Merge tag 'v3.7-rc3' into next to sync up with recent USB and MFD changes

5 files changed, 160 insertions, 22 deletions

diff --git a/drivers/input/touchscreen/88pm860x-ts.c b/drivers/input/touchscreen/88pm860x-ts.c
index 05f30b7..326218d 100644
--- a/drivers/input/touchscreen/88pm860x-ts.c
+++ b/drivers/input/touchscreen/88pm860x-ts.c
@@ -10,6 +10,7 @@
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/i2c.h>
 #include <linux/input.h>
@@ -113,14 +114,69 @@ static void pm860x_touch_close(struct input_dev *dev)
 	pm860x_set_bits(touch->i2c, MEAS_EN3, data, 0);
 }
 
+#ifdef CONFIG_OF
+static int __devinit pm860x_touch_dt_init(struct platform_device *pdev,
+					  struct pm860x_chip *chip,
+					  int *res_x)
+{
+	struct device_node *np = pdev->dev.parent->of_node;
+	struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \
+				 : chip->companion;
+	int data, n, ret;
+	if (!np)
+		return -ENODEV;
+	np = of_find_node_by_name(np, "touch");
+	if (!np) {
+		dev_err(&pdev->dev, "Can't find touch node\n");
+		return -EINVAL;
+	}
+	/* set GPADC MISC1 register */
+	data = 0;
+	if (!of_property_read_u32(np, "marvell,88pm860x-gpadc-prebias", &n))
+		data |= (n << 1) & PM8607_GPADC_PREBIAS_MASK;
+	if (!of_property_read_u32(np, "marvell,88pm860x-gpadc-slot-cycle", &n))
+		data |= (n << 3) & PM8607_GPADC_SLOT_CYCLE_MASK;
+	if (!of_property_read_u32(np, "marvell,88pm860x-gpadc-off-scale", &n))
+		data |= (n << 5) & PM8607_GPADC_OFF_SCALE_MASK;
+	if (!of_property_read_u32(np, "marvell,88pm860x-gpadc-sw-cal", &n))
+		data |= (n << 7) & PM8607_GPADC_SW_CAL_MASK;
+	if (data) {
+		ret = pm860x_reg_write(i2c, PM8607_GPADC_MISC1, data);
+		if (ret < 0)
+			return -EINVAL;
+	}
+	/* set tsi prebias time */
+	if (!of_property_read_u32(np, "marvell,88pm860x-tsi-prebias", &data)) {
+		ret = pm860x_reg_write(i2c, PM8607_TSI_PREBIAS, data);
+		if (ret < 0)
+			return -EINVAL;
+	}
+	/* set prebias & prechg time of pen detect */
+	data = 0;
+	if (!of_property_read_u32(np, "marvell,88pm860x-pen-prebias", &n))
+		data |= n & PM8607_PD_PREBIAS_MASK;
+	if (!of_property_read_u32(np, "marvell,88pm860x-pen-prechg", &n))
+		data |= n & PM8607_PD_PRECHG_MASK;
+	if (data) {
+		ret = pm860x_reg_write(i2c, PM8607_PD_PREBIAS, data);
+		if (ret < 0)
+			return -EINVAL;
+	}
+	of_property_read_u32(np, "marvell,88pm860x-resistor-X", res_x);
+	return 0;
+}
+#else
+#define pm860x_touch_dt_init(x, y, z)	(-1)
+#endif
+
 static int __devinit pm860x_touch_probe(struct platform_device *pdev)
 {
 	struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
-	struct pm860x_platform_data *pm860x_pdata =		\
-				pdev->dev.parent->platform_data;
-	struct pm860x_touch_pdata *pdata = NULL;
+	struct pm860x_touch_pdata *pdata = pdev->dev.platform_data;
 	struct pm860x_touch *touch;
-	int irq, ret;
+	struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \
+				 : chip->companion;
+	int irq, ret, res_x = 0, data = 0;
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
@@ -128,16 +184,55 @@ static int __devinit pm860x_touch_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	if (!pm860x_pdata) {
-		dev_err(&pdev->dev, "platform data is missing\n");
-		return -EINVAL;
-	}
-
-	pdata = pm860x_pdata->touch;
-	if (!pdata) {
-		dev_err(&pdev->dev, "touchscreen data is missing\n");
-		return -EINVAL;
+	if (pm860x_touch_dt_init(pdev, chip, &res_x)) {
+		if (pdata) {
+			/* set GPADC MISC1 register */
+			data = 0;
+			data |= (pdata->gpadc_prebias << 1)
+				& PM8607_GPADC_PREBIAS_MASK;
+			data |= (pdata->slot_cycle << 3)
+				& PM8607_GPADC_SLOT_CYCLE_MASK;
+			data |= (pdata->off_scale << 5)
+				& PM8607_GPADC_OFF_SCALE_MASK;
+			data |= (pdata->sw_cal << 7)
+				& PM8607_GPADC_SW_CAL_MASK;
+			if (data) {
+				ret = pm860x_reg_write(i2c,
+					PM8607_GPADC_MISC1, data);
+				if (ret < 0)
+					return -EINVAL;
+			}
+			/* set tsi prebias time */
+			if (pdata->tsi_prebias) {
+				data = pdata->tsi_prebias;
+				ret = pm860x_reg_write(i2c,
+					PM8607_TSI_PREBIAS, data);
+				if (ret < 0)
+					return -EINVAL;
+			}
+			/* set prebias & prechg time of pen detect */
+			data = 0;
+			data |= pdata->pen_prebias
+				& PM8607_PD_PREBIAS_MASK;
+			data |= (pdata->pen_prechg << 5)
+				& PM8607_PD_PRECHG_MASK;
+			if (data) {
+				ret = pm860x_reg_write(i2c,
+					PM8607_PD_PREBIAS, data);
+				if (ret < 0)
+					return -EINVAL;
+			}
+			res_x = pdata->res_x;
+		} else {
+			dev_err(&pdev->dev, "failed to get platform data\n");
+			return -EINVAL;
+		}
 	}
+	/* enable GPADC */
+	ret = pm860x_set_bits(i2c, PM8607_GPADC_MISC1, PM8607_GPADC_EN,
+			      PM8607_GPADC_EN);
+	if (ret)
+		return ret;
 
 	touch = kzalloc(sizeof(struct pm860x_touch), GFP_KERNEL);
 	if (touch == NULL)
@@ -158,9 +253,9 @@ static int __devinit pm860x_touch_probe(struct platform_device *pdev)
 	touch->idev->open = pm860x_touch_open;
 	touch->idev->close = pm860x_touch_close;
 	touch->chip = chip;
-	touch->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
-	touch->irq = irq + chip->irq_base;
-	touch->res_x = pdata->res_x;
+	touch->i2c = i2c;
+	touch->irq = irq;
+	touch->res_x = res_x;
 	input_set_drvdata(touch->idev, touch);
 
 	ret = request_threaded_irq(touch->irq, NULL, pm860x_touch_handler,
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index bcaea7a..d9c6007 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -558,9 +558,12 @@ static ssize_t edt_ft5x06_debugfs_raw_data_read(struct file *file,
 	}
 
 	read = min_t(size_t, count, tsdata->raw_bufsize - *off);
-	error = copy_to_user(buf, tsdata->raw_buffer + *off, read);
-	if (!error)
-		*off += read;
+	if (copy_to_user(buf, tsdata->raw_buffer + *off, read)) {
+		error = -EFAULT;
+		goto out;
+	}
+
+	*off += read;
 out:
 	mutex_unlock(&tsdata->mutex);
 	return error ?: read;
@@ -594,6 +597,7 @@ edt_ft5x06_ts_teardown_debugfs(struct edt_ft5x06_ts_data *tsdata)
 {
 	if (tsdata->debug_dir)
 		debugfs_remove_recursive(tsdata->debug_dir);
+	kfree(tsdata->raw_buffer);
 }
 
 #else
@@ -835,7 +839,6 @@ static int __devexit edt_ft5x06_ts_remove(struct i2c_client *client)
 	if (gpio_is_valid(pdata->reset_pin))
 		gpio_free(pdata->reset_pin);
 
-	kfree(tsdata->raw_buffer);
 	kfree(tsdata);
 
 	return 0;
diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c
index b3c66d4..549fa29 100644
--- a/drivers/input/touchscreen/s3c2410_ts.c
+++ b/drivers/input/touchscreen/s3c2410_ts.c
@@ -37,7 +37,7 @@
 
 #include <plat/adc.h>
 #include <plat/regs-adc.h>
-#include <plat/ts.h>
+#include <linux/platform_data/touchscreen-s3c2410.h>
 
 #define TSC_SLEEP  (S3C2410_ADCTSC_PULL_UP_DISABLE | S3C2410_ADCTSC_XY_PST(0))
 
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index e32709e..721fdb3 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -304,6 +304,45 @@ static int e2i_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
 #define EGALAX_PKT_TYPE_REPT		0x80
 #define EGALAX_PKT_TYPE_DIAG		0x0A
 
+static int egalax_init(struct usbtouch_usb *usbtouch)
+{
+	int ret, i;
+	unsigned char *buf;
+	struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
+
+	/*
+	 * An eGalax diagnostic packet kicks the device into using the right
+	 * protocol.  We send a "check active" packet.  The response will be
+	 * read later and ignored.
+	 */
+
+	buf = kmalloc(3, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	buf[0] = EGALAX_PKT_TYPE_DIAG;
+	buf[1] = 1;	/* length */
+	buf[2] = 'A';	/* command - check active */
+
+	for (i = 0; i < 3; i++) {
+		ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+				      0,
+				      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+				      0, 0, buf, 3,
+				      USB_CTRL_SET_TIMEOUT);
+		if (ret >= 0) {
+			ret = 0;
+			break;
+		}
+		if (ret != -EPIPE)
+			break;
+	}
+
+	kfree(buf);
+
+	return ret;
+}
+
 static int egalax_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
 {
 	if ((pkt[0] & EGALAX_PKT_TYPE_MASK) != EGALAX_PKT_TYPE_REPT)
@@ -1056,6 +1095,7 @@ static struct usbtouch_device_info usbtouch_dev_info[] = {
 		.process_pkt	= usbtouch_process_multi,
 		.get_pkt_len	= egalax_get_pkt_len,
 		.read_data	= egalax_read_data,
+		.init		= egalax_init,
 	},
 #endif
 
diff --git a/drivers/input/touchscreen/wm831x-ts.c b/drivers/input/touchscreen/wm831x-ts.c
index 362f78d..c7eee56 100644
--- a/drivers/input/touchscreen/wm831x-ts.c
+++ b/drivers/input/touchscreen/wm831x-ts.c
@@ -221,7 +221,7 @@ static void wm831x_ts_input_close(struct input_dev *idev)
 	synchronize_irq(wm831x_ts->pd_irq);
 
 	/* Make sure the IRQ completion work is quiesced */
-	flush_work_sync(&wm831x_ts->pd_data_work);
+	flush_work(&wm831x_ts->pd_data_work);
 
 	/* If we ended up with the pen down then make sure we revert back
 	 * to pen detection state for the next time we start up.