Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Pull input updates from Dmitry Torokhov:

 - input core allows hardware drivers to specify a [more precise]
   timestamp (normally taken in top half) to better track velocity of
   contacts

 - input_dev instances now support "polling" mode so that drivers could
   use the same object for polled and interrupt-driven operation. The
   plan is to convert existing drivers and retire input_polled_dev API

 - a new driver for the FlySky FS-iA6B RC receiver

 - a refresh of BU21013 touchpad driver

 - w90x900 keyboard and touchpad drivers are removed as the platform is
   gone

 - assorted fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (45 commits)
  Input: sidewinder - make array seq static const, makes object smaller
  Input: reset device timestamp on sync
  Input: bu21013_ts - switch to using standard touchscreen properties
  Input: bu21013_ts - switch to using MT-B (slotted) protocol
  Input: bu21013_ts - fix suspend when wake source
  Input: bu21013_ts - use interrupt from I2C client
  Input: bu21013_ts - remove support for platform data
  Input: bu21013_ts - convert to using managed resources
  Input: bu21013_ts - remove useless comments
  Input: bu21013_ts - annotate supend/resume methods as __maybe_unused
  Input: bu21013_ts - rename some variables
  Input: bu21013_ts - convert to use GPIO descriptors
  ARM: ux500: improve BU21013 touchpad bindings
  Input: i8042 - enable wakeup on a stable struct device
  Input: soc_button_array - use platform_device_register_resndata()
  Input: psmouse - drop all unneeded functions from mouse headers
  Input: add support for polling to input devices
  Input: wacom_w8001 - allocate additional space for 'phys'
  Input: cros_ec_keyb - add back missing mask for event_type
  Input: remove dev_err() usage after platform_get_irq()
  ...

1 files changed, 30 insertions, 8 deletions

diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index accbbe8d2966..51ddb204ca1b 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -20,6 +20,7 @@
 #include <linux/sched.h>
 #include <linux/delay.h>
 #include <linux/input.h>
+#include <linux/input/touchscreen.h>
 #include <linux/interrupt.h>
 #include <linux/slab.h>
 #include <linux/pm.h>
@@ -129,6 +130,8 @@ struct ads7846 {
 
 	u16			penirq_recheck_delay_usecs;
 
+	struct touchscreen_properties core_prop;
+
 	struct mutex		lock;
 	bool			stopped;	/* P: lock */
 	bool			disabled;	/* P: lock */
@@ -823,17 +826,13 @@ static void ads7846_report_state(struct ads7846 *ts)
 	if (Rt) {
 		struct input_dev *input = ts->input;
 
-		if (ts->swap_xy)
-			swap(x, y);
-
 		if (!ts->pendown) {
 			input_report_key(input, BTN_TOUCH, 1);
 			ts->pendown = true;
 			dev_vdbg(&ts->spi->dev, "DOWN\n");
 		}
 
-		input_report_abs(input, ABS_X, x);
-		input_report_abs(input, ABS_Y, y);
+		touchscreen_report_pos(input, &ts->core_prop, x, y, false);
 		input_report_abs(input, ABS_PRESSURE, ts->pressure_max - Rt);
 
 		input_sync(input);
@@ -1185,6 +1184,7 @@ static const struct ads7846_platform_data *ads7846_probe_dt(struct device *dev)
 	struct ads7846_platform_data *pdata;
 	struct device_node *node = dev->of_node;
 	const struct of_device_id *match;
+	u32 value;
 
 	if (!node) {
 		dev_err(dev, "Device does not have associated DT data\n");
@@ -1223,10 +1223,18 @@ static const struct ads7846_platform_data *ads7846_probe_dt(struct device *dev)
 	of_property_read_u16(node, "ti,x-max", &pdata->x_max);
 	of_property_read_u16(node, "ti,y-max", &pdata->y_max);
 
+	/*
+	 * touchscreen-max-pressure gets parsed during
+	 * touchscreen_parse_properties()
+	 */
 	of_property_read_u16(node, "ti,pressure-min", &pdata->pressure_min);
+	if (!of_property_read_u32(node, "touchscreen-min-pressure", &value))
+		pdata->pressure_min = (u16) value;
 	of_property_read_u16(node, "ti,pressure-max", &pdata->pressure_max);
 
 	of_property_read_u16(node, "ti,debounce-max", &pdata->debounce_max);
+	if (!of_property_read_u32(node, "touchscreen-average-samples", &value))
+		pdata->debounce_max = (u16) value;
 	of_property_read_u16(node, "ti,debounce-tol", &pdata->debounce_tol);
 	of_property_read_u16(node, "ti,debounce-rep", &pdata->debounce_rep);
 
@@ -1309,10 +1317,7 @@ static int ads7846_probe(struct spi_device *spi)
 	ts->model = pdata->model ? : 7846;
 	ts->vref_delay_usecs = pdata->vref_delay_usecs ? : 100;
 	ts->x_plate_ohms = pdata->x_plate_ohms ? : 400;
-	ts->pressure_max = pdata->pressure_max ? : ~0;
-
 	ts->vref_mv = pdata->vref_mv;
-	ts->swap_xy = pdata->swap_xy;
 
 	if (pdata->filter != NULL) {
 		if (pdata->filter_init != NULL) {
@@ -1364,6 +1369,23 @@ static int ads7846_probe(struct spi_device *spi)
 	input_set_abs_params(input_dev, ABS_PRESSURE,
 			pdata->pressure_min, pdata->pressure_max, 0, 0);
 
+	/*
+	 * Parse common framework properties. Must be done here to ensure the
+	 * correct behaviour in case of using the legacy vendor bindings. The
+	 * general binding value overrides the vendor specific one.
+	 */
+	touchscreen_parse_properties(ts->input, false, &ts->core_prop);
+	ts->pressure_max = input_abs_get_max(input_dev, ABS_PRESSURE) ? : ~0;
+
+	/*
+	 * Check if legacy ti,swap-xy binding is used instead of
+	 * touchscreen-swapped-x-y
+	 */
+	if (!ts->core_prop.swap_x_y && pdata->swap_xy) {
+		swap(input_dev->absinfo[ABS_X], input_dev->absinfo[ABS_Y]);
+		ts->core_prop.swap_x_y = true;
+	}
+
 	ads7846_setup_spi_msg(ts, pdata);
 
 	ts->reg = regulator_get(&spi->dev, "vcc");