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/ad7879.c | 121 +++++++++++++--------------------------
1 files changed, 41 insertions(+), 80 deletions(-)
diff --git a/kernel/drivers/input/touchscreen/ad7879.c b/kernel/drivers/input/touchscreen/ad7879.c
index 6bad23e..556a2af 100644
--- a/kernel/drivers/input/touchscreen/ad7879.c
+++ b/kernel/drivers/input/touchscreen/ad7879.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* AD7879/AD7889 based touchscreen and GPIO driver
*
* Copyright (C) 2008-2010 Michael Hennerich, Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
*
* History:
* Copyright (c) 2005 David Brownell
@@ -29,10 +28,9 @@
#include <linux/property.h>
#include <linux/regmap.h>
#include <linux/slab.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/input/touchscreen.h>
-#include <linux/platform_data/ad7879.h>
#include <linux/module.h>
#include "ad7879.h"
@@ -247,11 +245,14 @@
static irqreturn_t ad7879_irq(int irq, void *handle)
{
struct ad7879 *ts = handle;
+ int error;
- regmap_bulk_read(ts->regmap, AD7879_REG_XPLUS,
- ts->conversion_data, AD7879_NR_SENSE);
-
- if (!ad7879_report(ts))
+ error = regmap_bulk_read(ts->regmap, AD7879_REG_XPLUS,
+ ts->conversion_data, AD7879_NR_SENSE);
+ if (error)
+ dev_err_ratelimited(ts->dev, "failed to read %#02x: %d\n",
+ AD7879_REG_XPLUS, error);
+ else if (!ad7879_report(ts))
mod_timer(&ts->timer, jiffies + TS_PEN_UP_TIMEOUT);
return IRQ_HANDLED;
@@ -290,7 +291,7 @@
return 0;
}
-static void ad7879_close(struct input_dev* input)
+static void ad7879_close(struct input_dev *input)
{
struct ad7879 *ts = input_get_drvdata(input);
@@ -452,47 +453,36 @@
mutex_unlock(&ts->mutex);
}
-static int ad7879_gpio_add(struct ad7879 *ts,
- const struct ad7879_platform_data *pdata)
+static int ad7879_gpio_add(struct ad7879 *ts)
{
- bool gpio_export;
- int gpio_base;
int ret = 0;
-
- if (pdata) {
- gpio_export = pdata->gpio_export;
- gpio_base = pdata->gpio_base;
- } else {
- gpio_export = device_property_read_bool(ts->dev,
- "gpio-controller");
- gpio_base = -1;
- }
mutex_init(&ts->mutex);
- if (gpio_export) {
- ts->gc.direction_input = ad7879_gpio_direction_input;
- ts->gc.direction_output = ad7879_gpio_direction_output;
- ts->gc.get = ad7879_gpio_get_value;
- ts->gc.set = ad7879_gpio_set_value;
- ts->gc.can_sleep = 1;
- ts->gc.base = gpio_base;
- ts->gc.ngpio = 1;
- ts->gc.label = "AD7879-GPIO";
- ts->gc.owner = THIS_MODULE;
- ts->gc.parent = ts->dev;
+ /* Do not create a chip unless flagged for it */
+ if (!device_property_read_bool(ts->dev, "gpio-controller"))
+ return 0;
- ret = devm_gpiochip_add_data(ts->dev, &ts->gc, ts);
- if (ret)
- dev_err(ts->dev, "failed to register gpio %d\n",
- ts->gc.base);
- }
+ ts->gc.direction_input = ad7879_gpio_direction_input;
+ ts->gc.direction_output = ad7879_gpio_direction_output;
+ ts->gc.get = ad7879_gpio_get_value;
+ ts->gc.set = ad7879_gpio_set_value;
+ ts->gc.can_sleep = 1;
+ ts->gc.base = -1;
+ ts->gc.ngpio = 1;
+ ts->gc.label = "AD7879-GPIO";
+ ts->gc.owner = THIS_MODULE;
+ ts->gc.parent = ts->dev;
+
+ ret = devm_gpiochip_add_data(ts->dev, &ts->gc, ts);
+ if (ret)
+ dev_err(ts->dev, "failed to register gpio %d\n",
+ ts->gc.base);
return ret;
}
#else
-static int ad7879_gpio_add(struct ad7879 *ts,
- const struct ad7879_platform_data *pdata)
+static int ad7879_gpio_add(struct ad7879 *ts)
{
return 0;
}
@@ -527,7 +517,6 @@
int ad7879_probe(struct device *dev, struct regmap *regmap,
int irq, u16 bustype, u8 devid)
{
- struct ad7879_platform_data *pdata = dev_get_platdata(dev);
struct ad7879 *ts;
struct input_dev *input_dev;
int err;
@@ -542,22 +531,9 @@
if (!ts)
return -ENOMEM;
- if (pdata) {
- /* Platform data use swapped axis (backward compatibility) */
- ts->swap_xy = !pdata->swap_xy;
-
- ts->x_plate_ohms = pdata->x_plate_ohms ? : 400;
-
- ts->first_conversion_delay = pdata->first_conversion_delay;
- ts->acquisition_time = pdata->acquisition_time;
- ts->averaging = pdata->averaging;
- ts->pen_down_acc_interval = pdata->pen_down_acc_interval;
- ts->median = pdata->median;
- } else {
- err = ad7879_parse_dt(dev, ts);
- if (err)
- return err;
- }
+ err = ad7879_parse_dt(dev, ts);
+ if (err)
+ return err;
input_dev = devm_input_allocate_device(dev);
if (!input_dev) {
@@ -585,28 +561,13 @@
input_set_capability(input_dev, EV_KEY, BTN_TOUCH);
- if (pdata) {
- input_set_abs_params(input_dev, ABS_X,
- pdata->x_min ? : 0,
- pdata->x_max ? : MAX_12BIT,
- 0, 0);
- input_set_abs_params(input_dev, ABS_Y,
- pdata->y_min ? : 0,
- pdata->y_max ? : MAX_12BIT,
- 0, 0);
- input_set_abs_params(input_dev, ABS_PRESSURE,
- pdata->pressure_min,
- pdata->pressure_max ? : ~0,
- 0, 0);
- } else {
- input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, 0, 0);
- input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, 0, 0);
- input_set_capability(input_dev, EV_ABS, ABS_PRESSURE);
- touchscreen_parse_properties(input_dev, false, NULL);
- if (!input_abs_get_max(input_dev, ABS_PRESSURE)) {
- dev_err(dev, "Touchscreen pressure is not specified\n");
- return -EINVAL;
- }
+ input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, 0, 0);
+ input_set_capability(input_dev, EV_ABS, ABS_PRESSURE);
+ touchscreen_parse_properties(input_dev, false, NULL);
+ if (!input_abs_get_max(input_dev, ABS_PRESSURE)) {
+ dev_err(dev, "Touchscreen pressure is not specified\n");
+ return -EINVAL;
}
err = ad7879_write(ts, AD7879_REG_CTRL2, AD7879_RESET);
@@ -655,7 +616,7 @@
if (err)
return err;
- err = ad7879_gpio_add(ts, pdata);
+ err = ad7879_gpio_add(ts);
if (err)
return err;
--
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