github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-12 16:18:45 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

hwmon: (pmbus) Add Delta Q54SN120A1 Q54SW120A7 chip

Browse Source 
Add the DELTA chips Q54SN120A1, Q54SW120A7 in q54sj108a2,
1/4 Brick DC/DC Regulated Power Module with PMBus support

Signed-off-by: Colin Huang <u8813345@gmail.com>
Link: https://lore.kernel.org/r/20260316-add-q54sn120a1-q54q54sw120a7-v2-2-60e6182cc4a7@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Colin Huang 2026-03-16 16:39:34 +08:00 committed by Guenter Roeck
parent 32a7bdbd20
commit ffa2ad0aa6
1 changed files with 15 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/hwmon/pmbus/q54sj108a2.c
View File

@ -271,6 +271,8 @@ static const struct file_operations q54sj108a2_fops = {
static const struct i2c_device_id q54sj108a2_id[] = {
{ "q54sj108a2", q54sj108a2 },
{ "q54sn120a1", q54sj108a2 },
{ "q54sw120a7", q54sj108a2 },
{ },
};
@ -280,6 +282,7 @@ static int q54sj108a2_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
u8 buf[I2C_SMBUS_BLOCK_MAX + 1];
const struct i2c_device_id *mid;
enum chips chip_id;
int ret, i;
struct dentry *debugfs;
@ -313,8 +316,12 @@ static int q54sj108a2_probe(struct i2c_client *client)
dev_err(dev, "Failed to read Manufacturer Model\n");
return ret;
}
if (ret != 14 || strncmp(buf, "Q54SJ108A2", 10)) {
buf[ret] = '\0';
buf[ret] = '\0';
for (mid = q54sj108a2_id; mid->name[0]; mid++) {
if (!strncasecmp(mid->name, buf, strlen(mid->name)))
break;
}
if (!mid->name[0]) {
dev_err(dev, "Unsupported Manufacturer Model '%s'\n", buf);
return -ENODEV;
}
@ -324,7 +331,10 @@ static int q54sj108a2_probe(struct i2c_client *client)
dev_err(dev, "Failed to read Manufacturer Revision\n");
return ret;
}
if (ret != 4 || buf[0] != 'S') {
/*
* accept manufacturer revision with optional NUL byte
*/
if (!(ret == 4 || ret == 5) || buf[0] != 'S') {
buf[ret] = '\0';
dev_err(dev, "Unsupported Manufacturer Revision '%s'\n", buf);
return -ENODEV;
@ -401,6 +411,8 @@ static int q54sj108a2_probe(struct i2c_client *client)
static const struct of_device_id q54sj108a2_of_match[] = {
{ .compatible = "delta,q54sj108a2", .data = (void *)q54sj108a2 },
{ .compatible = "delta,q54sn120a1", .data = (void *)q54sj108a2 },
{ .compatible = "delta,q54sw120a7", .data = (void *)q54sj108a2 },
{ },
};