 					input_report_abs(cd->input, sig->signal,
 							 tch.abs[CY_TCH_MAJ + j]);
@@ -1207,13 +1204,6 @@ static irqreturn_t cyttsp4_irq(int irq, void *handle)
 		dev_err(dev, "%s: Fail handshake mode=0x%02X r=%d\n",
 				__func__, mode[0], rc);
 
-	/*
-	 * a non-zero udelay period is required for using
-	 * IRQF_TRIGGER_LOW in order to delay until the
-	 * device completes isr deassert
-	 */
-	udelay(cd->pdata->level_irq_udelay);
-
 cyttsp4_irq_exit:
 	mutex_unlock(&cd->system_lock);
 	return IRQ_HANDLED;
@@ -1472,6 +1462,22 @@ static void cyttsp4_watchdog_work(struct work_struct *work)
 	return;
 }
 
+static int cyttsp4_set_power(struct cyttsp4* cd, int on)
+{
+	dev_dbg(cd->dev, "Power %s\n", on ? "up" : "down");
+
+	if (!cd->power_gpio)
+		return -ENOSYS;
+
+	//atomic_set(&cd->ignore_irq, 1);
+
+	//gpiod_set_value_cansleep(cd->power_gpio, on);
+
+	//atomic_set(&cd->ignore_irq, 0);
+
+	return -ENOSYS;
+}
+
 static int cyttsp4_core_sleep_(struct cyttsp4 *cd)
 {
 	enum cyttsp4_sleep_state ss = SS_SLEEP_ON;
@@ -1518,13 +1524,7 @@ static int cyttsp4_core_sleep_(struct cyttsp4 *cd)
 	}
 	dev_vdbg(cd->dev, "%s: write DEEP SLEEP succeeded\n", __func__);
 
-	if (cd->pdata->power) {
-		dev_dbg(cd->dev, "%s: Power down HW\n", __func__);
-		rc = cd->pdata->power(cd->pdata, 0, cd->dev, &cd->ignore_irq);
-	} else {
-		dev_dbg(cd->dev, "%s: No power function\n", __func__);
-		rc = 0;
-	}
+	rc = cyttsp4_set_power(cd, 0);
 	if (rc < 0) {
 		dev_err(cd->dev, "%s: HW Power down fails r=%d\n",
 				__func__, rc);
@@ -1758,13 +1758,7 @@ static int cyttsp4_core_wake_(struct cyttsp4 *cd)
 	cd->int_status |= CY_INT_AWAKE;
 	cd->sleep_state = SS_WAKING;
 
-	if (cd->pdata->power) {
-		dev_dbg(dev, "%s: Power up HW\n", __func__);
-		rc = cd->pdata->power(cd->pdata, 1, dev, &cd->ignore_irq);
-	} else {
-		dev_dbg(dev, "%s: No power function\n", __func__);
-		rc = -ENOSYS;
-	}
+	rc = cyttsp4_set_power(cd, 1);
 	if (rc < 0) {
 		if (rc != -ENOSYS)
 			dev_err(dev, "%s: HW Power up fails r=%d\n",
@@ -1892,7 +1886,7 @@ static int cyttsp4_setup_input_device(struct cyttsp4 *cd)
 	max_y_tmp = cd->si->si_ofs.max_y;
 
 	/* get maximum values from the sysinfo data */
-	if (cd->pdata->flags & CY_FLAG_FLIP) {
+	if (cd->flags & CY_FLAG_FLIP) {
 		max_x = max_y_tmp - 1;
 		max_y = max_x_tmp - 1;
 	} else {
@@ -1902,8 +1896,8 @@ static int cyttsp4_setup_input_device(struct cyttsp4 *cd)
 	max_p = cd->si->si_ofs.max_p;
 
 	/* set event signal capabilities */
-	for (i = 0; i < cd->pdata->n_signals; i++) {
-		signal = &cd->pdata->signals[i];
+	for (i = 0; i < cd->n_signals; i++) {
+		signal = &cd->signals[i];
 
 		__set_bit(signal->signal, cd->input->absbit);
 
@@ -1954,7 +1948,7 @@ static int cyttsp4_mt_probe(struct cyttsp4 *cd)
 		goto error_alloc_failed;
 	}
 
-	cd->input->name = cd->pdata->inp_dev_name;
+	cd->input->name = "mt_ctp";
 	scnprintf(cd->phys, sizeof(cd->phys)-1, "%s", dev_name(dev));
 	cd->input->phys = cd->phys;
 	cd->input->id.bustype = cd->bus_ops->bustype;
@@ -1979,38 +1973,77 @@ static int cyttsp4_mt_probe(struct cyttsp4 *cd)
 	return rc;
 }
 
+static struct cyttsp4_signal_def cyttsp4_default_signals[CY_NUM_ABS_OST] = {
+	[CY_ABS_X_OST]   = { ABS_MT_POSITION_X, 0, 758, },
+	[CY_ABS_Y_OST]   = { ABS_MT_POSITION_Y, 0, 1024, },
+	[CY_ABS_P_OST]   = { ABS_MT_PRESSURE, 0, 255, },
+	[CY_ABS_W_OST]   = { -1 },
+	[CY_ABS_ID_OST]  = { ABS_MT_TRACKING_ID, 0, 15, },
+	[CY_ABS_MAJ_OST] = { ABS_MT_TOUCH_MAJOR, 0, 255, },
+	[CY_ABS_MIN_OST] = { ABS_MT_TOUCH_MINOR, 0, 255, },
+	[CY_ABS_OR_OST]  = { ABS_MT_ORIENTATION, -127, 127, },
+};
+
 struct cyttsp4 *cyttsp4_probe(const struct cyttsp4_bus_ops *ops,
 		struct device *dev, u16 irq, size_t xfer_buf_size)
 {
 	struct cyttsp4 *cd;
-	struct cyttsp4_platform_data *pdata = dev_get_platdata(dev);
-	unsigned long irq_flags;
 	int rc = 0;
 
-	if (!pdata) {
-		dev_err(dev, "%s: Missing platform data\n", __func__);
-		rc = -ENODEV;
-		goto error_no_pdata;
-	}
-
-	cd = kzalloc(sizeof(*cd), GFP_KERNEL);
+	cd = devm_kzalloc(dev, sizeof(*cd), GFP_KERNEL);
 	if (!cd) {
 		dev_err(dev, "%s: Error, kzalloc\n", __func__);
-		rc = -ENOMEM;
-		goto error_alloc_data;
+		return ERR_PTR(-ENOMEM);
 	}
 
-	cd->xfer_buf = kzalloc(xfer_buf_size, GFP_KERNEL);
+	cd->signals = cyttsp4_default_signals;
+	cd->n_signals = ARRAY_SIZE(cyttsp4_default_signals);
+
+	if (device_property_read_bool(dev, "flip"))
+		cd->flags |= CY_FLAG_FLIP;
+	if (device_property_read_bool(dev, "invert-x"))
+		cd->flags |= CY_FLAG_INV_X;
+	if (device_property_read_bool(dev, "invert-y"))
+		cd->flags |= CY_FLAG_INV_Y;
+
+	cd->vdd_supply = devm_regulator_get(dev, "vdd");
+	if (IS_ERR(cd->vdd_supply)) {
+		rc = PTR_ERR(cd->vdd_supply);
+		dev_err(dev, "can't get vdd power (%d)\n", rc);
+		return ERR_PTR(rc);
+	}
+
+	rc = regulator_enable(cd->vdd_supply);
+	if (rc) {
+		dev_err(dev, "can't enable vdd power (%d)\n", rc);
+		return ERR_PTR(rc);
+	}
+
+	cd->power_gpio = devm_gpiod_get(dev, "power", GPIOD_OUT_HIGH);
+	if (IS_ERR(cd->reset_gpio)) {
+		rc = PTR_ERR(cd->reset_gpio);
+		dev_err(dev, "can't get reset gpio (%d)\n", rc);
+		return ERR_PTR(rc);
+	}
+
+	cd->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
+	if (IS_ERR(cd->reset_gpio)) {
+		rc = PTR_ERR(cd->reset_gpio);
+		dev_err(dev, "can't get reset gpio (%d)\n", rc);
+		return ERR_PTR(rc);
+	}
+
+	cd->xfer_buf = devm_kzalloc(dev, xfer_buf_size, GFP_KERNEL);
 	if (!cd->xfer_buf) {
 		dev_err(dev, "%s: Error, kzalloc\n", __func__);
 		rc = -ENOMEM;
-		goto error_free_cd;
+		goto error_disable_vdd;
 	}
 
 	/* Initialize device info */
 	cd->dev = dev;
-	cd->pdata = pdata;
 	cd->bus_ops = ops;
+	dev_set_drvdata(dev, cd);
 
 	/* Initialize mutexes and spinlocks */
 	mutex_init(&cd->system_lock);
@@ -2024,43 +2057,20 @@ struct cyttsp4 *cyttsp4_probe(const struct cyttsp4_bus_ops *ops,
 	INIT_WORK(&cd->watchdog_work, cyttsp4_watchdog_work);
 
 	/* Initialize IRQ */
-	cd->irq = gpio_to_irq(cd->pdata->irq_gpio);
-	if (cd->irq < 0) {
-		rc = -EINVAL;
-		goto error_free_xfer;
-	}
-
-	dev_set_drvdata(dev, cd);
-
-	/* Call platform init function */
-	if (cd->pdata->init) {
-		dev_dbg(cd->dev, "%s: Init HW\n", __func__);
-		rc = cd->pdata->init(cd->pdata, 1, cd->dev);
-	} else {
-		dev_dbg(cd->dev, "%s: No HW INIT function\n", __func__);
-		rc = 0;
-	}
-	if (rc < 0)
-		dev_err(cd->dev, "%s: HW Init fail r=%d\n", __func__, rc);
-
-	dev_dbg(dev, "%s: initialize threaded irq=%d\n", __func__, cd->irq);
-	if (cd->pdata->level_irq_udelay > 0)
-		/* use level triggered interrupts */
-		irq_flags = IRQF_TRIGGER_LOW | IRQF_ONESHOT;
-	else
-		/* use edge triggered interrupts */
-		irq_flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
-
-	rc = request_threaded_irq(cd->irq, NULL, cyttsp4_irq, irq_flags,
-		dev_name(dev), cd);
-	if (rc < 0) {
-		dev_err(dev, "%s: Error, could not request irq\n", __func__);
-		goto error_request_irq;
+	rc = devm_request_threaded_irq(dev, cd->irq, NULL, cyttsp4_irq,
+				       IRQF_ONESHOT | IRQF_TRIGGER_FALLING,
+				       dev_name(dev), cd);
+	if (rc) {
+		dev_err(cd->dev, "failed to request IRQ %d, err: %d\n",
+			cd->irq, rc);
+		goto error_disable_vdd;
 	}
 
 	/* Setup watchdog timer */
 	timer_setup(&cd->watchdog_timer, cyttsp4_watchdog_timer, 0);
 
+	//XXX: msleep(300);
+
 	/*
 	 * call startup directly to ensure that the device
 	 * is tested before leaving the probe
@@ -2068,17 +2078,15 @@ struct cyttsp4 *cyttsp4_probe(const struct cyttsp4_bus_ops *ops,
 	rc = cyttsp4_startup(cd);
 
 	/* Do not fail probe if startup fails but the device is detected */
-	if (rc < 0 && cd->mode == CY_MODE_UNKNOWN) {
-		dev_err(cd->dev, "%s: Fail initial startup r=%d\n",
+	if (rc && cd->mode == CY_MODE_UNKNOWN) {
+		dev_err(cd->dev, "%s: Fail initial startup rc=%d\n",
 			__func__, rc);
 		goto error_startup;
 	}
 
 	rc = cyttsp4_mt_probe(cd);
-	if (rc < 0) {
-		dev_err(dev, "%s: Error, fail mt probe\n", __func__);
+	if (rc)
 		goto error_startup;
-	}
 
 	pm_runtime_enable(dev);
 
@@ -2089,17 +2097,10 @@ struct cyttsp4 *cyttsp4_probe(const struct cyttsp4_bus_ops *ops,
 	cyttsp4_stop_wd_timer(cd);
 	pm_runtime_disable(dev);
 	cyttsp4_free_si_ptrs(cd);
-	free_irq(cd->irq, cd);
-error_request_irq:
-	if (cd->pdata->init)
-		cd->pdata->init(cd->pdata, 0, dev);
-error_free_xfer:
-	kfree(cd->xfer_buf);
-error_free_cd:
-	kfree(cd);
-error_alloc_data:
-error_no_pdata:
-	dev_err(dev, "%s failed.\n", __func__);
+error_disable_vdd:
+	gpiod_set_value_cansleep(cd->reset_gpio, 1);
+	gpiod_set_value_cansleep(cd->power_gpio, 0);
+	regulator_disable(cd->vdd_supply);
 	return ERR_PTR(rc);
 }
 EXPORT_SYMBOL_GPL(cyttsp4_probe);
@@ -2124,14 +2125,8 @@ int cyttsp4_remove(struct cyttsp4 *cd)
 	pm_runtime_disable(dev);
 
 	cancel_work_sync(&cd->startup_work);
-
 	cyttsp4_stop_wd_timer(cd);
-
-	free_irq(cd->irq, cd);
-	if (cd->pdata->init)
-		cd->pdata->init(cd->pdata, 0, dev);
 	cyttsp4_free_si_ptrs(cd);
-	kfree(cd);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(cyttsp4_remove);
@@ -2139,3 +2134,4 @@ EXPORT_SYMBOL_GPL(cyttsp4_remove);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Cypress TrueTouch(R) Standard touchscreen core driver");
 MODULE_AUTHOR("Cypress");
+MODULE_AUTHOR("Ondrej Jirman <megous@megous.com>");
diff --git a/drivers/input/touchscreen/cyttsp4_core.h b/drivers/input/touchscreen/cyttsp4_core.h
index 995bfd0a54d0..cff547979b28 100644
--- a/drivers/input/touchscreen/cyttsp4_core.h
+++ b/drivers/input/touchscreen/cyttsp4_core.h
@@ -24,6 +24,8 @@
 #include <linux/stringify.h>
 #include <linux/types.h>
 #include <linux/platform_data/cyttsp4.h>
+#include <linux/regulator/consumer.h>
+#include <linux/gpio.h>
 
 #define CY_REG_BASE			0x00
 
@@ -329,12 +331,19 @@ struct cyttsp4 {
 	bool is_suspended;
 	char phys[NAME_MAX];
 	int num_prv_tch;
-	struct cyttsp4_platform_data *pdata;
 	const struct cyttsp4_bus_ops *bus_ops;
 	u8 *xfer_buf;
 #ifdef VERBOSE_DEBUG
 	u8 pr_buf[CY_MAX_PRBUF_SIZE];
 #endif
+	int flags;
+	int n_signals;
+	struct cyttsp4_signal_def *signals;
+	int n_keys;
+	struct cyttsp4_virtual_key* keys;
+	struct gpio_desc *reset_gpio;
+	struct gpio_desc *power_gpio;
+	struct regulator *vdd_supply;
 };
 
 struct cyttsp4_bus_ops {
@@ -392,6 +401,31 @@ enum cyttsp4_event_id {
 /* y-axis, 0:origin is on top side of panel, 1: bottom */
 #define CY_PCFG_ORIGIN_Y_MASK		0x80
 
+/* abs axis signal offsets in the signals array  */
+enum cyttsp4_sig_ost {
+	CY_ABS_X_OST,
+	CY_ABS_Y_OST,
+	CY_ABS_P_OST,
+	CY_ABS_W_OST,
+	CY_ABS_ID_OST,
+	CY_ABS_MAJ_OST,
+	CY_ABS_MIN_OST,
+	CY_ABS_OR_OST,
+	CY_NUM_ABS_OST	/* number of abs signals */
+};
+
+struct cyttsp4_virtual_key {
+	int code;
+};
+
+struct cyttsp4_signal_def {
+	int signal;
+	int min;
+	int max;
+	int fuzz;
+	int flat;
+};
+
 static inline int cyttsp4_adap_read(struct cyttsp4 *ts, u16 addr, int size,
 		void *buf)
 {
diff --git a/include/linux/platform_data/cyttsp4.h b/include/linux/platform_data/cyttsp4.h
index e718d2204ce7..e69de29bb2d1 100644
--- a/include/linux/platform_data/cyttsp4.h
+++ b/include/linux/platform_data/cyttsp4.h
@@ -1,70 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Header file for:
- * Cypress TrueTouch(TM) Standard Product (TTSP) touchscreen drivers.
- * For use with Cypress Txx3xx parts.
- * Supported parts include:
- * CY8CTST341
- * CY8CTMA340
- *
- * Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc.
- * Copyright (C) 2012 Javier Martinez Canillas <javier@dowhile0.org>
- *
- * Contact Cypress Semiconductor at www.cypress.com (kev@cypress.com)
- */
-#ifndef _CYTTSP4_H_
-#define _CYTTSP4_H_
-
-#define CYTTSP4_MT_NAME "cyttsp4_mt"
-
-#define CY_TOUCH_SETTINGS_MAX 32
-
-/* abs axis signal offsets in the signals array  */
-enum cyttsp4_sig_ost {
-	CY_ABS_X_OST,
-	CY_ABS_Y_OST,
-	CY_ABS_P_OST,
-	CY_ABS_W_OST,
-	CY_ABS_ID_OST,
-	CY_ABS_MAJ_OST,
-	CY_ABS_MIN_OST,
-	CY_ABS_OR_OST,
-	CY_NUM_ABS_OST	/* number of abs signals */
-};
-
-struct cyttsp4_virtual_key {
-	int code;
-};
-
-struct cyttsp4_signal_def {
-	int signal;
-	int min;
-	int max;
-	int fuzz;
-	int flat;
-};
-
-struct cyttsp4_platform_data {
-	char const *inp_dev_name;
-	unsigned short flags;
-
-	int irq_gpio;
-	int rst_gpio;
-	int level_irq_udelay;
-	int (*xres)(struct cyttsp4_platform_data *pdata,
-		struct device *dev);
-	int (*init)(struct cyttsp4_platform_data *pdata,
-		int on, struct device *dev);
-	int (*power)(struct cyttsp4_platform_data *pdata,
-		int on, struct device *dev, atomic_t *ignore_irq);
-	int (*irq_stat)(struct cyttsp4_platform_data *pdata,
-		struct device *dev);
-
-	int n_signals;
-	struct cyttsp4_signal_def *signals;
-
-	int n_keys;
-	struct cyttsp4_virtual_key* keys;
-};
-
-#endif /* _CYTTSP4_H_ */
-- 
2.35.3