linux-kernel - [PATCH] hwmon:q54sj108a2: the PMBUS_MFR

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Message-Id: <20210517222606.3457594-1-linchuyuan@google.com>
Date:   Mon, 17 May 2021 22:26:06 +0000
From:   Chu Lin <linchuyuan@...gle.com>
To:     linchuyuan@...il.com, jasonling@...gle.com, zhongqil@...gle.com,
        linux@...ck-us.net, jdelvare@...e.com, linux-hwmon@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Chu Lin <linchuyuan@...gle.com>
Subject: [PATCH] hwmon:q54sj108a2: the PMBUS_MFR_ID is actually 6 chars
 instead of 5

The PMBUS_MFR_ID block is actually 6 chars for q54sj108a2.
/sys/bus/i2c/drivers/q54sj108a2_test# iotools smbus_read8 $BUS $ADDR 0x99
0x06

Tested: Devices are able to bind to the q54sj108a2 driver successfully.

Signed-off-by: Chu Lin <linchuyuan@...gle.com>
---
 drivers/hwmon/pmbus/q54sj108a2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/pmbus/q54sj108a2.c b/drivers/hwmon/pmbus/q54sj108a2.c
index aec512766c31..0976268b2670 100644
--- a/drivers/hwmon/pmbus/q54sj108a2.c
+++ b/drivers/hwmon/pmbus/q54sj108a2.c
@@ -299,7 +299,7 @@ static int q54sj108a2_probe(struct i2c_client *client)
 		dev_err(&client->dev, "Failed to read Manufacturer ID\n");
 		return ret;
 	}
-	if (ret != 5 || strncmp(buf, "DELTA", 5)) {
+	if (ret != 6 || strncmp(buf, "DELTA", 5)) {
 		buf[ret] = '\0';
 		dev_err(dev, "Unsupported Manufacturer ID '%s'\n", buf);
 		return -ENODEV;
-- 
2.31.1.751.gd2f1c929bd-goog