mirror of
git://git.openwrt.org/openwrt/openwrt.git
synced 2025-10-31 05:54:26 -04:00
53ab9865c2
Signed-off-by: David Bauer <mail@david-bauer.net> [refreshed] Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com> * Sync the patches with the changes done for kernel 4.19 * Use KERNEL_TESTING_PATCHVER * Refresh the configuration * Fix multiple compile bugs in the patches * Only add own ag71xx files for kernel 4.19 and use upstream version for 5.4. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
66 lines
1.8 KiB
Diff
66 lines
1.8 KiB
Diff
From 694f9bfb8efaef8a33e8992015ff9d0866faf4a2 Mon Sep 17 00:00:00 2001
|
|
From: Christian Lamparter <chunkeey@gmail.com>
|
|
Date: Sun, 17 Dec 2017 17:27:15 +0100
|
|
Subject: [PATCH 1/2] hwmon: tc654 add detection routine
|
|
|
|
This patch adds a detection routine for the TC654/TC655
|
|
chips. Both IDs are listed in the Datasheet.
|
|
|
|
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
|
|
---
|
|
drivers/hwmon/tc654.c | 29 +++++++++++++++++++++++++++++
|
|
1 file changed, 29 insertions(+)
|
|
|
|
--- a/drivers/hwmon/tc654.c
|
|
+++ b/drivers/hwmon/tc654.c
|
|
@@ -55,6 +55,11 @@ enum tc654_regs {
|
|
/* Register data is read (and cached) at most once per second. */
|
|
#define TC654_UPDATE_INTERVAL HZ
|
|
|
|
+/* Manufacturer and Version Identification Register Values */
|
|
+#define TC654_MFR_ID_MICROCHIP 0x84
|
|
+#define TC654_VER_ID 0x00
|
|
+#define TC655_VER_ID 0x01
|
|
+
|
|
struct tc654_data {
|
|
struct i2c_client *client;
|
|
|
|
@@ -482,6 +487,29 @@ static const struct i2c_device_id tc654_
|
|
{}
|
|
};
|
|
|
|
+static int
|
|
+tc654_detect(struct i2c_client *new_client, struct i2c_board_info *info)
|
|
+{
|
|
+ struct i2c_adapter *adapter = new_client->adapter;
|
|
+ int manufacturer, product;
|
|
+
|
|
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
|
|
+ return -ENODEV;
|
|
+
|
|
+ manufacturer = i2c_smbus_read_byte_data(new_client, TC654_REG_MFR_ID);
|
|
+ if (manufacturer != TC654_MFR_ID_MICROCHIP)
|
|
+ return -ENODEV;
|
|
+
|
|
+ product = i2c_smbus_read_byte_data(new_client, TC654_REG_VER_ID);
|
|
+ if (!((product == TC654_VER_ID) || (product == TC655_VER_ID)))
|
|
+ return -ENODEV;
|
|
+
|
|
+ strlcpy(info->type, product == TC654_VER_ID ? "tc654" : "tc655",
|
|
+ I2C_NAME_SIZE);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+
|
|
MODULE_DEVICE_TABLE(i2c, tc654_id);
|
|
|
|
static struct i2c_driver tc654_driver = {
|
|
@@ -490,6 +518,7 @@ static struct i2c_driver tc654_driver =
|
|
},
|
|
.probe = tc654_probe,
|
|
.id_table = tc654_id,
|
|
+ .detect = tc654_detect,
|
|
};
|
|
|
|
module_i2c_driver(tc654_driver);
|