From 9370bb92b2d16684ee45cf24e879c93c509162da Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 19 Dec 2024 01:47:39 +0000
Subject: [PATCH] add wifi6 8852be driver
---
kernel/drivers/input/touchscreen/atmel_mxt_ts.c | 105 +++++++++++++++++++++++++++++++++++++---------------
1 files changed, 75 insertions(+), 30 deletions(-)
diff --git a/kernel/drivers/input/touchscreen/atmel_mxt_ts.c b/kernel/drivers/input/touchscreen/atmel_mxt_ts.c
index a2e10ca..3c152e9 100644
--- a/kernel/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/kernel/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Atmel maXTouch Touchscreen driver
*
@@ -7,12 +8,6 @@
* Copyright (C) 2016 Zodiac Inflight Innovations
*
* Author: Joonyoung Shim <jy0922.shim@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
*/
#include <linux/acpi.h>
@@ -25,11 +20,11 @@
#include <linux/i2c.h>
#include <linux/input/mt.h>
#include <linux/interrupt.h>
+#include <linux/irq.h>
#include <linux/of.h>
#include <linux/property.h>
#include <linux/slab.h>
#include <linux/gpio/consumer.h>
-#include <linux/property.h>
#include <asm/unaligned.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
@@ -135,6 +130,7 @@
/* MXT_SPT_COMMSCONFIG_T18 */
#define MXT_COMMS_CTRL 0
#define MXT_COMMS_CMD 1
+#define MXT_COMMS_RETRIGEN BIT(6)
/* MXT_DEBUG_DIAGNOSTIC_T37 */
#define MXT_DIAGNOSTIC_PAGEUP 0x01
@@ -262,16 +258,6 @@
MXT_V4L_INPUT_MAX,
};
-static const struct v4l2_file_operations mxt_video_fops = {
- .owner = THIS_MODULE,
- .open = v4l2_fh_open,
- .release = vb2_fop_release,
- .unlocked_ioctl = video_ioctl2,
- .read = vb2_fop_read,
- .mmap = vb2_fop_mmap,
- .poll = vb2_fop_poll,
-};
-
enum mxt_suspend_mode {
MXT_SUSPEND_DEEP_SLEEP = 0,
MXT_SUSPEND_T9_CTRL = 1,
@@ -324,6 +310,7 @@
struct t7_config t7_cfg;
struct mxt_dbg dbg;
struct gpio_desc *reset_gpio;
+ bool use_retrigen_workaround;
/* Cached parameters from object table */
u16 T5_address;
@@ -334,6 +321,7 @@
u16 T71_address;
u8 T9_reportid_min;
u8 T9_reportid_max;
+ u16 T18_address;
u8 T19_reportid;
u16 T44_address;
u8 T100_reportid_min;
@@ -489,7 +477,7 @@
bootloader = appmode - 0x24;
break;
}
- /* Fall through for normal case */
+ fallthrough; /* for normal case */
case 0x4c:
case 0x4d:
case 0x5a:
@@ -838,8 +826,7 @@
* have happened.
*/
if (status & MXT_T9_RELEASE) {
- input_mt_report_slot_state(input_dev,
- MT_TOOL_FINGER, 0);
+ input_mt_report_slot_inactive(input_dev);
mxt_input_sync(data);
}
@@ -855,7 +842,7 @@
input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, area);
} else {
/* Touch no longer active, close out slot */
- input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, 0);
+ input_mt_report_slot_inactive(input_dev);
}
data->update_input = true;
@@ -963,7 +950,7 @@
dev_dbg(dev, "[%u] release\n", id);
/* close out slot */
- input_mt_report_slot_state(input_dev, 0, 0);
+ input_mt_report_slot_inactive(input_dev);
}
data->update_input = true;
@@ -1207,9 +1194,11 @@
enable_irq(data->irq);
- error = mxt_process_messages_until_invalid(data);
- if (error)
- return error;
+ if (data->use_retrigen_workaround) {
+ error = mxt_process_messages_until_invalid(data);
+ if (error)
+ return error;
+ }
return 0;
}
@@ -1297,6 +1286,38 @@
crc &= 0x00FFFFFF;
return crc;
+}
+
+static int mxt_check_retrigen(struct mxt_data *data)
+{
+ struct i2c_client *client = data->client;
+ int error;
+ int val;
+ struct irq_data *irqd;
+
+ data->use_retrigen_workaround = false;
+
+ irqd = irq_get_irq_data(data->irq);
+ if (!irqd)
+ return -EINVAL;
+
+ if (irqd_is_level_type(irqd))
+ return 0;
+
+ if (data->T18_address) {
+ error = __mxt_read_reg(client,
+ data->T18_address + MXT_COMMS_CTRL,
+ 1, &val);
+ if (error)
+ return error;
+
+ if (val & MXT_COMMS_RETRIGEN)
+ return 0;
+ }
+
+ dev_warn(&client->dev, "Enabling RETRIGEN workaround\n");
+ data->use_retrigen_workaround = true;
+ return 0;
}
static int mxt_prepare_cfg_mem(struct mxt_data *data, struct mxt_cfg *cfg)
@@ -1527,7 +1548,8 @@
} else if (config_crc == data->config_crc) {
dev_dbg(dev, "Config CRC 0x%06X: OK\n",
data->config_crc);
- return 0;
+ ret = 0;
+ goto release_raw;
} else {
dev_info(dev, "Config CRC 0x%06X: does not match file 0x%06X\n",
data->config_crc, config_crc);
@@ -1577,6 +1599,10 @@
mxt_update_crc(data, MXT_COMMAND_BACKUPNV, MXT_BACKUP_VALUE);
+ ret = mxt_check_retrigen(data);
+ if (ret)
+ goto release_mem;
+
ret = mxt_soft_reset(data);
if (ret)
goto release_mem;
@@ -1620,6 +1646,7 @@
data->T71_address = 0;
data->T9_reportid_min = 0;
data->T9_reportid_max = 0;
+ data->T18_address = 0;
data->T19_reportid = 0;
data->T44_address = 0;
data->T100_reportid_min = 0;
@@ -1693,6 +1720,9 @@
data->T9_reportid_max = min_id +
object->num_report_ids - 1;
data->num_touchids = object->num_report_ids;
+ break;
+ case MXT_SPT_COMMSCONFIG_T18:
+ data->T18_address = object->start_address;
break;
case MXT_SPT_MESSAGECOUNT_T44:
data->T44_address = object->start_address;
@@ -2153,6 +2183,10 @@
msleep(MXT_FW_RESET_TIME);
}
+ error = mxt_check_retrigen(data);
+ if (error)
+ return error;
+
error = mxt_acquire_irq(data);
if (error)
return error;
@@ -2224,6 +2258,16 @@
}
#ifdef CONFIG_TOUCHSCREEN_ATMEL_MXT_T37
+static const struct v4l2_file_operations mxt_video_fops = {
+ .owner = THIS_MODULE,
+ .open = v4l2_fh_open,
+ .release = vb2_fop_release,
+ .unlocked_ioctl = video_ioctl2,
+ .read = vb2_fop_read,
+ .mmap = vb2_fop_mmap,
+ .poll = vb2_fop_poll,
+};
+
static u16 mxt_get_debug_value(struct mxt_data *data, unsigned int x,
unsigned int y)
{
@@ -2995,8 +3039,7 @@
int error;
if (device_property_present(dev, keymap_property)) {
- n_keys = device_property_read_u32_array(dev, keymap_property,
- NULL, 0);
+ n_keys = device_property_count_u32(dev, keymap_property);
if (n_keys <= 0) {
error = n_keys < 0 ? n_keys : -EINVAL;
dev_err(dev, "invalid/malformed '%s' property: %d\n",
@@ -3091,8 +3134,9 @@
if (error)
return error;
+ /* Request the RESET line as asserted so we go into reset */
data->reset_gpio = devm_gpiod_get_optional(&client->dev,
- "reset", GPIOD_OUT_LOW);
+ "reset", GPIOD_OUT_HIGH);
if (IS_ERR(data->reset_gpio)) {
error = PTR_ERR(data->reset_gpio);
dev_err(&client->dev, "Failed to get reset gpio: %d\n", error);
@@ -3110,8 +3154,9 @@
disable_irq(client->irq);
if (data->reset_gpio) {
+ /* Wait a while and then de-assert the RESET GPIO line */
msleep(MXT_RESET_GPIO_TIME);
- gpiod_set_value(data->reset_gpio, 1);
+ gpiod_set_value(data->reset_gpio, 0);
msleep(MXT_RESET_INVALID_CHG);
}
--
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