linux-kernel - [PATCH v3 3/8] Input: synaptics-rmi4: Add dribble and palm gesture parameters to device tree

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Date:	Wed, 13 Jul 2016 23:08:42 -0700
From:	Andrew Duggan <aduggan@...aptics.com>
To:	<linux-input@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:	Andrew Duggan <aduggan@...aptics.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Jiri Kosina <jikos@...nel.org>,
	Benjamin Tissoires <benjamin.tissoires@...hat.com>,
	Vincent Huang <vincent.huang@...synaptics.com>,
	Nick Dyer <nick@...anahar.org>,
	Chris Healy <cphealy@...il.com>, <devicetree@...r.kernel.org>,
	Mark Rutland <mark.rutland@....com>,
	Rob Herring <robh@...nel.org>
Subject: [PATCH v3 3/8] Input: synaptics-rmi4: Add dribble and palm gesture parameters to device tree

Signed-off-by: Andrew Duggan <aduggan@...aptics.com>
---
This version includes Nick's suggestion of adding force to the device tree
parameters so make it obvious that these parameters overwrite the
default values set in the firware config.

 .../devicetree/bindings/input/rmi4/rmi_2d_sensor.txt        | 10 ++++++++++
 drivers/input/rmi4/rmi_2d_sensor.c                          | 13 +++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/rmi4/rmi_2d_sensor.txt b/Documentation/devicetree/bindings/input/rmi4/rmi_2d_sensor.txt
index f2c30c8..c00665d 100644
--- a/Documentation/devicetree/bindings/input/rmi4/rmi_2d_sensor.txt
+++ b/Documentation/devicetree/bindings/input/rmi4/rmi_2d_sensor.txt
@@ -37,6 +37,16 @@ Optional Properties:
 				disable reporing absolute position data.
 - syna,rezero-wait-ms: Time in miliseconds to wait after issuing a rezero
 				command.
+- syna,dribble-force-enable: Enable reporting of dribble packets in the firmware
+				(overwrites default value in firmware config).
+- syna,dribble-force-disable: Disable reporting of dribble packets in the firmware.
+				(overwrites default value in firmware config).
+- syna,palm-detect-force-enable: Enable reporting the palm detect gesture in the
+				firmware.  (overwrites default value in firmware
+				config).
+- syna,palm-detect-force-disable: Disable reporting the palm detect gesture in
+				the firmware.  (overwrites default value in
+				firmware config).
 
 
 Example of a RMI4 I2C device with F11:
diff --git a/drivers/input/rmi4/rmi_2d_sensor.c b/drivers/input/rmi4/rmi_2d_sensor.c
index e97bd7f..a092f6a 100644
--- a/drivers/input/rmi4/rmi_2d_sensor.c
+++ b/drivers/input/rmi4/rmi_2d_sensor.c
@@ -317,6 +317,19 @@ int rmi_2d_sensor_of_probe(struct device *dev,
 
 	pdata->rezero_wait = val;
 
+	if (of_property_read_bool(dev->of_node, "syna,dribble-force-enable"))
+		pdata->dribble = RMI_REG_STATE_ON;
+	else if (of_property_read_bool(dev->of_node,
+	    "syna,dribble-force-disable"))
+		pdata->dribble = RMI_REG_STATE_OFF;
+
+	if (of_property_read_bool(dev->of_node,
+	    "syna,palm-detect-force-enable"))
+		pdata->palm_detect = RMI_REG_STATE_ON;
+	else if (of_property_read_bool(dev->of_node,
+				"syna,palm-detect-force-disable"))
+		pdata->palm_detect = RMI_REG_STATE_OFF;
+
 	return 0;
 }
 #else
-- 
2.5.0