BGAFC Vendégkönyv

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miklos_akos (statz)

#5, Főfasz (1045)

5485 | #5a96 | ^ | Idézet | Tue, 23 Dec 2025 15:30:05 +01

185.187.*.*

*.75.187.185.dialin.segfault.club

Szoval, `novatek-nvt-ts` update.
Az alabbit okadtam bele a failelo ellenorzesbe:

> diff -Naur novatek-nvt-ts.c novatek-nvt-ts.c.new 
--- novatek-nvt-ts.c    2025-10-20 14:02:37.000000000 +0200
+++ novatek-nvt-ts.c.new        2025-12-23 14:04:23.284529473 +0100
@@ -266,6 +266,11 @@
            data->buf[NVT_TS_PARAMS_CHIP_ID] != chip->chip_id) {
                dev_err(dev, "Unsupported touchscreen parameters: %*ph\n",
                        NVT_TS_PARAMS_SIZE, data->buf);
+               dev_err(dev, "width? %d", width > NVT_TS_MAX_SIZE);
+               dev_err(dev, "height? %d", height > NVT_TS_MAX_SIZE);
+               dev_err(dev, "irq_type? %d", irq_type >= ARRAY_SIZE(nvt_ts_irq_type));
+               dev_err(dev, "wake_type? %d", data->buf[NVT_TS_PARAMS_WAKE_TYPE] != chip->wake_type);
+               dev_err(dev, "chip_id? %d", data->buf[NVT_TS_PARAMS_CHIP_ID] != chip->chip_id);
                return -EIO;
        }
 
miklos_akos@t16g2 | ~/sdm660/linux-6.17.4-sdm660/drivers/input/touchscreen
>

Recompile utan az alabbit okadta ki a kernel, a failelo check erteke 1

[    8.613601] novatek-nvt-ts 0-0001: width? 0
[    8.622022] novatek-nvt-ts 0-0001: height? 0
[    8.622231] novatek-nvt-ts 0-0001: irq_type? 0
[    8.622264] novatek-nvt-ts 0-0001: wake_type? 1
[    8.622311] novatek-nvt-ts 0-0001: chip_id? 0

Tehat ebbol az kovetkezik, hogy a chip->wake_type check failel, mert a driver nem tud vele mit kezdeni. A tobbi okes.
Ugyhogy a leheto legrosszabb megoldast valasztottam egy "gyors" teszt erejeig:

--- novatek-nvt-ts.c    2025-10-20 14:02:37.000000000 +0200
+++ novatek-nvt-ts.c.new        2025-12-23 15:13:59.428648138 +0100
@@ -30,7 +30,8 @@
 #define NVT_TS_PARAMS_WAKE_TYPE                0x0c
 #define NVT_TS_PARAMS_CHIP_ID          0x0e
 #define NVT_TS_PARAMS_SIZE             0x0f
-
+/* HACK FOR NOVATEK NT36672A */
+#define NVT_CHIP_NT36672A              0x01
 #define NVT_TS_MAX_TOUCHES             10
 #define NVT_TS_MAX_SIZE                        4096
 
@@ -258,15 +259,35 @@
        height = get_unaligned_be16(&data->buf[NVT_TS_PARAMS_HEIGHT]);
        data->max_touches = data->buf[NVT_TS_PARAMS_MAX_TOUCH];
        irq_type = data->buf[NVT_TS_PARAMS_IRQ_TYPE];
-
-       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);
-               return -EIO;
+       if (chip->chip_id != NVT_CHIP_NT36672A) {
+               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);
+                       dev_err(dev, "width? %d", width > NVT_TS_MAX_SIZE);
+                       dev_err(dev, "height? %d", height > NVT_TS_MAX_SIZE);
+                       dev_err(dev, "irq_type? %d", irq_type >= ARRAY_SIZE(nvt_ts_irq_type));
+                       dev_err(dev, "wake_type? %d", data->buf[NVT_TS_PARAMS_WAKE_TYPE] != chip->wake_type);
+                       dev_err(dev, "chip_id? %d", data->buf[NVT_TS_PARAMS_CHIP_ID] != chip->chip_id);
+                       return -EIO;
+               }
+       } else {
+               dev_dbg(dev, "!!! WAKE_TYPE HACK FOR NOVATEK NT36672A !!! wake_type? %d", data->buf[NVT_TS_PARAMS_WAKE_TYPE]);
+               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_CHIP_ID] != chip->chip_id) {
+                       dev_err(dev, "Unsupported touchscreen parameters: %*ph\n",
+                               NVT_TS_PARAMS_SIZE, data->buf);
+                       dev_err(dev, "width? %d", width > NVT_TS_MAX_SIZE);
+                       dev_err(dev, "height? %d", height > NVT_TS_MAX_SIZE);
+                       dev_err(dev, "irq_type? %d", irq_type >= ARRAY_SIZE(nvt_ts_irq_type));
+                       dev_err(dev, "chip_id? %d", data->buf[NVT_TS_PARAMS_CHIP_ID] != chip->chip_id);
+                       return -EIO;
+               }
        }
 
        dev_info(dev, "Detected %dx%d touchscreen with %d max touches\n",

Igen, fogtam es kibasztam a chip->wake_type ellenorzest, legrosszabb esetben osszefossa magat az egesz, legjobb esetben mukodni fog az erintopanel. :]
Most fordul az uj kernel, aztan mehet a flasheles.