From: Gianluca Boiano <morf3089@gmail.com>
Date: Sun, 25 Jan 2026 05:34:30 +0000 (-0800)
Subject: Input: novatek-nvt-ts - drop wake_type check
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7ff574599464bd0e30da88aabc7be9de1021204a;p=thirdparty%2Fkernel%2Flinux.git

Input: novatek-nvt-ts - drop wake_type check

The wake_type parameter from touchscreen registers is not used for
anything functional - the driver only validates that it matches a
hard-coded expected value per chip variant. This causes probe to fail
on touchscreens that report a different wake_type despite being
otherwise compatible.

Drop the wake_type check and the associated chip data member to allow
the existing compatibles to work with more touchscreen variants.

Signed-off-by: Gianluca Boiano <morf3089@gmail.com>
Suggested-by: Hans de Goede <hansg@kernel.org>
Link: https://patch.msgid.link/20260122001040.76869-1-morf3089@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---

diff --git a/drivers/input/touchscreen/novatek-nvt-ts.c b/drivers/input/touchscreen/novatek-nvt-ts.c
index 44b58e0dc1ad..3e6e2ee0ba8f 100644
--- a/drivers/input/touchscreen/novatek-nvt-ts.c
+++ b/drivers/input/touchscreen/novatek-nvt-ts.c
@@ -27,7 +27,6 @@
 #define NVT_TS_PARAMS_MAX_TOUCH		0x09
 #define NVT_TS_PARAMS_MAX_BUTTONS	0x0a
 #define NVT_TS_PARAMS_IRQ_TYPE		0x0b
-#define NVT_TS_PARAMS_WAKE_TYPE		0x0c
 #define NVT_TS_PARAMS_CHIP_ID		0x0e
 #define NVT_TS_PARAMS_SIZE		0x0f
 
@@ -49,7 +48,6 @@ static const int nvt_ts_irq_type[4] = {
 };
 
 struct nvt_ts_i2c_chip_data {
-	u8 wake_type;
 	u8 chip_id;
 };
 
@@ -261,7 +259,6 @@ static int nvt_ts_probe(struct i2c_client *client)
 	if (width > NVT_TS_MAX_SIZE || height >= NVT_TS_MAX_SIZE ||
 	    data->max_touches > NVT_TS_MAX_TOUCHES ||
 	    irq_type >= ARRAY_SIZE(nvt_ts_irq_type) ||
-	    data->buf[NVT_TS_PARAMS_WAKE_TYPE] != chip->wake_type ||
 	    data->buf[NVT_TS_PARAMS_CHIP_ID] != chip->chip_id) {
 		dev_err(dev, "Unsupported touchscreen parameters: %*ph\n",
 			NVT_TS_PARAMS_SIZE, data->buf);
@@ -314,12 +311,10 @@ static int nvt_ts_probe(struct i2c_client *client)
 }
 
 static const struct nvt_ts_i2c_chip_data nvt_nt11205_ts_data = {
-	.wake_type = 0x05,
 	.chip_id = 0x05,
 };
 
 static const struct nvt_ts_i2c_chip_data nvt_nt36672a_ts_data = {
-	.wake_type = 0x01,
 	.chip_id = 0x08,
 };