From f70575805708cabdedea7498aaa3f710fde4d920 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 03:29:01 +0000
Subject: [PATCH] add lvds1024*800
---
kernel/drivers/hwmon/w83793.c | 72 ++++++++++--------------------------
1 files changed, 20 insertions(+), 52 deletions(-)
diff --git a/kernel/drivers/hwmon/w83793.c b/kernel/drivers/hwmon/w83793.c
index 0af0f62..1d2854d 100644
--- a/kernel/drivers/hwmon/w83793.c
+++ b/kernel/drivers/hwmon/w83793.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* w83793.c - Linux kernel driver for hardware monitoring
* Copyright (C) 2006 Winbond Electronics Corp.
@@ -7,20 +8,6 @@
* Watchdog driver part
* (Based partially on fschmd driver,
* Copyright 2007-2008 by Hans de Goede)
- *
- * 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 - version 2.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301 USA.
*/
/*
@@ -215,7 +202,6 @@
}
struct w83793_data {
- struct i2c_client *lm75[2];
struct device *hwmon_dev;
struct mutex update_lock;
char valid; /* !=0 if following fields are valid */
@@ -296,8 +282,7 @@
static u8 w83793_read_value(struct i2c_client *client, u16 reg);
static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value);
-static int w83793_probe(struct i2c_client *client,
- const struct i2c_device_id *id);
+static int w83793_probe(struct i2c_client *client);
static int w83793_detect(struct i2c_client *client,
struct i2c_board_info *info);
static int w83793_remove(struct i2c_client *client);
@@ -316,7 +301,7 @@
.driver = {
.name = "w83793",
},
- .probe = w83793_probe,
+ .probe_new = w83793_probe,
.remove = w83793_remove,
.id_table = w83793_id,
.detect = w83793_detect,
@@ -1341,7 +1326,7 @@
/* Store pointer to data into filp's private data */
filp->private_data = data;
- return nonseekable_open(inode, filp);
+ return stream_open(inode, filp);
}
static int watchdog_close(struct inode *inode, struct file *filp)
@@ -1471,6 +1456,7 @@
.release = watchdog_close,
.write = watchdog_write,
.unlocked_ioctl = watchdog_ioctl,
+ .compat_ioctl = compat_ptr_ioctl,
};
/*
@@ -1564,9 +1550,6 @@
for (i = 0; i < ARRAY_SIZE(w83793_temp); i++)
device_remove_file(dev, &w83793_temp[i].dev_attr);
- i2c_unregister_device(data->lm75[0]);
- i2c_unregister_device(data->lm75[1]);
-
/* Decrease data reference counter */
mutex_lock(&watchdog_data_mutex);
kref_put(&data->kref, w83793_release_resources);
@@ -1578,11 +1561,10 @@
static int
w83793_detect_subclients(struct i2c_client *client)
{
- int i, id, err;
+ int i, id;
int address = client->addr;
u8 tmp;
struct i2c_adapter *adapter = client->adapter;
- struct w83793_data *data = i2c_get_clientdata(client);
id = i2c_adapter_id(adapter);
if (force_subclients[0] == id && force_subclients[1] == address) {
@@ -1593,8 +1575,7 @@
"invalid subclient "
"address %d; must be 0x48-0x4f\n",
force_subclients[i]);
- err = -EINVAL;
- goto ERROR_SC_0;
+ return -EINVAL;
}
}
w83793_write_value(client, W83793_REG_I2C_SUBADDR,
@@ -1603,29 +1584,20 @@
}
tmp = w83793_read_value(client, W83793_REG_I2C_SUBADDR);
- if (!(tmp & 0x08))
- data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (tmp & 0x7));
- if (!(tmp & 0x80)) {
- if ((data->lm75[0] != NULL)
- && ((tmp & 0x7) == ((tmp >> 4) & 0x7))) {
- dev_err(&client->dev,
- "duplicate addresses 0x%x, "
- "use force_subclients\n", data->lm75[0]->addr);
- err = -ENODEV;
- goto ERROR_SC_1;
- }
- data->lm75[1] = i2c_new_dummy(adapter,
- 0x48 + ((tmp >> 4) & 0x7));
+
+ if (!(tmp & 0x88) && (tmp & 0x7) == ((tmp >> 4) & 0x7)) {
+ dev_err(&client->dev,
+ "duplicate addresses 0x%x, use force_subclient\n", 0x48 + (tmp & 0x7));
+ return -ENODEV;
}
+ if (!(tmp & 0x08))
+ devm_i2c_new_dummy_device(&client->dev, adapter, 0x48 + (tmp & 0x7));
+
+ if (!(tmp & 0x80))
+ devm_i2c_new_dummy_device(&client->dev, adapter, 0x48 + ((tmp >> 4) & 0x7));
+
return 0;
-
- /* Undo inits in case of errors */
-
-ERROR_SC_1:
- i2c_unregister_device(data->lm75[0]);
-ERROR_SC_0:
- return err;
}
/* Return 0 if detection is successful, -ENODEV otherwise */
@@ -1669,8 +1641,7 @@
return 0;
}
-static int w83793_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int w83793_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
static const int watchdog_minors[] = {
@@ -1958,9 +1929,6 @@
for (i = 0; i < ARRAY_SIZE(w83793_temp); i++)
device_remove_file(dev, &w83793_temp[i].dev_attr);
-
- i2c_unregister_device(data->lm75[0]);
- i2c_unregister_device(data->lm75[1]);
free_mem:
kfree(data);
exit:
@@ -2123,7 +2091,7 @@
static u8 w83793_read_value(struct i2c_client *client, u16 reg)
{
struct w83793_data *data = i2c_get_clientdata(client);
- u8 res = 0xff;
+ u8 res;
u8 new_bank = reg >> 8;
new_bank |= data->bank & 0xfc;
--
Gitblit v1.6.2