linux-kernel - [PATCH 7/7] Input: sx8654 - use common of

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Date:   Tue, 16 Oct 2018 11:23:10 +0200
From:   Richard Leitner <richard.leitner@...data.com>
To:     <dmitry.torokhov@...il.com>, <robh+dt@...nel.org>,
        <mark.rutland@....com>
CC:     <linux-input@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Richard Leitner <richard.leitner@...data.com>
Subject: [PATCH 7/7] Input: sx8654 - use common of_touchscreen functions

of_touchscreen.c provides a common interface for a axis invertion and
swapping of touchscreens. Therefore use it in the sx8654 driver.

Signed-off-by: Richard Leitner <richard.leitner@...data.com>
---
 drivers/input/touchscreen/sx8654.c | 37 +++++++++++++++++++------------------
 1 file changed, 19 insertions(+), 18 deletions(-)

diff --git a/drivers/input/touchscreen/sx8654.c b/drivers/input/touchscreen/sx8654.c
index 33f7a0be4ef8..08b064f96b4e 100644
--- a/drivers/input/touchscreen/sx8654.c
+++ b/drivers/input/touchscreen/sx8654.c
@@ -36,6 +36,7 @@
 #include <linux/gpio/consumer.h>
 #include <linux/delay.h>
 #include <linux/hrtimer.h>
+#include <linux/input/touchscreen.h>
 
 /* register addresses */
 #define I2C_REG_TOUCH0			0x00
@@ -100,6 +101,7 @@ struct sx8654 {
 	struct i2c_client *client;
 	struct gpio_desc *gpio_reset;
 	struct hrtimer timer;
+	struct touchscreen_properties props;
 
 	const struct sx865x_data *data;
 };
@@ -168,8 +170,7 @@ static irqreturn_t sx8650_irq(int irq, void *handle)
 				 chdata);
 	}
 
-	input_report_abs(ts->input, ABS_X, x);
-	input_report_abs(ts->input, ABS_Y, y);
+	touchscreen_report_pos(ts->input, &ts->props, x, y, false);
 	input_report_key(ts->input, BTN_TOUCH, 1);
 	input_sync(ts->input);
 	dev_dbg(dev, "point(%4d,%4d)\n", x, y);
@@ -215,8 +216,8 @@ static irqreturn_t sx8654_irq(int irq, void *handle)
 		x = ((data[0] & 0xf) << 8) | (data[1]);
 		y = ((data[2] & 0xf) << 8) | (data[3]);
 
-		input_report_abs(sx8654->input, ABS_X, x);
-		input_report_abs(sx8654->input, ABS_Y, y);
+		touchscreen_report_pos(sx8654->input, &sx8654->props, x, y,
+				       false);
 		input_report_key(sx8654->input, BTN_TOUCH, 1);
 		input_sync(sx8654->input);
 
@@ -355,6 +356,8 @@ static int sx8654_get_ofdata(struct sx8654 *ts)
 	}
 	dev_dbg(dev, "got GPIO reset pin\n");
 
+	touchscreen_parse_properties(ts->input, false, &ts->props);
+
 	return 0;
 }
 #else /* CONFIG_OF */
@@ -380,25 +383,11 @@ static int sx8654_probe(struct i2c_client *client,
 	sx8654 = devm_kzalloc(&client->dev, sizeof(*sx8654), GFP_KERNEL);
 	if (!sx8654)
 		return -ENOMEM;
-
 	sx8654->client = client;
 
-	error = sx8654_get_ofdata(sx8654);
-	if (error) {
-		dev_err(&client->dev, "get_ofdata failed: %d\n", error);
-		return error;
-	}
-
-	if (!sx8654->data->has_irq_penrelease) {
-		dev_dbg(&client->dev, "use timer for penrelease\n");
-		hrtimer_init(&sx8654->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-		sx8654->timer.function = sx865x_penrelease_timer_handler;
-	}
-
 	input = devm_input_allocate_device(&client->dev);
 	if (!input)
 		return -ENOMEM;
-
 	sx8654->input = input;
 
 	input->name = "SX8654 I2C Touchscreen";
@@ -414,6 +403,18 @@ static int sx8654_probe(struct i2c_client *client,
 
 	input_set_drvdata(sx8654->input, sx8654);
 
+	error = sx8654_get_ofdata(sx8654);
+	if (error) {
+		dev_err(&client->dev, "get_ofdata failed: %d\n", error);
+		return error;
+	}
+
+	if (!sx8654->data->has_irq_penrelease) {
+		dev_dbg(&client->dev, "use timer for penrelease\n");
+		hrtimer_init(&sx8654->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+		sx8654->timer.function = sx865x_penrelease_timer_handler;
+	}
+
 	error = sx8654_reset(sx8654);
 	if (error) {
 		dev_err(&client->dev, "reset failed");
-- 
2.11.0