linux-kernel - [PATCH v1 1/1] input: touchscreen: atmel_mxt_ts: add support for generic touchscreen configurations

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Message-ID: <20250903162327.109538-2-clamor95@gmail.com>
Date: Wed,  3 Sep 2025 19:23:27 +0300
From: Svyatoslav Ryhel <clamor95@...il.com>
To: Nick Dyer <nick@...anahar.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Henrik Rydberg <rydberg@...math.org>,
	Svyatoslav Ryhel <clamor95@...il.com>
Cc: linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v1 1/1] input: touchscreen: atmel_mxt_ts: add support for generic touchscreen configurations

This provides support for generic touchscreen configuration options like
swapped-x-y, min-x, min-y, size-x, size-y, etc.

Signed-off-by: Svyatoslav Ryhel <clamor95@...il.com>
---
 drivers/input/touchscreen/atmel_mxt_ts.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 322d5a3d40a0..fc624101147e 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -19,6 +19,7 @@
 #include <linux/firmware.h>
 #include <linux/i2c.h>
 #include <linux/input/mt.h>
+#include <linux/input/touchscreen.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/of.h>
@@ -355,6 +356,8 @@ struct mxt_data {
 	enum mxt_suspend_mode suspend_mode;
 
 	u32 wakeup_method;
+
+	struct touchscreen_properties prop;
 };
 
 struct mxt_vb2_buffer {
@@ -888,8 +891,7 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message)
 
 		/* Touch active */
 		input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, 1);
-		input_report_abs(input_dev, ABS_MT_POSITION_X, x);
-		input_report_abs(input_dev, ABS_MT_POSITION_Y, y);
+		touchscreen_report_pos(input_dev, &data->prop, x, y, true);
 		input_report_abs(input_dev, ABS_MT_PRESSURE, amplitude);
 		input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, area);
 	} else {
@@ -1010,8 +1012,7 @@ static void mxt_proc_t100_message(struct mxt_data *data, u8 *message)
 			id, type, x, y, major, pressure, orientation);
 
 		input_mt_report_slot_state(input_dev, tool, 1);
-		input_report_abs(input_dev, ABS_MT_POSITION_X, x);
-		input_report_abs(input_dev, ABS_MT_POSITION_Y, y);
+		touchscreen_report_pos(input_dev, &data->prop, x, y, true);
 		input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, major);
 		input_report_abs(input_dev, ABS_MT_PRESSURE, pressure);
 		input_report_abs(input_dev, ABS_MT_DISTANCE, distance);
@@ -2212,6 +2213,8 @@ static int mxt_initialize_input_device(struct mxt_data *data)
 				     0, 255, 0, 0);
 	}
 
+	touchscreen_parse_properties(input_dev, true, &data->prop);
+
 	/* For T15 and T97 Key Array */
 	if (data->T15_reportid_min || data->T97_reportid_min) {
 		for (i = 0; i < data->t15_num_keys; i++)
-- 
2.48.1