From 297b60346df8beafee954a0fd7c2d64f33f3b9bc Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 01:44:05 +0000
Subject: [PATCH] rtl8211F_led_control
---
kernel/drivers/watchdog/w83627hf_wdt.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++---------
1 files changed, 46 insertions(+), 9 deletions(-)
diff --git a/kernel/drivers/watchdog/w83627hf_wdt.c b/kernel/drivers/watchdog/w83627hf_wdt.c
index 4b9365d..56a4a40 100644
--- a/kernel/drivers/watchdog/w83627hf_wdt.c
+++ b/kernel/drivers/watchdog/w83627hf_wdt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
/*
* w83627hf/thf WDT driver
*
@@ -17,11 +18,6 @@
* (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>,
* All Rights Reserved.
*
- * 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.
- *
* Neither Alan Cox nor CymruNet Ltd. admit liability nor provide
* warranty for any of this software. This material is provided
* "AS-IS" and at no charge.
@@ -38,6 +34,7 @@
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/io.h>
+#include <linux/dmi.h>
#define WATCHDOG_NAME "w83627hf/thf/hg/dhg WDT"
#define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */
@@ -46,11 +43,13 @@
static int cr_wdt_timeout; /* WDT timeout register */
static int cr_wdt_control; /* WDT control register */
static int cr_wdt_csr; /* WDT control & status register */
+static int wdt_cfg_enter = 0x87;/* key to unlock configuration space */
+static int wdt_cfg_leave = 0xAA;/* key to lock configuration space */
enum chips { w83627hf, w83627s, w83697hf, w83697ug, w83637hf, w83627thf,
w83687thf, w83627ehf, w83627dhg, w83627uhg, w83667hg, w83627dhg_p,
w83667hg_b, nct6775, nct6776, nct6779, nct6791, nct6792, nct6793,
- nct6795, nct6796, nct6102 };
+ nct6795, nct6796, nct6102, nct6116 };
static int timeout; /* in seconds */
module_param(timeout, int, 0);
@@ -95,6 +94,7 @@
#define NCT6775_ID 0xb4
#define NCT6776_ID 0xc3
#define NCT6102_ID 0xc4
+#define NCT6116_ID 0xd2
#define NCT6779_ID 0xc5
#define NCT6791_ID 0xc8
#define NCT6792_ID 0xc9
@@ -130,8 +130,8 @@
if (!request_muxed_region(wdt_io, 2, WATCHDOG_NAME))
return -EBUSY;
- outb_p(0x87, WDT_EFER); /* Enter extended function mode */
- outb_p(0x87, WDT_EFER); /* Again according to manual */
+ outb_p(wdt_cfg_enter, WDT_EFER); /* Enter extended function mode */
+ outb_p(wdt_cfg_enter, WDT_EFER); /* Again according to manual */
return 0;
}
@@ -143,7 +143,7 @@
static void superio_exit(void)
{
- outb_p(0xAA, WDT_EFER); /* Leave extended function mode */
+ outb_p(wdt_cfg_leave, WDT_EFER); /* Leave extended function mode */
release_region(wdt_io, 2);
}
@@ -212,6 +212,7 @@
case nct6795:
case nct6796:
case nct6102:
+ case nct6116:
/*
* These chips have a fixed WDTO# output pin (W83627UHG),
* or support more than one WDTO# output pin.
@@ -418,6 +419,12 @@
cr_wdt_control = NCT6102D_WDT_CONTROL;
cr_wdt_csr = NCT6102D_WDT_CSR;
break;
+ case NCT6116_ID:
+ ret = nct6116;
+ cr_wdt_timeout = NCT6102D_WDT_TIMEOUT;
+ cr_wdt_control = NCT6102D_WDT_CONTROL;
+ cr_wdt_csr = NCT6102D_WDT_CSR;
+ break;
case 0xff:
ret = -ENODEV;
break;
@@ -429,6 +436,32 @@
superio_exit();
return ret;
}
+
+/*
+ * On some systems, the NCT6791D comes with a companion chip and the
+ * watchdog function is in this companion chip. We must use a different
+ * unlocking sequence to access the companion chip.
+ */
+static int __init wdt_use_alt_key(const struct dmi_system_id *d)
+{
+ wdt_cfg_enter = 0x88;
+ wdt_cfg_leave = 0xBB;
+
+ return 0;
+}
+
+static const struct dmi_system_id wdt_dmi_table[] __initconst = {
+ {
+ .matches = {
+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "INVES"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "CTS"),
+ DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "INVES"),
+ DMI_EXACT_MATCH(DMI_BOARD_NAME, "SHARKBAY"),
+ },
+ .callback = wdt_use_alt_key,
+ },
+ {}
+};
static int __init wdt_init(void)
{
@@ -457,8 +490,12 @@
"NCT6795",
"NCT6796",
"NCT6102",
+ "NCT6116",
};
+ /* Apply system-specific quirks */
+ dmi_check_system(wdt_dmi_table);
+
wdt_io = 0x2e;
chip = wdt_find(0x2e);
if (chip < 0) {
--
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