[ 3.5.y.z extended stable ] Patch "hwmon: (pmbus/ltc2978) Use detected chip ID to select" has been added to staging queue

Luis Henriques luis.henriques at canonical.com
Mon Mar 11 12:07:48 UTC 2013

This is a note to let you know that I have just added a patch titled

    hwmon: (pmbus/ltc2978) Use detected chip ID to select

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:


If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see



>From 058f074787aeeebc302cbd34c32cef662151c90e Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux at roeck-us.net>
Date: Thu, 21 Feb 2013 10:49:40 -0800
Subject: [PATCH] hwmon: (pmbus/ltc2978) Use detected chip ID to select
 supported functionality

commit f366fccd0809f13ba20d64cae3c83f7338c88af7 upstream.

We read the chip ID from the chip, use it to determine if the chip ID provided
to the driver is correct, and report it if wrong. We should also use the
correct chip ID to select supported functionality.

Signed-off-by: Guenter Roeck <linux at roeck-us.net>
Acked-by: Jean Delvare <khali at linux-fr.org>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
 drivers/hwmon/pmbus/ltc2978.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/pmbus/ltc2978.c b/drivers/hwmon/pmbus/ltc2978.c
index cc29a7e..a58de38 100644
--- a/drivers/hwmon/pmbus/ltc2978.c
+++ b/drivers/hwmon/pmbus/ltc2978.c
@@ -326,7 +326,7 @@ static int ltc2978_probe(struct i2c_client *client,
 	data->temp_max = 0x7c00;
 	data->temp2_max = 0x7c00;

-	switch (id->driver_data) {
+	switch (data->id) {
 	case ltc2978:
 		info->read_word_data = ltc2978_read_word_data;
 		info->pages = 8;

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