input: ft5x06_ts: Parse board specific parameters from pdata

To support all models supported by focaltech push necessary
parameters to platform data.

This patch is propagated from msm-3.18 kernel
'commit 473f8cd84f93 ("input: ft5x06_ts: Parse board specific
parameters from pdata")'

Also fix the below checkpatch warnings on 3.18 Kernel.
WARNING: Possible unnecessary 'out of memory' message
+       if (!data) {
+               dev_err(&client->dev, "Not enough memory\n");

WARNING: Possible unnecessary 'out of memory' message
+       if (!data->ts_info) {
+               dev_err(&client->dev, "Not enough memory\n");

Change-Id: I00b0e8ba7cfc8d8fbd48aa910bd3d0010283ed00
Signed-off-by: Mohan Pallaka <mpallaka@codeaurora.org>
Signed-off-by: Sudhakar Manapati <smanap@codeaurora.org>

Documentation/devicetree/bindings/input/touchscreen/ft5x06-ts.txt

@@ -22,7 +22,11 @@ Required properties:
  - focaltech,reset-gpio	: reset gpio to control the reset of chip.
  - focaltech,display-coords : display coordinates in pixels. It is a four
 				tuple consisting of min x, min y, max x and
-				max y values.
+				max y values
+ - focaltech,name	: name of the controller
+ - focaltech,group-id	: group id of this device
+ - focaltech,hard-reset-delay-ms : hard reset delay in ms
+ - focaltech,soft-reset-delay-ms : soft reset delay in ms
 
 Optional properties:
 
@@ -32,22 +36,44 @@ Optional properties:
  - focaltech,i2c-pull-up : to specify pull up is required.
  - focaltech,no-force-update : to specify force update is allowed.
  - focaltech,button-map : button map of key codes. The number
-				of key codes depend on panel.
-
+				of key codes depend on panel
+ - focaltech,fw-name	: specify the firmware file name
+ - focaltech,fw-delay-aa-ms : specify the "aa" delay in ms for firmware upgrade
+ - focaltech,fw-delay-55-ms : specify the "55" delay in ms for firmware upgrade
+ - focaltech,fw-upgrade-id1 : specify the upgrade id1 for firmware upgrade
+ - focaltech,fw-upgrade-id2 : specify the upgrade id2 for firmware upgrade
+ - focaltech,fw-delay-readid-ms : specify the read id delay in ms for firmware upgrade
+ - focaltech,fw-delay-era-flsh-ms : specify the erase flash delay in ms for firmware upgrade
+ - focaltech,fw-auto-cal	: specify whether calibration is needed after firmware upgrade
 Example:
-	i2c@f9924000 {
-		ft5x06_ts@38 {
+	i2c@f9923000{
+		focaltech@38{
 			compatible = "focaltech,5x06";
 			reg = <0x38>;
 			interrupt-parent = <&msmgpio>;
-			interrupts = <61 0x2>;
-			vdd-supply = <&pm8941_l22>;
-			vcc_i2c-supply = <&pm8941_s3>;
-			focaltech,reset-gpio = <&msmgpio 60 0x00>;
-			focaltech,irq-gpio = <&msmgpio 61 0x00>;
-			focaltech,panel-coords = <0 0 480 800>;
+			interrupts = <1 0x2>;
+			vdd-supply = <&pm8110_l19>;
+			vcc_i2c-supply = <&pm8110_l14>;
+			focaltech,name = "ft6x06";
+			focaltech,family-id = <0x06>;
+			focaltech,reset-gpio = <&msmgpio 0 0x00>;
+			focaltech,irq-gpio = <&msmgpio 1 0x00>;
 			focaltech,display-coords = <0 0 480 800>;
-			focaltech,button-map= <158 102 139 217>;
-			focaltech,family-id = <0x0a>;
+			focaltech,panel-coords = <0 0 480 800>;
+			focaltech,button-map= <139 102 158>;
+			focaltech,no-force-update;
+			focaltech,i2c-pull-up;
+			focaltech,group-id = <1>;
+			focaltech,hard-reset-delay = <20>;
+			focaltech,soft-reset-delay = <150>;
+			focaltech,num-max-touches = <2>;
+			focaltech,fw-name = "ft_8610_qrd_fw.bin";
+			focaltech,fw-delay-aa-ms = <100>;
+			focaltech,fw-delay-55-ms = <30>;
+			focaltech,fw-upgrade-id1 = <0x79>;
+			focaltech,fw-upgrade-id2 = <0x08>;
+			focaltech,fw-delay-readid-ms = <10>;
+			focaltech,fw-delay-era-flsh-ms = <2000>;
+			focaltech,fw-auto-cal;
 		};
 	};

drivers/input/touchscreen/ft5x06_ts.c

@@ -41,22 +41,23 @@
 #define FT_SUSPEND_LEVEL 1
 #endif
 
-#define CFG_MAX_TOUCH_POINTS	5
+#define FT_DRIVER_VERSION	0x01
 
-#define FT_STARTUP_DLY		150
-#define FT_RESET_DLY		20
+#define FT_META_REGS		3
+#define FT_ONE_TCH_LEN		6
+#define FT_TCH_LEN(x)		(FT_META_REGS + FT_ONE_TCH_LEN * x)
 
 #define FT_PRESS		0x7F
 #define FT_MAX_ID		0x0F
-#define FT_TOUCH_STEP		6
 #define FT_TOUCH_X_H_POS	3
 #define FT_TOUCH_X_L_POS	4
 #define FT_TOUCH_Y_H_POS	5
 #define FT_TOUCH_Y_L_POS	6
+#define FT_TD_STATUS		2
 #define FT_TOUCH_EVENT_POS	3
 #define FT_TOUCH_ID_POS		5
-
-#define POINT_READ_BUF	(3 + FT_TOUCH_STEP * CFG_MAX_TOUCH_POINTS)
+#define FT_TOUCH_DOWN		0
+#define FT_TOUCH_CONTACT	2
 
 /* register address*/
 #define FT_REG_DEV_MODE		0x00
@@ -104,55 +105,6 @@
 #define FT_UPGRADE_AA		0xAA
 #define FT_UPGRADE_55		0x55
 
-/* upgrade config of FT5606 */
-#define FT5606_UPGRADE_AA_DELAY		50
-#define FT5606_UPGRADE_55_DELAY		10
-#define FT5606_UPGRADE_ID_1		0x79
-#define FT5606_UPGRADE_ID_2		0x06
-#define FT5606_UPGRADE_READID_DELAY	100
-#define FT5606_UPGRADE_EARSE_DELAY	2000
-
-/* upgrade config of FT5316 */
-#define FT5316_UPGRADE_AA_DELAY		50
-#define FT5316_UPGRADE_55_DELAY		30
-#define FT5316_UPGRADE_ID_1		0x79
-#define FT5316_UPGRADE_ID_2		0x07
-#define FT5316_UPGRADE_READID_DELAY	1
-#define FT5316_UPGRADE_EARSE_DELAY	1500
-
-/* upgrade config of FT5x06(x=2,3,4) */
-#define FT5X06_UPGRADE_AA_DELAY		50
-#define FT5X06_UPGRADE_55_DELAY		30
-#define FT5X06_UPGRADE_ID_1		0x79
-#define FT5X06_UPGRADE_ID_2		0x03
-#define FT5X06_UPGRADE_READID_DELAY	1
-#define FT5X06_UPGRADE_EARSE_DELAY	2000
-
-/* upgrade config of FT6208 */
-#define FT6208_UPGRADE_AA_DELAY		60
-#define FT6208_UPGRADE_55_DELAY		10
-#define FT6208_UPGRADE_ID_1		0x79
-#define FT6208_UPGRADE_ID_2		0x05
-#define FT6208_UPGRADE_READID_DELAY	10
-#define FT6208_UPGRADE_EARSE_DELAY	2000
-
-/*upgrade config of FT6x06*/
-#define FT6X06_UPGRADE_AA_DELAY		100
-#define FT6X06_UPGRADE_55_DELAY		30
-#define FT6X06_UPGRADE_ID_1		0x79
-#define FT6X06_UPGRADE_ID_2		0x08
-#define FT6X06_UPGRADE_READID_DELAY	10
-#define FT6X06_UPGRADE_EARSE_DELAY	2000
-
-#define FT_UPGRADE_INFO(x, y)	do { \
-		x->delay_55 = y##_UPGRADE_55_DELAY; \
-		x->delay_aa = y##_UPGRADE_AA_DELAY; \
-		x->upgrade_id_1 = y##_UPGRADE_ID_1; \
-		x->upgrade_id_2 = y##_UPGRADE_ID_2; \
-		x->delay_readid = y##_UPGRADE_READID_DELAY; \
-		x->delay_earse_flash = y##_UPGRADE_EARSE_DELAY; \
-		} while (0)
-
 #define FT_FW_MIN_SIZE		8
 #define FT_FW_MAX_SIZE		32768
 #define FT_FW_FILE_VER(x)	((x)->data[(x)->size - 2])
@@ -180,39 +132,26 @@
 #define FT_REG_CAL		0x00
 #define FT_CAL_MASK		0x70
 
-#define FT_INFO_MAX_LEN		200
+#define FT_INFO_MAX_LEN		512
 
-#define FT_STORE_TS_INFO(buf, id, fw_ver) \
+#define FT_STORE_TS_INFO(buf, id, name, max_tch, group_id, fw_name, fw_ver) \
 			snprintf(buf, FT_INFO_MAX_LEN, \
 				"controller\t= focaltech\n" \
 				"model\t\t= 0x%x\n" \
-				"fw_ver\t\t= 0x%x\n", id, fw_ver)
+				"name\t\t= %s\n" \
+				"max_touches\t= %d\n" \
+				"drv_ver\t\t= 0x%x\n" \
+				"group_id\t= 0x%x\n" \
+				"fw_name\t\t= %s\n" \
+				"fw_ver\t\t= 0x%x\n", id, name, \
+				max_tch, FT_DRIVER_VERSION, group_id, \
+				fw_name, fw_ver)
 
 #define FT_DEBUG_DIR_NAME	"ts_debug"
 
-struct ts_event {
-	u16 x[CFG_MAX_TOUCH_POINTS];	/* x coordinate */
-	u16 y[CFG_MAX_TOUCH_POINTS];	/* y coordinate */
-	/* touch event: 0 -- down; 1-- contact; 2 -- contact */
-	u8 touch_event[CFG_MAX_TOUCH_POINTS];
-	u8 finger_id[CFG_MAX_TOUCH_POINTS];	/* touch ID */
-	u16 pressure;
-	u8 touch_point;
-};
-
-struct upgrade_info {
-	u16 delay_aa;		/* delay of write FT_UPGRADE_AA */
-	u16 delay_55;		/* delay of write FT_UPGRADE_55 */
-	u8 upgrade_id_1;	/* upgrade id 1 */
-	u8 upgrade_id_2;	/* upgrade id 2 */
-	u16 delay_readid;	/* delay of read id */
-	u16 delay_earse_flash;	/* delay of earse flash */
-};
-
 struct ft5x06_ts_data {
 	struct i2c_client *client;
 	struct input_dev *input_dev;
-	struct ts_event event;
 	const struct ft5x06_ts_platform_data *pdata;
 	struct regulator *vdd;
 	struct regulator *vcc_i2c;
@@ -223,6 +162,8 @@ struct ft5x06_ts_data {
 	u16 addr;
 	bool suspended;
 	char *ts_info;
+	u8 *tch_data;
+	u32 tch_data_len;
 #if defined(CONFIG_FB)
 	struct notifier_block fb_notif;
 #elif defined(CONFIG_HAS_EARLYSUSPEND)
@@ -305,89 +246,65 @@ static int ft5x0x_read_reg(struct i2c_client *client, u8 addr, u8 *val)
 	return ft5x06_i2c_read(client, &addr, 1, val, 1);
 }
 
-static void ft5x06_report_value(struct ft5x06_ts_data *data)
-{
-	struct ts_event *event = &data->event;
-	int i;
-	int fingerdown = 0;
-
-	for (i = 0; i < event->touch_point; i++) {
-		if (event->touch_event[i] == 0 || event->touch_event[i] == 2) {
-			event->pressure = FT_PRESS;
-			fingerdown++;
-		} else {
-			event->pressure = 0;
-		}
-
-		input_mt_slot(data->input_dev, event->finger_id[i]);
-		input_mt_report_slot_state(data->input_dev, MT_TOOL_FINGER,
-					!!event->pressure);
-
-		if (event->pressure == FT_PRESS) {
-			input_report_abs(data->input_dev, ABS_MT_POSITION_X,
-					 event->x[i]);
-			input_report_abs(data->input_dev, ABS_MT_POSITION_Y,
-					 event->y[i]);
-			input_report_abs(data->input_dev, ABS_MT_TOUCH_MAJOR,
-					 event->pressure);
-		}
-	}
-
-	input_report_key(data->input_dev, BTN_TOUCH, !!fingerdown);
-	input_sync(data->input_dev);
-}
-
-static int ft5x06_handle_touchdata(struct ft5x06_ts_data *data)
-{
-	struct ts_event *event = &data->event;
-	int num_points;
-	int ret, i;
-	u8 buf[POINT_READ_BUF] = { 0 };
-	u8 pointid = FT_MAX_ID;
-
-	ret = ft5x06_i2c_read(data->client, buf, 1, buf, POINT_READ_BUF);
-	if (ret < 0) {
-		dev_err(&data->client->dev, "%s read touchdata failed.\n",
-			__func__);
-		return ret;
-	}
-	memset(event, 0, sizeof(struct ts_event));
-
-	event->touch_point = 0;
-	num_points = buf[2] & FT_STATUS_NUM_TP_MASK;
-
-	for (i = 0; i < num_points; i++) {
-		pointid = (buf[FT_TOUCH_ID_POS + FT_TOUCH_STEP * i]) >> 4;
-		if (pointid >= FT_MAX_ID)
-			break;
-
-		event->touch_point++;
-
-		event->x[i] =
-		    (s16) (buf[FT_TOUCH_X_H_POS + FT_TOUCH_STEP * i] & 0x0F) <<
-		    8 | (s16) buf[FT_TOUCH_X_L_POS + FT_TOUCH_STEP * i];
-		event->y[i] =
-		    (s16) (buf[FT_TOUCH_Y_H_POS + FT_TOUCH_STEP * i] & 0x0F) <<
-		    8 | (s16) buf[FT_TOUCH_Y_L_POS + FT_TOUCH_STEP * i];
-		event->touch_event[i] =
-		    buf[FT_TOUCH_EVENT_POS + FT_TOUCH_STEP * i] >> 6;
-		event->finger_id[i] =
-		    (buf[FT_TOUCH_ID_POS + FT_TOUCH_STEP * i]) >> 4;
-	}
-
-	ft5x06_report_value(data);
-
-	return 0;
-}
-
 static irqreturn_t ft5x06_ts_interrupt(int irq, void *dev_id)
 {
 	struct ft5x06_ts_data *data = dev_id;
-	int rc;
+	struct input_dev *ip_dev;
+	int rc, i;
+	u32 id, x, y, pressure, status, num_touches;
+	u8 reg = 0x00, *buf;
+	bool update_input = false;
 
-	rc = ft5x06_handle_touchdata(data);
-	if (rc)
-		pr_err("%s: handling touchdata failed\n", __func__);
+	if (!data) {
+		pr_err("%s: Invalid data\n", __func__);
+		return IRQ_HANDLED;
+	}
+
+	ip_dev = data->input_dev;
+	buf = data->tch_data;
+
+	rc = ft5x06_i2c_read(data->client, &reg, 1,
+			buf, data->tch_data_len);
+	if (rc < 0) {
+		dev_err(&data->client->dev, "%s: read data fail\n", __func__);
+		return IRQ_HANDLED;
+	}
+
+	for (i = 0; i < data->pdata->num_max_touches; i++) {
+		id = (buf[FT_TOUCH_ID_POS + FT_ONE_TCH_LEN * i]) >> 4;
+		if (id >= FT_MAX_ID)
+			break;
+
+		update_input = true;
+
+		x = (buf[FT_TOUCH_X_H_POS + FT_ONE_TCH_LEN * i] & 0x0F) << 8 |
+			(buf[FT_TOUCH_X_L_POS + FT_ONE_TCH_LEN * i]);
+		y = (buf[FT_TOUCH_Y_H_POS + FT_ONE_TCH_LEN * i] & 0x0F) << 8 |
+			(buf[FT_TOUCH_Y_L_POS + FT_ONE_TCH_LEN * i]);
+
+		status = buf[FT_TOUCH_EVENT_POS + FT_ONE_TCH_LEN * i] >> 6;
+
+		num_touches = buf[FT_TD_STATUS] & FT_STATUS_NUM_TP_MASK;
+
+		/* invalid combination */
+		if (!num_touches && !status && !id)
+			break;
+
+		input_mt_slot(ip_dev, id);
+		if (status == FT_TOUCH_DOWN || status == FT_TOUCH_CONTACT) {
+			pressure = FT_PRESS;
+			input_mt_report_slot_state(ip_dev, MT_TOOL_FINGER, 1);
+			input_report_abs(ip_dev, ABS_MT_POSITION_X, x);
+			input_report_abs(ip_dev, ABS_MT_POSITION_Y, y);
+			input_report_abs(ip_dev, ABS_MT_PRESSURE, pressure);
+		} else
+			input_mt_report_slot_state(ip_dev, MT_TOOL_FINGER, 0);
+	}
+
+	if (update_input) {
+		input_mt_report_pointer_emulation(ip_dev, false);
+		input_sync(ip_dev);
+	}
 
 	return IRQ_HANDLED;
 }
@@ -520,7 +437,7 @@ static int ft5x06_ts_suspend(struct device *dev)
 	disable_irq(data->client->irq);
 
 	/* release all touches */
-	for (i = 0; i < CFG_MAX_TOUCH_POINTS; i++) {
+	for (i = 0; i < data->pdata->num_max_touches; i++) {
 		input_mt_slot(data->input_dev, i);
 		input_mt_report_slot_state(data->input_dev, MT_TOOL_FINGER, 0);
 	}
@@ -554,7 +471,7 @@ static int ft5x06_ts_suspend(struct device *dev)
 pwr_off_fail:
 	if (gpio_is_valid(data->pdata->reset_gpio)) {
 		gpio_set_value_cansleep(data->pdata->reset_gpio, 0);
-		msleep(FT_RESET_DLY);
+		msleep(data->pdata->hard_rst_dly);
 		gpio_set_value_cansleep(data->pdata->reset_gpio, 1);
 	}
 	enable_irq(data->client->irq);
@@ -567,7 +484,7 @@ static int ft5x06_ts_resume(struct device *dev)
 	int err;
 
 	if (!data->suspended) {
-		dev_info(dev, "Already in awake state\n");
+		dev_dbg(dev, "Already in awake state\n");
 		return 0;
 	}
 
@@ -587,11 +504,11 @@ static int ft5x06_ts_resume(struct device *dev)
 
 	if (gpio_is_valid(data->pdata->reset_gpio)) {
 		gpio_set_value_cansleep(data->pdata->reset_gpio, 0);
-		msleep(FT_RESET_DLY);
+		msleep(data->pdata->hard_rst_dly);
 		gpio_set_value_cansleep(data->pdata->reset_gpio, 1);
 	}
 
-	msleep(FT_STARTUP_DLY);
+	msleep(data->pdata->soft_rst_dly);
 
 	enable_irq(data->client->irq);
 
@@ -650,16 +567,17 @@ static const struct dev_pm_ops ft5x06_ts_pm_ops = {
 
 static int ft5x06_auto_cal(struct i2c_client *client)
 {
+	struct ft5x06_ts_data *data = i2c_get_clientdata(client);
 	u8 temp = 0, i;
 
 	/* set to factory mode */
-	msleep(2 * FT_STARTUP_DLY);
+	msleep(2 * data->pdata->soft_rst_dly);
 	ft5x0x_write_reg(client, FT_REG_DEV_MODE, FT_FACTORYMODE_VALUE);
-	msleep(FT_STARTUP_DLY);
+	msleep(data->pdata->soft_rst_dly);
 
 	/* start calibration */
 	ft5x0x_write_reg(client, FT_DEV_MODE_REG_CAL, FT_CAL_START);
-	msleep(2 * FT_STARTUP_DLY);
+	msleep(2 * data->pdata->soft_rst_dly);
 	for (i = 0; i < FT_CAL_RETRY; i++) {
 		ft5x0x_read_reg(client, FT_REG_CAL, &temp);
 		/* return to normal mode, calibration finish */
@@ -668,36 +586,17 @@ static int ft5x06_auto_cal(struct i2c_client *client)
 	}
 
 	/*calibration OK */
-	msleep(2 * FT_STARTUP_DLY);
+	msleep(2 * data->pdata->soft_rst_dly);
 	ft5x0x_write_reg(client, FT_REG_DEV_MODE, FT_FACTORYMODE_VALUE);
-	msleep(FT_STARTUP_DLY);
+	msleep(data->pdata->soft_rst_dly);
 
 	/* store calibration data */
 	ft5x0x_write_reg(client, FT_DEV_MODE_REG_CAL, FT_CAL_STORE);
-	msleep(2 * FT_STARTUP_DLY);
+	msleep(2 * data->pdata->soft_rst_dly);
 
 	/* set to normal mode */
 	ft5x0x_write_reg(client, FT_REG_DEV_MODE, FT_WORKMODE_VALUE);
-	msleep(2 * FT_STARTUP_DLY);
-
-	return 0;
-}
-
-static int ft5x06_get_upgrade_info(u8 family_id, struct upgrade_info *info)
-{
-	switch (family_id) {
-	case FT5306I_ID:
-		FT_UPGRADE_INFO(info, FT5X06);
-		break;
-	case FT5316_ID:
-		FT_UPGRADE_INFO(info, FT5316);
-		break;
-	case FT6X06_ID:
-		FT_UPGRADE_INFO(info, FT6X06);
-		break;
-	default:
-		return -EINVAL;
-	}
+	msleep(2 * data->pdata->soft_rst_dly);
 
 	return 0;
 }
@@ -706,7 +605,7 @@ static int ft5x06_fw_upgrade_start(struct i2c_client *client,
 			const u8 *data, u32 data_len)
 {
 	struct ft5x06_ts_data *ts_data = i2c_get_clientdata(client);
-	struct upgrade_info info;
+	struct fw_upgrade_info info = ts_data->pdata->info;
 	u8 reset_reg;
 	u8 w_buf[FT_MAX_WR_BUF] = {0}, r_buf[FT_MAX_RD_BUF] = {0};
 	u8 pkt_buf[FT_FW_PKT_LEN + FT_FW_PKT_META_LEN];
@@ -714,12 +613,6 @@ static int ft5x06_fw_upgrade_start(struct i2c_client *client,
 	u32 pkt_num, pkt_len;
 	u8 fw_ecc;
 
-	rc = ft5x06_get_upgrade_info(ts_data->family_id, &info);
-	if (rc < 0) {
-		dev_err(&client->dev, "Cannot get upgrade information!\n");
-		return -EINVAL;
-	}
-
 	for (i = 0, j = 0; i < FT_UPGRADE_LOOP; i++) {
 		/* reset - write 0xaa and 0x55 to reset register */
 		if (ts_data->family_id == FT6X06_ID)
@@ -766,7 +659,7 @@ static int ft5x06_fw_upgrade_start(struct i2c_client *client,
 	/* erase app and panel paramenter area */
 	w_buf[0] = FT_ERASE_APP_REG;
 	ft5x06_i2c_write(client, w_buf, 1);
-	msleep(info.delay_earse_flash);
+	msleep(info.delay_erase_flash);
 
 	w_buf[0] = FT_ERASE_PANEL_REG;
 	ft5x06_i2c_write(client, w_buf, 1);
@@ -841,7 +734,7 @@ static int ft5x06_fw_upgrade_start(struct i2c_client *client,
 	/* reset */
 	w_buf[0] = FT_REG_RESET_FW;
 	ft5x06_i2c_write(client, w_buf, 1);
-	msleep(FT_STARTUP_DLY);
+	msleep(ts_data->pdata->soft_rst_dly);
 
 	dev_info(&client->dev, "Firmware upgrade successful\n");
 
@@ -889,14 +782,16 @@ static int ft5x06_fw_upgrade(struct device *dev, bool force)
 		rc = ft5x06_fw_upgrade_start(data->client, fw->data, fw->size);
 		if (rc < 0)
 			dev_err(dev, "update failed (%d)\n", rc);
-		else
+		else if (data->pdata->info.auto_cal)
 			ft5x06_auto_cal(data->client);
 	} else {
 		dev_err(dev, "FW format error\n");
 		rc = -EIO;
 	}
 
-	FT_STORE_TS_INFO(data->ts_info, data->family_id, FT_FW_FILE_VER(fw));
+	FT_STORE_TS_INFO(data->ts_info, data->family_id, data->pdata->name,
+			data->pdata->num_max_touches, data->pdata->group_id,
+			data->pdata->fw_name, FT_FW_FILE_VER(fw));
 rel_fw:
 	release_firmware(fw);
 	return rc;
@@ -1180,6 +1075,13 @@ static int ft5x06_parse_dt(struct device *dev,
 	u32 temp_val, num_buttons;
 	u32 button_map[MAX_BUTTONS];
 
+	pdata->name = "focaltech";
+	rc = of_property_read_string(np, "focaltech,name", &pdata->name);
+	if (rc && (rc != -EINVAL)) {
+		dev_err(dev, "Unable to read name\n");
+		return rc;
+	}
+
 	rc = ft5x06_get_dt_coords(dev, "focaltech,panel-coords", pdata);
 	if (rc && (rc != -EINVAL))
 		return rc;
@@ -1204,6 +1106,86 @@ static int ft5x06_parse_dt(struct device *dev,
 	if (pdata->irq_gpio < 0)
 		return pdata->irq_gpio;
 
+	pdata->fw_name = "ft_fw.bin";
+	rc = of_property_read_string(np, "focaltech,fw-name", &pdata->fw_name);
+	if (rc && (rc != -EINVAL)) {
+		dev_err(dev, "Unable to read fw name\n");
+		return rc;
+	}
+
+	rc = of_property_read_u32(np, "focaltech,group-id", &temp_val);
+	if (!rc)
+		pdata->group_id = temp_val;
+	else
+		return rc;
+
+	rc = of_property_read_u32(np, "focaltech,hard-reset-delay-ms",
+							&temp_val);
+	if (!rc)
+		pdata->hard_rst_dly = temp_val;
+	else
+		return rc;
+
+	rc = of_property_read_u32(np, "focaltech,soft-reset-delay-ms",
+							&temp_val);
+	if (!rc)
+		pdata->soft_rst_dly = temp_val;
+	else
+		return rc;
+
+	rc = of_property_read_u32(np, "focaltech,num-max-touches", &temp_val);
+	if (!rc)
+		pdata->num_max_touches = temp_val;
+	else
+		return rc;
+
+	rc = of_property_read_u32(np, "focaltech,fw-delay-aa-ms", &temp_val);
+	if (rc && (rc != -EINVAL)) {
+		dev_err(dev, "Unable to read fw delay aa\n");
+		return rc;
+	} else if (rc != -EINVAL)
+		pdata->info.delay_aa =  temp_val;
+
+	rc = of_property_read_u32(np, "focaltech,fw-delay-55-ms", &temp_val);
+	if (rc && (rc != -EINVAL)) {
+		dev_err(dev, "Unable to read fw delay 55\n");
+		return rc;
+	} else if (rc != -EINVAL)
+		pdata->info.delay_55 =  temp_val;
+
+	rc = of_property_read_u32(np, "focaltech,fw-upgrade-id1", &temp_val);
+	if (rc && (rc != -EINVAL)) {
+		dev_err(dev, "Unable to read fw upgrade id1\n");
+		return rc;
+	} else if (rc != -EINVAL)
+		pdata->info.upgrade_id_1 =  temp_val;
+
+	rc = of_property_read_u32(np, "focaltech,fw-upgrade-id2", &temp_val);
+	if (rc && (rc != -EINVAL)) {
+		dev_err(dev, "Unable to read fw upgrade id2\n");
+		return rc;
+	} else if (rc != -EINVAL)
+		pdata->info.upgrade_id_2 =  temp_val;
+
+	rc = of_property_read_u32(np, "focaltech,fw-delay-readid-ms",
+							&temp_val);
+	if (rc && (rc != -EINVAL)) {
+		dev_err(dev, "Unable to read fw delay read id\n");
+		return rc;
+	} else if (rc != -EINVAL)
+		pdata->info.delay_readid =  temp_val;
+
+	rc = of_property_read_u32(np, "focaltech,fw-delay-era-flsh-ms",
+							&temp_val);
+	if (rc && (rc != -EINVAL)) {
+		dev_err(dev, "Unable to read fw delay erase flash\n");
+		return rc;
+	} else if (rc != -EINVAL)
+		pdata->info.delay_erase_flash =  temp_val;
+
+	pdata->info.auto_cal = of_property_read_bool(np,
+					"focaltech,fw-auto-cal");
+
 	rc = of_property_read_u32(np, "focaltech,family-id", &temp_val);
 	if (!rc)
 		pdata->family_id = temp_val;
@@ -1244,7 +1226,7 @@ static int ft5x06_ts_probe(struct i2c_client *client,
 	struct dentry *temp;
 	u8 reg_value;
 	u8 reg_addr;
-	int err;
+	int err, len;
 
 	if (client->dev.of_node) {
 		pdata = devm_kzalloc(&client->dev,
@@ -1253,8 +1235,10 @@ static int ft5x06_ts_probe(struct i2c_client *client,
 			return -ENOMEM;
 
 		err = ft5x06_parse_dt(&client->dev, pdata);
-		if (err)
+		if (err) {
+			dev_err(&client->dev, "DT parsing failed\n");
 			return err;
+		}
 	} else
 		pdata = client->dev.platform_data;
 
@@ -1268,15 +1252,31 @@ static int ft5x06_ts_probe(struct i2c_client *client,
 		return -ENODEV;
 	}
 
-	data = kzalloc(sizeof(struct ft5x06_ts_data), GFP_KERNEL);
+	data = devm_kzalloc(&client->dev,
+			sizeof(struct ft5x06_ts_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	if (pdata->fw_name) {
+		len = strlen(pdata->fw_name);
+		if (len > FT_FW_NAME_MAX_LEN - 1) {
+			dev_err(&client->dev, "Invalid firmware name\n");
+			return -EINVAL;
+		}
+
+		strlcpy(data->fw_name, pdata->fw_name, len + 1);
+	}
+
+	data->tch_data_len = FT_TCH_LEN(pdata->num_max_touches);
+	data->tch_data = devm_kzalloc(&client->dev,
+				data->tch_data_len, GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
 	input_dev = input_allocate_device();
 	if (!input_dev) {
-		err = -ENOMEM;
 		dev_err(&client->dev, "failed to allocate input device\n");
-		goto free_mem;
+		return -ENOMEM;
 	}
 
 	data->input_dev = input_dev;
@@ -1295,12 +1295,12 @@ static int ft5x06_ts_probe(struct i2c_client *client,
 	__set_bit(BTN_TOUCH, input_dev->keybit);
 	__set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
 
-	input_mt_init_slots(input_dev, CFG_MAX_TOUCH_POINTS);
+	input_mt_init_slots(input_dev, pdata->num_max_touches);
 	input_set_abs_params(input_dev, ABS_MT_POSITION_X, pdata->x_min,
 			     pdata->x_max, 0, 0);
 	input_set_abs_params(input_dev, ABS_MT_POSITION_Y, pdata->y_min,
 			     pdata->y_max, 0, 0);
-	input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, FT_PRESS, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, FT_PRESS, 0, 0);
 
 	err = input_register_device(input_dev);
 	if (err) {
@@ -1363,12 +1363,12 @@ static int ft5x06_ts_probe(struct i2c_client *client,
 				"set_direction for reset gpio failed\n");
 			goto free_reset_gpio;
 		}
-		msleep(FT_RESET_DLY);
+		msleep(data->pdata->hard_rst_dly);
 		gpio_set_value_cansleep(data->pdata->reset_gpio, 1);
 	}
 
 	/* make sure CTP already finish startup process */
-	msleep(FT_STARTUP_DLY);
+	msleep(data->pdata->soft_rst_dly);
 
 	/* check the controller id */
 	reg_addr = FT_REG_ID;
@@ -1452,7 +1452,8 @@ static int ft5x06_ts_probe(struct i2c_client *client,
 		goto free_debug_dir;
 	}
 
-	data->ts_info = kzalloc(FT_INFO_MAX_LEN, GFP_KERNEL);
+	data->ts_info = devm_kzalloc(&client->dev,
+				FT_INFO_MAX_LEN, GFP_KERNEL);
 	if (!data->ts_info)
 		goto free_debug_dir;
 
@@ -1478,7 +1479,9 @@ static int ft5x06_ts_probe(struct i2c_client *client,
 
 	dev_info(&client->dev, "Firmware version = 0x%x\n", reg_value);
 
-	FT_STORE_TS_INFO(data->ts_info, data->family_id, reg_value);
+	FT_STORE_TS_INFO(data->ts_info, data->family_id, data->pdata->name,
+			data->pdata->num_max_touches, data->pdata->group_id,
+			data->pdata->fw_name, reg_value);
 
 #if defined(CONFIG_FB)
 	data->fb_notif.notifier_call = fb_notifier_callback;
@@ -1529,8 +1532,6 @@ unreg_inputdev:
 	input_dev = NULL;
 free_inputdev:
 	input_free_device(input_dev);
-free_mem:
-	kfree(data);
 	return err;
 }
 
@@ -1568,8 +1569,6 @@ static int ft5x06_ts_remove(struct i2c_client *client)
 		ft5x06_power_init(data, false);
 
 	input_unregister_device(data->input_dev);
-	kfree(data->ts_info);
-	kfree(data);
 
 	return 0;
 }

include/linux/input/ft5x06_ts.h

@@ -23,7 +23,20 @@
 #define FT5X36_ID		0x14
 #define FT6X06_ID		0x06
 
+struct fw_upgrade_info {
+	bool auto_cal;
+	u16 delay_aa;
+	u16 delay_55;
+	u8 upgrade_id_1;
+	u8 upgrade_id_2;
+	u16 delay_readid;
+	u16 delay_erase_flash;
+};
+
 struct ft5x06_ts_platform_data {
+	struct fw_upgrade_info info;
+	const char *name;
+	const char *fw_name;
 	u32 irqflags;
 	u32 irq_gpio;
 	u32 irq_gpio_flags;
@@ -38,6 +51,10 @@ struct ft5x06_ts_platform_data {
 	u32 panel_miny;
 	u32 panel_maxx;
 	u32 panel_maxy;
+	u32 group_id;
+	u32 hard_rst_dly;
+	u32 soft_rst_dly;
+	u32 num_max_touches;
 	bool no_force_update;
 	bool i2c_pull_up;
 	int (*power_init)(bool);