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path: root/drivers/input/touchscreen
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-rw-r--r--drivers/input/touchscreen/wm9713.c22
-rw-r--r--drivers/input/touchscreen/wm97xx-core.c25
2 files changed, 35 insertions, 12 deletions
diff --git a/drivers/input/touchscreen/wm9713.c b/drivers/input/touchscreen/wm9713.c
index 01278bd7e65c..838458792ea0 100644
--- a/drivers/input/touchscreen/wm9713.c
+++ b/drivers/input/touchscreen/wm9713.c
@@ -85,6 +85,15 @@ module_param(delay, int, 0);
MODULE_PARM_DESC(delay, "Set adc sample delay.");
/*
+ * Set five_wire = 1 to use a 5 wire touchscreen.
+ *
+ * NOTE: Five wire mode does not allow for readback of pressure.
+ */
+static int five_wire;
+module_param(five_wire, int, 0);
+MODULE_PARM_DESC(five_wire, "Set to '1' to use 5-wire touchscreen.");
+
+/*
* Set adc mask function.
*
* Sources of glitch noise, such as signals driving an LCD display, may feed
@@ -162,6 +171,19 @@ static void wm9713_phy_init(struct wm97xx *wm)
64000 / rpu);
}
+ /* Five wire panel? */
+ if (five_wire) {
+ dig3 |= WM9713_45W;
+ dev_info(wm->dev, "setting 5-wire touchscreen mode.");
+
+ if (pil) {
+ dev_warn(wm->dev,
+ "Pressure measurement not supported in 5 "
+ "wire mode, disabling\n");
+ pil = 0;
+ }
+ }
+
/* touchpanel pressure */
if (pil == 2) {
dig3 |= WM9712_PIL;
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index e9c7ea46b6e3..cdc24ad314e0 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -608,6 +608,17 @@ static int wm97xx_probe(struct device *dev)
goto alloc_err;
}
+ /* set up physical characteristics */
+ wm->codec->phy_init(wm);
+
+ /* load gpio cache */
+ wm->gpio[0] = wm97xx_reg_read(wm, AC97_GPIO_CFG);
+ wm->gpio[1] = wm97xx_reg_read(wm, AC97_GPIO_POLARITY);
+ wm->gpio[2] = wm97xx_reg_read(wm, AC97_GPIO_STICKY);
+ wm->gpio[3] = wm97xx_reg_read(wm, AC97_GPIO_WAKEUP);
+ wm->gpio[4] = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
+ wm->gpio[5] = wm97xx_reg_read(wm, AC97_MISC_AFE);
+
wm->input_dev = input_allocate_device();
if (wm->input_dev == NULL) {
ret = -ENOMEM;
@@ -616,6 +627,7 @@ static int wm97xx_probe(struct device *dev)
/* set up touch configuration */
wm->input_dev->name = "wm97xx touchscreen";
+ wm->input_dev->phys = "wm97xx";
wm->input_dev->open = wm97xx_ts_input_open;
wm->input_dev->close = wm97xx_ts_input_close;
set_bit(EV_ABS, wm->input_dev->evbit);
@@ -634,17 +646,6 @@ static int wm97xx_probe(struct device *dev)
if (ret < 0)
goto dev_alloc_err;
- /* set up physical characteristics */
- wm->codec->phy_init(wm);
-
- /* load gpio cache */
- wm->gpio[0] = wm97xx_reg_read(wm, AC97_GPIO_CFG);
- wm->gpio[1] = wm97xx_reg_read(wm, AC97_GPIO_POLARITY);
- wm->gpio[2] = wm97xx_reg_read(wm, AC97_GPIO_STICKY);
- wm->gpio[3] = wm97xx_reg_read(wm, AC97_GPIO_WAKEUP);
- wm->gpio[4] = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
- wm->gpio[5] = wm97xx_reg_read(wm, AC97_MISC_AFE);
-
/* register our battery device */
wm->battery_dev = platform_device_alloc("wm97xx-battery", -1);
if (!wm->battery_dev) {
@@ -801,7 +802,7 @@ void wm97xx_unregister_mach_ops(struct wm97xx *wm)
EXPORT_SYMBOL_GPL(wm97xx_unregister_mach_ops);
static struct device_driver wm97xx_driver = {
- .name = "ac97",
+ .name = "wm97xx-ts",
.bus = &ac97_bus_type,
.owner = THIS_MODULE,
.probe = wm97xx_probe,