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Message-ID: <1446766727-30578-1-git-send-email-aduggan@synaptics.com>
Date: Thu, 5 Nov 2015 15:38:47 -0800
From: Andrew Duggan <aduggan@...aptics.com>
To: <linux-input@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: Benjamin Tissoires <benjamin.tissoires@...hat.com>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Linus Walleij <linus.walleij@...aro.org>,
Benjamin Tissoires <benjamin.tissoires@...il.com>,
Christopher Heiny <cheiny@...aptics.com>,
Stephen Chandler Paul <cpaul@...hat.com>
Subject: [PATCH 08/26] Input: synaptics-rmi4 - f11: use the unified input node if available
From: Benjamin Tissoires <benjamin.tissoires@...hat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
Tested-by: Andrew Duggan <aduggan@...aptics.com>
---
drivers/input/rmi4/rmi_f11.c | 60 ++++++++++++++++++++++++++------------------
1 file changed, 35 insertions(+), 25 deletions(-)
diff --git a/drivers/input/rmi4/rmi_f11.c b/drivers/input/rmi4/rmi_f11.c
index 7fd808f..dbe2681 100644
--- a/drivers/input/rmi4/rmi_f11.c
+++ b/drivers/input/rmi4/rmi_f11.c
@@ -34,7 +34,6 @@
#define DEFAULT_MAX_ABS_MT_ORIENTATION 1
#define DEFAULT_MIN_ABS_MT_TRACKING_ID 1
#define DEFAULT_MAX_ABS_MT_TRACKING_ID 10
-#define NAME_BUFFER_SIZE 256
#define FUNCTION_NUMBER 0x11
/** A note about RMI4 F11 register structure.
@@ -518,6 +517,7 @@ struct f11_2d_sensor {
u32 type_a; /* boolean but debugfs API requires u32 */
enum rmi_f11_sensor_type sensor_type;
struct input_dev *input;
+ bool unified_input;
struct rmi_function *fn;
char input_phys[NAME_BUFFER_SIZE];
u8 report_abs;
@@ -737,7 +737,8 @@ static void rmi_f11_finger_handler(struct f11_data *f11,
}
input_mt_sync_frame(sensor->input);
- input_sync(sensor->input);
+ if (!sensor->unified_input)
+ input_sync(sensor->input);
}
static int f11_2d_construct_data(struct f11_2d_sensor *sensor)
@@ -1373,35 +1374,42 @@ static int rmi_f11_initialize(struct rmi_function *fn)
static int rmi_f11_register_devices(struct rmi_function *fn)
{
struct rmi_device *rmi_dev = fn->rmi_dev;
+ struct rmi_driver_data *drv_data = dev_get_drvdata(&rmi_dev->dev);
struct f11_data *f11 = dev_get_drvdata(&fn->dev);
struct input_dev *input_dev;
struct rmi_driver *driver = rmi_dev->driver;
struct f11_2d_sensor *sensor = &f11->sensor;
int rc;
- input_dev = input_allocate_device();
+ if (!drv_data->input) {
+ input_dev = input_allocate_device();
+ } else {
+ input_dev = drv_data->input;
+ sensor->unified_input = true;
+ }
if (!input_dev) {
rc = -ENOMEM;
goto error_unregister;
}
sensor->input = input_dev;
- if (driver->set_input_params) {
- rc = driver->set_input_params(rmi_dev, input_dev);
- if (rc < 0) {
- dev_err(&fn->dev,
- "%s: Error in setting input device.\n",
- __func__);
- goto error_unregister;
+
+ if (!sensor->unified_input) {
+ if (driver->set_input_params) {
+ rc = driver->set_input_params(rmi_dev, input_dev);
+ if (rc < 0) {
+ dev_err(&fn->dev,
+ "%s: Error in setting input device.\n",
+ __func__);
+ goto error_unregister;
+ }
}
+ sprintf(sensor->input_phys, "%s.abs/input0",
+ dev_name(&fn->dev));
+ input_dev->phys = sensor->input_phys;
+ input_dev->dev.parent = &rmi_dev->dev;
}
- sprintf(sensor->input_phys, "%s.abs/input0",
- dev_name(&fn->dev));
- input_dev->phys = sensor->input_phys;
- input_dev->dev.parent = &rmi_dev->dev;
- input_set_drvdata(input_dev, f11);
- set_bit(EV_SYN, input_dev->evbit);
set_bit(EV_ABS, input_dev->evbit);
input_set_capability(input_dev, EV_KEY, BTN_TOUCH);
@@ -1413,19 +1421,21 @@ static int rmi_f11_register_devices(struct rmi_function *fn)
set_bit(REL_X, input_dev->relbit);
set_bit(REL_Y, input_dev->relbit);
}
- rc = input_register_device(input_dev);
- if (rc) {
- input_free_device(input_dev);
- sensor->input = NULL;
- goto error_unregister;
+ if (!sensor->unified_input) {
+ rc = input_register_device(input_dev);
+ if (rc) {
+ input_free_device(input_dev);
+ sensor->input = NULL;
+ goto error_unregister;
+ }
}
return 0;
error_unregister:
- if (f11->sensor.input) {
- input_unregister_device(f11->sensor.input);
- f11->sensor.input = NULL;
+ if (!sensor->unified_input && sensor->input) {
+ input_unregister_device(sensor->input);
+ sensor->input = NULL;
}
return rc;
@@ -1525,7 +1535,7 @@ static void rmi_f11_remove(struct rmi_function *fn)
{
struct f11_data *f11 = dev_get_drvdata(&fn->dev);
- if (f11->sensor.input)
+ if (!f11->sensor.unified_input && f11->sensor.input)
input_unregister_device(f11->sensor.input);
}
--
2.1.4
--
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